JPS63189930A - Input device for optical specification - Google Patents

Abstract

PURPOSE:To accurately decide a selected position on a screen by combining 1st and 2nd light transmitters/receivers provided with plural photodetector arranged in the vicinity of the outer periphery of the screen of a display device. CONSTITUTION:Plural photodetector 131-134 corresponding to the coordinates of the screen divided into many quadrants are arranged on the side of the 1st light transmitter/receiver 10. The 1st light transmitter/receiver 10 receives one kind of reference optical pulses radiated from the 2nd light transmitter/ receiver 20. Even if the 2nd light transmitter/receiver 20 is slightly inclined during the operation, light intensity is respectively detected in respective reference pulses, so that a selected position on the screen can be accurately decided.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an optical instruction input device used for personal computer input, coordinate manual input, VTR program reservation, captain's menu selection, and the like.

Conventional Technology An input means called a mouse is used to place a cursor on an image displayed on the screen of a display and move it to select and specify a predetermined item or input coordinates. .

This method using a mouse is advantageous in that input processing can be performed more easily and quickly than using a keyboard.

Problems to be Solved by the Invention However, in the method using a mouse, since operations are performed on a plane different from the screen, it may not be easy to secure space for the operation. In addition, operating the mouse does not directly indicate the position on the screen (it is operated on a different plane, which is undesirable from an ergonomic point of view.

Furthermore, input methods such as a mouse are not always appropriate when operations are to be performed from a distance, such as when using a screen to schedule VTR recordings, select captains, or teletext menus, and when there is not enough flat surface operation space. I couldn't say yes.

The purpose of this invention is to solve the above-mentioned conventional problems, and to make it possible to determine the cursor position and input the displayed menu using a personal computer, etc. by remotely instructing directly on the screen. An object of the present invention is to provide an optical instruction input device.

Means for Solving the Problems The present invention provides a first optical transmitter/receiver in which a light transmitter/receiver is disposed close to the outer periphery of a screen of a display device, and a first optical transmitter/receiver located in front of the screen. It consists of a combination with a second optical transceiver for communication. The first optical transceiver includes an infrared light emitting element that emits an infrared pulse signal that repeats at a constant cycle, a plurality of infrared light receiving elements arranged corresponding to the multi-sectioned surface of the screen, and a plurality of infrared light receiving elements on the screen. In order to display a cursor at a selected designated position, the apparatus includes a signal processing circuit that detects the designated position from the light reception output signal of each of the infrared light receiving elements. Further, the second optical transceiver includes an infrared light receiving element that receives an infrared pulse emitted from the infrared light emitting element of the first optical transceiver, and the first light transmitting/receiving device based on the detected pulse of the infrared light receiving element. The device is characterized by comprising an infrared light emitting element that emits infrared pulses toward the infrared light receiving elements of the device.

According to the optical instruction input device of the present invention, a plurality of infrared receiving elements are disposed on the first optical transceiver side corresponding to the coordinates of the multi-sectioned screen, and from the second optical transceiver It is designed to receive one type of reference infrared pulse that is emitted. Therefore, even if the second optical transmitter/receiver is slightly similar during operation, each detects the intensity of light with respect to its reference pulse, so the selected position on the screen can be accurately determined. In addition, the first and second optical transceivers are connected by transmitting and receiving infrared signals, and are not wired, so there is no hassle during operation.

Embodiments Examples of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of an optical instruction input device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an example in which the invention is applied to a display device.

10 is an optical transceiver, and 11 is an optical transceiver section. One surface of the optical transmitter/receiver 11 has an infrared light emitting element 1 in the center.
2 is attached, and the infrared pulse is emitted in response to a pulse that repeats at a fixed period. 1
3L 132, 133, and 134 are infrared light receiving elements, which are arranged corresponding to the 11th (2) and m1th (2) quadrants of the rectangular coordinates X-Y, respectively. The optical transmitter/receiver 11 of the optical transmitter/receiver 10 has a surface on which at least the above-mentioned elements are attached, and is arranged close to the outer periphery of the screen 31 of the display device 30 . And the transmitting and receiving side is screen 3
Placed facing the front of 1. Of course, display device 3
0 and the optical transceiver 10 may be integrated in a cabinet.

The arrangement of each element of the optical transmitter/receiver 11 is
- They are arranged in correspondence with the planes segmented by the Y coordinate.

20 is another optical transceiver that communicates with the optical transceiver 10 using infrared signals, and is also a handy operating device. 2
1 is an infrared light receiving element, and 22 is an infrared light emitting element.

Further, 23 is an execution key. The optical transceiver 20 is held and operated so as to be positioned in front of the screen 31, as shown in FIG. Infrared receiving element 21
receives an infrared pulse emitted from the infrared light emitting element 12. The received pulse is amplified and waveform-shaped by a circuit inside the optical transceiver 20 and applied as a reference pulse to the infrared light emitting element 22, causing it to emit light and emitted toward the optical transceiver 10.

When you hold the optical transceiver 20 and aim at the menu on the screen, the infrared receiving elements 131 to 1 on the optical transceiver 10 side
34, the intensity of the received light differs depending on the selected and designated position, so there is a difference in the amplitude of each pulse extracted. By processing each pulse,
A signal for detecting the position is obtained, and the cursor 32 can be placed at a selected position on the screen 31 by the signal. Therefore, it is possible to move the optical transceiver 20 to move the cursor 32 to any position on the screen 31.

When the execution key 23 is pressed when the cursor 32 comes to a predetermined menu display position, the pulse applied to the infrared light emitting element 22 is cut off, or the pulse of the infrared light emitting element 22 is mixed in to cause the element 22 to emit light. As a result, the optical transceiver 10 reads the change, processes the received signal, and changes the color of the display indicated by the cursor 32 to indicate that it has been selected.

FIG. 3 is a block circuit diagram showing the circuit configuration of the optical transceiver 10.20, and FIG. 4 is a waveform diagram for explaining the circuit operation.

Reference numeral 15 in the optical transmitter/receiver 10 is a pulse oscillator that generates a reference pulse (A) that repeats at a constant period and applies it to the infrared light emitting element 12 to cause it to emit light.

The infrared pulse emitted from the element 12 is received by the infrared receiving element 21 of the optical transceiver 20 and extracted as a pulse (b). The pulse (b) is waveform-shaped by the waveform shaping circuit 24, then amplified by the amplifier 25, and is applied as a reference pulse (c) to cause the infrared light emitting element 22 to emit light. The infrared pulses emitted from the element 22 are received by the infrared receiving elements 131 to 134 of the optical transmitter/receiver 10, respectively, and pulses with amplitude differences depending on the positional relationship (
d), (e), (he), and (g) are taken out. These pulses are processed by sample and hold circuits 141 to 144 into pulses with large time widths (2") and (E9), respectively.
, (1), and (g'), and are applied to the analog-to-digital conversion circuit 171. The positional information converted into digital information by the circuit 171 is calculated by the calculator 172, and the coordinate input is taken out by the X/Y coordinate determination circuit 173 and provided to the display device 30.

On the other hand, when the execution key 23 is pressed, the pulse (c) is temporarily cut off. This state appears as part of the pulses (D), (E), (E), and (G) on the optical transceiver 10 side being cut off, and this state is detected by the circuit 174. The pulse deletion detection output is given to the display device 30 and used as a control signal for changing the color of the designated display.

I can think of a better way to change the way the execution key works.
This is usually easy to do from a circuit perspective.

As described above in detail, the optical instruction input device of the present invention allows the user to select the screen position of a display device wirelessly and with a simple operation.

The optical transmitter/receiver on the controller side sends signals using essentially a single infrared light emitting element, so even if the posture is slightly off,
Since a plurality of infrared receiving elements on the receiving side receive signals simultaneously, there is no possibility of position detection errors. In addition, it is extremely practical because there is no need to secure extra flat space like with a mouse, and you can simply aim directly at the screen for instruction operations.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of an optical instruction input device according to an embodiment of the present invention, FIG. 2 is a perspective view showing an example of the use of the device, FIG. 3 is a block circuit diagram of the device, and FIG. FIG. 3 is a waveform diagram for explaining the operation of the circuit shown in FIG. 10.20... Optical transceiver, 30... Display device, 12.22... Infrared light emitting element, 131~134.21... Infrared light receiving element, 141~144.171~174...φ signal processing circuit. Patent Applicant NEC Home Electronics Figure 4 Procedural Amendment Document March 7, 1982 Patent Application No. 21408 of 1982 2, Name of Invention Optical Indication Input Hrj1 3, Person Making Amendment 6, Subject of Amendment (1 ) Amend column (1) "Scope of Claims" in "2. Scope of Claims" of the specification as shown in the attached sheet. (2) Figure 3 of the attached drawings is amended as shown in the attached sheet. (3) "Used for selection, etc." on page 2, line 12 of the specification is corrected as follows. "Selections, etc. can be easily performed from a distance by remote operation." (4) The statement regarding "Means for solving problems" in lines 1 to 19 of page 4 of the specification is as follows: Correct it like this. ``This invention includes a first optical transceiver in which a light transmitting/receiving section is arranged close to the outer periphery of a screen of a display device, and a second optical transceiver positioned in front of the screen and communicating with the first optical transceiver. It consists of a combination with a vessel.And,
The first optical transceiver includes a light emitting element that emits a pulse signal that repeats at a constant cycle, a plurality of light receiving elements arranged corresponding to the multi-sectioned surface of the screen, and a selected specified position on the screen. In order to display a cursor on the image, the device is equipped with a signal processing circuit that detects a designated branch position from the light receiving output signal of each of the light receiving elements. Further, the second optical transceiver includes a light receiving element that receives the light pulse emitted from the light emitting element of the first optical transceiver, and a light receiving element of the first optical transceiver based on the detected pulse of the light receiving element. The device is characterized in that it includes a light emitting element that emits light pulses toward the array of elements. (5) The description of "action" on page 5, lines 1 to 12 of the specification is corrected as follows. ``According to the optical instruction input device of the present invention, a plurality of light receiving elements are arranged on the first optical transmitter/receiver side corresponding to the coordinates of the screen divided into multiple quadrants. The second optical transceiver receives one type of reference light pulse emitted from the optical transceiver.Therefore, even if the second optical transceiver is slightly similar during operation, the intensity of the light for the reference pulse will be different for each optical transceiver. Since the selected position on the screen can be determined accurately, the first and second optical transceivers are connected by transmitting and receiving optical signals, and are not wired, but are connected during operation. (6) "Pulse" on page 7, line 12 of the specification is corrected to "pulse output." (7) Insert the following sentence on the last line of page 9 of the specification. "The transmission and reception of signals between the first and second optical transmitter/receivers 10.20 does not necessarily need to be performed using infrared light; any light pulses with the same effect can work in the same way as above. '' (Attachment) 2. Claims (1) A first optical transmitter/receiver having a light transmitting/receiving section disposed close to the outer periphery of a screen of a display device, and a first optical transmitter/receiver positioned in front of the screen. In the combination with a second optical transceiver communicating with an optical transceiver of In order to display a cursor at a selected specified position on the screen, the specified position is determined from the light reception output signal of each of the previous m elements. and a signal processing circuit for detecting, the second optical transceiver is emitted from the first optical transceiver traced element!
A light-receiving element that receives a pulse, and a five-light dog element that emits a reference light pulse toward the first optical transmitter/receiver element based on the detected pulse of the element. (2) A patent characterized in that the first optical transmitter/receiver is provided with a multi-located receiving element corresponding to a screen divided into multiple sections. An optical instruction input device according to claim 1.

Claims (2)

[Claims] (1) A first optical transceiver whose light transmitting/receiving unit is arranged close to the outer periphery of the screen of the display device, and a second optical transceiver positioned in front of the screen and communicating with the first optical transceiver. In combination, the first optical transmitter/receiver includes an infrared light emitting element that emits an infrared pulse signal that repeats at a constant cycle, and a plurality of infrared light receivers arranged corresponding to the multi-sectioned surface of the screen. element, and a signal processing circuit that detects the designated position from the received light output signal of each of the infrared receiving elements in order to display a cursor at the selected designated position on the screen, and the second The optical transceiver includes an infrared light receiving element that receives an infrared pulse emitted from the infrared light emitting element of the first optical transceiver, and an infrared light receiving element of the first optical transceiver based on the detected pulse of the infrared light receiving element. An optical instruction input device comprising an infrared light emitting element that emits a reference infrared pulse toward the elements. (2) Optical instruction input according to claim 1, characterized in that the first optical transmitter/receiver is equipped with four infrared receiving elements corresponding to the screen multi-sectioned into four quadrants. Device.