Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Including memory
Patent
1991-12-30
1994-10-11
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Including memory
377 34, 377 38, 377 39, 377 55, H03K 2100
Patent
active
053553969
ABSTRACT:
A method and circuitry are provided for modularized single transition counting. A count signal is provided on a count line (436). A single transition count is modified in response to the count signal. The single transition count has a plurality of bits (418, 416) provided by at least one first module (404) and at least one second module (406). The first (404) and second (406) modules are alternately coupled in series to an input module (402) so that one (404) of the first and second modules has an input (460a, 466a) coupled to an output (420, 468) of the input module (402) and so that each additional one (406) of the first and second modules has an input (482a, 488a) coupled to an output (472a, 478a) of an associated one (404) of the second and first modules, respectively.
REFERENCES:
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patent: 4408336 (1983-10-01), Das Gupta
patent: 4780894 (1988-10-01), Watkins et al.
patent: 4974241 (1990-11-01), McClure et al.
patent: 5097491 (1992-03-01), Hall
patent: 5164968 (1992-11-01), Otto
Brady III W. James
Donaldson Richard L.
Heyman John S.
Texas Instruments Incorporated
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