Interrupting the video if signal path during FM radio mode in a

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

358189, 358196, 358198, 4551891, 455315, H04N 550

Patent

active

051423707

ABSTRACT:
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner serves as the first conversion stage of a double conversion FM receiver, wherein the mixer of an FM radio integrated circuit serves as the second conversion stage. The receiver provides an on-screen display of the currently tuned FM channel number. Circuitry is provided for interrupting the path of signals from the tuner to the IF amplifier stage of the television receiver when the receiver is in FM radio signal reception mode, to prevent the FM radio signals from adversely affecting the television synchronizing signals during the display of the FM channel number.

REFERENCES:
patent: 2650265 (1953-08-01), Mountjoy
patent: 4272788 (1981-06-01), Ogita
patent: 4490743 (1984-12-01), Mycynek
patent: 4499602 (1985-02-01), Hermeling
patent: 4553264 (1985-11-01), Hasegawa
patent: 4581643 (1986-04-01), Carlson
patent: 4709407 (1987-11-01), Baba
patent: 4726072 (1988-02-01), Yamashita
patent: 4814874 (1989-03-01), Adachi
patent: 4970087 (1990-11-01), Rumreich
Page 2-1 of RCA/GE Color Television Service Data CTC156/157.
Page 2-3 of RCA/GE Color Television Supplemental Service Data CTC156/157-S1.
Article entitled TV Mulitchannel Sound-The BTSC System, by C. G. Eilers, published in IEEE Transactions on Consumer Electronics, Feb. 1985.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Interrupting the video if signal path during FM radio mode in a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interrupting the video if signal path during FM radio mode in a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interrupting the video if signal path during FM radio mode in a will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-389584

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.