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Method and apparatus for detecting a desired MTS signal in a television receiver

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1 Author(s)
Motoyama, T. ; Philips Consumer Electron. Co., Knoxville, TN, USA

The noise spectrum around 15.7343 kHz in the composite baseband, mainly caused by a high degree of ICPM (incidental carrier-phase modulation) in the transmitter and transmission system, randomly mistriggers BTSC multichannel TV sound decoder circuitry. A detector circuit is described which will accurately identify the proper signal, thus eliminating false detection signals. This is done by examining the frequency, amplitude, and time duration of a suspected pilot or SAP carrier signal

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:35 ,  Issue: 3 )