Patent US4893293A successfully refreshed from Google Patents.
US4893293A
Expired / Lapsed
US
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Method for operating multidisk player
Assignee: Pioneer Corp
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Filing: 1988-12-21
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Granted: 1990-01-09
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Expires: 2008-12-21
Abstract
Abstract A method for operating a disk player in which playing can be continued, even if the selected disk cannot be played for one reason or the other and in with which damage to disks, such as may be caused by vibration in a vehicle-based disk player system, is effectively prevented. When the presence of a magazine set in the disk player is initially detected, trays from the magazine are conveyed one by one to a playing position. When no disk is detected on the trays thus conveyed, the respective magazine is ejected.
Inventors
- 👤 Fumio Endo
- 👤 Toshiyuki Kimura
- 👤 Yoshio Aoyagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:23
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/22; G11B17/228; G11B19/00; G11B19/02; G11B19/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A method for detecting the presence or absence of a disk in at least one of plural trays in a magazine set into a disk player, comprising the steps of: detecting when said magazine has been set in said disk player; conveying said trays one at a time from said magazine to a playing position in response to detection of said magazine in said detection step; detecting for each tray thus conveyed whether or not a disk is on said tray; and ejecting said magazine when no disk is detected.
Claim 2
Independent Claim
90 words
A method for detecting the presence or absence of a disk in at least one of plural trays in a magazine set into a disk player, comprising the steps of: detecting when said magazine has been set in said disk player; conveying said trays one at a time from said magazine to a playing position in response to detection of said magazine in said detection step; detecting for each tray thus conveyed whether or not a disk is on said tray; and ejecting said magazine when no disk is detected.
Claim 3
Dependent Claim
64 words
A disk player for playing disks contained in a magazine which holds a plurality of said disks, said disk player comprising: detecting means for detecting whether said magazine contains a disk and for providing an output when no disks are contained within said magazine; and ejecting means responsive to said output from said detecting means for automatically ejecting said magazine from said disk player.
Claim 4
Dependent Claim
64 words
A disk player for playing disks contained in a magazine which holds a plurality of said disks, said disk player comprising: detecting means for detecting whether said magazine contains a disk and for providing an output when no disks are contained within said magazine; and ejecting means responsive to said output from said detecting means for automatically ejecting said magazine from said disk player.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |