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Title: Charge transfer filtering device

Abstract: Charge transfer filtering device which comprises a recursive filter and a non-recursive filter. The two filters on separate semiconductor substrates have charge injection means 12, 10 receiving the input signal E for the non-recursive filter 2 and the output signal S, previously phase-displaced by 180.degree. by means 9, for the recursive filter 1. Means 15, 16, common to both filters, ensure the reading and summation of the charge quantities weighted by means P and 14 and then the supply of the output signal S.


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Inventors: Auzet, Christian (Paris, FR)
Picquendar, Jean-Edgar (Paris, FR)

Application Number: 081456
Filing Date: 1979-10-03
Publication_date: 1981-04-28
Assignee: Thomson-CSF (Paris, FR)
Primary Class(es): 333/165 333/166
Other Classes:
US Patent Ref:
4100513Jul, 1978Weckler307/221.
4145675Mar, 1979Picquendar333/165.

Other Refs:
Primary Examiner: Nussbaum, Marvin L.
Assistant Examiner:
Attorney: Plottel; Roland