Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-01-20
1999-09-21
Kostak, Victor R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
348495, 348526, H04N 700
Patent
active
059556188
ABSTRACT:
A field identification signal generating circuit for a receiver for receiving a high-definition signal, and a method therefor. According to the method, a first correlation value is calculated, between the high-definition signal and a first reference signal the same as a first known signal. A timing control signal, synchronized with a second known signal whose phase is alternately inverted in every field, is output when the first correlation value is greater than or equal to a predetermined value. A second correlation value is calculated, between the high-definition signal and a second reference signal the same as the second known signal. Information on the polarity of the second correlation value is output. A field identification signal is generated on the basis of the polarity information on the second correlation value which is synchronized with the timing control signal. Therefore, the field identification signal generating circuit can be realized with simple hardware.
REFERENCES:
patent: 5598220 (1997-01-01), Citta et al.
Kostak Victor R.
Samsung Electronics Co,. Ltd.
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