Clock-controlled filtering arrangement

Details Clock-controlled filtering arrangement Clock-controlled filtering arrangement

1983-11-21

1986-02-04

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

328167, 381 13, 455306, 455307, H04H 500

Patent

active

045690723

ABSTRACT:
A clock-controlled filtering arrangement for suppressing a number of interference frequencies related to a clock frequency, which comprises a time-discrete comb filter included in a negative feedback loop for a selective negative feedback of the said interference frequencies, which time-discrete comb filter is connected to an output of a clock generator for controlling the frequency location of the pass ranges of the comb filter. In order to avoid on the one hand the introduction of quantizing noise and the use of additional circuits, such as A/D and D/A converters, and on the other hand the occurrence of error cumulation while maintaining an adequate interference suppression, the time-discrete comb filter is of the switched capacitor N-path filter type.

REFERENCES:
patent: 3943293 (1976-03-01), Bailey
patent: 4016410 (1977-04-01), Eggermont
patent: 4246441 (1981-01-01), Sugai et al.
patent: 4286318 (1981-08-01), Immink et al.
patent: 4314377 (1982-02-01), Kondo et al.
patent: 4392068 (1983-07-01), Welles, II
patent: 4419541 (1983-12-01), Kishi et al.
patent: 4420815 (1983-12-01), Francis
patent: 4456990 (1984-06-01), Fisher et al.

Affiliated with

Also associated with

Rating

Clock-controlled filtering arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clock-controlled filtering arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock-controlled filtering arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2345462