JPS6072016A - Remote control signal transmitting and receiving system - Google Patents

Abstract

PURPOSE:To execute a remote control by receiving and discriminating a remote signal from plural input devices by a receiving device, and leading it to the main body of a computer apparatus. CONSTITUTION:Light emitting elements 10, 11 are provided on a keyboard input device 4 and an X-Y input device 5, respectively, and a remote control signal by an operation of both input devices 4, 5 is converted to an optical signal and transmitted by said light emitting elements 10, 11. This transmitted optical remote control signal is photodetected by a photodetector 13 provided on a receiving device 12, converted to an electric signal, and thereafter, from which of said both input devices 4, 5 it has been generated is discriminated in the receiving device 12. Based on this discrimination result, said signal is converted to a prescribed signal matched to an input signal form of the main body 1 of a computer apparatus, and supplied separately to one of input terminals 2, 3 of the apparatus main body 1 through wire leads 6, 7.

Description

[Detailed Description of the Invention] Technical Field> The present invention transmits information from a plurality of input devices such as an X-Y input device called a "joystick" and a keyboard input device as a wireless remote control signal, Pannal Computerra Remote Control
This invention relates to a roll signal transmission and reception system.

<Prior Art> Conventionally, in general personal computers, when connecting the computer equipment main body to a separate input device such as an X-Y input device or a keyboard input device, the method shown in FIG. 1 is usually used. As shown, a keyboard input terminal 2 and an X-Y input terminal 3 are provided on the main body 1 of the device, and the tips of wire leads 6 and 7 are integrally attached to each of the keyboard input device 4 and the X-Y input device 5, respectively. By inserting the plugs 8.9 into each of the input terminals 2.3, the computer equipment main body 1 and each input device 4.5 are electrically connected.

However, in such a case, each wire lead 6.7 attached to each input device 4.5 has only a predetermined length, so that these input devices 4.5 are placed far away from the device body 1. It was not possible to operate it.

<White eyes> The present invention has been made in view of the above points, and the first object of the present invention is to enable v-mote control of a computer equipment body using each input device even from a far away position. The purpose of the present invention is to provide a remote control signal transmission and reception system.

Furthermore, a second object of the present invention is to provide a keyboard input device and
-Receives remote control signals wirelessly emitted from multiple input devices such as Y input devices, accurately distinguishes them, converts them into predetermined input information suitable for the computer equipment, and then sends them individually to each input terminal. It is about supplying.

<Examples> The present invention will be described below according to examples shown in the drawings. Second
The figure is a schematic diagram showing a transmitting/receiving system of the present invention, in which the same parts as those of the conventional example of FIG. 1 are given the same reference numerals. In this embodiment, a light emitting element 10.11 is attached to the back of each of the keyboard input device 4 and the X-Y input device 5, and the electric remote control signal obtained by the operation of the input device 4.5 is transmitted to the light emitting element. 10.11, it is converted into an optical signal and transmitted. The optical remote control signal thus transmitted is received by the light receiving element 13 attached to the front of the receiving device 12 and converted into an electrical remote control signal. It is determined whether the signal is emitted from the keyboard input device 4 or the X-Y input device 5, and based on the result of this determination, the signal is converted into a predetermined format that matches the input signal format of the computer equipment main body 1. After that, it is configured to be individually supplied to either one of the input terminals 2.3 of the device main body 1 via a wire lead 6.7.

FIG. 3 shows a more specific embodiment of the keyboard input device 4, which is one of the input devices on the sending side, and the operation of this input device will be explained. Now, when the desired input data is entered manually on this keyboard input device, first, the key matrix circuit 14 outputs 8-pin (or 16-bit) parallel data that matches the input key, and at the same time a command is issued from the CPU 7. The start pulse generator 18 is driven based on this, and a negative polarity pulse having a predetermined pulse width (here, 3 rnsec) is generated.

At this time, the parallel data from the key matrix circuit 14 is also supplied to the parallel-to-serial converter 15, where after generation of the internal start pulse, it is sequentially converted into serial data and supplied to the pulse position modulator 16, which modulates the pulse position. be done. The serial pulse position modulation data thus obtained and the start pulse obtained from the start pulse generator 18 are mixed in the signal mixing circuit 19,
As a result, output data has a waveform diagram as shown in Fig. 4(a) (output data in this case is <11010100)
) is obtained.

In the example shown in Fig. 4, the start pulse has a pulse width of u3rnsec, and the pulse interval of the key data part is 2m5.
When ec, it represents '1'', and when 1m5ec, it represents '0'.
represents. Thus, in this embodiment, one start pulse of 3 m5ec and one 8-bit data pulse are sequentially output as the output of the mixing circuit 19 every time there is one key input. The negative pulse output thus obtained is supplied to the light emitting element drive circuit 20, thereby driving the light emitting element 10 to blink.

As a result, key input information from the keyboard input device can be wirelessly transmitted as a remote control signal.

FIG. 5 shows a specific embodiment of the X-Y input device 5, and the operation of this device will be explained. First, when the stick-like operating rod of the input device is operated, the sliders of the two variable resistors 21 and 22 are slid in conjunction with this operation. Here, the setting value of one variable resistor 21 determines the position in the X-axis direction,
The set value of the other variable resistor 22 determines the position Rk in the X-axis direction.

The voltage values obtained from the sliders of each of these variable resistors 21 and 22 are applied to an AD (analog-digital) converter 23, and each is converted into a parallel digital signal of 4 bits (or 8 bits), a total of 8 bits. The signal is converted into a parallel-to-serial converter 24 and supplied to the parallel-serial converter 24. On the other hand, the start pulse generator 25 periodically generates a negative start pulse having a predetermined pulse width (here, 4 m5ec) based on a command from the CPU 26 and supplies it to the signal mixing circuit 27. At this time, parallel serial converter 2
4, the above AD is executed based on the command from CPU 2'6.
After the start pulse is generated, the parallel data from the converter 23 is sequentially converted to serial data and sent to the signal mixing circuit 2.
As a result, in the signal mixing circuit 27, the start signal and the output of the parallel serial converter 24 are mixed, and the output data having the waveform diagram shown in FIG. and following this 8
Bi-nod data pulses are periodically derived. The negative polarity pulse output thus obtained is transmitted to the light emitting element drive circuit 28.
As a result, the X-Y of the operating rod in the X-Y input device is supplied to the
In this case, the remote control signal transmitted from the keyboard input device 4 and the remote control signal transmitted from the XY input device 5 can be transmitted as optical remote control signals according to the position. For identification, the pulse width of the start pulses of the two are different, that is, the pulse width of the start pulse generated by the keyboard input device 4 is set to 3 m5ec, and
- The pulse width of the start pulse generated by the Y input device 5 is set to e4 msec.

Furthermore, FIG. 6 shows a specific embodiment of the receiving device 12. Here, first, an optical remote control signal transmitted from the keyboard input device 4 or the XY input device 5 is received by the light receiving element 13 and converted into an electrical signal by the photoelectric conversion circuit 29. The remote control signal thus converted into an electrical signal is supplied to the start pulse discriminating circuit 30, where it determines whether the received signal is one that was generated by the keyboard input device 4 or an X-Y signal depending on the length of the start pulse of the remote control signal. Input device 5
The pulse width of this start pulse is <3m5ec as shown in Fig. 4(a).
In this case, the switch of the changeover switch 30 is connected to the terminal ■
At this time, the received remote control signal is supplied to the Norms position demodulation circuit 32, where it is demodulated to the original 7-real digital data and supplied to the computer equipment body 1 through the plug 8.

On the other hand, if the pulse width of this start pulse is 4 msec as shown in FIG.
is switched to the terminal ■ side, and at this time, the received remote control signal is supplied to the parallel-serial converter 33, where it is converted to parallel data, and the wire lead 7
and is supplied to the computer equipment main body 1 via the plug 9.

Effects> As described in Part 2, according to the remote control transmission/reception system of the present invention, since remote control signals can be transmitted and received wirelessly from the input device, the input device can be operated even at a location away from the main body of the computer device. .

Further, according to the transmitting/receiving system of the present invention, when transmitting data from the input device, a different start pulse is transmitted for each input device prior to each data, so that the receiving device side can select which input device. It is possible to accurately determine whether the remote control signal is emitted from the
This makes it possible to easily convert the signal into a signal conforming to the signal format desired by the computer equipment itself. Therefore, in this case, the remote control signal is once received by the receiving device, converted into the desired signal form of the computer equipment body, and guided to the input terminal of the computer equipment body. Existing computer equipment can be used as is without modifying its form.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing the coupling relationship between a computer equipment main body and an input device conventionally used in a general personal computer, and FIG. 2 is a schematic configuration diagram of an embodiment using the transmitting/receiving system of the present invention. Fig. 3 is a block diagram of the keyboard input device used in the embodiment, Fig. 4 is a signal waveform diagram for explaining the operation of the embodiment, and Fig. 5 is the X-Y input device used in the embodiment. Block Diagram of Apparatus FIG. 6 is a block diagram of a receiving apparatus used in the same embodiment. 1... Computer equipment body, 2... Keyboard input terminal, 3... X-Y input terminal, 4
...Keyboard input device, 5...X-Y
Input device, 6.7...Wire lead, 12.
... Receiving device, agent Patent attorney Aihiko Fukushi (and 2 others)
Name) Procedures Amendment Document March 1, 1981 1. Indication of the case Patent application 181712.1982 2. Name of the invention Remote control signal transmission/reception system 3. Person making the amendment Relationship to the case Patent applicant address 22-22 Nagaike-cho, Abeno-ku, Osaka 545 Name (504) Sharp Corporation Representative Saeki Asahi 4 Address of agent 5 Tokyo Branch Technical Department 22-22 Nagaike-cho, Abeno-ku, Osaka 545 Amended Order Nikkan Jihatsu 6, subject to amendment

Claims (1)

[Claims] 1. Send remote control signals from multiple wireless input devices, receive these remote control signals at the receiving device, determine which input device the signal came from, and connect it to the computer device using wire leads. A remote control signal transmission/reception system characterized in that the signal is guided to a predetermined input terminal of the main body.