US20130212518A1 - Display tag, display tag system having display tag, and method for writing display tag information - Google Patents
Display tag, display tag system having display tag, and method for writing display tag information Download PDFInfo
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- US20130212518A1 US20130212518A1 US13/775,948 US201313775948A US2013212518A1 US 20130212518 A1 US20130212518 A1 US 20130212518A1 US 201313775948 A US201313775948 A US 201313775948A US 2013212518 A1 US2013212518 A1 US 2013212518A1
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- Prior art keywords
- tag
- display
- image
- writing area
- mobile device
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
- G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
Definitions
- Apparatuses and methods consistent with the present invention relate to a display tag, a display tag system having the display tag, and a method for writing display tag information, and more particularly, to a display tag which captures a display image from an external source and displays the image, a display tag system having the display tag, and a method for writing display tag information.
- a radio frequency system employing the radio frequency technology may include components such as a tag, a tag reader, or a tag writer.
- a tag of such a radio frequency system may be classified as either a passive tag, which receives energy from an electromagnetic wave signal of a tag reader or tag writer without requiring inner power, or an active tag, which generates power by itself.
- the tag may also be classified as either a chip tag, which uses a silicon semiconductor chip, or a chipless tag, which employs an LC element, or a plastic or polymer element.
- a related art radio frequency system transmits or receives tag information between a tag and a tag reader or tag writer using electromagnetic waves such as radio frequencies (RF). Accordingly, it is difficult to check tag information recorded in a tag without using a tag reader having a display.
- RF radio frequencies
- Exemplary embodiments of the present invention address at least the above problems and/or disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary embodiment of the present invention may not overcome any of the problems described above.
- the present invention provides a display tag which captures a display image from external, and displays the captured image, a display tag system having the display tag, and a method for writing tag information.
- a display tag including a sensing unit which captures an image displayed on a screen of an external tag writer, if the sensing unit is disposed opposite the screen; and a display unit which displays the captured image.
- the display tag may include electronic paper (E-paper).
- E-paper electronic paper
- the display may further include a switching unit which controls the on-off operation of the sensing unit.
- the display tag may further include a power generator which generates power using at least one of heat, vibration, rays emitted from the external tag writer, and electromagnetic waves, and operates the sensing unit and the display unit.
- a power generator which generates power using at least one of heat, vibration, rays emitted from the external tag writer, and electromagnetic waves, and operates the sensing unit and the display unit.
- the display tag may further include a tag information storage unit which stores tag information acquired from the external tag writer.
- the sensing unit may include a plurality of sensors which comprises a sensing area which corresponds to the size of the display unit, and receives rays of an image displayed on a screen of an external display apparatus and output a signal corresponding to the intensity of the rays.
- the display tag may further include a driving circuit unit which controls each pixel of the display unit to be driven according to a signal output from the plurality of sensors, wherein the sensing unit, the driving circuit unit, and the display unit are disposed in successive layers.
- a display tag system including a tag writer which displays an image corresponding to tag information to be provided; and a display tag which captures an image displayed on a tag writing area, if a screen of the tag writer is disposed opposite the tag writing area.
- the tag writer may write tag information corresponding to the image on the display tag.
- a display apparatus including a display unit; and a sensing unit which captures an image displayed on a screen of an external display apparatus, and provides the display unit with the captured image, if the sensing unit is disposed opposite the screen.
- the display unit may include electronic paper (E-paper) which displays an image corresponding to the captured image, and maintains the same display condition even if the power is turned off.
- E-paper electronic paper
- a method for writing tag information of a display tag system including displaying at least one image corresponding to tag information which is capable of being provided by a tag writer; if one of the at least one image is selected, displaying the selected image on a tag writing area on a screen of the tag writer; and if a display tag having a display unit is disposed opposite the tag writing area, by the display tag, capturing an image displayed on the tag writing area, and displaying the captured image on the display unit, and by the tag writer, writing tag information corresponding to the selected image on the display tag.
- FIG. 1 is a block diagram illustrating a display tag according to an exemplary embodiment of the present invention
- FIG. 2 is a detailed block diagram illustrating the display tag of FIG. 1 ;
- FIG. 3 is a view illustrating an arrangement of components of a display tag according to an exemplary embodiment of the present invention
- FIG. 4 is a block diagram illustrating a display tag system according to an exemplary embodiment of the present invention.
- FIG. 5 is a flowchart illustrating a method for writing tag information of a display tag system according to an exemplary embodiment of the present invention
- FIGS. 6A-6C are views provided to explain the method of FIG. 5 ;
- FIGS. 7A and 7B are views provided to explain the method of FIG. 5 .
- FIG. 1 is a block diagram illustrating a display tag according to an exemplary embodiment of the present invention.
- a display tag 100 may include a sensing unit 110 and a display unit 120 .
- the sensing unit 110 When the sensing unit 110 is disposed opposite a screen of an external tag writer, the sensing unit 110 captures an image displayed on the opposite screen.
- the display unit 120 displays the captured image.
- An external tag writer (not shown) includes a display screen, and displays an image on the display screen.
- the external tag writer can be, for example, a television (TV), a display apparatus such as a monitor of a computer, or a separately fabricated display apparatus.
- the sensing unit 110 of the display tag 100 captures an image displayed on the tag writing area opposite the sensing unit 110 , and displays the captured image on the display unit 120 of the display tag 100 .
- the tag writing area of the external tag writer may be disposed opposite the sensing unit 110 of the display tag 100 . As the display tag 100 is thin, the tag writing area of the external tag writer (not shown) may be disposed opposite the display unit 120 of the display tag 100 .
- the sensing unit 110 includes a sensing area which corresponds to the size of the display unit 120 , and a plurality of sensors which receive rays of an image displayed on a screen of an external display apparatus (not shown) and output a signal corresponding to the intensity of the rays.
- the display unit 120 may be composed of an electronic paper (E-paper). If the display unit 120 is composed of E-paper, the display unit 120 may display a currently captured image without requiring additional power.
- E-paper electronic paper
- the display tag 100 may be disposed to contact an area of the external tag writer (not shown) on which an image is displayed, or may be disposed apart from the area at a predetermined interval.
- the image described here is merely exemplary, and if a user desires to view a movie through the external tag writer (not shown), or a TV or computer connected to the external tag writer (not shown), the image may be a movie poster for conveying movie information, and if a user desires to listen to music through an audio device, the image may be a music album cover.
- the image may also be an apartment logo to be displayed on a display tag of an apartment entry card.
- the display image is captured through the sensing unit 110 of the display tag 100 , so the speed of communication is enhanced when displaying an image using tag information received through a communication channel such as an RF.
- a user can view the information contained in the tag through the display unit 120 of the display tag 100 .
- FIG. 2 is a detailed block diagram illustrating the display tag of FIG. 1 .
- the display tag 100 may include a power generator 130 , a tag information storage unit 140 , a driving circuit unit 150 , and a switching unit 160 in addition to the sensing unit 110 and the display unit 120 illustrated in FIG. 1 .
- the power generator 130 generates power using at least one of heat, vibrations, rays emitted from the external tag writer (not shown), and electromagnetic waves, and enables the sensing unit 110 and the display unit 120 to operate.
- the sensing unit 110 captures an image, and concurrently the power generator 130 generates power required to drive the sensing unit 110 and the display unit 120 using rays emitted from the image displayed on the external tag writer (not shown).
- the power generator 130 may convert light energy into electrical energy using an amorphous solar battery having a solar cell which is used with a small sized electronic calculator.
- the power generator 130 may also generate electrical energy using backscattering which generates induced power on a related art passive tag. If electromagnetic waves such as radio waves are provided on the display tag 100 via an external antenna, the induced current flows through a coil (not shown) provided in the display tag 100 . The induced current causes the display tag 100 to be driven, and the display tag 100 re-transmits the provided electromagnetic waves to an external device as reflected waves.
- vibration is generated on the display tag 100 , for example if user shakes the display tag 100 , the vibration causes the induced power to be generated.
- a vibrator having a cantilever structure is provided in a coil for generating induced current. If the vibrator vibrates, the induced current flows through the coil, and the coil stores the induced current using a capacitor. Thus, electrical energy is generated. Elements such as piezoelectric ceramics may be vibrated so as to generate electrical energy.
- induced power may be generated using the generated heat.
- the heat may be converted into electrical energy according to the difference in temperature between the two ends of a thermoelectric element among various thermoelectric elements which generate electrical energy.
- the power generator 130 includes solar cells, and thus may generate electrical energy using the heat derived from solar energy.
- the tag information storage unit 140 may store tag information acquired from the external tag writer (not shown).
- the external tag writer (not shown) transmits tag information to the display tag 100 in electromagnetic wave form, such as radio waves, and the tag information storage unit 140 of the display tag 100 receives tag information from the external tag writer (not shown), and stores the tag information in the tag information storage unit 140 . If the external tag writer (not shown) transmits tag information, the display tag 100 merely receives the tag information. Accordingly, the tag information storage unit 140 may not be connected to other components, as shown in FIG. 2 . On the other hand, the tag information storage unit 140 is connected to the driving circuit unit 150 , and thus tag information is displayed on the display unit 120 .
- the tag information may include various information indicating, for example a path to access a movie file, actors appearing in the movie, or the running time of the movie. That is, the tag information generally represents all of the information transmitted to a tag in a tag system having a tag reader and writer.
- the driving circuit unit 150 controls each pixel of the display unit 120 to be driven according to a signal output from the plurality of sensors.
- the power generated by the power generator 130 may be input to the driving circuit unit 150 to drive each pixel of the display unit 120 .
- the switching unit 160 may control the on-off operation of the sensing unit 110 to be turned on or off.
- the display tag 100 may capture an external screen using the sensing unit 110 . However, it is not necessary that the sensing unit 110 always captures a display screen.
- the switching unit 160 may be a switch which is attached to the display tag 100 , and which adjusts the sensing unit 110 between on and off states.
- the switching unit 160 operates similarly to a switch which is disposed on a rear surface of a floppy disc, and which controls the disc to be write-protected. Accordingly, the switching unit 160 controls whether to capture a screen of the external display apparatus.
- FIG. 3 is a view illustrating an arrangement of components of a display tag according to an exemplary embodiment of the present invention.
- the display tag 100 according to an exemplary embodiment of the present invention includes the sensing unit 110 , the driving circuit unit 150 , and the display unit 120 which are disposed in successive layers thereon.
- the sensing unit 110 may be provided as a layer having a plurality of sensors, the driving circuit unit 150 to control each pixel of the display unit 120 corresponding to the plurality of pixels to be driven may be provided as a layer, and the display unit 120 composed of E-paper may also be provided as a layer.
- the display tag 100 having the sensing unit 110 , the driving circuit unit 150 , and the display unit 120 which are disposed in successive layers may be fabricated using MicroElectroMechanical System (MEMS) processes, and thus the display tag 100 can be manufactured in large quantities at low cost.
- MEMS MicroElectroMechanical System
- the plurality of sensors provided on the sensing unit 110 may receive optical signals displayed on the screen of the external display apparatus (not shown).
- the display unit 120 includes a plurality of pixels corresponding one-to-one to the plurality of sensors receiving the optical signals, and the driving circuit unit 150 controls the plurality of pixels of the display unit 120 to be driven using the optical signals output from the plurality of sensors.
- FIG. 4 is a block diagram illustrating a display tag system according to an exemplary embodiment of the present invention.
- a display tag system 400 may include a tag writer 410 and a display tag 420 .
- the tag writer 410 displays an image corresponding to tag information to be provided. If the display tag 420 is disposed opposite a tag writing area on a screen of the tag writer 410 , the display tag 420 captures an image displayed on the tag writing area.
- the tag writer 410 may write tag information corresponding to the image on the display tag 420 .
- the tag writing area is disposed on the screen of the tag writer 410 , and may be disposed opposite a sensing area of the display tag 420 .
- the sensing area of the display tag 420 is preferably identical to the tag writing area in size, but the sensing area of the display tag 420 may be larger than the tag writing area of the tag writer 410 .
- the display tag 100 of FIG. 1 may be implemented using a general display apparatus rather than the display tag.
- the display apparatus may include a display unit and a sensing unit.
- the sensing unit captures an image displayed on an area corresponding to the display unit, and provides the display unit with the image.
- the display unit and the sensing unit of the display apparatus have functions similar to those of the display unit 120 and the sensing unit 110 of the display tag 100 illustrated in FIGS. 1 and 2 .
- the display apparatus does not operate as a display tag to communicate with a display writer and reader, and operates as an independent display apparatus.
- the display unit displays an image corresponding to the image captured by the sensing unit, and may be implemented as E-paper, which displays an image even when the power is turned off.
- the display apparatus may be a mobile phone, a portable multimedia player (PMP), or an electronic dictionary.
- the display apparatus may also be fabricated as a card which may be connected to a mobile phone.
- FIG. 5 is a flowchart illustrating a method for writing tag information of a display tag system according to an exemplary embodiment of the present invention
- FIGS. 6A and 6B are views provided to explain the method of FIG. 5 .
- a tag writer 610 displays an image corresponding to tag information to be provided (S 510 ). Specifically, the tag writer 610 may display a plurality of movie poster images 640 as shown in FIG. 6A .
- the tag writer 610 may display the selected image on a tag writing area of a screen (S 520 ). Specifically, if a user selects a movie poster image “LOST” from the plurality of movie poster images 640 , the selected movie poster image “LOST” is displayed on a tag writing area 630 of the tag writer 610 .
- the display tag 620 having the display unit captures an image displayed on the tag writing area 630 , and displays the captured image on the display unit, and the tag writer 610 writes tag information corresponding to the selected image on the display tag 620 (S 530 ).
- the display tag 620 captures an image displayed on the tag writing area 630 , and displays the captured image on the display unit as shown in FIG. 6C .
- the tag writer 610 may write the tag information corresponding to the selected image on the display tag 620 .
- FIGS. 7A and 7B are views provided to explain the method of FIG. 5 .
- FIGS. 7A and 7B illustrate another exemplary embodiment of operations S 510 and S 520 explained in FIG. 5 .
- a tag writer 700 of FIG. 7A may display a plurality of display images 710 , and a user may select a certain image 720 from the plurality of display images 710 .
- a user drags the selected image 720 , and drops the image 720 onto a tag writing area 730 using a mouse.
- the user may capture an image by disposing a display tag opposite the selected image 720 moved onto the tag writing area 730 .
- a display tag is provided to capture an image from an external source, and to display the captured image, so a user can view information regarding a tag. Therefore, user convenience is enhanced.
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Abstract
A display tag is provided. A display tag includes a sensing unit which captures an image displayed on a screen of an external tag writer, if a sensing unit is disposed opposite the screen; and a display unit which displays a captured image. Therefore, a user can visually recognize content related to tag information, and thus user convenience is enhanced.
Description
- This is a Continuation Application of U.S. application Ser. No. 12/330,878, filed in the U.S. Patent and Trademark Office on Dec. 9, 2008 which claims the benefit from Korean Patent Application No. 10-2008-0049236, filed on May 27, 2008, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in its entirety.
- 1. Field of the Invention
- Apparatuses and methods consistent with the present invention relate to a display tag, a display tag system having the display tag, and a method for writing display tag information, and more particularly, to a display tag which captures a display image from an external source and displays the image, a display tag system having the display tag, and a method for writing display tag information.
- 2. Description of the Related Art
- With the development of communication technology, technology using radio frequencies for tracing the location of products, managing stocks, identifying users, or obtaining content has become widespread. A radio frequency system employing the radio frequency technology may include components such as a tag, a tag reader, or a tag writer.
- A tag of such a radio frequency system may be classified as either a passive tag, which receives energy from an electromagnetic wave signal of a tag reader or tag writer without requiring inner power, or an active tag, which generates power by itself. The tag may also be classified as either a chip tag, which uses a silicon semiconductor chip, or a chipless tag, which employs an LC element, or a plastic or polymer element.
- A related art radio frequency system transmits or receives tag information between a tag and a tag reader or tag writer using electromagnetic waves such as radio frequencies (RF). Accordingly, it is difficult to check tag information recorded in a tag without using a tag reader having a display.
- Exemplary embodiments of the present invention address at least the above problems and/or disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary embodiment of the present invention may not overcome any of the problems described above.
- The present invention provides a display tag which captures a display image from external, and displays the captured image, a display tag system having the display tag, and a method for writing tag information.
- According to an exemplary aspect of the present invention, there is provided a display tag, including a sensing unit which captures an image displayed on a screen of an external tag writer, if the sensing unit is disposed opposite the screen; and a display unit which displays the captured image.
- The display tag may include electronic paper (E-paper).
- The display may further include a switching unit which controls the on-off operation of the sensing unit.
- The display tag may further include a power generator which generates power using at least one of heat, vibration, rays emitted from the external tag writer, and electromagnetic waves, and operates the sensing unit and the display unit.
- The display tag may further include a tag information storage unit which stores tag information acquired from the external tag writer.
- The sensing unit may include a plurality of sensors which comprises a sensing area which corresponds to the size of the display unit, and receives rays of an image displayed on a screen of an external display apparatus and output a signal corresponding to the intensity of the rays.
- The display tag may further include a driving circuit unit which controls each pixel of the display unit to be driven according to a signal output from the plurality of sensors, wherein the sensing unit, the driving circuit unit, and the display unit are disposed in successive layers.
- According to an exemplary aspect of the present invention, there is provided a display tag system including a tag writer which displays an image corresponding to tag information to be provided; and a display tag which captures an image displayed on a tag writing area, if a screen of the tag writer is disposed opposite the tag writing area.
- If the display tag is disposed opposite the tag writing area while an image is displayed on the tag writing area, the tag writer may write tag information corresponding to the image on the display tag.
- According to an exemplary aspect of the present invention, there is provided a display apparatus, including a display unit; and a sensing unit which captures an image displayed on a screen of an external display apparatus, and provides the display unit with the captured image, if the sensing unit is disposed opposite the screen.
- The display unit may include electronic paper (E-paper) which displays an image corresponding to the captured image, and maintains the same display condition even if the power is turned off.
- According to an exemplary aspect of the present invention, there is provided a method for writing tag information of a display tag system, the method including displaying at least one image corresponding to tag information which is capable of being provided by a tag writer; if one of the at least one image is selected, displaying the selected image on a tag writing area on a screen of the tag writer; and if a display tag having a display unit is disposed opposite the tag writing area, by the display tag, capturing an image displayed on the tag writing area, and displaying the captured image on the display unit, and by the tag writer, writing tag information corresponding to the selected image on the display tag.
- The above and/or other aspects of the present invention will be more apparent by describing certain exemplary embodiments of the present invention with reference to the accompanying drawings, in which:
-
FIG. 1 is a block diagram illustrating a display tag according to an exemplary embodiment of the present invention; -
FIG. 2 is a detailed block diagram illustrating the display tag ofFIG. 1 ; -
FIG. 3 is a view illustrating an arrangement of components of a display tag according to an exemplary embodiment of the present invention; -
FIG. 4 is a block diagram illustrating a display tag system according to an exemplary embodiment of the present invention; -
FIG. 5 is a flowchart illustrating a method for writing tag information of a display tag system according to an exemplary embodiment of the present invention; -
FIGS. 6A-6C are views provided to explain the method ofFIG. 5 ; and -
FIGS. 7A and 7B are views provided to explain the method ofFIG. 5 . - Certain exemplary embodiments of the present invention will now be described in greater detail with reference to the accompanying drawings.
- In the following description, the same drawing reference numerals are used for the same elements even in different drawings. The matters defined in the description, such as detailed construction and elements, are provided to assist in a comprehensive understanding of the invention. Thus, it is apparent that the present invention can be carried out without those specifically defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail.
-
FIG. 1 is a block diagram illustrating a display tag according to an exemplary embodiment of the present invention. Referring toFIG. 1 , adisplay tag 100 according to an exemplary embodiment of the present invention may include asensing unit 110 and adisplay unit 120. - When the
sensing unit 110 is disposed opposite a screen of an external tag writer, thesensing unit 110 captures an image displayed on the opposite screen. Thedisplay unit 120 displays the captured image. - An external tag writer (not shown) includes a display screen, and displays an image on the display screen. The external tag writer, can be, for example, a television (TV), a display apparatus such as a monitor of a computer, or a separately fabricated display apparatus.
- If the
display tag 100 is disposed opposite a tag writing area of the external tag writer on which an image is displayed, thesensing unit 110 of thedisplay tag 100 captures an image displayed on the tag writing area opposite thesensing unit 110, and displays the captured image on thedisplay unit 120 of thedisplay tag 100. - The tag writing area of the external tag writer (not shown) may be disposed opposite the
sensing unit 110 of thedisplay tag 100. As thedisplay tag 100 is thin, the tag writing area of the external tag writer (not shown) may be disposed opposite thedisplay unit 120 of thedisplay tag 100. - The
sensing unit 110 includes a sensing area which corresponds to the size of thedisplay unit 120, and a plurality of sensors which receive rays of an image displayed on a screen of an external display apparatus (not shown) and output a signal corresponding to the intensity of the rays. - The
display unit 120 may be composed of an electronic paper (E-paper). If thedisplay unit 120 is composed of E-paper, thedisplay unit 120 may display a currently captured image without requiring additional power. - The
display tag 100 may be disposed to contact an area of the external tag writer (not shown) on which an image is displayed, or may be disposed apart from the area at a predetermined interval. - The image described here is merely exemplary, and if a user desires to view a movie through the external tag writer (not shown), or a TV or computer connected to the external tag writer (not shown), the image may be a movie poster for conveying movie information, and if a user desires to listen to music through an audio device, the image may be a music album cover. The image may also be an apartment logo to be displayed on a display tag of an apartment entry card.
- The display image is captured through the
sensing unit 110 of thedisplay tag 100, so the speed of communication is enhanced when displaying an image using tag information received through a communication channel such as an RF. A user can view the information contained in the tag through thedisplay unit 120 of thedisplay tag 100. -
FIG. 2 is a detailed block diagram illustrating the display tag ofFIG. 1 . Referring toFIG. 2 , thedisplay tag 100 may include apower generator 130, a taginformation storage unit 140, a drivingcircuit unit 150, and aswitching unit 160 in addition to thesensing unit 110 and thedisplay unit 120 illustrated inFIG. 1 . - The
power generator 130 generates power using at least one of heat, vibrations, rays emitted from the external tag writer (not shown), and electromagnetic waves, and enables thesensing unit 110 and thedisplay unit 120 to operate. - In detail, the
sensing unit 110 captures an image, and concurrently thepower generator 130 generates power required to drive thesensing unit 110 and thedisplay unit 120 using rays emitted from the image displayed on the external tag writer (not shown). For example, thepower generator 130 may convert light energy into electrical energy using an amorphous solar battery having a solar cell which is used with a small sized electronic calculator. - The
power generator 130 may also generate electrical energy using backscattering which generates induced power on a related art passive tag. If electromagnetic waves such as radio waves are provided on thedisplay tag 100 via an external antenna, the induced current flows through a coil (not shown) provided in thedisplay tag 100. The induced current causes thedisplay tag 100 to be driven, and thedisplay tag 100 re-transmits the provided electromagnetic waves to an external device as reflected waves. - If vibration is generated on the
display tag 100, for example if user shakes thedisplay tag 100, the vibration causes the induced power to be generated. Specifically, a vibrator having a cantilever structure is provided in a coil for generating induced current. If the vibrator vibrates, the induced current flows through the coil, and the coil stores the induced current using a capacitor. Thus, electrical energy is generated. Elements such as piezoelectric ceramics may be vibrated so as to generate electrical energy. - If the
display tag 100 is heated, for example if a user rubs thedisplay tag 100, induced power may be generated using the generated heat. For example, if organic molecules are heated, the heat may be converted into electrical energy according to the difference in temperature between the two ends of a thermoelectric element among various thermoelectric elements which generate electrical energy. Thepower generator 130 includes solar cells, and thus may generate electrical energy using the heat derived from solar energy. - The tag
information storage unit 140 may store tag information acquired from the external tag writer (not shown). The external tag writer (not shown) transmits tag information to thedisplay tag 100 in electromagnetic wave form, such as radio waves, and the taginformation storage unit 140 of thedisplay tag 100 receives tag information from the external tag writer (not shown), and stores the tag information in the taginformation storage unit 140. If the external tag writer (not shown) transmits tag information, thedisplay tag 100 merely receives the tag information. Accordingly, the taginformation storage unit 140 may not be connected to other components, as shown inFIG. 2 . On the other hand, the taginformation storage unit 140 is connected to thedriving circuit unit 150, and thus tag information is displayed on thedisplay unit 120. - The tag information may include various information indicating, for example a path to access a movie file, actors appearing in the movie, or the running time of the movie. That is, the tag information generally represents all of the information transmitted to a tag in a tag system having a tag reader and writer.
- The driving
circuit unit 150 controls each pixel of thedisplay unit 120 to be driven according to a signal output from the plurality of sensors. The power generated by thepower generator 130 may be input to thedriving circuit unit 150 to drive each pixel of thedisplay unit 120. - The
switching unit 160 may control the on-off operation of thesensing unit 110 to be turned on or off. Thedisplay tag 100 according to an exemplary embodiment of the present invention may capture an external screen using thesensing unit 110. However, it is not necessary that thesensing unit 110 always captures a display screen. Specifically, when a user desires to capture an image from the external tag writer (not shown), the user controls theswitching unit 160 to turn on thesensing unit 110, so that thesensing unit 110 captures a screen of the external display apparatus. Theswitching unit 160 may be a switch which is attached to thedisplay tag 100, and which adjusts thesensing unit 110 between on and off states. Theswitching unit 160 operates similarly to a switch which is disposed on a rear surface of a floppy disc, and which controls the disc to be write-protected. Accordingly, theswitching unit 160 controls whether to capture a screen of the external display apparatus. -
FIG. 3 is a view illustrating an arrangement of components of a display tag according to an exemplary embodiment of the present invention. Referring toFIG. 3 , thedisplay tag 100 according to an exemplary embodiment of the present invention includes thesensing unit 110, the drivingcircuit unit 150, and thedisplay unit 120 which are disposed in successive layers thereon. - The
sensing unit 110 may be provided as a layer having a plurality of sensors, the drivingcircuit unit 150 to control each pixel of thedisplay unit 120 corresponding to the plurality of pixels to be driven may be provided as a layer, and thedisplay unit 120 composed of E-paper may also be provided as a layer. Thedisplay tag 100 having thesensing unit 110, the drivingcircuit unit 150, and thedisplay unit 120 which are disposed in successive layers may be fabricated using MicroElectroMechanical System (MEMS) processes, and thus thedisplay tag 100 can be manufactured in large quantities at low cost. - The plurality of sensors provided on the
sensing unit 110 may receive optical signals displayed on the screen of the external display apparatus (not shown). Thedisplay unit 120 includes a plurality of pixels corresponding one-to-one to the plurality of sensors receiving the optical signals, and the drivingcircuit unit 150 controls the plurality of pixels of thedisplay unit 120 to be driven using the optical signals output from the plurality of sensors. -
FIG. 4 is a block diagram illustrating a display tag system according to an exemplary embodiment of the present invention. Referring toFIG. 4 , adisplay tag system 400 according to an exemplary embodiment of the present invention may include atag writer 410 and adisplay tag 420. - The
tag writer 410 displays an image corresponding to tag information to be provided. If thedisplay tag 420 is disposed opposite a tag writing area on a screen of thetag writer 410, thedisplay tag 420 captures an image displayed on the tag writing area. - If the
display tag 420 is disposed opposite the tag writing area while an image is displayed on the tag writing area, thetag writer 410 may write tag information corresponding to the image on thedisplay tag 420. - The tag writing area is disposed on the screen of the
tag writer 410, and may be disposed opposite a sensing area of thedisplay tag 420. The sensing area of thedisplay tag 420 is preferably identical to the tag writing area in size, but the sensing area of thedisplay tag 420 may be larger than the tag writing area of thetag writer 410. - The
display tag 100 ofFIG. 1 may be implemented using a general display apparatus rather than the display tag. According to an exemplary embodiment of the present invention, the display apparatus may include a display unit and a sensing unit. - If the sensing unit is disposed opposite a screen of an external display apparatus, the sensing unit captures an image displayed on an area corresponding to the display unit, and provides the display unit with the image. The display unit and the sensing unit of the display apparatus according to another exemplary embodiment of the present invention have functions similar to those of the
display unit 120 and thesensing unit 110 of thedisplay tag 100 illustrated inFIGS. 1 and 2 . However, the display apparatus does not operate as a display tag to communicate with a display writer and reader, and operates as an independent display apparatus. In this case, the display unit displays an image corresponding to the image captured by the sensing unit, and may be implemented as E-paper, which displays an image even when the power is turned off. The display apparatus may be a mobile phone, a portable multimedia player (PMP), or an electronic dictionary. The display apparatus may also be fabricated as a card which may be connected to a mobile phone. -
FIG. 5 is a flowchart illustrating a method for writing tag information of a display tag system according to an exemplary embodiment of the present invention, andFIGS. 6A and 6B are views provided to explain the method ofFIG. 5 . - Referring to
FIGS. 5 to 6C , atag writer 610 displays an image corresponding to tag information to be provided (S510). Specifically, thetag writer 610 may display a plurality ofmovie poster images 640 as shown inFIG. 6A . - If at least one of the
movie poster images 640 is selected, thetag writer 610 may display the selected image on a tag writing area of a screen (S520). Specifically, if a user selects a movie poster image “LOST” from the plurality ofmovie poster images 640, the selected movie poster image “LOST” is displayed on atag writing area 630 of thetag writer 610. - If the
display tag 620 having the display unit is disposed opposite thetag writing area 630, thedisplay tag 620 captures an image displayed on thetag writing area 630, and displays the captured image on the display unit, and thetag writer 610 writes tag information corresponding to the selected image on the display tag 620 (S530). - If the
display tag 620 is disposed opposite thetag writing area 630 of thetag writer 610 as shown inFIG. 6B , thedisplay tag 620 captures an image displayed on thetag writing area 630, and displays the captured image on the display unit as shown inFIG. 6C . In this case, thetag writer 610 may write the tag information corresponding to the selected image on thedisplay tag 620. -
FIGS. 7A and 7B are views provided to explain the method ofFIG. 5 .FIGS. 7A and 7B illustrate another exemplary embodiment of operations S510 and S520 explained inFIG. 5 . - A
tag writer 700 ofFIG. 7A may display a plurality ofdisplay images 710, and a user may select acertain image 720 from the plurality ofdisplay images 710. A user drags the selectedimage 720, and drops theimage 720 onto atag writing area 730 using a mouse. The user may capture an image by disposing a display tag opposite the selectedimage 720 moved onto thetag writing area 730. - According to exemplary embodiments of the present invention, a display tag is provided to capture an image from an external source, and to display the captured image, so a user can view information regarding a tag. Therefore, user convenience is enhanced.
- The foregoing exemplary embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. Also, the description of the exemplary embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (13)
1. A method for controlling a display device having a tag writing area, comprising:
receiving a user selection of at least one image among displayed images on the display device;
detecting whether a mobile device contacts the tag writing area of the display device ; and
transmitting information corresponding to the selected image,
wherein the tag writing area is at least one part of the display device.
2. The method of claim 1 , wherein the display device comprises a tag information storage unit which stores tag information regarding the selected image,
wherein the transmitting comprises, when the mobile device is detected to be in contact with the tag writing area of the display device, transmitting information corresponding to the selected image which is pre-stored in the tag information storage unit to the mobile device.
3. The method of claim 1 , wherein the transmitting comprises, when the mobile device is detected to be in contact with the tag writing area of the display device, transmitting the selected image along with the information.
4. A method for controlling a display device having a tag writing area, comprising:
displaying a plurality of images on a portion of the display device;
receiving user selection of at least one image among the plurality of images; and
displaying a image corresponding to the selected image on the tag writing area of the display device,
wherein the portion of the display device is different from the tag writing area.
5. The method of claim 4 , further comprising:
when an image displayed on the tag writing area is captured by a mobile device, transmitting information corresponding to the captured image to the mobile device.
6. A method for controlling a mobile device, comprising:
detecting whether the mobile device is disposed opposite a tag writing area of a display device;
automatically capturing at least one image displayed on the tag writing area corresponding to the detection; and
displaying the captured image on the mobile device.
7. The method of claim 6 , further comprising,
receiving information corresponding to the captured image from the display device.
8. The method of claim 6 , wherein the displaying comprises the captured image on an opposite side of one side of the mobile device which is disposed opposite to the tag writing area.
9. The method of claim 6 , wherein the mobile device comprises a sensing unit which captures an image on one side of the mobile device and comprises a display unit which displays the captured image on an opposite side of one side of the mobile device having the sensing unit.
10. A method for transmitting tag information of a display device, comprising:
receiving a user selection of at least one image among displayed images;
receiving user command for moving the selected image from a original display position to a tag writing area;
moving the selected image from the original display position to the tag writing area; and
transmitting tag information corresponding to the selected image if the selected image is moved,
wherein the user command is drag and drop interaction.
11. The method of claim 10 , wherein the transmitting comprises, when a mobile device is disposed opposite to the tag writing area of the display device, transmitting the tag information to the mobile device.
12. The method of claim 10 , wherein the display apparatus comprises a tag information storage unit which stores tag information regarding the selected image,
wherein the transmitting comprises, when a mobile device is disposed opposite to the tag writing area of the display device, transmitting tag information corresponding to a selected image which is pre-stored in the tag information storage unit to the mobile device.
13. The method of claim 10 , wherein the transmitting comprises, when a mobile device is disposed opposite to the tag writing area of the display device, transmitting the selected image along with the information.
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US14/046,369 US20140033114A1 (en) | 2008-05-27 | 2013-10-04 | Display tag, display tag system having display tag, and method for writing display tag information |
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US13/775,948 US20130212518A1 (en) | 2008-05-27 | 2013-02-25 | Display tag, display tag system having display tag, and method for writing display tag information |
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US14/046,369 Abandoned US20140033114A1 (en) | 2008-05-27 | 2013-10-04 | Display tag, display tag system having display tag, and method for writing display tag information |
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USD766914S1 (en) * | 2013-08-16 | 2016-09-20 | Yandex Europe Ag | Display screen with graphical user interface having an image search engine results page |
US20150222741A1 (en) * | 2014-02-05 | 2015-08-06 | Lg Electronics Inc. | Mobile terminal and method of controlling therefor |
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US20140033114A1 (en) | 2014-01-30 |
US8400280B2 (en) | 2013-03-19 |
CN101593267A (en) | 2009-12-02 |
KR20090123259A (en) | 2009-12-02 |
US20090295549A1 (en) | 2009-12-03 |
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