Switching diplexer for single antenna input television receivers

Details Switching diplexer for single antenna input television receivers Switching diplexer for single antenna input television receivers

1982-07-26

1985-02-12

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581911, 455176, 455180, 455191, H04N 544

Patent

active

044994958

ABSTRACT:
The VHF and UHF tuners of a television receiver are coupled by a switchable diplexing circuit to a single antenna input terminal. The diplexing circuit includes a first electronic switching means responsive to a U/V bandswitch control signal connected between the UHF tuner and the antenna input terminal. A switchable low-pass filter is connected between the VHF tuner and the antenna input terminal, the switchable low-pass filter including a second electronic switching means responsive to the U/V bandswitch control signal for causing the low-pass filter to exhibit a first low-pass frequency response having a cut-off frequency fc in the VHF mode and a second low-pass frequency responsive having a cut-off frequency less then fc in the UHF mode.

REFERENCES:
patent: 4118679 (1978-10-01), Hiday et al.
patent: 4326295 (1982-04-01), Matsumoto et al.
patent: 4379271 (1983-04-01), Lehmann
patent: 4404686 (1983-09-01), Moon

Affiliated with

Also associated with

Rating

Switching diplexer for single antenna input television receivers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching diplexer for single antenna input television receivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching diplexer for single antenna input television receivers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1392695