Time independent controller for cassette changing apparatus
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United States of America Patent
Stats
-
May 31, 1983
Issued Date -
N/A
app pub date -
Sep 29, 1980
filing date -
Sep 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A time independent controller for a novel cassette changer is shown. A cassette changer including a plurality of limit switch inputs (210) and means for detecting occurrence of a failure during a change cycle. The total angular displacement of a driving motor is detected (422) and upon reaching a predetermined angle of displacement (437) a test for an appropriate input (418) is provided. In one disclosed embodiment a read only memory (465) determines the controller state (461-463). Apparatus (426, 427, 450) which is responsive only to the limit switch inputs closing in a pair wise proper sequence is also shown.
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