JPS62188000A - Speech apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication device capable of transmitting information regarding characters, graphics, etc.

[Conventional technology]

Since conventional communication devices such as telephones transmit and receive only voice information, it is difficult for the other party to accurately and quickly understand the shape of an object, directions, etc.

Therefore, recently, a telephone has been proposed in which a small facsimile is built into the telephone.

[Problem that the invention seeks to solve]

However, this direct-talk machine with a built-in facsimile requires mechanical elements such as a recording paper transport mechanism, so it has the disadvantage of being complicated and expensive, and it also has the inconvenience of having to replenish the recording paper in a timely manner. .

[Means for solving problems]

The present invention provides a tablet-type input means for inputting information such as characters and figures, and outputs the above-mentioned information inputted by the input means to a communication line, and also outputs information such as letters and figures transmitted to the line. and means for displaying on the input surface of the tablet type input means.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of a telephone communication device according to the present invention.

This embodiment includes a tablet section A and a signal processing section B.

Tablet part A includes a tablet board 100 and a light pen 2.
00, and their structure is as follows.

That is, the tablet board 100 has a structure in which an optical filter 120 is superimposed on a two-dimensional semiconductor optical position detector (PSD) 110, and a flat display element 130 is further superposed on this filter 120.

In this embodiment, a structure shown in FIG. 2 is used as the optical position detector 110.

In the semiconductor optical position detector 110 shown in the figure, a resistive layer 112 made of a conductive film is formed on a substrate 111 made of glass or the like by a sputtering method, a vacuum evaporation method, or the like. A photoelectric conversion layer 113 made of an amorphous semiconductor is formed on the top surface of this resistance layer 112, and a resistance layer 114 made of a transparent conductive film is further formed on the top surface of the layer 113.
is formed by the same method as the resistance layer 112 described above. Note that the resistance layers 112 and 114 are formed of, for example, ITO, and the film thickness thereof is set to, for example, about 1000X.

The photoelectric conversion layer 113, as shown in FIG. )113
For example, amorphous silicon is used as the amorphous semiconductor constituting each layer.

The p, i, and n layers constituting this photoelectric conversion layer 113 are formed by glow discharge decomposition CVD (cbsmlcal vapor decomposition).
In this example, the film thicknesses dp, dl and dn
are respectively ap=ioo~300X, di#4000
~6000X and ctn #300~500X.

A pair of rod-shaped Xs are provided at both ends of the resistance layer 112.
Directional current collecting electrodes 115 and 116 are arranged to face each other, and similarly, a pair of Y direction current collecting electrodes 117 are provided at both ends of the resistor J4114.
, 118 are arranged facing each other. The peaks 4L of these current collecting electrodes 115 to 118 are connected to the currents 11-p and 11Q, respectively, which are connected to the current collecting electrodes 115-118. In addition,
As the material for the electrodes 115 to 118, for example, aluminum or an aluminum alloy is used.

This semiconductor optical position detector 110 operates as follows. That is, as shown in FIGS. 4(a), (b), and (c), the light beam A is directed to the semiconductor optical position detector 110.
When incident, the light beam reaches the photoelectric conversion layer 113 through the transparent resistive layer 114, and a photogenerated current is generated at the incident position P due to the photovoltaic action of the layer 113. At this time, in the resistance layer 112, the incident position P and the electrode 115
．． The current is divided by the resistance "xl" x2 between the resistance layer 116 and the resistance layer 114 between the position
Since the current is divided by the resistors rY1 and rY2 between electrodes 115 and 116, a divided current X11, from electrodes 115 and 116, and a divided current IY from 117 and 118.

■Y2 are each taken out.

In addition, in the figure, L indicates the full scale (for example, 8-) of the detection area in this optical position detector 110.

This semiconductor optical position detector 110 using an amorphous semiconductor for the photoelectric conversion layer 103 has a large PJ (for example, 100H x 100 r
Since it has the advantage of being able to be formed at rtm), it is extremely effective as an optical position detector applied to the tablet board 100.

Note that if the area of the tablet board 1000 is small, an optical position detector made of the above-mentioned single crystal silicon can also be applied.

The optical filter 120 is provided for the purpose of removing disturbance light, and is made of, for example, a red acrylic plate or a glass plate.

As the flat panel display element 130, a matrix liquid crystal display element is used in this embodiment.

Since this liquid crystal display element has translucency, the light projected from the light pen 200 shown in FIG. 1 can reach the semiconductor optical position detector 110. In addition to liquid crystal display elements, matrix electroluminescent displays (ELP) and matrix plasma displays (
FDP), matrix hot cathode ray display (VE
D), electrochromic display (ECD)
), etc. can be applied. - As shown in FIG. 5, the light pen 200 has an opening 202 at the tip of its pen shaft 201, and a light emitting element 203 such as an LED is disposed close to this opening.

Further, a push button switch 204 is provided in the middle of the pen shaft 201 in such a manner that a push button 204a projects outward from the pen shaft. When the push button 204m is pressed, the push button switch 204 contacts the contacts 204b and 204e and is closed, thereby energizing the light emitting element 203.

The signal processing section B includes a position detection circuit 310, a display element drive circuit 340, a memory 350 . CPU360 and
It consists of a repeating signal processing circuit 370.

The operation of this embodiment will be described below with reference to FIG. 6, which shows an example of the configuration of the position detection circuit 310.

The position detection circuit 310 includes an oscillator 311, and the output of this oscillator is current-amplified by a current amplifier 312, and then
It is applied to the light emitting cord 203 via the push button switch 204 of the light pen 200.

Therefore, when the push button switch 204 is closed with the tip of the light pen 200 positioned on the top surface of the flat panel display element 130 as shown in FIG. 130, filter 120
The light enters the light-receiving surface of the detector 110 through the light beam.

As a result, as mentioned above, the divided current corresponds to the light incident position! Engineering 1 e Engineering X 2 t Air, and! Y2 is output from the optical position detector 110, and these currents are connected to current-voltage conversion circuits 313, 314, 315 and 31, respectively.
6 corresponds to the voltage signal XI.

X2. After being converted into Yl and Y2, each amplifier 3
17, 318, 319 and 320 to synchronous detection circuits 321, 322, 323 and 324.

The synchronous detection circuits 321 to 324 function to input the output of the oscillator 311 as a synchronizing signal and output only signals synchronized with this synchronizing signal.

Signal XI based on light from the light emitting cord 203.

X2. Yl and Y2 are synchronized with the output signal of the oscillator 301, and therefore each of the synchronous detection circuits 321
~324, only the signals Xi, X2°Yl and Y2 are detected and output. Although the optical filter 120 can attenuate ambient light such as illumination light from a fluorescent lamp, in the unlikely event that this ambient light
Even if the signal based on this signal reaches the light receiving surface of No. 10, it will be effectively blocked by the detection action of the synchronous detection circuits 321 to 324.

The ratio signal XI output from the synchronous detection circuit 321 is input to the subtracted input terminal of the subtraction circuit 325 and the input terminal of the addition circuit 326, and the signal X2 outputted from the synchronous detection circuit 322 is subtracted by the addition circuit 3250. The signal Y1 outputted from the synchronous detection circuit 323 to the input terminal and the addition input terminal of the subtraction circuit 326 is inputted to the subtracted input terminal of the subtraction circuit 327 and the augend input terminal of the addition circuit 328, and further to the synchronous detection circuit 324. The output ratio signal Y2 is connected to the subtraction input terminal of the subtraction circuit 327 and the addition circuit 32.
8 addition input terminals, respectively.

As a result, the subtraction circuit 325 and the addition circuit 326 output valley signals X1-X2 and X1+X2,
These are input to a division circuit 329. Also, subtraction circuit 3
27 and the adder circuit 328 output signals Y1-Y2 and Y1+Y2, which are input to the divider circuit 330.

From the division circuits 329 and 330, analog signals indicating the coordinates x, y'l of the light incident position are inputted alternately to the .phi.

Converted to DY. Then, the output signals Dx and DY of the l converter 332 are transferred to the C
Input to PU 360.

The memory 350 shown in FIG.
It has an address corresponding to each pixel of 0. This address is the CPU 360K and the above signal D.
The signal ``'1'' is written to this specified address.

Therefore, as the light pen 200 moves, the image signal "'1" is written to the next memory address corresponding to the moved position, and as a result, the display element 130 is stored in the memory 350.
Image information indicating the movement trajectory of the light pen 200 above is stored.

The image information stored in the memory 350 is sent to the CPU 360
is input to the display element driving circuit 340 in real time, and the movement trajectory of the light 200 is thereby displayed on the display element 130 in real time.

On the other hand, the CPU 360 outputs a signal indicating the image information to the circular signal processing circuit 370.

The line signal processing circuit 370 performs processing such as modulation to convert the signal for the image Il'tilt, which is outputted from the CPU 360, into an inaudible signal that is distinguishable from the audio signal. It is synthesized with the voice signals output from the 11th Tsumeiso circuit and output to the telephone line 500 through which the call is made.

In addition, this processing circuit 370 performs a process of selecting pictorial information from the output signal of the other party's communication device 1600, which has a configuration similar to that of the upstream communication device, by perversion, etc., and adding it to the CPU 350, and roughly outputs the above-mentioned information. A process for adding the audio signal in No. 1g to the telephone circuit 400 is executed.

Then, when the processing circuit 370 inputs the image information 14+p from the other party's communication device 600 to the CPU 360, the CPU 360
This image information is stored in the memory 350 by U 360, and the stored image information is sent to the display element drive circuit 3.
Added to 40. As a result, an image based on the image information transmitted from the other party's communication device is displayed on the flat panel display element 130.

Thus, according to this embodiment, the other party's call by handset 700! In addition to normal voice communication with the other party's communication device 600, information about characters, graphics, etc. drawn on the tablet unit A is transmitted to the other party's communication device 600 via the line 500'
0, and this information can be displayed on the tablet section of the other party's communication device 600. Conversely, information such as characters, figures, etc. transmitted from the other party's communication device 600 can be displayed on the display element 130 of the tablet A.

According to this embodiment, it is possible to carry out a normal telephone conversation and at the same time transmit information about figures, characters, etc.

In addition, when erasing the graphic etc. displayed on the display element 130, a switch (not shown) for clearing the contents of the memory 350 is pressed.

This clear switch is for the pen shaft 20 of the light pen 200.
It can be installed at an appropriate location such as 1st grade.

In addition, in the embodiment, the light emitting element 203 is turned on by operating the push button switch 204e+3 provided on the light pen 200, but a switch is provided at the tip of the light pen 200 that is activated by the pressure of the pen, and this switch turns on the light emitting element. 20
3, it is possible to automatically light up the element 203 only when writing.

In the above embodiment, the flat panel display element 130 is placed above the semiconductor optical position detector 110, but it is also possible to place the display element 130 below the optical position detector 110. It is.

However, in this case, it is necessary to make the optical position detector 110 transparent, so a transparent material such as glass is used as the substrate 111 shown in FIG.
14 must be formed of a light-transmitting conductive film.

Moreover, the semiconductor optical position detector 110 used in the above embodiment
As shown in FIG. 2, X-direction current collector electrodes 115 and 116 are provided on the resistance layer 112, and Y-direction current collection electrodes 117 and 118 are provided on the resistance layer 114, as shown in FIG. may be provided, and current collecting electrodes in the X direction and the Y direction may be provided on the other resistance layer. Furthermore, in the embodiment, the optical position detector 110 is arranged so that the light-receiving surface is on the resistive layer 114 side, but the detector 110 may be arranged so that the light-receiving surface is on the substrate 111 side. .

In this case, the substrate 111 and the resistance layer 112 must also have light transmittance, but the advantage is that the substrate 111 can function as an optical filter.

Furthermore, in the above embodiment, a semiconductor optical position detector is applied as a position detector in the tablet part AK, but this position detector can be an electromagnetic induction type, a magnetostrictive type, an ultrasonic type, a matte
It is also possible to apply a position detector such as an lux switch type.

Note that the tablet board 100 and the light pen 200
are respectively arranged on the ground of the telephone as shown in FIG. Of course, 100 tablet boards and 20 light pens.
0 as shown in FIG. 8, a case 900 different from the telephone
This may be attached to the telephone m and connected to the telephone m.

〔Effect of the invention〕

According to the communication device according to the present invention, in addition to normal voice communication, it is also possible to transmit information such as text and graphics, and display information such as received text and graphics, so for example, it is possible to transmit information such as text and graphics, and to display information such as directions and objects. The shape can be accurately and quickly understood by the other party.

Additionally, people who are deaf or dumb can communicate in writing with the other party. Since the present invention does not require recording paper and its feeding mechanism unlike a facsimile, it can be made extremely compact and inexpensive, and is easy to operate.

Note that the present invention is naturally applicable not only to general telephone lines but also to internal telephone lines.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the communication device according to the present invention, FIG. 2 is a perspective view showing the configuration of a semiconductor optical position detector, and FIG. 3 is a power conversion layer shown in FIG. 2. Figures 4 (al, b) and (e) are conceptual diagrams showing the operation of the four-cow optical position detector, and Figure 5 shows the configuration of the light pen. FIG. 6 is a block diagram showing an example of the configuration of the position detection circuit, and FIGS. 7 and 8 are perspective views showing examples of the implementation of the tablet section.A...Tablet section , IB...signal processing unit, 100
... Tablet board, 110 ... Two-dimensional semiconductor optical position detector, 120 ... Optical filter, 130 ... Flat display element, 200 ... Light pen, 204 ... Push button switch, 203 ...・・Light emitting element, -----
-310...Position detection circuit, 340...Display element drive circuit, 350...Memory, 360...CPU, 3
70... Line signal processing circuit, 400... Telephone circuit, 500... Line, 600... Other party's communication device. Applicant's agent Takahisa Kimura, □Figure 2 Figure 3 Figure 4

Claims (3)

[Claims] (1) A tablet-type input means for inputting information such as characters and figures using a light pen, and outputting the above-mentioned information inputted by the tablet-type input means to a communication line, and characters transmitted to the communication line; A telephone communication device comprising signal processing means for displaying information such as graphics on the input surface of the tablet type input means. (2) The tablet type input means includes a two-dimensional semiconductor optical position detector, a flat display element superimposed on the optical position detector, and a light pen that forms a light spot on the light receiving surface of the optical position detector. and means for displaying the movement trajectory of the light pen at a corresponding location on the flat display element based on the output of the optical position detector, and outputting the displayed content, at least the optical position detector. Claim No.
The communication device described in item 1). (3) The above-mentioned semiconductor optical position detector includes a photoelectric conversion layer made of an amorphous semiconductor, a first resistance layer having translucency formed on the light incident surface side of the photoelectric conversion layer, and a second resistance layer formed on the other side;
Claim 2 comprising a pair of X-direction current collecting electrodes and a Y-direction current collecting electrode respectively disposed on the second resistance layer.
) Telephone equipment described in section 2.