Automatic disc changer for retrieving a lowermost disc from a st

Details Automatic disc changer for retrieving a lowermost disc from a st Automatic disc changer for retrieving a lowermost disc from a st

1995-04-17

1997-06-03

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Access of multiple storage elements

369 36, 360 9806, G11B 1710, G11B 1720

Patent

active

056361998

ABSTRACT:
An automatic disc changer which includes a tray storage section for accommodating a stack of disc trays each having an opening defined in a support surface thereof on which a corresponding information carrier disc is placed. An information pick-up unit is disposed at a location adjoining the tray storage section and supported for movement up and down between elevated and lowered positions corresponding respectively to play and stand-by positions. A tray transport mechanism is provided for transporting a lowermost one of the stack of the disc trays within the tray storage section towards the stand-by position immediately above the information pick-up unit. Also, tray elevating mechanism carrying the information pick-up unit and operable to elevate the disc tray at the stand-by position towards the play position is located in the play section. A tray returning mechanism is provided for returning the disc tray at the play position back to the tray storage section and immediately above the stack of the disc trays remaining within the tray storage section.

REFERENCES:
patent: 4023207 (1977-05-01), Cook
patent: 4195321 (1980-03-01), Chelin et al.
patent: 4636888 (1987-01-01), Sidebottom
patent: 4646178 (1987-02-01), Garratt et al.
patent: 5123001 (1992-06-01), Nakamichi et al.
patent: 5177722 (1993-01-01), Nakamichi et al.
patent: 5197057 (1993-03-01), Iyama et al.

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