CN1517744A

CN1517744A - Device and method for generating virtual keyboard/display

Info

Publication number: CN1517744A
Application number: CNA031014801A
Authority: CN
Inventors: 刘贞豪; 陈俊融
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2003-01-17
Filing date: 2003-01-17
Publication date: 2004-08-04
Anticipated expiration: 2023-01-17
Also published as: CN1258108C

Abstract

A device and method for generating virtual keyboard/display is disclosed. Said device is composed of the first and the second laser emitters and a laser receiver. Its method includes such steps as using the first laser emitter to scan on plane to generate a virtual keyboard/display pattern, inputting on the virtual keyboard by user while using the second laser emitter to generate the first and the second reflected beams, and receiving them by laser receiver to obtain the signal associated with user input.

Description

Produce the device and method of dummy keyboard/display

Technical field

The present invention relates to a kind of device and method that produces dummy keyboard/display, particularly a kind of device and method that produces dummy keyboard/display by the face scanning and the line sweep interworking of laser.

Background technology

Gently, thin, short, little, low noise and to be easy to carry about with one be the development trend of electronic product always, yet for fear of considering on visual restriction and the ergonomics size, the space that input media and display equipment are desired to dwindle is very narrow, but most users' hobbies of Chang Yinwei on use habit and wish to have bigger input media and bigger display device, though alternative input media is also not within minority, as handwriting pad, voice, light pen etc., yet for the vast use group that custom is used the keyboard input, utilize the custom of keyboard input still to be difficult to be replaced by alternate manner, therefore also there was the product of so-called dummy keyboard to occur afterwards, it is at the group of habitual keyboard, have noiselessness concurrently, do not take up space and portable advantage, its invention is to utilize digital little level crossing to show (Digtal micro mirror Display) technology, by face mode of delivery display keyboard and patterns of displays, it utilizes bottom two bundle laser and two receivers, in order to the catoptrical reflection angle of detecting finger, the detecting angle of comprehensive then two optical sensors is studied and judged the position of input keyboard, but its shortcoming then is because the receiver of two tool generating lasers and two tool photoinduction need expend more power supply, will not apply cost in long use.

Summary of the invention

In view of this, the present invention addresses the above problem to propose a kind of device and method that produces dummy keyboard/display, main purpose is: the pattern that produces a keypad/display by a visible laser beam and an invisible laser beam, and then Simutation keyboard/display carries out its function, simplifies this device that produces functional effect and saves the energy thereby reach.

For reaching above-mentioned purpose, the device of generation dummy keyboard/display provided by the present invention comprises: first generating laser, second generating laser and laser pickoff.

In addition, the present invention puies forward the method for generation dummy keyboard/display, comprise the following step: at first carry out the pattern that face scanning produces this keypad/display by first generating laser, and second generating laser of arranging in pairs or groups again, when it uses dummy keyboard to import in the user, produce first folded light beam and second folded light beam simultaneously, at last by laser pickoff, when the user utilizes dummy keyboard to import, receive this first folded light beam and this second folded light beam, thereby obtain importing corresponding signal with the user.

Description of drawings

Fig. 1 carries the vertical view of the device of generation dummy keyboard/display for the present invention;

Fig. 2 carries the side view of the device of generation dummy keyboard/display for the present invention;

Fig. 3 carries the invisible laser scanning synoptic diagram of the device of generation dummy keyboard/display for the present invention;

Fig. 4 carries the method flow diagram of generation dummy keyboard/display for the present invention;

Fig. 5 carries its routine analyzer process flow diagram in the method for generation dummy keyboard/display for the present invention.

Symbol description among the figure

101 scanning sensing apparatus

102 displays

103 laser scanning starting points

104 laser scanning terminating points

201 first generating lasers

The initial scanning position of 202 first laser

205 second generating lasers

206 invisible laser

207 invisible laser scanning starting points

208 invisible laser scanning terminating points

301 keyboards

302 sense position

402 second folded light beams

403 first folded light beams

404 first folded light beams

501 laser pickoffs

Step 100 is carried out face scanning by first generating laser, in scan period the light source switch by first generating laser switch and cause bright dark effect, thereby produce the pattern of keypad/display, and when user's finger places visible light laser scanning scope, produce first folded light beam

Step 200 is carried out line sweep by second generating laser, the mode of its scanning be parallel to the physical plane and with the physical plane a bit of distance of being separated by, the angular velocity of its line sweep is same as the line sweep angular velocity of first generating laser, thereby when the user utilizes keyboard to import, produce second folded light beam

Step 300 when the user utilizes keyboard to import, is received first folded light beam and second folded light beam, thereby is obtained importing corresponding signal with the user by routine analyzer by laser pickoff

Step 310 is separated first folded light beam and second folded light beam

Step 320 is according to a coordinate of first folded light beam and second folded light beam decision user input

Step 330 is according to the signal of coordinate decision user input

Step 340 input signal is to computing machine

Embodiment

The present invention is a kind of device and method that produces dummy keyboard/display.

Please consult Fig. 1, Fig. 2 and Fig. 3 simultaneously, the present invention is a kind of scanning sensing apparatus 101, double simultaneously all scanning, sensing function, but be positioned on the physical plane of display color, produce keyboard 301/ display, 102 patterns and can utilize this keyboard 301 to reach the action of input on the physical plane, its scanning sensing apparatus 101 comprises:

(1) first generating laser 201, the bright dark effect of light source switch switching generation in scan period by this first generating laser 201, and its scan mode is that laser beam is finished line sweep by the initial scanning position 202 of scanning sensing apparatus 101 belows, first laser by laser scanning starting point 103 to laser scanning terminating point 104, be back to left end starting point 103 distance of (to leave operator's direction) luminous point of displacement forward again, then carry out identical line sweep program, continue near the scanning sensing apparatus 101, on the physical plane, produce the pattern of this keyboard 301/ display 102 with the above speed of 30 pictures of per second (containing display 102 and keyboard 301), and when the user uses keyboard 301 to import, produce first folded light beam 403,404;

(2) second generating lasers 205, be parallel to the invisible laser beam 206 that scans and produce in the physical plane and the physical plane a bit of distance (between 0.3 centimetre to 0.8 centimetre) of being separated by in the mode of line sweep, sweep limit is between invisible laser scanning starting point 207 and 208 of invisible laser scanning terminating points (with reference to figure 4), the angular velocity of its line sweep is same as the line sweep angular velocity of first generating laser, when the user utilizes keyboard 301 to import, produce second folded light beam 402 by the reflection of its finger; And

(3) laser pickoff 501, when the user utilizes keyboard 301 to import, receive this first folded light beam 403,404 and second folded light beam 402, thereby obtain the signal of user's input.

Next please refer to Fig. 4, this figure has illustrated a kind of method that produces dummy keyboard/display, at first carry out face scanning by first generating laser, in scan period the light source switch by first generating laser switch and cause bright dark effect, thereby produce the pattern of keypad/display, and when the user uses keyboard to import, produce one first folded light beam 403,404 (steps 100), carry out line sweep by second generating laser then, the mode of its scanning be parallel to the physical plane and with the physical plane a bit of distance of being separated by, the angular velocity of its line sweep is same as the line sweep angular velocity of first generating laser, thereby when the user utilizes keyboard to import, that is the finger or other in order to the input material on sense position 302, can produce second folded light beam 402 (step 200), at last by laser pickoff 501, when the user utilizes keyboard to import, receive this first folded light beam 403,404 and this second folded light beam 402, thus obtain importing corresponding signal (step 300) and input computing machine by routine analyzer with the user.

Please refer to Fig. 5 at last, it has illustrated the thin portion flow process of routine analyzer: when the finger or other user with the input medium (as the finger, pen) is displaced downwardly to sense position shown in Figure 3 302, can produce first folded light beam 403,404 and second folded light beam 402, after receiving, laser pickoff 501 promptly separates first folded light beam 403,404 and second folded light beam 402 (step 310), it passes through circuit design, according to first folded light beam 403, the coordinate (step 320) of 404 and second folded light beam, 402 decision user inputs, calculate the mistiming of invisible laser level scan start point position 207 and terminating point position 208, again with Fig. 1 in first folded light beam 403, the mistiming of the initial analyzing spot of 404 distances 103 positions, front and back treated device of two mistimings and predefined data are relatively, can determine the button coordinate imported why, determine the signal (step 330) of user's input again according to coordinate, thereby reach the result of signal analysis, input signal is finished the action of input to computing machine again; And visible folded light beam 404 is not assert this input inefficacy because of detecting 206 reflected signal (second folded light beam 402) among Fig. 3.

The present invention produces dummy keyboard/display equipment and method is noiselessness of generation, does not take up space and portable virtual input device and display, the use habit of fully catering to the keyboard user, and needn't worry that the dirt sand drift on the keyboard is long-pending.

Though the present invention discloses as above with aforesaid preferred embodiment; right its is not in order to limit the present invention; former any this operator that is familiar with; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, thus protection scope of the present invention when with the scope of claims the person of being defined be as the criterion.

Claims

1. device that produces dummy keyboard/display, but be positioned on the physical plane of display color, thus on this physical plane, produce a keypad/display pattern and utilize this keyboard to finish the action of input, it is characterized in that this device comprises:

One first generating laser, in order to emission visible laser bundle, in scan period the light source switch by this first generating laser switch and cause bright dark effect, thereby produce the pattern of this keypad/display by face scanning, and when the user uses this keyboard to import, produce one first folded light beam;

One second generating laser, in order to launch invisible laser beam, with the mode of line sweep be parallel to that this physical plane is scanned and with this physical plane distance of being separated by, the angular velocity of its line sweep is same as the line sweep angular velocity of this first generating laser, thereby when the user utilizes this keyboard to import, produce one second folded light beam; And

One laser pickoff when the user utilizes this keyboard to import, receives this first folded light beam and this second folded light beam, thereby obtains the signal of user's input.

2. the device of generation dummy keyboard/display as claimed in claim 1 is characterized in that, more comprises in this device:

Two laser diodes are in order to launch identical but the light beam that wavelength is different of twice direction simultaneously;

The polygonal mirror of one first rotation is in order to reflect this light beam and to make this light beam produce the one scan angle;

One spectroscope, in order to allow this light beam produce a upper end light beam and a lower end light beam by reflection and transmission respectively, this lower end light beam carries out a horizontal scanning by this first polygonal mirror and this spectroscope; And

One second polygonal rotating mirror produces one side scanning in order to reflect this upper end light beam.

3. the device of generation dummy keyboard/display as claimed in claim 1 is characterized in that, the scope of this distance is between 0.3 centimetre to 0.8 centimetre.

4. the device of generation dummy keyboard/display as claimed in claim 1, it is characterized in that, this first generating laser, also can be in order to launch invisible laser beam, thereby produce the pattern of this keypad/display by face scanning, its user can see the image that is produced by an optical filter, and when the user uses this keyboard to import, produces first folded light beam of an invisible light.

5. method that produces dummy keyboard/display in order to produce a keypad/display pattern and to utilize this keyboard to finish the action of input, is characterized in that this method includes the following step:

Carry out face scanning by one first generating laser, in scan period the light source switch by this first generating laser switch and cause bright dark effect, in order to producing the pattern of this keypad/display, and when the user uses this keyboard to import, produce one first folded light beam;

Carry out line sweep by one second generating laser, the mode of its scanning be parallel to this physical plane and with this physical plane distance of being separated by, the angular velocity of its line sweep is same as the line sweep angular velocity of this first generating laser, thereby when the user utilizes this keyboard to import, produce one second folded light beam; And

By a laser pickoff, when the user utilizes this keyboard to import, receive this first folded light beam and this second folded light beam, thereby obtain importing corresponding signal with the user by a routine analyzer.

6. the method for generation dummy keyboard/display as claimed in claim 5 is characterized in that, this routine analyzer comprises rapid down:

Separate this first folded light beam and this second folded light beam;

Coordinate according to this first folded light beam and this second folded light beam decision user input;

Signal according to this coordinate decision user input; And

Import this signal to computing machine.