Television – Synchronization – Locking of video or audio to reference timebase
Patent
1994-03-14
1996-05-21
Kostak, Victor R.
Television
Synchronization
Locking of video or audio to reference timebase
348512, 375362, 375376, H04N 505
Patent
active
055194443
ABSTRACT:
In a phase synchronizing loop apparatus for digital audio signals, a clock operation is controlled in accordance with a plurality of audio data formats, allowing a data transmission clock to be generated using a phase synchronizing loop. The apparatus includes an edge detector for detecting an edge of applied data, a clock generator for retaining the signal from the edge detector for a predetermined period of time to generate a clock signal, first and second phase synchronizing loops for detecting a phase difference between the clock signal and the oscillation output of a voltage controlled oscillator, a controller for generating a control signal in accordance with the audio data formats, and a display for discriminating a synchronization state and displaying an indication thereof.
REFERENCES:
patent: 5351092 (1995-09-01), Poimboeuf et al.
Ko Yong Chul
Yoon Jung Shik
Flynn Nathan J.
Hyundai Electronics Ind. Co. Ltd.
Kostak Victor R.
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