CCD filter having comb-shaped characteristics

Details CCD filter having comb-shaped characteristics CCD filter having comb-shaped characteristics

1993-10-21

1994-12-27

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

257241, H03H 730, G11C 1928

Patent

active

053769066

ABSTRACT:
A CCD filter according to the present invention can provide good comb-shaped characteristics with no adjustments, and can be produced at low cost. The input section 15 of a first CCD 11 is constructed so that it can linearly reduce transferred charges when an input voltage increases. The input section 17 of a second CCD 12 is constructed so that it can linearly increase transferred charges when the input voltage increases. The transferred charges of the first and second CCDs 11 and 12 are added to each other by means of charge adder section 13, and the addition result is output from an output section 14.

REFERENCES:
patent: 4510522 (1985-04-01), Pritchard

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