Muting apparatus for a compressed audio/video signal receiver

Details Muting apparatus for a compressed audio/video signal receiver Muting apparatus for a compressed audio/video signal receiver

H - Electricity

04

N

H04N 5/60 (2006.01) H04N 5/04 (2006.01) H04N 5/44 (2006.01) H04N 7/52 (2006.01)

Patent

CA 2147013

A compressed audio/video, A/V, receiver provides A/V component timing reference signals (PTS's) coincident with reproduction of associated decompressed component signals. Synchronization apparatus generates a function of the difference of occurring component audio and video PTS's. This function, which is indicative of relative audio and video synchronization, is compared with a predetermined threshold value, and a mute control signal is generated when the threshold is exceeded. Muting circuitry, responsive to the control signal disables audio reproduction when the reproduced audio and video component signal timing deviate from mutual synchronization.

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