Waveform analyzer for separating an eight field sequence of a PA

Details Waveform analyzer for separating an eight field sequence of a PA Waveform analyzer for separating an eight field sequence of a PA

1994-09-08

1996-07-23

Metjahic, Safet

Television

Synchronization

Phase locking regenerated subcarrier to color burst

348509, 348527, H04N 9455, H04N 9465

Patent

active

055394728

ABSTRACT:
An input signal is inputted to an A/D converter through an amplifier and is converted into a digital input signal. A vertical synchronizing pulse and a horizontal synchronizing pulse are taken out of the output signal of the amplifier by means of a TV synchronizing separator and inputted to a trigger gate and selector circuit. A delay timer and a timing control circuit are operated by a selected synchronizing pulse, and the data applied with A/D conversion are stored in a memory in accordance with a set delay time and sampling synchronization. The stored data are read by means of a CPU circuit. The state of a burst signal is decided by the CPU circuit, and separation of eight fields is performed by combining that state with a set state of the TV synchronizing separator.

REFERENCES:
patent: 4337477 (1982-06-01), Sagishima et al.
patent: 5068717 (1991-11-01), Jenison

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