JP2005092450A - Input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input device capable of reliably inputting information on the basis of a user's will with a simple configuration, with respect to an input device that detects an indicated position and recognizes and outputs information based on the detected indicated position. For the purpose.
SOLUTION: In an input device that detects an indicated position and recognizes and outputs information based on the detected indicated position, an indicated position detecting means for detecting the indicated position, and voice detection for detecting sound. And a control means for validating information recognized based on the designated position detected by the designated position detecting means when the voice is detected by the voice detecting means.
[Selection] Figure 2

Description

  The present invention relates to an input device, and more particularly to an input device that detects an indicated position, recognizes information based on the detected indicated position, and outputs the information.

  As character information input devices for inputting characters and the like, there are a keyboard and pen input device capable of inputting characters by hand movement, a voice input device capable of inputting characters by voice, and the like.

  In an input device such as a keyboard, a character code corresponding to the pressed key is supplied as input information to a host device or the like. The voice input device also identifies character information from the input voice, converts it into a character code, and inputs it to the host device.

Some input devices such as a keyboard are combined with a voice recognition device in order to prevent erroneous operation and input. Such an input device displays an echo back of touch position input information on a display, recognizes a specific voice keyword from an operator, and validates the input information (see Patent Document 1).
JP-A-64-41922

  However, since conventional input devices need to perform voice recognition, it has been difficult for those who cannot pronounce clearly to input characters using these input devices. In addition, voice recognition has a complicated process and cannot be easily introduced.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an input device that can reliably input information based on the user's will with a simple configuration.

  The present invention relates to an input device that detects an indicated position, recognizes information based on the detected indicated position, and outputs information, an indicated position detecting means for detecting the indicated position, an audio detecting means for detecting audio, and an audio And control means for validating information recognized based on the indicated position detected by the indicated position detecting means when a sound is detected by the detecting means.

  Further, the present invention is characterized in that a sound having a predetermined sound pressure or higher is detected by a sound detection means.

  Furthermore, the present invention is characterized by comprising display means for displaying information recognized on the basis of the designated position so as to be superimposed on the designated position detecting means.

  Further, the present invention is characterized in that information recognized based on the designated position is displayed at a position shifted from the designated position.

  In addition, the present invention is characterized in that the display means is constituted by a liquid crystal display device.

  Furthermore, the present invention is characterized in that information recognized based on the indicated position detected by the indicated position detecting means is switched by the control means.

  Further, the present invention is characterized in that the previously recognized information is invalidated when a predetermined position is detected by the indicated position detection means by the control means.

  As described above, according to the present invention, when voice is detected, information that is recognized based on the designated pointing position is validated, thereby enabling information input according to the will of the input person. It has the features such as.

  FIG. 1 is an exploded perspective view of a first embodiment of the input device of the present invention, and FIG. 2 is a block diagram of the first embodiment of the input device of the present invention.

  The input device 1 of the present embodiment includes a touch panel 11 that is a pointing position detection unit, a liquid crystal panel 12 that is a display unit, a control circuit board 13, a case 14, and a cover 15.

  The touch panel 11 is a coordinate detection device for detecting the coordinates of the contact position, and is composed of, for example, an analog resistance film type input panel. The analog resistive film type input panel has a configuration in which a glass substrate on which a transparent conductive film is formed and a film substrate on which a transparent conductive film is formed are stacked and arranged so that the conductive films face each other at a constant interval. By detecting the potential of the transparent conductive film, the contact coordinate position between the glass substrate and the film substrate can be detected.

  The touch panel 11 is connected to the control circuit board 13 by a flexible printed wiring board 21. The potential of the transparent conductive film is supplied to the control circuit board 13 through the flexible printed wiring board 21. The control circuit board 13 detects the contact coordinate position based on the potential of the transparent electrode of the touch panel 11.

  The liquid crystal panel 12 is arranged on the lower surface side of the touch panel 11 and displays information input by operating the touch panel 11. The liquid crystal panel 12 is connected to the control circuit board 13 by a flexible printed wiring board 31 and is driven by a drive signal from the control circuit board 13 to display an image.

  The control circuit board 13 is disposed on the lower surface side of the liquid crystal panel 12, and the flexible printed wiring boards 21 and 31 are connected to detect the input position of the touch panel 11 and drive the liquid crystal panel 12. The control circuit board 13 communicates with the host computer via the communication cable 41.

  On the control circuit board 13, a coordinate detection unit 111, a control unit 112, a microphone 113, a sound detection unit 114, a display control unit 115, and a communication unit 116 are mounted.

  The coordinate detection unit 111 is supplied with the potential of the transparent electrode from the touch panel 11 via the flexible printed wiring board 21. The coordinate detection unit 114 detects the coordinates of the contact position based on the potential of the transparent electrode of the touch panel 11. The coordinate information detected by the coordinate detection unit 111 is supplied to the control unit 112.

  The microphone 113 converts sound into an electrical signal. The sound signal converted by the microphone 113 is supplied to the sound detection unit 114.

  FIG. 3 shows a block configuration diagram of the voice detection unit 114.

  The voice detection unit 114 includes a waveform processing unit 121, an analog / digital converter 122, a frequency measurement unit 123, and a sound pressure measurement unit 124.

  An audio signal is supplied from the microphone 113 to the waveform processing unit 121. The waveform processing unit 121 shapes and outputs the waveform of the audio signal from the microphone 113. The audio signal whose waveform has been shaped by the waveform processing unit 121 is supplied to the analog-digital converter 122.

  The analog / digital converter 122 converts the audio signal from the waveform processing unit 121 into digital data. The digital data converted by the analog / digital converter 122 is supplied to the frequency measurement unit 123 and the sound pressure measurement unit 124.

  The frequency measurement unit 123 measures the frequency of the audio signal acquired by the microphone 113 from the digital data from the analog-digital converter 122 and outputs the frequency information. The frequency information measured by the frequency measuring unit 123 is supplied to the control unit 112.

  The sound pressure measurement unit 124 measures the sound pressure of the sound signal acquired by the microphone 113 from the digital data from the analog-digital converter 122 and outputs the sound pressure information. The sound pressure information measured by the sound pressure measurement unit 124 is supplied to the control unit 112.

  In addition, the control unit 112 supplies image data corresponding to the input information to the display control unit 115. The display control unit 115 drives the liquid crystal panel 12 based on the image data from the control unit 112.

  FIG. 4 is a view showing a display screen of the liquid crystal panel 12.

  The display screen of the liquid crystal panel 12 includes an input information unit 131, a tag unit 132, and an undo unit 133.

  The input information section 131 displays input information 131-1 to 131-n in a matrix. The tag part 132 includes a plurality of tags 132-1 to 132-n displayed on the upper end part of the input information part 131. By selecting a predetermined tag 132-i from the plurality of tags 132-1 to 132-m, the notation of information displayed on the input information unit 131 can be switched. By selecting tags, a lot of information can be input. In addition, the size of the input information displayed on the input unit can be set large. The control unit 112 manages coordinate information on the touch panel 11 and information displayed on the liquid crystal panel 12 in association with each other.

  Further, the control unit 112 supplies input information determined according to the coordinate information detected by the coordinate detection unit 111 to the communication unit 116. The communication unit 116 transmits the input information supplied from the control unit 112 to a host computer or the like.

  Here, the processing operation of the control unit 112 will be described.

  FIG. 5 shows a process flowchart of the control unit 112.

  When the control unit 112 acquires the coordinates from the coordinate detection unit 111 in step S1-1, the control unit 112 determines an input part according to the coordinates in step S1-2. Next, in step S1-3, the control unit 112 controls the display control unit 115 to change the display color of the input part from the surroundings so that the input part can be easily identified.

  Next, the control part 112 takes in frequency information and sound pressure information from the audio | voice detection part 114 by step S1-4. The control unit 112 determines whether or not the frequency information is present in the frequency band set in advance in step S1-5, for example, 50 Hz to 1 kHz that is a frequency band of a normal audio signal.

  When the frequency information acquired from the voice detection unit 114 in step S1-5 exists in a predetermined frequency band, the control unit 112 sets the sound pressure information acquired from the voice detection unit 114 in step S1-6 in advance. It is determined whether or not a predetermined sound pressure, for example, a sound pressure of a voice generated by a person in a normal conversation has been reached.

  When the frequency information captured from the voice detection unit 114 in steps S1-5 and S1-6 does not exist in the predetermined frequency band, or the frequency information exists in the predetermined frequency band, the control unit 112 performs sound pressure information. If the sound pressure is not equal to or higher than the predetermined sound pressure, steps S1-4 to S1-6 are repeated until a predetermined time elapses in step S1-7. When the frequency information captured from the voice detection unit 114 does not exist in the predetermined frequency band for a certain time in step S1-7, or the frequency information exists in the predetermined frequency band, the control unit 112 has sound pressure information. If it is not equal to or higher than the certain sound pressure, the input process is terminated.

  Further, when a sound having a predetermined frequency range and a predetermined sound pressure or higher is detected in steps S1-5 and S1-6, the control unit 112 determines whether or not the input part is the undo unit 133 in step S1-8. If the input part is the undo unit 133 in step S1-8, the control unit 112 transmits an instruction to delete the previously input character to the host in step S1-9, and ends the process.

  Moreover, the control part 112 determines whether an input site | part is a tag by step S1-10. When the input part is a tag in step S1-10, the control unit 112 controls the display control unit 115 in step S1-11 so that the information on the liquid crystal panel 12 is displayed according to the tag. Switch.

  If the input part is not the undo part 133 and the tag in step S1-10, the control part 112 transmits information corresponding to the input part to the host via the communication part 116 in step S1-12.

  The control circuit board 13 is fixed to the case 14 by screwing the screws 51 into the screw holes 71 of the case 14 through the through holes 61 of the control circuit board 13. The microphone 113 is disposed and mounted on the upper end portion of the control circuit board 13. The upper end portion of the cover 15 has a hole portion 141 at a position corresponding to the microphone 113. The user's voice is supplied to the microphone 113 through the hole 141.

  According to the present embodiment, when the voice is detected, the information of the instructed position is acquired and transmitted to the host, so that the information input by the user can be surely input. At this time, since the user's intention to input is confirmed by the frequency and sound pressure of the voice without performing a complicated operation such as voice recognition, information can be input by a simple input operation. Characters that are not intended to be input are entered even if the same position is pressed multiple times by shaking the hand, or if the position of another character that is not intended to be input is pressed while the hand is moved to the target location. There is no. Therefore, for example, when a character “Ika” is input, a character string such as “Is it good soot?” Is not input.

  In this embodiment, the undo unit 133 is also validated based on the voice detection result. However, the undo unit 133 is regarded as being operated when it is simply touched, regardless of the voice detection result. You may make it do. Thereby, the correction operation can be easily performed.

  In this embodiment, the input information is displayed on the liquid crystal panel. However, if the display screen is not switched, the input information may be printed on the character panel and displayed.

  FIG. 6 is an exploded perspective view of the second embodiment of the present invention, FIG. 7 is a block diagram of the second embodiment of the present invention, and FIG. 8 is a cross-sectional view of the main part of the second embodiment of the present invention. In the figure, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  In the input device 200 of this embodiment, a character panel 201 and a light shielding plate 202 are provided on the lower surface of the touch panel 11 instead of the liquid crystal panel 12, and the light emitting diodes D1 to Dn and the light emitting diodes D1 to Dn are driven on the control circuit board 203. The circuit unit 204 is mounted.

  The light emitting diodes D <b> 1 to Dn are arranged on the lower surface side of the control circuit board 203 and are emitted to the front side through the through holes 211 provided in the control circuit board 202. The light emitting diodes D1 to Dn and the through hole 211 of the control circuit board 203 are provided corresponding to each character information C1 to Cn printed on the character panel 201.

  The light shielding plate 202 is made of a black sponge material or the like, and shields light from the light emitting diodes D1 to Dn at the boundary portions of the character information C1 to Cn printed on the character panel 201. The light shielding plate 202 prevents light from the adjacent light emitting diodes D1 to Dn from entering. Thereby, the character information can be clearly identified.

  The light emitting diodes D1 to Dn are driven by a drive signal from the drive circuit unit 204 and emit light. The drive circuit unit 203 generates a drive signal to be supplied to the light emitting diodes D1 to Dn based on a control signal from the control unit 205.

  In the first and second embodiments, the input information position is matched with the input information display. However, the input information display may be made different from the input information position so that it can be easily recognized at the time of instruction. .

  FIG. 9 is a diagram showing a modification of the input information display method.

  If the input information position matches the input information display, the currently input character cannot be seen. Therefore, as shown in FIG. 9, when the area A11 is pressed, the area A12 above it emits light, and it is recognized that the input target of the area A11 currently pressed is a character written in the area A12. .

  In the first and second embodiments, the undo portion is formed as the coordinate position of the touch panel 11. However, it may be provided as a dedicated switch integrally with the apparatus main body.

  FIG. 10 is a system configuration diagram of the third embodiment of the present invention, and FIG. 11 is a block configuration diagram of the third embodiment of the present invention.

  The input device of this embodiment is provided with an undo panel switch 301 adjacent to the touch panel 11.

  The undo panel switch 301 is connected to the control unit 112. The control unit 112 determines step S1-8 in the process flowchart shown in FIG. 5 by operating the undo panel switch 301, and executes the process of step S1-9.

  In the first and second embodiments, the microphone 113 is built in the main body of the input device 1, but it may be externally attached. When the microphone 113 is externally attached, the audio signal may be supplied to the main body of the input apparatus 1 wirelessly by wireless communication even when connected by a cable.

It is a disassembled perspective view of 1st Example of the input device of this invention. It is a block block diagram of 1st Example of the input device of this invention. 3 is a block configuration diagram of a voice detection unit 114. FIG. 3 is a diagram showing a display screen of a liquid crystal panel 12. FIG. 4 is a processing flowchart of a control unit 112. It is a disassembled perspective view of 2nd Example of this invention. It is a block block diagram of 2nd Example of this invention. It is sectional drawing of the principal part of 2nd Example of this invention. It is a figure which shows the modification of the input information display method. It is a system configuration | structure figure of 3rd Example of this invention. It is a block block diagram of 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,200 Input device 11 Touch panel, 12 Liquid crystal panel, 13 Control circuit board 14 Case, 15 Cover 111 Coordinate detection part, 112 Control part, 113 Microphone 114 Voice detection part, 115 Display control part, 116 Communication part 121 Waveform processing part, 122 ADC, 123 Frequency measurement unit 124 Sound pressure measurement unit 131 Input information unit, 132 Tag unit, 133 undo unit

Claims (7)

In an input device that detects an indicated position, recognizes information based on the detected indicated position, and outputs the information,
Indicated position detecting means for detecting the indicated position;
Voice detection means for detecting voice;
An input device comprising: control means for validating information recognized on the basis of the designated position detected by the designated position detecting means when a voice is detected by the voice detecting means.   The input device according to claim 1, wherein the sound detection unit detects a sound having a predetermined sound pressure or higher.   3. The input device according to claim 1, further comprising display means for displaying information recognized on the basis of the designated position so as to be superimposed on the designated position detecting means.   4. The input device according to claim 3, wherein the display means displays information recognized based on the designated position at a position shifted from the designated position.   5. The input device according to claim 3, wherein the display means is constituted by a liquid crystal display device.   The input device according to claim 1, wherein the control unit switches information recognized based on an indication position detected by the indication position detection unit.   The input device according to any one of claims 1 to 6, wherein the control unit invalidates previously recognized information when a predetermined position is detected by the indicated position detection unit.

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