JPH09190264A - Wireless data input system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the information security of a wireless data input system. SOLUTION: An intrinsic ID code and a security code are set in a wireless keyboard device 1. Data is code-converted by an encoding part 12 based on the security code and it is transmitted. When the wireless keyboard device 1 and a wireless data receiver 2 are set to be ID registration mode and the wireless keyboard device 1 is transmission-operated, the ID code and the security code are transmitted as registered data. The wireless data receiver 2 writes the received ID code and security code into a memory 26 and the wireless keyboard device 1 is registered. Then, ID data in received data is collated with registered ID data by an ID data collation part 24, and received data whose ID is not matched becomes invalid. Valid reception data is decoded by a decoding part 25 based on the security code and it is inputted to Q computer 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless data input system, and more particularly to a wireless data input system which improves information security.

[0002]

In constructing a wireless data input system for wirelessly transmitting data to a computer by making a keyboard device wireless, interference between a plurality of systems and leakage of data to a third party are prevented. There is a need.

Therefore, in order to secure the stability and information security of wireless data communication by associating the receiving side with a specific data transmitting device to prevent interference and preventing data leakage to other receiving devices. Therefore, a technical problem to be solved occurs, and an object of the present invention is to solve the above problem.

[0004]

DISCLOSURE OF THE INVENTION The present invention is proposed to achieve the above object, and in a wireless data input system including a wireless keyboard device and a wireless data receiver connected to a computer, Each of the wireless keyboard device and the wireless data receiver is provided with a memory for registering an ID code and a security code, and the wireless keyboard device is provided with an encoding unit for converting key data or pointing device data based on the security code. The data receiver is provided with an ID code collating unit and a decoding unit for decoding the data based on the security code, and a communication data format in which an ID code is added to key data or pointing device data It is intended to provide a wireless data input system to communicate at mat.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a wireless data input system, 1 is a wireless keyboard device and 2 is a wireless keyboard device.
Is a wireless data receiver and 3 is a computer.

The wireless keyboard device 1 comprises a key matrix circuit 4 operated by keys, a keyboard control section 5, a built-in pointing device 6 or a pointing device control section 7 for managing an external pointing device. The key data and pointing device data output from the keyboard control unit 5 and the pointing device control unit 7 are input to the communication control unit 8, and the communication control unit 8 outputs the transmission data to the transmitter 10 via the communication interface 9. Send. As the transmitter 10, an RF wireless transmitter or an infrared transmitter is used.

An ID code and a security code are written in the memory 11 of the communication control unit 8 of the wireless keyboard device 1, and the encoding unit 12 performs code conversion of key data and pointing device data based on the security code. The ID code is added to and transmitted.

FIG. 2 shows a transmission data format of the wireless keyboard device 1, which is composed of a header H, an ID code, a status code S, data D and a checksum C, and each block has a start bit (1 bit),
It is an 11-bit signal of data (8 bits), parity bit (1 bit), and stop bit (1 bit).

The key data D has a 1-byte length consisting of a 7-bit key code and a 1-bit key-on / off code, as shown in FIG. 9A, and the output data of the pointing device is shown in FIG. ), The length is 2 bytes.

The memory 13 of the keyboard controller 5 of the wireless keyboard device 1 shown in FIG. 1 stores the key codes of all keys, and the 7-bit key corresponding to the valid key read by scanning the key matrix circuit 4. An 8-bit code obtained by adding a 1-bit code indicating the ON / OFF change state of the key to the code is output to the communication control unit 8 as data D.

Further, the pointing device controller 7
Monitors the status of the built-in pointing device 6,
2-byte data corresponding to the output of the built-in pointing device 6 is output to the communication control unit 8.

The communication control section 8 performs code conversion on the input data based on the security code by the encoding section 12, adds an ID code to the code, and converts it to serial transmission data of a predetermined communication format by the communication interface 9. . The transmission data is modulated by the transmitter 10 and transmitted from an antenna or an infrared LED.

The receiver 21 of the wireless data receiver 2
The data received by is decoded by the communication interface 23 of the communication control unit 22 and input to the computer 3 via the connection cable.

The communication control unit 22 of the wireless data receiver 2 is provided with an ID code collating unit 24 and a decoding unit 25, and the ID code and the security code can be written in the memory 26 by a predetermined operation. .

When the wireless keyboard device 1 is associated with the wireless data receiver 2 in a one-to-one relationship, the function keys of the wireless keyboard device 1 and the wireless data receiver 2 are operated to enter the ID registration mode, and the wireless keyboard device 1 is transmitted. When operated, the data D in the data format shown in FIG.
The ID registration data in which the security code is arranged in the part is transmitted.

The wireless data receiver 2 receiving this ID registration data writes the received ID code and security code in the memory 26, and the ID code and security code of the wireless keyboard device 1 are registered. After that, the ID data collating unit 24 collates the ID data in the received data with the registered ID data, invalidates the received data of the ID code that does not match the registered ID code, and the valid received data is decoded by the decoding unit 25 based on the security code. And is input to the computer 3.

The present invention is not limited to the above-described embodiment, and various modifications can be made to the hardware configuration of the transmitting / receiving device, and it goes without saying that the present invention extends to those modifications.

[0018]

As described above, the wireless data input system of the present invention registers the ID code and the security code of a specific wireless keyboard device in the wireless data receiver so that the wireless data receiver and the wireless keyboard device are in one-to-one correspondence. Since it is possible to comply with the above, it is possible to prevent interference between a plurality of systems of the same model and wiretapping of data by a third party, and ensure the stability of wireless data communication and information security.

[Brief description of the drawings]

FIG. 1 is a block diagram of a wireless data entry system.

FIG. 2 shows a transmission data format of a wireless keyboard device, (a) is an explanatory diagram of a transmission data format of key data, and (b) is an explanatory diagram of a transmission data format of pointing device data.

[Explanation of symbols]

 1 wireless keyboard 2 wireless data receiver 3 computer 4 key matrix circuit 5 keyboard control unit 6 built-in pointing device 7 pointing device control unit 8 communication control unit 9 communication interface 10 transmitter 11, 13 memory 12 encoding unit 21 receiver 22 communication control unit 23 Communication Interface 24 ID Code Matching Section 25 Decoding Section 26 Memory H Header ID ID Code S Status Code D Data C Checksum

Claims (1)

[Claims] 1. A wireless data input system comprising a wireless keyboard device and a wireless data receiver connected to a computer, wherein an ID code and a security code are registered in each of the wireless keyboard device and the wireless data receiver. A wireless keyboard device provided with an encoding unit for converting key data or pointing device data based on the security code; and a wireless data receiver with an ID code collation unit.
A wireless data input system, wherein a decoding unit for decoding data based on the security code is provided and communication is performed in a communication data format in which an ID code is added to key data or pointing device data.