JPH08314605A - Input device - Google Patents

Abstract

PURPOSE: To easily connect the input device to an existent computer and use a general remote control unit as the input device of the computer by providing an output terminal and plural conversion tables in the input device. CONSTITUTION: A code sent from a general remote control unit 1 is photodetected by a photodetecting element 2, amplified by an amplifier 3, and then transmitted to a control microcomputer 5. In this control microcomputer 5, the received code is decoded, but since its transmission code format is not the same, an effective decoding format is selected out of a conversion table 4 to decode the received code. The kind of remote control can be decided by detecting the total transmission time of data sent from the remote controller and the conversion table of effective decoding format can be selected out of plural conversion tables. The decoded remote control code is converted into the key code of a corresponding computer by a control microcomputer 5 and the converted key code is transmitted to the keyboard terminal of the computer through a buffer 6 and an output terminal 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control input device.

[0002]

2. Description of the Related Art In recent years, a mainstream input device is one in which a keyboard and a computer are connected by a cord and characters are input.

Conventionally, this kind of computer input device has been
As shown in FIG. 2, the keyboard 9 and the computer main body 1
2 is connected by a cord. The characters input from the keyboard 9 are coded in the keyboard 9 and input to the keyboard controller 10 in the computer main body 12 to decode the code, and then the computer main body 12
The characters transmitted and input to the main CPU 11 therein are recognized.

[0004]

However, in such a conventional connecting method, a long cord connecting the keyboard and the computer is required when operating at a remote place. Therefore, it is conceivable to use a cordless keyboard, but since it can be operated only by a dedicated computer main body having a built-in light receiver and a dedicated keyboard, it has a problem of lacking versatility.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus that can easily convert an existing computer into a cordless input and use a general-purpose remote control transmitter.

[0006]

In order to achieve the above object, the present invention comprises a receiving means, a control means, and a plurality of conversion tables.

[0007]

With this configuration, the signal from the remote control transmitter is received by the receiving means, the received weak signal is amplified by the amplifier, and then the control means selects a valid table from the plurality of conversion tables to output the remote control code. After decoding, convert to the corresponding computer keyboard code.
The converted signal is transmitted to the keyboard terminal of the computer via the output terminal to the computer. With such a configuration, it can be easily connected to an existing computer, and a general-purpose remote control device can be easily used as an input device of the computer.

[0008]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to FIG.

As shown in FIG. 1, the input device 8 comprises a light receiving element 2, an amplifier 3, a control microcomputer 4, a conversion table 5, a buffer 6 and an output terminal 7.

To explain the operation in the above configuration, the code transmitted from the general-purpose remote control transmitter 1 is received by the light receiving element 2, amplified by the amplifier 3, and then transmitted to the control microcomputer 4. The reception code is decoded in this control microcomputer, but since the general-purpose remote control transmitter is used and the transmission code formats are not the same, a valid decoding format is selected from the conversion table 5 and the reception code is decoded. . The type of remote controller can be determined by detecting the total transmission time of the data sent from the remote controller, and a valid decoding format conversion table can be selected from a plurality of conversion tables. The remote control code thus decoded is converted into a corresponding computer key code by the control microcomputer and the signal is adjusted in the buffer 6 and transmitted to the keyboard terminal of the computer via the output terminal 7.

In addition to the method described above, the remote controller model can be discriminated by a difference in reader length, trailer length, bit length, or total number of data bits, or by the higher order of bits in the data section. The specific bit and the lower specific bit can be distinguished by using the inversion relationship.

As described above, according to the input device of the present invention, the existing computer can be easily made cordless by connecting the output terminal 7 to the keyboard terminal of the computer.

Further, since the input device has the conversion table, it is possible to input to the computer using a general-purpose remote control device.

[0014]

As is apparent from the above description, according to the present invention, since the input device has the output terminal and the plurality of conversion tables, it can be easily connected to the existing computer, and the general-purpose remote control device is provided. Can be used as an input device for a computer.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an input device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional computer input device.

[Explanation of symbols]

 1 remote control transmitter 2 light receiving element 3 amplifier 4 control microcomputer 5 conversion table 6 buffer 7 output terminal 8 input device

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Mitsunori Ueda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A keyboard code for a computer using a receiving means for receiving a remote control signal, a plurality of conversion tables corresponding to a plurality of remote control formats, and an effective table among the plurality of conversion tables. An input device, comprising: a control means for converting, receiving a transmission code from a general-purpose remote control transmitter, and selecting a valid conversion table from a plurality of conversion tables to perform decoding.