Memory read/write organization for a television signal processor

Details Memory read/write organization for a television signal processor Memory read/write organization for a television signal processor

1976-12-30

1978-08-22

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 19, H04N 578, H04N 946

Patent

active

041092767

ABSTRACT:
In a television signal synchronizer having a coherent memory, it is necessary to modify the writing of data into memory or the reading of data out of memory in order to provide field conversion. In the described apparatus, the reading out of data is always done according to a non-variant sequence determined by the local (studio) reference timing signals. In a first embodiment the read address generator signals are modified so as to read out the stored video signal in accordance with the non-variant write in sequence. In a second embodiment the write address generator signals are modified so as to position the incoming video signal into memory so that it is located in the proper memory position for the non-variant read out sequence.

REFERENCES:
patent: 3564123 (1971-02-01), Pezirtoglov
patent: 3890638 (1975-06-01), Bargen
Stratton, "Reviewing Slow-Motion Disc Principles", Broadcast Engineering, Feb. 1969, pp. 14-18.

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