Dynamic information storage or retrieval – Dynamic mechanism subsystem – Access of multiple storage elements
Patent
1999-01-07
2000-08-29
Cao, Allen T.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Access of multiple storage elements
G11B 1704
Patent
active
061118486
ABSTRACT:
A compact disc storage and retrieval system is arranged to selectively push forward a single, selected compact disc from within a plurality of compact disc storage slots located within a case. Each compact disc storage slot is provided with a spring loaded push rod which, when actuated, pushes a selected compact disc or compact disc case partially out of an ejection opening. Each push rod passes through an aperture in a longitudinal partition extending the length of the compact disc filer case. A coil spring is disposed about the push rod between the partition and the compact disc or compact disc case. Each push rod is provided with an annular detent channel about its outer circumference. In the normal position in which each compact disc is stored, the coil spring is compressed and a solenoid associated therewith has a latching fork that engages the detent channel in the push rod to hold it in the retracted position with the push rod spring depressed. Upon receipt of an electronic signal the solenoid latching fork is withdrawn, thus allowing the compressed coil spring to push the compact disc case outwardly from the longitudinal partition. This makes the selected compact disc visually identifiable and available for withdrawal from the compact disc filer. Each compact disc filer is provided with a microprocessor that performs the function of a digital matrix selection or routing system that triggers only the solenoid associated with the selected compact disc to eject it from the storage case. The signal to the solenoid is through the keyboard of a conventional, personal computer.
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Cao Allen T.
Thomas Charles H.
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