Title:
SIGNAL SWITCH CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2005/091498
Kind Code:
A1
Abstract:
An analog signal switch circuit having a switch for selecting a first or second analog output state, in response to the instruction of a switch instruction signal, to output the selected analog output state as an output signal, wherein if there occurs a change in the instruction of the instruction signal, a control signal generator generates a control signal for alternately and repetitively selecting the first and second analog output states for any desired time period starting from the occurrence of the change. Thus, the switch alternately and repetitively selects the first and second analog output states in accordance with the control signal when there occurs a change in the instruction of the instruction signal.
Inventors:
KOIZUMI YOSHIHIKO (JP)
YAMAMURA KEN (JP)
YAMAMURA KEN (JP)
Application Number:
PCT/JP2005/001720
Publication Date:
September 29, 2005
Filing Date:
February 04, 2005
Export Citation:
Assignee:
ASAHI CHEMICAL MICRO SYST (JP)
KOIZUMI YOSHIHIKO (JP)
YAMAMURA KEN (JP)
KOIZUMI YOSHIHIKO (JP)
YAMAMURA KEN (JP)
International Classes:
H03F1/00; H03F3/45; H03F3/72; H03G3/00; H03G3/34; H03K17/00; H03K17/693; (IPC1-7): H03G3/00; H03F1/00; H03K17/00; H03K17/693
Foreign References:
| JP2003032090A | 2003-01-31 | |||
| JPH05268021A | 1993-10-15 | |||
| JP2004504750A | 2004-02-12 | |||
| JPH05235644A | 1993-09-10 |
Attorney, Agent or Firm:
Mori, Tetsuya (Yusen Iwamotocho Bldg. 8th Floor 3-3,
Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, JP)
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