AM-FM Radio receiver for receiving AM-stereo signals

Details AM-FM Radio receiver for receiving AM-stereo signals AM-FM Radio receiver for receiving AM-stereo signals

1981-05-04

1983-10-04

Pellinen, A. D.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

329135, 329142, H04H 500

Patent

active

044080972

ABSTRACT:
An AM-FM receiver which uses the FM-demodulator for demodulating the phase modulated sidebands of an AM-stereo signal. Therefore, it has to operate as a FM-demodulator also at the AM-intermediate frequency which is achieved by means of a parallel resonant circuit tuned to the AM-intermediate frequency (455 KHz) and arranged in series with a parallel resonant circuit which is tuned to the FM-intermediate frequency (10.7 MHz). The FM-demodulator is followed by an integrating circuit which only becomes operative in the event of AM-reception and which forms a phase demodulator in conjunction with the FM-demodulator. The additional costs and efforts for the reception of AM-stereo signals is therefore extremely small. In addition to the components which are already required in an AM-FM radio receiver only a further parallel resonant circuit and an integrating circuit are required.

REFERENCES:
patent: 3311838 (1967-03-01), Danker
patent: 3919645 (1975-11-01), Ohsawa et al.
patent: 4160955 (1979-07-01), Sato
patent: 4201946 (1980-05-01), McFadyen

Affiliated with

Also associated with

Rating

AM-FM Radio receiver for receiving AM-stereo signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with AM-FM Radio receiver for receiving AM-stereo signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AM-FM Radio receiver for receiving AM-stereo signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-975451