Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1981-12-17
1983-11-08
Stellar, George G.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 26, 371 1, G11B 543
Patent
active
044145870
ABSTRACT:
A plural channel playback system comprising magnetic recording tape movable past a reproducing transducer head having at least one transducing element for each track is shown together with skew detecting means. At least two of the tracks are recorded with digital data signals comprising equal length data words with a parity bit, with the parity bits being simultaneously recorded along the tracks. Parity bit lock-on circuits are responsive to outputs from two tracks, which lock-on circuits generate word clock pulses in synchronization with the recorded parity bit signals. A phase detector responsive to word clock pulses from the parity bit lock-on circuits produces an error signal output proportional to the phase difference between said word clock pulse inputs thereto, which error signal is related to skew. The azimuthal position of the reproducing head relative to the recording tape is adjusted either manually or automatically to minimize the error signal.
REFERENCES:
patent: 2751439 (1956-06-01), Burton
patent: 2937239 (1960-05-01), Garber, Jr. et al.
patent: 2938962 (1960-05-01), Konins et al.
patent: 3387295 (1968-06-01), DeMoss
patent: 3414816 (1968-12-01), Tobey et al.
patent: 3526726 (1970-09-01), Corbett et al.
patent: 4357702 (1982-11-01), Chase et al.
Brown Floyd A.
Burch Donald J.
Chadwick Joseph H.
Weaver Charles S.
Yarborough, Jr. John M.
Beckman Victor R.
SRI - International
Stellar George G.
LandOfFree
Skew sensing for digital tape playback does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Skew sensing for digital tape playback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Skew sensing for digital tape playback will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2011961