Impulse generating device, communication device, and a computer-readable recording medium recording an impulse control program thereon

• US 7,646,825 B2
• Filed: 04/14/2006
• Issued: 01/12/2010
• Est. Priority Date: 11/17/2005
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Fujii, Akira, Asai, Masafumi, Sekiguchi, Hidenori
• Primary Examiner(s): Wang; Ted M
• Application Number:
  US11/403,854
• Publication Number:
  US 20070110182A1
• Time in Patent Office: 1,369 Days
• Field of Search: 375/281, 375/295, 375/219, 375/260
• US Class Current: 375/281
• CPC Class Codes: H04B 1/71632 Signal aspects H04B1/7172 and H04B1/7176 take precedence
• CPC Class Codes: H04B 1/7174 Pulse generation in general H04L25/03834

Abstract

To realize variable control of the output value of impulses with a simple construction, the present device includes an impulse generating unit which generates impulses; and a control unit which controls an output value of impulses output from the impulse generating unit by changing an input signal that is input to the impulse generating unit for generating impulses.

Claims

1. An impulse generating device, comprising:

an impulse generating unit which generates impulses;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing an ON/OFF time of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit and the ON/OFF times of the input signal in association with each other,

said controlling unit changing the ON/OFF time of the input signal based on said table.

2. An impulse generating device as set forth in claim 1, wherein said control unit controls the output value of the impulses by changing voltage of the input signal.

3. An impulse generating device as set forth in claim 1, wherein said control unit is formed by an FPGA (Field Programmable Gate Array).

4. An impulse generating device comprising:

an impulse generating unit which generates impulses;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing voltage of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit and voltages of the input signal in association with each other,

said control unit changing the input signal based on said table.

5. An impulse generating device as set forth in claim 4, wherein said control unit controls the output value of the impulses by changing an on/of time of the input signal.

6. An impulse generating device comprising:

an impulse generating unit which generates impulses;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing an on/of time and voltage of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit, the ON/OFF times of the input signal, and voltages of the input signal in association with each other,

said control unit changing the input signal based on said table.

7. An impulse generating device comprising:

an impulse generating unit which generates impulses; and

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, wherein said impulse generating unit includes;

a step recovery diode for generating impulses; and

a changing unit which changes reverse voltage input to said step recovery diode at the time of switching from forward bias application to reverse bias application, according to an input signal changed by said control unit.

8. A communication device used in a radio communication system which performs radio communication by a UWB (Ultra WideBand)-impulse radio scheme, said device comprising:

an impulse generating unit which generates impulses used in the radio communication;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing an ON/OFF time of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit and the ON/OFF times of the input signal in association with each other,

said controlling unit changing the ON/OFF time of the input signal based on said table.

9. A communication device as set forth in claim 8, wherein said control unit controls the output value of the impulses by changing an on/of time and voltage of the input signal.

10. A communication device as set forth in claim 8, wherein said control unit is formed by an FPGA (Field Programmable Gate Array).

11. A communication device as set forth in claim 8, wherein said control unit controls the output value of the impulses by changing voltage of the input signal.

12. A communication device used in a radio communication system which performs radio communication by a UWB (Ultra WideBand)-impulse radio scheme, said device comprising:

an impulse generating unit which generates impulses used in the radio communication;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing voltage of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit and voltages of the input signal in association with each other,

said control unit changing the input signal based on said table.

13. A communication device used in a radio communication system which performs radio communication by a UWB (Ultra WideBand)-impulse radio scheme, said device comprising:

an impulse generating unit which generates impulses used in the radio communication;

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, said control unit controlling the output value of the impulses by changing an on/of time and voltage of the input signal; and

a table holding therein output values of the impulses generated by said impulse generating unit, the ON/OFF times of the input signal, and voltages of the input signal in association with each other,

said control unit changing the input signal based on said table.

14. A communication device used in a radio communication system which performs radio communication by a UWB (Ultra WideBand) impulse radio scheme, said device comprising:

an impulse generating unit which generates impulses used in the radio communication; and

a control unit which controls an output value of impulses output from said impulse generating unit by changing an input signal that is input to said impulse generating unit for generating impulses, wherein said impulse generating unit includes;

a step recovery diode for generating impulses; and

a changing unit which changes reverse voltage input to said step recovery diode at the time of switching from forward bias application to reverse bias application, according to an input signal changed by said control unit.