Dynamic magnetic information storage or retrieval – Recording for changing duration – frequency or redundant...
Patent
1977-05-20
1979-06-05
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
Recording for changing duration, frequency or redundant...
360 6, 360 741, G11B 500
Patent
active
041575717
ABSTRACT:
Apparatus under control of an operator for selectively displaying signals stored on a magnetic tape. The tape is normally first played back at a high speed, with the reproduced signal displayed at high speed to permit the operator to determine which parts of the tape to view at real-time speed. In the real-time viewing mode, a segment of the tape is played again at high speed to provide a better quality signal; the signal from the segment is converted to digital form and stored in a memory for use in creating a real-time display. The operator then can view the display of the stored signal in a variety of ways: stationary, advancing at real-time speed, or in reverse at real-time speed. The length of the segment stored is relatively short to minimize the size of the memory. After a segment is played back, the tape is brought to a stop and then moved in the opposite direction to position it for playing back the next segment.
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"A Miniature 4--Channel Cassette Recorder for Physiological and Other Variables"--McKinnon, May 1974.
Canney Vincent P.
Del Mar Avionics
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