Audio bandpass filter adaptive to differing television standards

Details Audio bandpass filter adaptive to differing television standards Audio bandpass filter adaptive to differing television standards

1992-03-25

1993-09-07

Powell, Mark R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358196, 333215, 4551911, 455266, 4551913, H04N 560

Patent

active

052434311

ABSTRACT:
A filter equipment comprises a plurality of filters, which are connected in cascade or in parallel. Characteristics of each filter are controlled according to an applied current. Desired characteristics can be realized by a relatively simple circuit configuration. The filter is controlled to adapt to PAL or NTSC standards, for example.

REFERENCES:
patent: 4381489 (1983-04-01), Canning et al.
patent: 4480236 (1984-10-01), Harris
patent: 4651196 (1987-03-01), Harwood et al.
patent: 4688082 (1987-08-01), Kato
patent: 4724407 (1988-02-01), Miura et al.
patent: 4792993 (1988-12-01), Ma
patent: 4849721 (1989-06-01), Matsuura
patent: 4903332 (1990-02-01), Hansen
patent: 5095363 (1992-03-01), Zuffada et al.

Affiliated with

Also associated with

Rating

Audio bandpass filter adaptive to differing television standards does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Audio bandpass filter adaptive to differing television standards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audio bandpass filter adaptive to differing television standards will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-491849