Electronic filter device for the reception of TV signals

Details Electronic filter device for the reception of TV signals Electronic filter device for the reception of TV signals

2005-09-26

2009-06-02

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Converter is part of control loop

C368S068000, C368S095000, C348S731000, C348S554000, C455S260000

Reexamination Certificate

active

07541957

ABSTRACT:
An electronic filter device for the reception of TV-signals, comprising a plurality of frequency determining elements settable by means of an analog setting voltage, a memory (2) for storing digital values representative of the analog setting voltages and conversion circuitry (11-14) for converting the digital values into the analog setting voltages. The conversion circuitry comprises a first part (11-13) for generating a digitally modulated signal for each digital value, the digitally modulated signal having a modulated characteristic representative of the digital value, and a second part (14) for converting each of the digitally modulated signals into the analog setting voltages.

REFERENCES:
patent: 3529247 (1970-09-01), Nelson
patent: 4683553 (1987-07-01), Mollier
patent: 4945404 (1990-07-01), Miller
patent: 5337338 (1994-08-01), Sutton et al.
patent: 5481560 (1996-01-01), Potetz et al.
patent: 5764165 (1998-06-01), Buch
patent: 5774084 (1998-06-01), Brombaugh et al.
patent: 6172633 (2001-01-01), Rodgers et al.
patent: 6636727 (2003-10-01), Muschallik et al.
patent: 2 272 341 (1994-05-01), None
Patent Abstracts of Japan vol. 012, No. 492, Dec. 22, 1988, & JP 63 204159, Aug. 23, 1988.
Patent Abstracts of Japan, vol. 1995, No. 9, Oct. 31, 1995, & JP 07 147541, (Mitsubishi Electric Corp), Jun. 6, 1995.

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