Title:
PULSE SIGNAL OUTPUT CIRCUIT AND OUTPUT METHOD FOR PULSE SIGNAL
Document Type and Number:
Japanese Patent JP3769909
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To output a pulse signal having a frequency value which is not the cumulation value of '2' and to prevent inner constitution from becoming complicated by sequentially accumulating the frequency value in an addition circuit whenever a specified clock pulse signal is inputted and providing a flip flop outputting a carry signal.
SOLUTION: The flip flop 3 sequentially accumulates the frequency value which is digitized in the addition circuit 2 whenever the clock pulse signal having the frequency of 2n+1HZ is inputted. When the accumulated value is kept, '0' is carried to '1' at every (n+1) bits for the same number of times as the frequency value while 2n+1-pieces of clock pulse signals are inputted. A carry signal at the time of carrying becomes the pulse signal which is inputted to a frequency setting register 1 and which has the frequency value and the pules signal having the frequency value which is not the cumulation value of '2' can be outputted. Since the frequency value is added in the addition circuit 2, it is not unnecessary to read data from a memory and processing processes are reduced.
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Inventors:
Yoichi Tanaka
Sanshin Kazuhiro
Sanshin Kazuhiro
Application Number:
JP32876797A
Publication Date:
April 26, 2006
Filing Date:
November 28, 1997
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
H03K23/64; (IPC1-7): H03K23/64
Domestic Patent References:
| JP64012617A | ||||
| JP49007914A | ||||
| JP64012617A | ||||
| JP49007914A |
Attorney, Agent or Firm:
Junji Ando
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