CN101605215B - Digital photo frame integrated with wireless receiving module - Google Patents

Digital photo frame integrated with wireless receiving module Download PDF

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Publication number
CN101605215B
CN101605215B CN2008100677810A CN200810067781A CN101605215B CN 101605215 B CN101605215 B CN 101605215B CN 2008100677810 A CN2008100677810 A CN 2008100677810A CN 200810067781 A CN200810067781 A CN 200810067781A CN 101605215 B CN101605215 B CN 101605215B
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audio
video
signal
processing unit
wireless
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CN2008100677810A
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CN101605215A (en
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赵波
刘文兴
吴学祥
龚良昀
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Nationz Technologies Inc
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Nationz Technologies Inc
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Abstract

The invention relates to a digital photo frame integrated with a wireless receiving module, comprising a power supply unit (201), a display screen (203), an internal or external storage unit (202), an audio/video/image encoding and decoding processor (205), a loudspeaker (209), a display processing unit (204), a sound processing unit (208), a wireless audio/video receiving demodulation module (206) and an operational order processing unit (207), wherein the operational order processing unit (207) processes interactive orders of users; and the wireless audio/video receiving demodulation module (206) receives an audio/video signal demodulated on a radio-frequency carrier wave, carries out demodulation processing, then separates the demodulated audio/video signal into an audio signal and a video signal which are independent and synchronous and respectively transmits the audio signal and the video signal to the loudspeaker (209) and the display screen (203) to be output. The method not only retains original functions of the digital photo frame but also realizes the reception and the display of the wireless audio/video signal.

Description

The integrated DPF of wireless receiving module
Technical field
The present invention relates to the device that file reappears, particularly relate to the device of average information storage, related in particular to the DPF of wireless receiving module integrated.
Background technology
The DPF of prior art is mainly handled the data file by its inner audio frequency and video/image coding and decoding processor, as shown in Figure 2, audio frequency and video/image coding and decoding processor reads files such as the audio frequency and video that are stored in the built-in or external memory cell or picture, through after audio frequency and video/image coding and decoding processor processing, carry out the separation of audio/video signal, the image that separation is obtained exports on the display screen, and the voice signal that separation is obtained exports loud speaker to.
The DPF of prior art can only show to be stored in the picture in self or the external memory device and to play sound, but can't handle from the audio/video signal of outside input that for example traditional AV signal is restricted its range of application.
The present invention increases wireless receiving module on the basis of existing DPF, by receiving from the wireless audio/video signal of wireless transmission terminal (camera that for example possesses the wireless transmission function) emission, realize monitoring in real time.
The DPF of above-mentioned prior art has the following disadvantages: can only handle the photo frame stored or from the audio frequency and video and the picture file of peripheral storage device input, the displaying contents source is single, range of application is restricted.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of integrated DPF of wireless receiving module.
The present invention is under the situation that keeps prior art DPF original function, increased wireless receiving module, make DPF possess the ability of wireless receiving audio/video signal, far-end possesses the audio/video signal that the pickup camera of wireless audio/video emission function obtains self and carries out modulate emission, DPF of the present invention can utilize the audio/video wireless signal that wireless receiving module receives and demodulation is launched from pickup camera of himself, by after the demodulation audio/video signal input loud speaker sounding and input panel being shown.
The present invention solve the technical problem can be by realizing by the following technical solutions: a kind of integrated DPF of wireless receiving module, comprise power subsystem, display screen, built-in or external memory cell, audio frequency and video/image coding and decoding processor and loud speaker, the data that described audio frequency and video/image coding and decoding processor will be stored in the built-in or external memory cell are carried out decoding processing, especially, also comprise display processing unit, sound processing unit, wireless audio/video receiving demodulation module and operation command processor; Described operation command processor is used for the interactive instruction of process user input; Described wireless audio/video receiving demodulation module receives and is modulated at the audio/video signal wave on the radio-frequency carrier and carries out demodulation process, and then the audio/video Signal Separation after the demodulation gone out separate synchronous again Voice ﹠ Video signal, and isolated audio signal is sent to sound processing unit, export loud speaker then to, isolated vision signal is sent to display processing unit, exports display screen at last to and show.
Described carrier wave comprises and is operated in 433MHz, 900MHz, 2.4GHz, 5.8GHz, and the rf wave in superfrequency UHF, very high frequency(VHF) VHF and the hyperfrequency SHF frequency range.
Described wireless audio/video receiving demodulation module can receive and handle and be modulated at wireless signal on the different frequency carrier wave, when handling the carrier signal of different frequency, need use the different chips that possesses the respective handling ability instead, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that audio/video is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
Described operation command processor adopts MCU chip able to programme to realize, is used for user's interactive instruction is converted into the instruction code of internal system.
Display processing unit can be handled image or the vision signal that sends from audio frequency and video/image coding and decoding processor and wireless audio/video receiving demodulation module simultaneously, and the instruction code that sends according to operation command processor to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal.
Sound processing unit can be handled sound or the audio signal that sends from audio frequency and video/image coding and decoding processor and wireless audio/video receiving demodulation module simultaneously, and the instruction code that sends according to operation command processor to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
Described display processing unit adopts the complex programmable chip, by its programming is converted the analog video signal of input to digital video signal, so that the input digit display screen shows.
Sound processing unit adopts the complex programmable chip, by its programming is converted the digital audio and video signals of input to simulated audio signal.
Described display processing unit sends image or the vision signal of handling well to display screen by display interface, described display interface and display screen signal input interface coupling.
Compare with prior art, the beneficial effect of technical solution of the present invention is:
1, by on DPF, increasing wireless receiving module, not only keeps the original function of this DPF, and can realize the reception and the demonstration of wireless audio/video signal;
2, by can be conveniently by key control to the audio/video signal that receives play, record, operation such as modification, increase the recreational of DPF.
Description of drawings
Fig. 1 be the present invention integrated the DPF of wireless receiving module use schematic diagram;
Fig. 2 is the electric principle logic diagram of prior art DPF;
Fig. 3 is the electric principle logic diagram of DPF of the present invention.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in each accompanying drawing.
The present invention's the integrated DPF of wireless receiving module, as shown in Figure 3, comprise power subsystem 201, display screen 203, built-in or external memory cell 202, audio frequency and video/image coding and decoding processor 205 and loud speaker 209, the data that described audio frequency and video/image coding and decoding processor 205 will be stored in the built-in or external memory cell 202 are carried out decoding processing, especially, also comprise display processing unit 204, sound processing unit 208, wireless audio/video receiving demodulation module 206 and operation command processor 207; Described operation command processor 207 is used for the interactive instruction of process user input; Described wireless audio/video receiving demodulation module 206 receives and is modulated at the audio/video signal wave on the radio-frequency carrier and carries out demodulation process, and then the audio/video Signal Separation after the demodulation gone out separate and synchronous Voice ﹠ Video signal, and isolated audio signal is sent to sound processing unit 208, export loud speaker 209 then to, isolated vision signal is sent to display processing unit 204, exports display screen 203 at last to and show.
As shown in Figure 3, described power subsystem 201 provides voltage-stabilizing power supply for each functional unit of DPF.
Described built-in or external memory cell 202 can adopt Flash flush memory device, hard disk etc., be used for memory image, sound or audio/video file, this memory cell 202 can be placed in the DPF, also can be connected to described DPF from the outside by interface.
Described audio frequency and video/image coding and decoding processor 205 adopts general on the market DSP, MCU or professional audio/video encoding/decoding processor, chips such as image coding and decoding processor, these chips all possess audio/video file, the coding of formatted files such as picture file, decoding function, by these chips self or peripheral companion chip, can isolate the separate but synchronous Voice ﹠ Video signal of wanting required for the present invention, by control mode programming to described audio frequency and video/image coding and decoding processor 205, can realize a lot of additional functions, comprise alarm clock, regularly and to the independent audio-video signal that wireless audio/video receiving demodulation module 206 obtains record processing such as preservation.
As shown in Figure 2, described operation command processor 207 adopts MCU chip able to programme, be used for user's interactive instruction is converted into the manipulation internal instruction code, described interactive instruction, be meant that the external key of user by DPF requires DPF to carry out a certain or carry out the order of multinomial function simultaneously, for example DPF displaying contents source is selected, content play, video recording etc., the built-in command code is meant that the user interactions instruction is become executable program code by the DPF internal conversion, " displaying contents source select " function command for example, its corresponding code can be decided to be " 001 ", could be by each correlation unit identification of system through the program converted code.
Operation command processor 207 is the Man Machine Interface unit between DPF and the user, and this unit comprises man-machine interactive operation instruments such as operation push-button and plucking number sign switch, is used to receive user instruction, becomes internal manipulation instruction through this cell translation.When operating, the user interactions instruction can produce by button, also can produce by other man-machine interface unit parts such as touch-screens, when the user interactions instruction produced by button, the interactive instruction that is produced can be converted into built-in command code of the present invention by described operation command processor 207; If the user interactions instruction is to produce by touch-screen and other people machine interface unit parts, the interactive instruction that is produced can change into the built-in command code by the program of described operation command processor 207 inside so.
Accepting user and DPF when operation command processor 207 by button carries out when mutual, can be directly convert the interactive instruction of button to built-in command generation by this operation command processor 207, also can pass through general MCU chip, programmable chips such as (for example 8051 chips) assists the peripheral operation instruction transformation is become the built-in command code.Whether select general MCU chip, should decide on function and designing requirement that DPF need be realized.
When operation command processor 207 is undertaken when mutual by touch-screen and other Man Machine Interface and user, owing to need the function of processing more, this unit generally needs by general MCU chip (for example 8051 chips) or directly relies on the assistance of audio frequency and video/image coding and decoding processor 205 to realize, realizes the peripheral operation instruction transformation is become the built-in command code by they are programmed.
Described carrier wave comprises and is operated in 433MHz, 900MHz, 2.4GHz, 5.8GHz, and the rf wave in superfrequency UHF, very high frequency(VHF) VHF and the hyperfrequency SHF frequency range.
Described wireless audio/video receiving demodulation module 206 can receive and handle the wireless signal that is modulated on the different frequency carrier wave, when handling the carrier signal of different frequency, need use the different chips that possesses the respective handling ability instead, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that audio/video is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
Continuous development in view of the rf modulations demodulation techniques, modulation standard and agreement have had many kinds, modulate used carrier frequency and also are distributed in different band limits, every kind of modulation technique, there is corresponding with it demodulation mode in the capital, and the chip that is adopted also can be different.For example, when the far-end camera adopts the FM modulation technique emission of 2.4GHz band limits with its sound that captures, picture signal, can adopt the Zi325X family chip of ZTEIC company, and the wireless audio/video receiving demodulation module 206 in the described DPF just can to adopt ZTEIC company model accordingly be the chip of Zi2188, this chip can independently be finished receiving demodulation work, demodulation obtains independent synchronous analog audio-video signal, this chip also can be under common MCU chip programming cooperates, finish greater functionality, such as frequency setting etc.
As shown in Figure 3, the used operation command processor 207 of the present invention adopts MCU chip able to programme to realize, is used for user's coreference order is converted into the instruction code of internal system.
Display processing unit 204 can be handled image or the vision signal that sends from audio frequency and video/image coding and decoding processor 205 and wireless audio/video receiving demodulation module simultaneously, and the instruction code that sends according to behaviour's operation command processor 207 to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal.
Sound processing unit 208 can be handled sound or the audio signal that sends from audio frequency and video/image coding and decoding processor 205 and wireless audio/video receiving demodulation module 206 simultaneously, and the instruction code that sends according to operation command processor 207 to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
Described display processing unit 204 adopts the complex programmable chip, and by its programming is converted the analog video signal of input to digital video signal, input digit display screen 203 shows then.
Sound processing unit 208 adopts the complex programmable chip, by its programming is converted the digital audio and video signals of input to simulated audio signal.
Described display processing unit 204 sends image or the vision signal of handling well to display screen 203 by display interface, described display interface and display screen 203 signal input interfaces coupling.
Display processing unit 204 is used to handle image or the vision signal that sends from audio frequency and video/image coding and decoding processor 205 or audio/video signal processing unit 206, and the built-in command code that sends according to operation command processor 207 to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal.
Sound processing unit 208 is used to handle sound or the audio signal that sends from audio frequency and video/image coding and decoding processor 205 or wireless audio/video receiving demodulation module 206, and the built-in command code that sends according to operation command processor 207 to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
Described display processing unit 204 adopts the complex programmable chip, by it is programmed the analog video signal of input is converted to digital signal, and the digital video signal after the conversion is handled.
Sound processing unit 208 adopts the complex programmable chip, by it is programmed the digital audio and video signals of input is converted to simulated audio signal, and the simulated audio signal after the conversion is handled.
As shown in Figure 2, display processing unit 204 and sound processing unit 208 are behind the built-in command code that reception operation command processor 207 sends over, audio-video signal to audio frequency and video/image coding and decoding processor 205 or 206 outputs of wireless audio/video receiving demodulation module is handled by instruction code, can realize many functions such as switching, mixing, these functions all can realize by the programming to display processing unit 204 and sound processing unit 208.
Display processing unit 204 is done different processing according to the difference of received video signal type to signal:
If 1 signal that receives is an analog video signal, convert thereof into digital video signal, for example, what wireless audio/video receiving demodulation module 206 sent is analog video signal, so by chip SAA7113, can directly convert thereof into digital video signal, obtain 8 displays content data and control signal;
If 2 signals that receive are digital video signals, so just need not to carry out again digitized processing, for example the signal itself that audio frequency and video/image coding and decoding processor 205 sends is exactly a digital signal, so just need not this signal is carried out conversion process.
Display processing unit 204 is after finishing above-mentioned digitlization conversion work, according to user's request the signal after changing is operated, if only need simply do image switching, need not the complex programmable chip so, as long as the simple circuit of selecting just can be realized, if the user needs sophisticated functions, show that such as split screen (two groups of signals take display screen respectively), stack show that (one group of signal as a setting, another group is shown in above it), then can select high-speed dsp or special image editing and processing device, realize by programming.
Sound processing unit 208 is done different processing according to the difference of received audio signal type to signal:
If 1 signal that receives is a digital audio and video signals, then the audio signal that wireless audio/video receiving demodulation module 206 is sent changes into simulated audio signal, when handling the audio signal of different-format, needs to select different chips to realize;
If 2 signals that receive are simulated audio signals, so just need not again it to be done any conversion.
Simulated audio signal after the conversion is operated by user instruction, if being simple sound, user instruction switches, need not the complex programmable chip so, only need the simple circuit of selecting just can realize, otherwise just need by being programmed, it realize with high-speed dsp or dedicated voice editing and processing device.
Described display processing unit 204 sends image or the vision signal of handling well to display screen 203 by display interface, described display interface and display screen 203 signal input interfaces coupling.
Described display screen 203 can adopt general TFT LCDs or other display device, also can use touch-screen, because display screen 203 kinds and interface are various, the definition of no unified interface, therefore when selecting different display screens 203, require display processing unit 204 and display screen 203 couplings, general as adopting, use simple 8 bit digital FTF display screens.
Described audio frequency and video/image coding and decoding processor 205 adopts the complex programmable chip, records, preserves processing by the independent audio-video signal that obtains after its programming is handled wireless audio/video receiving demodulation module 206.
Fig. 1 for the present invention integrated the practical application schematic diagram of DPF of wireless receiving module, described DPF receives the wireless audio/video signal that launches from the camera of far-end band wireless transmission function, and carry out demodulation process, then the signal after the demodulation is carried out the audio/video Signal Separation by wireless audio/video receiving demodulation module 206, finally on display screen, show, thereby realization is to the wireless monitor of far-end audio/video that camera is caught.
Above-mentioned implementation procedure is a preferential implementation procedure of the present invention, and common variation and replacement that those skilled in the art carries out on basis of the present invention are included within protection scope of the present invention.

Claims (7)

1. integrated DPF of wireless receiving module, comprise power subsystem (201), display screen (203), built-in or external memory cell (202), audio frequency and video/image coding and decoding processor (205) and loud speaker (209), the data that described audio frequency and video/image coding and decoding processor (205) will be stored in the built-in or external memory cell (202) are carried out decoding processing, it is characterized in that:
Also comprise display processing unit (204), sound processing unit (208), wireless audio/video receiving demodulation module (206) and operation command processor (207); Described operation command processor (207) is used for the interactive instruction of process user input; Described wireless audio/video receiving demodulation module (206) receives and is modulated at the audio/video signal wave on the radio-frequency carrier and carries out demodulation process, and then the audio/video Signal Separation after the demodulation gone out separate and synchronous Voice ﹠ Video signal, and isolated audio signal is sent to sound processing unit (208), export loud speaker (209) then to, isolated vision signal is sent to display processing unit (204), exports display screen (203) at last to and show;
Described display processing unit (204) can be handled image or the vision signal that sends from audio frequency and video/image coding and decoding processor (205) and wireless audio/video receiving demodulation module (206) simultaneously, and the instruction code that sends according to operation command processor (207) to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal;
Described sound processing unit (208) can be handled sound or the audio signal that sends from audio frequency and video/image coding and decoding processor (205) and wireless audio/video receiving demodulation module (206) simultaneously, and the instruction code that sends according to operation command processor (207) to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
2. the integrated DPF of wireless receiving module as claimed in claim 1 is characterized in that:
Described carrier wave comprises and is operated in 433MHz, 900MHz, 2.4GHz, 5.8GHz, and the rf wave in superfrequency UHF, very high frequency(VHF) VHF and the hyperfrequency SHF frequency range.
3. the integrated DPF of wireless receiving module as claimed in claim 1 is characterized in that:
Described wireless audio/video receiving demodulation module (206) can receive and handle and be modulated at wireless signal on the different frequency carrier wave, when handling the carrier signal of different frequency, need use the different chips that possesses the respective handling ability instead, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that audio/video is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
4. the integrated DPF of wireless receiving module as claimed in claim 1 is characterized in that:
Described operation command processor (207) adopts MCU chip able to programme to realize, is used for user's interactive instruction is converted into the instruction code of internal system.
5. as claim 1 or the 3 described integrated DPFs of wireless receiving module, it is characterized in that:
Described display processing unit (204) adopts the complex programmable chip, by its programming is converted the analog video signal of input to digital video signal, exports digital display screen then to and shows.
6. as claim 1 or the 4 described integrated DPFs of wireless receiving module, it is characterized in that:
Sound processing unit (208) adopts the complex programmable chip, by its programming is converted the digital audio and video signals of input to simulated audio signal.
7. the integrated DPF of wireless receiving module as claimed in claim 1 is characterized in that:
Described display processing unit (204) sends image or the vision signal of handling well to display screen (203) by display interface, described display interface and display screen (203) signal input interface coupling.
CN2008100677810A 2008-06-11 2008-06-11 Digital photo frame integrated with wireless receiving module Expired - Fee Related CN101605215B (en)

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Publication number Priority date Publication date Assignee Title
CN103684499A (en) * 2012-09-21 2014-03-26 苏州宝时得电动工具有限公司 Audio data transmission method, and signal converter and stereo equipment using the same
CN110696588A (en) * 2019-10-22 2020-01-17 杭州新都奥兰汽车空调有限公司 Bus type air conditioner control system of engineering machinery vehicle
CN113114298B (en) * 2021-03-31 2022-07-12 德氪微电子(深圳)有限公司 Display device adopting millimeter wave communication

Citations (2)

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Publication number Priority date Publication date Assignee Title
CN101022528A (en) * 2006-02-13 2007-08-22 三星电子株式会社 Camera-equipped portable terminal and photograph transmission method using the same
CN201018604Y (en) * 2007-04-02 2008-02-06 邱建军 Wireless multifunctional digital photo frame

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101022528A (en) * 2006-02-13 2007-08-22 三星电子株式会社 Camera-equipped portable terminal and photograph transmission method using the same
CN201018604Y (en) * 2007-04-02 2008-02-06 邱建军 Wireless multifunctional digital photo frame

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