Patent US680577A successfully refreshed from Google Patents.
Patent US4899328A successfully refreshed from Google Patents.
US4899328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data reproducing apparatus and method for locking a reproducing head
Assignee: Toshiba Corp
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Filing: 1987-06-03
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Granted: 1990-02-06
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Expires: 2007-06-03
Abstract
Abstract An apparatus for reproducing data from a data disc having a reproducing head opposite the data disc for processing data from the data disc. The apparatus includes a moving mechanism for moving the reproducing head between two radially separated positions along the radial direction of the data disc, and a locking device for automatically locking the reproducing head at one of the two positions for preventing movement of the reproducing head.
Inventors
- 👤 Masaru Ishii
- 👤 Kazuharu Odawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:09
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
An apparatus for reproducing data form a data storage medium, comprising: head means, disposed opposite the data storage medium, for processing data from the data storage medium, said head means including a catching portion integrally formed thereon; means for moving the head means and said integral catching portion between first and second spaced positions along a radial direction of the data storage medium; lock means, having a hook member, for engaging with the catching portion of the head means, said hook member being configured to securely mate with said catching portion thereby preventing movement of the head means; means for manually inputting a start command signal to the moving means for initiating movement of said head means; and means for releasing the engaging state of the lock means in response to the start command signal from the start command signal input means.
Claim 2
Independent Claim
142 words
An apparatus for reproducing data form a data storage medium, comprising: head means, disposed opposite the data storage medium, for processing data from the data storage medium, said head means including a catching portion integrally formed thereon; means for moving the head means and said integral catching portion between first and second spaced positions along a radial direction of the data storage medium; lock means, having a hook member, for engaging with the catching portion of the head means, said hook member being configured to securely mate with said catching portion thereby preventing movement of the head means; means for manually inputting a start command signal to the moving means for initiating movement of said head means; and means for releasing the engaging state of the lock means in response to the start command signal from the start command signal input means.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 wherein said hook member of said lock means is movably mounted at said first spaced position for engaging with the catching portion of the head means.
Claim 4
Dependent Claim
24 words
The apparatus of claim 2 wherein the lock means further includes a solenoid having a plunger, said plunger being linked to the hook member.
Claim 5
Dependent Claim
47 words
The apparatus of claim 1 further comprising means for manually inputting an end command signal to the moving means for stopping movement of the head means, and means for actuating the lock means in response to the end command signal from the end command signal input means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |