Elastic surface wave filter for color television receiver

Details Elastic surface wave filter for color television receiver Elastic surface wave filter for color television receiver

1977-08-16

1980-07-08

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 9535

Patent

active

042120292

ABSTRACT:
It has been known that a sound trap or band pass amplifier makes the group delay characteristic of a chromaticity signal component non-uniform. The present invention provides an elastic surface wave filter whose amplitude characteristic is so determined as to be adapted for a video intermediate frequency amplifier and whose group delay characteristic is so determined that the chromaticity signal component in a color composite video signal from a tuner advances further in delay time on the high frequency side than on the low frequency side in order to compensate that non-uniformity of the group delay characteristic from which the chromaticity signal component suffers.

REFERENCES:
patent: 2906866 (1959-09-01), Thompson
patent: 3726990 (1973-04-01), Adler et al.
patent: 4062044 (1977-12-01), Hanma et al.
"Case History of a Surface-Wave TV IF Filter For Color Television Receivers" Proceedings of the IEEE, vol. 64, No. 5, May 1976: Adler et al. pp. 671-676.
Proceedings of the IEEE, vol. 64, No. 5, May 1976; A Television IF Acoustic Surface Wave Filter on Bismuth Silicon Oxide, Parker et al.
IEEE Transactions on Microwave Theory & Technique, vol. MTT 21, No. 4 Apr. 1973 Impulse Model Design of Acoustic Surface Wave Filters, Hartmann et al.

Affiliated with

Also associated with

Rating

Elastic surface wave filter for color television receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elastic surface wave filter for color television receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastic surface wave filter for color television receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-562805