Digital video tape recorder with time base correction of input video signals
AssigneeSony Corporation
InventorKeiji Kanota
Life of this patent
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Abstract
A digital video tape recorder for digitally recording and/or reproducing a video signal. An analog video signal is received and converted to a digital signal which is supplied to a time base corrector for correcting a time base error in the input video signal by writing the digital signal into a memory in response to a synchronizing signal derived from the input video signal and reading out the stored digital signal from the memory in response to a reference signal. The output signal of the timebase corrector is processed and recorded on a magnetic tape by a rotary head.
Claims1
A digital video tape recording and reproducing apparatus, comprising:
- analog-to-digital converter means for converting an input video signal into a corresponding digital video signal;
- time base corrector means for correcting a time base error in said input video signal including a memory, means for writing said digital video signal in said memory in response to a first synchronizing signal derived from said input video signal, means for generating a first reference signal and means for reading out a time base corrected digital video signal from said memory in response to said first reference signal;
- means for processing the time base corrected digital video signal read from said memory and for supplying a recordable time base corrected digital video signal;
- means including a rotary head for recording the recordable time base corrected digital video signal on a magnetic tape;
- means including said rotary head for reproducing the digital video signal recorded on said magnetic tape;
- means for writing said reproduced digital video signal in said memory in response to a second synchronizing signal derived from said reproduced digital video signal;
- means for generating a second reference signal;
- means for reading out the reproduced digital video signal from said memory as a time base corrected reproduced digital video signal in response to said second reference signal;
- and
- digital-to-analog converter means for converting the time base corrected reproduced digital video signal read from said memory into an analog output video signal.
Dependencies are inferred from the claim text.