JPH0887818A - Cd-rom driving apparatus - Google Patents

Cd-rom driving apparatus

Info

Publication number
JPH0887818A
JPH0887818A JP22011194A JP22011194A JPH0887818A JP H0887818 A JPH0887818 A JP H0887818A JP 22011194 A JP22011194 A JP 22011194A JP 22011194 A JP22011194 A JP 22011194A JP H0887818 A JPH0887818 A JP H0887818A
Authority
JP
Japan
Prior art keywords
power source
rom
operation mode
detection signal
drive device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22011194A
Other languages
Japanese (ja)
Inventor
Hiromi Uchida
浩美 内田
Hiroshi Suzuki
宏 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP22011194A priority Critical patent/JPH0887818A/en
Publication of JPH0887818A publication Critical patent/JPH0887818A/en
Pending legal-status Critical Current

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  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE: To provide a CD-ROM driver which allows operating thereof with a performance optimal to a power source used. CONSTITUTION: A DC-ROM driver has a detection means 7 for a power source used to detect the type of a power source used and a CD-ROM control section 3 performs a control to change the performance of the CD-ROM driver based on a detection signal 8 obtained and notifies the present operating condition to the side of a personal computer. The CD-ROM control section 3 operates at a high performance during the use of an AC power source based on the detection signal 8 (high speed mode) and carries out a power saving operation during the use of a battery (low speed mode).

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、例えばノート型のパソ
コンに内蔵されるCD−ROMドライブ装置に関し、特
にパソコンの使用電源に応じて動作モードを変更する技
術に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD-ROM drive device incorporated in, for example, a notebook personal computer, and more particularly to a technique for changing an operation mode according to a power source used by the personal computer.

【0002】[0002]

【従来の技術】ノート型およびラップトップ型のパソコ
ンでは、AC電源又はバッテリーを用いて動作できよう
になっている。このようなタイプのパソコンに内蔵され
るCD−ROMドライブ装置はバッテリー駆動されるこ
とを考慮して、消費電力を抑えるために、転送レートや
アクセススピード等の性能を低速にして消費電力を少な
くしてある。
2. Description of the Related Art Notebook type and laptop type personal computers can be operated by using an AC power source or a battery. In consideration of the fact that the CD-ROM drive device built into such a personal computer is driven by a battery, in order to reduce the power consumption, the performance such as the transfer rate and the access speed is reduced to reduce the power consumption. There is.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、AC電
源使用時においても同一のCD−ROMドライブ装置を
利用するため、バッテリー駆動時を考慮した省電力型の
動作を行い転送レートやアクセススピード等の性能は低
いままCD−ROMドライブ装置が動作するので、CD
−ROMドライブの性能が十分に発揮されないという問
題があった。
However, since the same CD-ROM drive device is used even when the AC power source is used, the power saving type operation is performed in consideration of the battery drive and the performance such as the transfer rate and the access speed is improved. Since the CD-ROM drive operates at a low value, the CD
-There was a problem that the performance of the ROM drive was not fully exhibited.

【0004】本発明は、上記の問題点を解決するために
なされたもので、使用電源に最適な性能で動作するCD
−ROMドライブ装置を提供することを目的とする。
The present invention has been made to solve the above problems, and is a CD that operates with optimum performance for the power source used.
-To provide a ROM drive device.

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
めに本発明のCD−ROMドライブ装置は、パソコンに
使用されている電源種類を検知する使用電源検知手段を
有し、その検知信号に基づいてCD−ROM制御部がC
D−ROMドライブ装置の性能を変化させるように制御
することとした。また、現在の動作状況をパソコン側に
知らせる構成とした。
In order to achieve the above object, the CD-ROM drive device of the present invention has a used power source detection means for detecting the type of power source used in a personal computer, and the detected signal is used as a detection signal. Based on the CD-ROM controller,
It was decided to control so as to change the performance of the D-ROM drive device. In addition, it is configured to notify the current operating status to the personal computer side.

【0006】[0006]

【作用】使用電源検知手段がパソコンの使用電源を検知
し、CD−ROM制御部が検知信号に基づいて、AC電
源駆動時は高性能に動作(高速モード)し、バッテリー
駆動時は省電力動作(低速モード)を行う。
[Function] The power source detection means detects the power source used by the personal computer, and the CD-ROM control section operates based on the detection signal with high performance when the AC power source is driven (high speed mode), and power saving operation when the battery is driven. (Low speed mode).

【0007】従って、使用電源に最適な性能でCD−R
OMドライブ装置を動作させることができる。
Therefore, the CD-R has the optimum performance for the power source used.
The OM drive device can be operated.

【0008】[0008]

【実施例】図1は本発明の一実施例におけるCD−RO
Mドライブ装置の機能ブロック図である。図において、
1はAC電源、2はノートパソコンである。3はCD−
ROM制御部、4はCD−ROM機構部で、CD−RO
M制御部3とCD−ROM機構部4とでCD−ROMド
ライブ装置をなし、ノートパソコン2に内蔵されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a CD-RO in one embodiment of the present invention.
It is a functional block diagram of an M drive device. In the figure,
Reference numeral 1 is an AC power source and 2 is a notebook computer. 3 is CD-
The ROM control unit 4 is a CD-ROM mechanism unit, which is a CD-RO.
The M control unit 3 and the CD-ROM mechanism unit 4 form a CD-ROM drive device, which is built in the notebook computer 2.

【0009】5はノートパソコン2に内蔵されたバッテ
リー、6はAC電源1からノートパソコン2に必要なD
C電源に整流する電源部である。バッテリー5の駆動時
は、バッテリー5から電源部6を介してDC電源を安定
化して全装置へ供給し、AC電源1の駆動時は電源部6
によりDC電源に整流し安定化して、バッテリー5に充
電すると共に全装置へ供給する。
Reference numeral 5 denotes a battery built in the notebook computer 2, and 6 denotes D required for the notebook computer 2 from the AC power source 1.
It is a power supply unit that rectifies the C power. When the battery 5 is driven, the DC power is stabilized from the battery 5 through the power supply unit 6 and supplied to all devices, and when the AC power supply 1 is driven, the power supply unit 6 is supplied.
By this, the DC power is rectified and stabilized, and the battery 5 is charged and supplied to all devices.

【0010】7はノートパソコン2に使用される電源が
AC電源1かバッテリー5かを検知する使用電源検知手
段であり、8は検知された結果の検知信号でAC電源の
場合にオンとなる。
Reference numeral 7 is a used power source detecting means for detecting whether the power source used for the notebook computer 2 is the AC power source 1 or the battery 5, and 8 is a detection signal of the detection result, which is turned on when the AC power source is used.

【0011】9はCD−ROMドライブ装置の回転速度
及び動作モードを変化させるサーボ回路切替装置、10
はスピンドルモータ12の回転速度を制御するサーボ回
路、11はモータドライバ、12はスピンドルモータで
ある。
Reference numeral 9 is a servo circuit switching device for changing the rotation speed and operation mode of the CD-ROM drive device.
Is a servo circuit for controlling the rotation speed of the spindle motor 12, 11 is a motor driver, and 12 is a spindle motor.

【0012】本実施例の場合は、AC電源駆動時は高速
モードとなりディスク回転数は800〜2120rp
m,データの転送レート600バイト/s、またバッテ
リー駆動時は低速モードとなりディスク回転数は400
〜1060rpm,データの転送レート300バイト/
s、の動作モードでCD−ROMドライブ装置が動作す
る。
In the case of the present embodiment, when the AC power source is driven, the high speed mode is set and the disk rotation speed is 800 to 2120 rp.
m, data transfer rate 600 bytes / s, low speed mode when driven by battery, disk rotation speed is 400
-1060 rpm, data transfer rate 300 bytes /
The CD-ROM drive device operates in the operation mode s.

【0013】図2は本発明の一実施例における動作モー
ド設定のフローチャートである。まず、ノートパソコン
2の電源を投入する(S1)と、使用電源検知手段7が
ノートパソコン2の電源投入時の使用電源を調べる(S
2)。この時、AC電源1を使用していれば電源部6が
稼働して検知信号8がオンとなる。
FIG. 2 is a flow chart for setting the operation mode in one embodiment of the present invention. First, when the power of the notebook computer 2 is turned on (S1), the power source detecting means 7 checks the power source used when the notebook computer 2 is powered on (S1).
2). At this time, if the AC power supply 1 is used, the power supply unit 6 operates and the detection signal 8 is turned on.

【0014】この時、検知信号8に基づいてAC電源1
使用と判断し、高速モード動作を開始する(S3)。同
時にノートパソコン2に現行の動作モードを通知する信
号を発信する。即ち、サーボ回路切替装置9の高速モー
ド設定によりサーボ回路10はモータドライバ11を制
御して、スピンドルモータ12を高速で回転させ転送レ
ートを上昇させ、またアクセススピードを増加させる。
これにより、CD−ROMドライブ装置は高性能な動作
を行うようになる。
At this time, based on the detection signal 8, the AC power source 1
It is determined to be used, and the high speed mode operation is started (S3). At the same time, it sends a signal notifying the notebook computer 2 of the current operation mode. That is, the servo circuit 10 controls the motor driver 11 by the high speed mode setting of the servo circuit switching device 9 to rotate the spindle motor 12 at high speed to increase the transfer rate and increase the access speed.
As a result, the CD-ROM drive device can operate with high performance.

【0015】また、バッテリー5であれば、検知信号8
が発信されないので低速モード動作を開始する(S
4)。この時ノートパソコン2に現行の動作モードを通
知する信号を発信する。即ち、サーボ回路切替装置9は
サーボ回路10を低速モードで稼働させる設定を行う。
それによりCD−ROMドライブ装置は持てる性能をセ
ーブして、省電力状態での動作を行う。
If the battery 5 is used, the detection signal 8
Is not transmitted, the low speed mode operation is started (S
4). At this time, the notebook computer 2 sends a signal notifying the current operation mode. That is, the servo circuit switching device 9 sets the servo circuit 10 to operate in the low speed mode.
As a result, the CD-ROM drive device saves its performance and operates in a power saving state.

【0016】以下、この設定条件のもとに動作を継続
し、同時に検知信号8を監視する(S5)。変化がない
場合には現行動作モードを維持し、変化があればCD−
ROMドライブ装置がアクセス中か否かを判別する(S
6)。即ち、動作途中で電源が変更されると現在の動作
モードを維持してデータのアクセスが終了するのを待機
しなければならない。従って、アクセス中の時にはその
アクセス終了(S7)を待って、また、アクセス中でな
ければその時に使用電源の検知に戻る(S2)。
Thereafter, the operation is continued under these set conditions, and at the same time, the detection signal 8 is monitored (S5). If there is no change, the current operation mode is maintained, and if there is a change, CD-
It is determined whether or not the ROM drive device is being accessed (S
6). That is, if the power supply is changed during the operation, it is necessary to maintain the current operation mode and wait until the data access is completed. Therefore, when the access is in progress, the process waits for the end of the access (S7), and when the access is not in progress, the process returns to the detection of the power source used (S2).

【0017】即ち、AC電源1で使用中にバッテリー5
の使用に変更された場合は、電源が変更された時点で使
用電源検知手段7よりの検知信号8がオフになる。そこ
で、CD−ROMドライブ装置が動作中で、メディアに
アクセスを行っているときは、そのアクセスが終了した
後にサーボ回路切替装置9はサーボ回路10を低速モー
ドへと移行させる。こうして、高性能な高速モードから
省電力な低速モードでの動作になる。
That is, the battery 5 is used while the AC power source 1 is in use.
When the power supply is changed, the detection signal 8 from the used power supply detection means 7 is turned off. Therefore, when the CD-ROM drive is operating and accessing the medium, the servo circuit switching device 9 shifts the servo circuit 10 to the low speed mode after the access is completed. Thus, the operation is switched from the high-performance high-speed mode to the power-saving low-speed mode.

【0018】同様にして、バッテリー5で使用中にAC
電源1の使用に変更された場合は、電源が変更された時
点で使用電源検知手段7よりの検知信号8がオンにな
る。そこで、CD−ROMドライブ装置が動作中で、メ
ディアにアクセスを行っているときは、そのアクセスが
終了した後にサーボ回路切替装置9はサーボ回路10を
高速モードへと移行させる。こうして、省電力な低速モ
ードから高性能な高速モードでの動作になる。
Similarly, when the battery 5 is in use, the AC
When the power source 1 is changed to use, the detection signal 8 from the used power source detecting means 7 is turned on when the power source is changed. Therefore, when the CD-ROM drive device is operating and accessing the medium, the servo circuit switching device 9 shifts the servo circuit 10 to the high speed mode after the access is completed. In this way, the operation is switched from the power-saving low-speed mode to the high-performance high-speed mode.

【0019】なお、本実施例では電源の種類をAC電源
とバッテリーとの例を示したが、この2例に限らず、そ
の他の電源であっても、使用電源検知手段の適切な設計
により応用可能であることは、改めて例示して説明を重
ねるまでもなく自明である。
In this embodiment, the type of power source is an AC power source and a battery, but the present invention is not limited to these two examples, and other types of power sources can be applied by appropriately designing the power source used. It is obvious that this is possible without exemplifying it again and repeating the description.

【0020】以上に詳細に説明したように、パソコン起
動時の使用電源がAC電源かバッテリーかを判別しそれ
に合わせて動作モードを決定する事ができ、パソコン使
用中の電源の変化にも対応して動作モードを変更できる
CD−ROMドライブ装置が可能となる。
As described in detail above, it is possible to determine whether the power source used when the personal computer is started is an AC power source or a battery and determine the operation mode accordingly, and to respond to changes in the power source while the personal computer is in use. Thus, a CD-ROM drive device capable of changing the operation mode can be realized.

【0021】この結果、AC電源使用時にはストレスの
ない高速モードで、バッテリー使用時には省電力な低速
モードでの動作が可能となる。
As a result, it is possible to operate in a stress-free high-speed mode when the AC power source is used and in a power-saving low-speed mode when the battery is used.

【0022】[0022]

【発明の効果】以上のようにして、パソコンの起動時の
使用電源に合わせて動作モードを決定すると共に、パソ
コン使用中の電源の切替にも対応して動作モードを変更
できるので、使用電源に最適な性能で動作するCD−R
OMドライブ装置を提供することができる。
As described above, the operation mode can be determined according to the power supply used when the personal computer is started up, and the operation mode can be changed in response to the switching of the power supply while the personal computer is in use. CD-R that operates with optimum performance
An OM drive device can be provided.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例におけるCD−ROMドライ
ブ装置の機能ブロック図
FIG. 1 is a functional block diagram of a CD-ROM drive device according to an embodiment of the present invention.

【図2】本発明の一実施例における動作モード設定のフ
ローチャート
FIG. 2 is a flowchart of operation mode setting according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 AC電源 2 ノートパソコン 3 CD−ROM制御部 4 CD−ROM機構部 5 バッテリー 6 電源部 7 使用電源検知手段 8 検知信号 9 サーボ回路切替装置 10 サーボ回路 11 モータドライバ 12 スピンドルモータ DESCRIPTION OF SYMBOLS 1 AC power supply 2 Notebook computer 3 CD-ROM control part 4 CD-ROM mechanism part 5 Battery 6 Power supply part 7 Used power supply detection means 8 Detection signal 9 Servo circuit switching device 10 Servo circuit 11 Motor driver 12 Spindle motor

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】使用電源の種類を検知して検知信号を出力
する使用電源検知手段と、前記検知信号に基づいて動作
モードを変更する制御手段とを有し、前記制御手段は、
商用電源使用時は高速の動作モードで、蓄電池電源使用
時は低速の動作モードで動作するように変更することを
特徴とするCD−ROMドライブ装置。
1. A used power supply detecting means for detecting a type of used power supply and outputting a detection signal, and a control means for changing an operation mode based on the detection signal, the control means comprising:
A CD-ROM drive device characterized by being changed so as to operate in a high speed operation mode when a commercial power source is used and in a low speed operation mode when a storage battery power source is used.
【請求項2】商用電源使用時に前記検知信号が蓄電池電
源使用を検知した場合、CD−ROMアクセス中でなけ
れば検知した時に、CD−ROMアクセス中であればそ
のアクセスの終了後に、前記制御手段が動作モードを高
速の動作モードから低速の動作モードに変更することを
特徴とする請求項1記載のCD−ROMドライブ装置。
2. The control means when the detection signal detects the use of the storage battery power source when the commercial power source is used, when it is detected that the CD-ROM is not being accessed, and when the CD-ROM is being accessed, after the access is completed. 2. The CD-ROM drive device according to claim 1, wherein the operation mode is changed from a high speed operation mode to a low speed operation mode.
【請求項3】蓄電池電源使用時に前記検知信号が商用電
源使用を検知した場合、CD−ROMアクセス中でなけ
れば検知した時に、CD−ROMアクセス中であればそ
のアクセスの終了後に、前記制御手段が動作モードを低
速の動作モードから高速の動作モードに変更することを
特徴とする請求項1記載のCD−ROMドライブ装置。
3. The control means when the detection signal detects the use of commercial power when the storage battery power source is used, when it is detected that the CD-ROM is not being accessed, and when the CD-ROM is being accessed after the access is completed. 2. The CD-ROM drive device according to claim 1, wherein the operation mode is changed from a low speed operation mode to a high speed operation mode.
JP22011194A 1994-09-14 1994-09-14 Cd-rom driving apparatus Pending JPH0887818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22011194A JPH0887818A (en) 1994-09-14 1994-09-14 Cd-rom driving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22011194A JPH0887818A (en) 1994-09-14 1994-09-14 Cd-rom driving apparatus

Publications (1)

Publication Number Publication Date
JPH0887818A true JPH0887818A (en) 1996-04-02

Family

ID=16746090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22011194A Pending JPH0887818A (en) 1994-09-14 1994-09-14 Cd-rom driving apparatus

Country Status (1)

Country Link
JP (1) JPH0887818A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003173611A (en) * 2001-12-06 2003-06-20 Hitachi-Lg Data Storage Inc Recording and reproducing device
EP1424624A2 (en) * 2002-11-29 2004-06-02 Kabushiki Kaisha Toshiba Method and apparatus for setting the operational mode of electronic devices
WO2004081919A3 (en) * 2003-03-11 2004-11-25 Koninkl Philips Electronics Nv Dual-speed optical record carrier recording apparatus
US7046603B2 (en) 2000-09-29 2006-05-16 Fujitsu Limited Information storage apparatus
US7523339B2 (en) 2004-05-20 2009-04-21 Fujitsu Limited Information processing apparatus and media storage apparatus using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7046603B2 (en) 2000-09-29 2006-05-16 Fujitsu Limited Information storage apparatus
JP2003173611A (en) * 2001-12-06 2003-06-20 Hitachi-Lg Data Storage Inc Recording and reproducing device
EP1424624A2 (en) * 2002-11-29 2004-06-02 Kabushiki Kaisha Toshiba Method and apparatus for setting the operational mode of electronic devices
EP1424624A3 (en) * 2002-11-29 2006-07-26 Kabushiki Kaisha Toshiba Method and apparatus for setting the operational mode of electronic devices
US7590871B2 (en) 2002-11-29 2009-09-15 Kabushiki Kaisha Toshiba Electronic apparatus and method of setting an operation mode of the same
WO2004081919A3 (en) * 2003-03-11 2004-11-25 Koninkl Philips Electronics Nv Dual-speed optical record carrier recording apparatus
US7523339B2 (en) 2004-05-20 2009-04-21 Fujitsu Limited Information processing apparatus and media storage apparatus using the same

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