Dynamic magnetic information storage or retrieval – General processing of a digital signal – In specific code or form
Patent
1975-10-21
1976-12-07
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
In specific code or form
G11B 509
Patent
active
039966135
ABSTRACT:
The invention is described in the environment of a binary data magnetic recording and reproducing system and comprises a binary to non-consecutive zero code converter for encoding the input binary data into a non-consecutive zero code which, in turn, is recorded on the magnetic medium. In recording, a flux transition occurs for each ONE of the non-consecutive zero code. A bipolar peak detector detects the flux transitions and thus detects the presence of the recorded ONEs. The peak detected signals are utilized to continuously trigger a mono-stable multivibrator having a period whereby the multivibrator relaxes to its stable state in the absence of a ONE which denotes the presence of a ZERO. The peak detected signal and the output of the mono-stable multivibrator are utilized to synthesize a clock signal from the recorded non-consecutive zero data. The recorded data is applied to a non-consecutive zero code to binary converter which is synchronized by the data derived clock to recover the originally recorded binary information.
REFERENCES:
patent: 3226685 (1965-12-01), Potter et al.
patent: 3713123 (1973-01-01), Lipp
patent: 3750121 (1973-07-01), Lee
Cohn Martin
Lempel Abraham
Manning Kenzel P.
Canney Vincent P.
Cooper Albert B.
Sperry Rand Corporation
Terry Howard P.
LandOfFree
Data recording and transmission apparatus utilizing non-consecut does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data recording and transmission apparatus utilizing non-consecut, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data recording and transmission apparatus utilizing non-consecut will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-383103