H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/73
H04B 1/16 (2006.01) H04H 5/00 (2006.01)
Patent
CA 1259661
AM STEREO SIGNAL DECODER ABSTRACT OF THE DISCLOSURE A simplified stereo signal decoder is disclosed for use in an AM stereo receiver which receives composite AM stereo broadcast signals comprising a radio frequency carrier wave having amplitude modulation representing stereo sum (L+R) information and phase modulation representing stereo difference (L-R) information. The decoder makes novel use of a common, commercially available integrated circuit (IC) that normally is used as a tone detector or a frequency-modulation (FM) detector. The decoder provides synchronous detection of the (L-R) information, combined two-mode phase-locked loop (PLL) recovery of the carrier component and enabling of the (L-R) signal output, and delayed enabling of the (L-R) signal output for a "stereo bloom" effect. The decoder is particularly useful for decoding independent sideband (ISB) AM stereo broadcast signals.
465133
Johnson Douglas S. Q.c.
Kahn Leonard R.
LandOfFree
Am stereo signal decoder 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 stereo signal decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Am stereo signal decoder will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1288325