Playback apparatus

Details Playback apparatus Playback apparatus

2007-11-05

2009-12-29

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

C369S047270, C369S270100, C720S619000

Reexamination Certificate

active

07639572

ABSTRACT:
Disclosed herein is a disc playback apparatus with a built-in disc drive which performs hand-close process. The control unit60has the A/D input port P which is given the voltage of the terminal of the loading motor78, after voltage reduction by the dividing resistors R1and R2. It acquires the voltage applied to the A/D input port P at intervals of 20 ms if the disc tray10is in its completely ejected state and compares the acquired voltage with a predefined threshold value. If the acquired voltage is lower than the predefined threshold value, it clears the count, and if the acquired voltage is higher than the predefined value, it increments the count. If the count over 5, the control unit60delivers control signals to the driver circuit88, thereby driving the loading motor to retract the disc tray10.

REFERENCES:
patent: 6128263 (2000-10-01), Fujii et al.
patent: 7362666 (2008-04-01), Omori et al.
patent: 11-066703 (1999-03-01), None
patent: 2002-015502 (2002-01-01), None
patent: 2002-216412 (2002-08-01), None
Japan Notice of the reason for refusal, dated Aug. 27, 2008.

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