Input system and input device

• US 20080291166A1
• Filed: 07/30/2008
• Published: 11/27/2008
• Est. Priority Date: 11/14/2000
• Status: Abandoned Application

• Current Assignee: Fujitsu Takamisawa Component Limited
• Original Assignee: Fujitsu Takamisawa Component Limited
• Inventors: Kurashima, Shigemi, Sasaki, Shinobu, Yanagi, Masahiro, Endo, Masaya, Endo, Norio
• Application Number:
  US12/219,934
• Publication Number:
  US 20080291166A1
• Time in Patent Office: Days
• US Class Current: 345/163
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

Abstract

An input system includes an information generation part which generates input information based on a given input operation, a transmission part which transmits signal generated by having a plurality of different carrier frequencies modulated with the input information, and a reception part which receives the transmitted signals and demodulates the signals into input information.

Claims

1. An input system, comprising:

an information generation part generating input information based on a given input operation;

a transmission part substantially simultaneously transmitting a first signal and a second signal through a wave direction unit, the first signal and the second signal being generated by having a plurality of different carrier frequencies modulated with the same input information; and

a reception part receiving the transmitted signals and demodulating the signals into the same input information.

2. The input system as claimed in claim 1, wherein the wave direction unit comprises a plurality of wave direction parts provided close to said transmission part so as to provide the first and second signals transmitted from said transmission part with directivity.

3. The input system as claimed in claim 2, wherein said wave direction parts are antennas.

4. The input system as claimed in claim 1, wherein said transmission part comprises a plurality of transmission circuits for transmitting the signals of the different carrier frequencies.

5. The input system as claimed in claim 1, wherein said transmission part comprises:

an output part which successively outputs the different carrier frequencies; and

a modulation part which has the different carrier frequencies modulated with the input information.

6. The input system as claimed in claim 4, wherein each of the transmission circuit comprises:

an output part which outputs a corresponding one of the different carrier frequencies; and

a modulation part which has the corresponding one of the different carrier frequencies modulated with the input information.

7. The input system as claimed in claim 1, wherein said reception part comprises a plurality of reception circuits for receiving the transmitted signals and demodulating the signals into the input information.

8. The input system as claimed in claim 1, further comprising a pad member including conductive wire.

9. The input system as claimed in claim 1, further comprising a conductive part,

wherein a user contacts said conductive part so that the signals transmitted from said transmission part are transmitted via said conductive part to the user.

10. The input system as claimed in claim 1, further comprising:

a conductive plate member; and

a conductive part, wherein said conductive part contacts said conductive plate member so that the signals transmitted from said transmission part are transmitted via said conductive part to said conductive plate member.

11. The input system as claimed in claim 1, further comprising a plurality of wave direction parts for receiving the signals transmitted from

said transmission part, said wave direction parts being provided on a side of said reception part.

19. The input system as claimed in claim 1, wherein said transmission part comprises a switching part that causes switching between the different carrier frequencies so that the different carrier frequencies are alternately modulated with the input information.

12. An input device, comprising:

an information generation part generating input information based on a given input operation; and

a transmission part substantially simultaneously transmitting a first signal and a second signal through a wave direction unit, the first signal and the second signal being generated by having a plurality of different carrier frequencies modulated with the same input information.

13. The input device as claimed in claim 12, wherein the wave direction unit comprises a plurality of wave direction parts provided close to said transmission part so as to provide the first and second signals transmitted from said transmission part with directivity.

14. The input device as claimed in claim 13, wherein said wave direction parts are antennas.

15. The input device as claimed in claim 12, wherein said transmission part comprises a plurality of transmission circuits for transmitting the signals of the different carrier frequencies.

16. The input device as claimed in claim 12, wherein said transmission part comprises:

an output part which successively outputs the different carrier frequencies; and

a modulation part which has the different carrier frequencies modulated with the input information

17. The input device as claimed in claim 15, wherein each of the transmission circuit comprises:

an output part which outputs a corresponding one of the different carrier frequencies; and

a modulation part which has the corresponding one of the different carrier frequencies modulated with the input information.

18. The input device as claimed in claim 12, further comprising a conductive part provided on a surface of the input device,

wherein a user contacts said conductive part so that the signals transmitted from said transmission part are transmitted via said conductive part to the user.

20. The input system as claimed in claim 12, wherein said transmission part comprises a switching part that causes switching between the different carrier frequencies so that the different carrier frequencies are alternately modulated with the input information.

21. An input device, comprising:

an information generation part generating input information based on an input operation; and

a transmission part substantially simultaneously transmitting the same input information by a plurality of carrier frequencies.

22. A mouse for a computer, comprising:

a first transmission circuit having a first carrier frequency modulated with input information from a control unit; and

a second transmission circuit having a second carrier frequency modulated with the same input information supplied from the same control unit.

23. A method for efficiently transmitting input information from a device, comprising:

contacting a conductive part of the device by a user of the device; and

transmitting the same input information from a first antenna, a second antenna, and the user.