Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent
1998-11-18
2000-06-06
Wambach, Margaret R.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
327202, H03K 3289
Patent
active
060728507
ABSTRACT:
There is disclosed a frequency divider that operates at an improved operating speed and provides frequency division given with a frequency division ratio of N, where N is an odd number. The frequency divider comprises first, second, and third stages of D-type flip-flops. The first stage selects either the output from the second stage or the output from the third stage according to the logic level of the output from the third stage. Delay is eliminated from between the first and third stages and from between the first and second stages. Consequently, the operating frequency can be enhanced.
REFERENCES:
patent: 4703495 (1987-10-01), Bereznak
patent: 5172400 (1992-12-01), Maemura
Nippon Precision Circuits Inc.
Wambach Margaret R.
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