Television picture special effects system using digital memory techniques
First Claim
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1. A special effects system for a television signal, said television signal including horizontal and vertical synchronizing signals, said system comprising:
- memory means responsive to a write-in address signal for storing said television signal;
means responsive to said horizontal and vertical synchronizing signals for producing said write-in address signal;
means for producing a read-out address signal, the stored television signal being read out in response to said readout address signal;
means responsive to a control signal for controlling at least one of said write-in and read-out address signals, said controlling means including means responsive to said control signal for producing a full control width signal representing the width of said control signal, means responsive to said full control width signal for producing a half control width signal representing a half of the width of said control signal, and means for adding said half control width signal to at least one of said address signals.
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Abstract
A television special effects system which stores a video signal, divides the stored video signal into portions and displays the portions of the video signal, shifted apart from each other, on the television screen.
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Citations
11 Claims
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1. A special effects system for a television signal, said television signal including horizontal and vertical synchronizing signals, said system comprising:
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memory means responsive to a write-in address signal for storing said television signal; means responsive to said horizontal and vertical synchronizing signals for producing said write-in address signal; means for producing a read-out address signal, the stored television signal being read out in response to said readout address signal; means responsive to a control signal for controlling at least one of said write-in and read-out address signals, said controlling means including means responsive to said control signal for producing a full control width signal representing the width of said control signal, means responsive to said full control width signal for producing a half control width signal representing a half of the width of said control signal, and means for adding said half control width signal to at least one of said address signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A special effects system for a television signal displayed on a television screen, the system comprising,
memory means for storing an input video signal, means for producing a write-in address signal and a read-out address signal, said write-in address signal specifying a location in the memory means to store the video signal and said read-out address signal specifying a location in the memory means from which to read-out the stored video signal, means responsive to an external control signal for controlling at least one of said address signals, said controlling means including means responsive to said control signal for producing a full control width signal representing the width of said control signal, means responsive to said full control width signal for producing a half control width signal representing a half of the width of said control signal, and means responsive to said controlling means for adding said half control width signal to at least one of said address signals for dividing into signal portions the signal read-out from said memory means and for displaying said portions on said television screen shifted apart from each other.
Specification