Digital phase lock loop circuit

Details Digital phase lock loop circuit Digital phase lock loop circuit

1983-09-20

1986-10-14

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

375120, 307514, 307262, 331 1A, H03L 708

Patent

active

046176799

ABSTRACT:
A digital phase lock loop (PLL) circuit adaptable to a hard disk drive. The PLL operable at a high speed comprises a pulse shaper for subjecting raw data pulses from the disk drive to waveform-shaping, a phase comparator for producing a phase control pulse on the basis of the relative positions of a delayed reference clock (VCLK) pulse and each of said waveform-shaped data pulses from the shaper, and a phase shifter for generating the VCLK pulse in response to the phase control pulse.

REFERENCES:
patent: 3961138 (1976-06-01), Fellinger
patent: 4029905 (1977-06-01), Abraham
patent: 4151485 (1979-04-01), LaFratta
patent: 4189622 (1980-02-01), Foshee
patent: 4218771 (1980-08-01), Hogge, Jr.
patent: 4302831 (1981-11-01), Zemanek
patent: 4386323 (1983-05-01), Jansen

Affiliated with

Also associated with

Rating

Digital phase lock loop circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital phase lock loop circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital phase lock loop circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1344492