Recorders – Record receiver deforming
Patent
1993-07-07
1994-05-10
Groody, James J.
Recorders
Record receiver deforming
H04N 5213
Patent
active
053113152
ABSTRACT:
In a ghost detector, synchronous detection is performed on a received video signal to provide a detected signal which is then converted to a band-limited signal having a predetermined bandwidth, a scanning synchronous component signal is extracted from the detected signal to provide a switching control signal for a ghost component detecting period on the basis of the synchronous component signal, and the band-limited signal is switched in response to the switching control signal so as to provide a switching signal. Then, the bandwidth of the switching signal is broadened to provide a time-compressed processing signal by a write/read operation for the switching signal on the basis of a predetermined control signal, time reversal on the processing signal is performed in an order reverse to the order of writing/reading the processing signal to provide a time-reversed signal, the processing signal is delayed by the period of the time reversal to provide a delay signal, the time-reversed signal and the delay signal are amplitude modulated by a predetermined carrier component signal to produce associated amplitude modulated signals, and a correlation signal that contains a significant waveform representing a ghost component of the received video signal is obtained.
Clarion Co. Ltd.
Cohen Cheryl
Groody James J.
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