Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1994-09-28
1996-11-26
Psitos, A.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 71, G11B 1546
Patent
active
055791859
ABSTRACT:
An apparatus and process are disclosed for automatically changing the speed of a recording tape from a first speed to a second speed, based on a one-time determination of predicted time of changeover. The second speed is 1
of the first speed, where n is any real number greater than 1. A central processing unit determines the time of changeover at the start of the recording process, using inputs from a recording timer and a reel detector to determine the program time and the remaining tape time on a supply reel. When the program time initially exceeds the remaining tape time at the first speed, the system automatically predicts and then implements the changeover to the second speed, such that the first speed portion is maximized to take advantage of its superior signal-to-noise ratio.
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Liu Ta-Huang
Tsai Rong-Dzung
Industrial Technology Research Institute
Psitos A.
Wilson James T.
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