FM multiplex stereo demodulating circuit

Details FM multiplex stereo demodulating circuit FM multiplex stereo demodulating circuit

1976-08-24

1977-09-06

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

179 15BP, 179 15BT, 329111, 329112, 329145, 329167, H03D 300, H04H 500

Patent

active

040471160

ABSTRACT:
An FM multiplex stereo demodulating circuit for obtaining separated left and right channel signals from a composite signal containing a stereophonic signal and a pilot signal, wherein the pilot signal component in the composite signal to be applied to a multiplex demodulator is cancelled by an inverted pilot signal, thereby expanding the frequency range and decreasing the carrier leak. The inverted pilot signal is produced by a sub-carrier generating circuit comprising a phase locked loop circuit and a phase shifter.

REFERENCES:
patent: 3974453 (1976-08-01), Ohsawa
patent: 3980832 (1976-09-01), Nakamura et al.
patent: 4002991 (1977-01-01), Ogita

Affiliated with

Also associated with

Rating

FM multiplex stereo demodulating circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FM multiplex stereo demodulating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FM multiplex stereo demodulating circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2165181