Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Reexamination Certificate
2007-09-11
2007-09-11
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
C327S552000
Reexamination Certificate
active
11270394
ABSTRACT:
A trap filter comprises a delay circuit made up of switched capacitors for delaying an input signal and outputting a delay signal, and an adding circuit for adding the input signal and the delay signal.
REFERENCES:
patent: 5012143 (1991-04-01), Boudewijns
patent: 5453710 (1995-09-01), Gilbert et al.
patent: 6040727 (2000-03-01), Struck et al.
patent: 6658053 (2003-12-01), Aiello et al.
patent: 6891809 (2005-05-01), Ciccone et al.
patent: 9-98066 (1997-04-01), None
English Patent Abstract of JP9098066 from esp@cenet, published Apr. 8, 1997, 1 page.
Matsui Hiroshi
Onaya Masato
Le Dinh T.
Osha & Liang LLP
Sanyo Electric Co,. Ltd.
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