Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent
1998-08-21
2000-03-21
Wambach, Margaret R.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
327115, 327117, 327299, H03K 2100
Patent
active
060410930
ABSTRACT:
A variable frequency dividing circuit adjusts the frequency dividing ratio by a non integer. The variable frequency dividing circuit includes a sequence storing part for storing an N-bit sequence data to output the N bits of the sequence data in parallel. The variable frequency dividing circuit also includes a sequence generator for receiving the N-bit sequence data from the sequence storing pan to generate a sequence control signal and a sequence control signal converter for converting the sequence control signal according to a frequency variation request to generate the converted sequence control signal. The variable frequency dividing circuit further includes a frequency divider for dividing a clock signal frequency according to the converted sequence control signal outputted from the sequence control signal converter and a clock signal generator for producing a clock waveform in accordance with the divided clock signal frequency.
REFERENCES:
patent: 4383303 (1983-05-01), Hoffman
patent: 4393301 (1983-07-01), Svendsen
patent: 5091699 (1992-02-01), Erickson et al.
patent: 5384816 (1995-01-01), Prysby et al.
patent: 5389826 (1995-02-01), Sonobe
patent: 5469485 (1995-11-01), Ferrant
LG Semicon Co. Ltd.
Wambach Margaret R.
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