Phase synchronizing loop apparatus for digital audio signals

Details Phase synchronizing loop apparatus for digital audio signals Phase synchronizing loop apparatus for digital audio signals

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.

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