Patent US5157560A successfully refreshed from Google Patents.
US5157560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data recording and reproducing device designed to reduce power consumption
Assignee: Toshiba Corp
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Filing: 1990-07-26
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Granted: 1992-10-20
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Expires: 2010-07-26
Abstract
Abstract A recording and reproducing apparatus having reduced power consumption, wherein a spindle motor drive is stopped during a seek operation while a voice coil motor is driven to move a magnetic head to a destination track on a recording medium. Upon the magnetic head reaching the destination track, the voice coil motor drive is stopped, and the spindle motor is driven.
Inventors
- 👤 Hiroyuki Kanda
- 👤 Masahiko Tsunoda
- 👤 Akitoshi Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:24
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02; G11B19/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
A data recording and reproducing apparatus comprising: a spindle motor for rotating a recording medium in accordance with a first driving current; spindle motor driving means for supplying the first driving current to the spindle motor; carriage means for mounting at least one head for recording data on and reproducing data from the recording medium; carriage moving means for moving the carriage means in accordance with a second driving current, such that the head is moved to a predetermined destination position over the recording medium; supply means for supplying the second driving current to the carriage moving means; and controlling means for stopping a supply of the first driving current to the spindle motor from the spindle motor driving means so as to stop a drive of the spindle motor during movement of the carriage means towards the predetermined destination position by the carriage moving means.
Claim 2
Dependent Claim
146 words
A data recording and reproducing apparatus comprising: a spindle motor for rotating a recording medium in accordance with a first driving current; spindle motor driving means for supplying the first driving current to the spindle motor; carriage means for mounting at least one head for recording data on and reproducing data from the recording medium; carriage moving means for moving the carriage means in accordance with a second driving current, such that the head is moved to a predetermined destination position over the recording medium; supply means for supplying the second driving current to the carriage moving means; and controlling means for stopping a supply of the first driving current to the spindle motor from the spindle motor driving means so as to stop a drive of the spindle motor during movement of the carriage means towards the predetermined destination position by the carriage moving means.
Claim 3
Dependent Claim
35 words
The apparatus according to claim 1, wherein the controlling means is adapted to stop supplying the first driving current to the spindle motor until the head reaches the predetermined destination position over the recording medium.
Claim 4
Dependent Claim
34 words
The apparatus according to claim 1, wherein the controlling means is adapted to activate the spindle motor to rotate the recording medium before the head reaches the predetermined destination position over the recording medium.
Claim 5
Dependent Claim
25 words
The apparatus according to claim 3, wherein the controlling means is adapted to activate the spindle motor during a deceleration period of the carriage means.
Claim 6
Dependent Claim
104 words
A data recording and reproducing apparatus comprising: a spindle motor for rotating a recording medium; a spindle motor driving means for driving the spindle motor to rotate the recording medium; carriage means for mounting at least one head for recording data on and reproducing data from the recording medium; carriage moving means for moving the carriage means, to move the head to a predetermined destination position over the recording medium; and controlling means for causing the spindle motor driving means to stop a drive of the spindle motor during movement of the carriage means towards the predetermined destination position by the carriage moving means.
Claim 7
Dependent Claim
104 words
A data recording and reproducing apparatus comprising: a spindle motor for rotating a recording medium; a spindle motor driving means for driving the spindle motor to rotate the recording medium; carriage means for mounting at least one head for recording data on and reproducing data from the recording medium; carriage moving means for moving the carriage means, to move the head to a predetermined destination position over the recording medium; and controlling means for causing the spindle motor driving means to stop a drive of the spindle motor during movement of the carriage means towards the predetermined destination position by the carriage moving means.
Claim 8
Dependent Claim
31 words
The apparatus according to claim 5, wherein the controlling means is adapted to stop the spindle motor driving means until the head reaches the predetermined destination position over the recording medium.
Claim 9
Dependent Claim
34 words
The apparatus according to claim 5, wherein the controlling means is adapted to activate the spindle motor to rotate the recording medium before the head reaches the predetermined destination position over the recording medium.
Claim 10
Dependent Claim
25 words
The apparatus according to claim 7, wherein the controlling means is adapted to activate the spindle motor during a deceleration period of the carriage means.
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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) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |