Method to synchronize encoding and decoding frequencies

Details Method to synchronize encoding and decoding frequencies Method to synchronize encoding and decoding frequencies

1996-04-01

1998-11-24

Lee, Richard

Television

Synchronization

348726, H04N 504

Patent

active

058414819

ABSTRACT:
An encoding and decoding frequency synchronizing method capable of synchronizing the frequency on the encoder side and that on the decoder side with a small scale configuration is to be provided. A write clock generator 4 generates a write clock synchronized with input video signals. An AD converter 3 converts the input video signals into digital video signals on the basis of the write clock. A frame synchronizer 5 writes the digital signals, and reads them on the basis of a processing clock from a clock generator 6, synchronized with the transmission clock. A high efficiency encoder 7 converts the digital video signals into encoded signals on the basis of the,processing clock. A modulator 9 modulates the encoded signals on the basis of the transmission clock. A clock generator 13 generates a demodulated processing clock on the basis of the transmission clock obtained by demodulation with a demodulator 11. A high efficiency decoder 14 decodes the demodulated encoded signals with the demodulated processing clock.

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