Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent
1996-05-29
1998-05-19
Wambach, Margaret Rose
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
377116, H03K 2100, H03K 2116
Patent
active
057546150
ABSTRACT:
This invention relates to a programmable frequency divider that includes a plurality of flip-flops that are clocked at a frequency to be divided. The plurality of flip-flops is operatively arranged to allow the connection in a ring of a predetermined number of them, selected according to a desired frequency division ratio. In one embodiment, the smallest selectable ring includes at least two successive flip-flops that are initialized to a first state, immediately followed by at least two successive flip-flops that are initialized to the opposite state.
REFERENCES:
patent: 4951303 (1990-08-01), Larson
patent: 5077764 (1991-12-01), Yamashita
JP-A-56 107636 (Tateshi Denki K.K.).
SGS-Thomson Microelectronics S.A.
Wambach Margaret Rose
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