Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1993-03-25
1998-10-06
Chevalier, Robert
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
348723, H04N 591, H04N 538
Patent
active
058190007
ABSTRACT:
At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data stream respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability.
REFERENCES:
patent: 5038219 (1991-08-01), Yamashita et al.
patent: 5164963 (1992-11-01), Lawrence et al.
patent: 5267021 (1993-11-01), Ramchandran et al.
patent: 5282019 (1994-01-01), Basile et al.
patent: 5311547 (1994-05-01), Wei
patent: 5481412 (1996-01-01), Bamair et al.
Chevalier Robert
Matsushita Electric - Industrial Co., Ltd.
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