Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Locking or latching of cabinet or components within cabinet
Reexamination Certificate
2005-03-15
2005-03-15
Chen, Tianjie (Department: 2652)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Locking or latching of cabinet or components within cabinet
Reexamination Certificate
active
06868548
ABSTRACT:
This invention relates to a optical storage carrier player cover-locking mechanism and method, which provides a optical storage carrier player cover that can actuate a locked state to prevent a optical storage carrier from rotating as cover is being lifted up and a lifting-up state for putting or removing a CD. This CD cover arranges: a driving element that connects to the CD driving apparatus and makes it rotate, a controller that adjusts rotation speed of the driving element, and a switch that can touches off the controller to proceed a controlled motion with predetermined rotation speed. By touching off the switch, the controller can detect the rotation speed of the driving element. By comparing the detected rotation speed with a predetermined speed in the controller, when rotation speed is higher than the predetermined speed, the controller generates a signal to the driving element to reduce the rotation speed of motor. And when rotation speed is lower than the predetermined speed, a signal is generated to actuate a cover-lifting motion to the CD cover that is then in an open state.
REFERENCES:
patent: 3593327 (1971-07-01), Shill
patent: 3684295 (1972-08-01), Strain et al.
patent: 3938185 (1976-02-01), Ito
patent: 4439850 (1984-03-01), Takahara et al.
patent: 5267105 (1993-11-01), Morikawa et al.
Benq Corporation
Chen Tianjie
Troxell Law Office PLLC
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