JP4760347B2 - Disk unit - Google Patents

Disk unit Download PDF

Info

Publication number
JP4760347B2
JP4760347B2 JP2005352908A JP2005352908A JP4760347B2 JP 4760347 B2 JP4760347 B2 JP 4760347B2 JP 2005352908 A JP2005352908 A JP 2005352908A JP 2005352908 A JP2005352908 A JP 2005352908A JP 4760347 B2 JP4760347 B2 JP 4760347B2
Authority
JP
Japan
Prior art keywords
power
turned
driving device
control
response signal
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.)
Expired - Fee Related
Application number
JP2005352908A
Other languages
Japanese (ja)
Other versions
JP2007157273A (en
Inventor
正 下口
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.)
Funai Electric Co Ltd
Original Assignee
Funai Electric 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 Funai Electric Co Ltd filed Critical Funai Electric Co Ltd
Priority to JP2005352908A priority Critical patent/JP4760347B2/en
Publication of JP2007157273A publication Critical patent/JP2007157273A/en
Application granted granted Critical
Publication of JP4760347B2 publication Critical patent/JP4760347B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Power Sources (AREA)

Description

本発明は、光ディスクに情報データを記録再生するディスク装置に係り、特に電源ＯＦＦ時に、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号がない場合でも、電源をＯＦＦにすることができるディスク装置に関する。 The present invention relates to a disk device that records and reproduces information data on an optical disk, and in particular, when the power is turned off, the power can be turned off even if there is no response signal for the completion of the power off process from all the control circuits of the drive device. The present invention relates to a disk device.

一般に、ディスク装置には、マイコンから複数の駆動装置の制御回路に制御信号を送出して、複数の制御回路のそれぞれに接続された駆動装置を動作させている。電源ＯＦＦが指令されたとき、マイコンは、駆動装置の全制御回路に電源ＯＦＦ処理を指令する制御信号を送出して、複数の制御回路のそれぞれに接続された駆動装置の電源ＯＦＦ処理を実行させるようになっている。そして、複数の制御回路のそれぞれに接続された駆動装置の電源ＯＦＦ処理が終了すると、駆動装置の制御回路のそれぞれから電源ＯＦＦ処理終了の応答信号がマイコンに送出され、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号を受信すると、マイコンは、電源制御回路に制御信号を送出して、ディスク装置の電源をＯＦＦにする。しかし、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されていない場合、マイコンは、駆動装置の全制御回路から送出された電源ＯＦＦ処理終了の応答信号を受信するまで、電源制御回路に制御信号を送出することができず、ディスク装置の電源がＯＦＦにならない状態が続くため、ユーザが電源プラグをコンセントから抜いて強制的にディスク装置の電源をＯＦＦにしなければならないという煩わしい問題点があった。
背景技術としては、終了処理を開始した時点でタイマを起動し、プログラムが正常に終了処理を行った場合は終了処理の終りで電源をＯＦＦにし、不具合があった場合は所定時間経過した時点で強制的に電源を遮断するようにしたものがあった（例えば、特許文献１参照）。
また、電源装置に外部から電源切断指示信号を送出して、制御プログラムが所定の終了処理を実行した後、所定時間までに制御プログラムから電源切断指示信号が出力されないときに、ウォッチドッグタイマからタイムアウト信号が出力された場合、外部からの電源切断指示信号により装置の電源を切断するようにしたものがあった（例えば、特許文献２参照）。
また、電源スイッチが操作によりタイマを起動して制御部に終了処理を実行させ、制御部が電源ＯＦＦ信号を電源制御回路に出力しない場合に、一定時間経過したとき、タイマからの電源ＯＦＦ信号を電源制御回路に送出して、システムの電源をＯＦＦにするようにしたものがあった（例えば、特許文献３参照）。
また、マイコンの電源をＯＮにして、マイコンから電源スイッチの操作直前の状態に応じて制御信号を送出してデジタル回路の電源のＯＮ／ＯＦＦを切り換え、マイコンの誤動作時に、電源スイッチの操作によりマイコンのリセット端子にリセットをかけて、デジタル回路の電源のＯＮ／ＯＦＦを切り換えるようにしたものがあった（例えば、特許文献４参照）。
特開２００１−１４０６９号公報 特開平６−２０２７６４号公報 特開平７−１０４８９３号公報 特開２００１−３０６１９２号公報 Generally, in a disk device, a control signal is sent from a microcomputer to control circuits of a plurality of drive devices, and the drive devices connected to the plurality of control circuits are operated. When a command to turn off the power is given, the microcomputer sends a control signal for commanding the power-off process to all the control circuits of the drive device, so that the power-off process of the drive device connected to each of the plurality of control circuits is executed. It is like that. When the power supply OFF processing of the drive device connected to each of the plurality of control circuits is completed, a response signal indicating completion of the power supply OFF processing is sent from each of the control circuits of the drive device to the microcomputer, and from all the control circuits of the drive device When the response signal indicating that the power-off process has been completed is received, the microcomputer sends a control signal to the power control circuit to turn off the power of the disk device. However, if the response signal for the end of the power OFF process has not been received from all the control circuits of the drive device, the microcomputer will not supply power until it receives the response signal for the end of the power OFF process sent from all the control circuits of the drive device. Since the control signal cannot be sent to the control circuit and the power supply of the disk device does not turn off, the user has to unplug the power plug from the outlet and forcibly turn off the disk device. There was a problem.
As a background art, a timer is started when the termination process is started, the power is turned off at the end of the termination process when the program finishes the termination process normally, and when a predetermined time elapses when there is a malfunction. There is one that forcibly shuts off the power supply (see, for example, Patent Document 1).
In addition, after a power-off instruction signal is sent from the outside to the power supply and the control program executes a predetermined end process, a time-out occurs from the watchdog timer when the power-off instruction signal is not output from the control program by a predetermined time. When a signal is output, there is a device in which the power of the apparatus is turned off by an external power-off instruction signal (see, for example, Patent Document 2).
In addition, when the power switch starts the timer by operation and causes the control unit to execute the termination process, and the control unit does not output the power OFF signal to the power control circuit, the power OFF signal from the timer is Some have been sent to the power supply control circuit to turn off the system power (see, for example, Patent Document 3).
In addition, when the microcomputer power is turned on, a control signal is sent from the microcomputer according to the state immediately before the power switch is operated to switch the digital circuit power ON / OFF. Some reset terminals are reset to turn on / off the power of the digital circuit (see, for example, Patent Document 4).
JP 2001-14069 A Japanese Patent Application Laid-Open No. 6-202864 Japanese Patent Laid-Open No. 7-104893 JP 2001-306192 A

しかしながら、背景技術で述べたもののうち最初のものにおいては、終了処理を開始した時点でタイマを起動し、プログラムが正常に終了処理を行った場合は終了処理の終りで電源をＯＦＦにし、不具合があった場合は所定時間経過した時点で強制的に電源を遮断することができたが、オペレーティングシステムやアプリケーションプログラムが正常に終了されない場合に、強制的に電源を遮断するようにしたものであって、上記問題点を解決するようにしたものではなかった。
また、次のものにおいては、電源装置に外部から電源切断指示信号を送出して、制御プログラムが所定の終了処理を実行した後、所定時間までに制御プログラムから電源切断指示信号が出力されないときに、ウォッチドッグタイマからタイムアウト信号が出力された場合、外部からの電源切断指示信号により装置の電源を切断することができたが、プログラムが暴走した場合に、ウォッチドッグタイマのタイムアウト信号を検出したとき、強制的に電源をＯＦＦにするようにしたものであって、上記問題点を解決するようにしたものではなかった。
また、更にその次のものにおいては、電源スイッチが操作によりタイマを起動して制御部に終了処理を実行させ、制御部が電源ＯＦＦ信号を電源制御回路に出力しない場合に、一定時間経過したとき、タイマからの電源ＯＦＦ信号を電源制御回路に送出して、システムの電源をＯＦＦにすることができたが、制御部のプログラムが暴走した場合に、タイマからの電源ＯＦＦ信号にシステムの電源をＯＦＦにするようにしたものであって、上記問題点を解決するようにしたものではなかった。
また、更にその次のものにおいては、マイコンの電源をＯＮにして、マイコンから電源スイッチの操作直前の状態に応じて制御信号を送出し、デジタル回路の電源のＯＮ／ＯＦＦを切り換え、マイコンの誤動作時に、電源スイッチの操作によりマイコンのリセット端子にリセットをかけて、デジタル回路の電源のＯＮ／ＯＦＦを切り換えることができたが、マイコンの誤動作時に、ＡＣプラグをコンセントから抜かずに、電源スイッチの操作によりマイコンをリセットするようにしたものであって、上記問題点を解決するようにしたものではなかった。
本発明は、背景技術の有するこのような問題点に鑑みてなされたものであり、その目的とするところは、電源ＯＦＦが指令されたときに、駆動装置の全制御回路に電源ＯＦＦ処理を指令する信号制御信号を送出しても、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号がない場合に、電源をＯＦＦにすることができるディスク装置を提供しようとするものである。 However, in the first one described in the background art, the timer is started when the termination process is started, and when the program performs the termination process normally, the power is turned off at the end of the termination process. In such a case, the power could be forcibly shut off when a predetermined time elapses, but if the operating system or application program is not terminated normally, the power is forcibly shut off. However, the above problems were not solved.
In the following, when a power-off instruction signal is not output from the control program by a predetermined time after a power-off instruction signal is sent from the outside to the power supply device and the control program executes a predetermined end process When a time-out signal is output from the watchdog timer, the power to the device can be turned off by an external power-off instruction signal, but when the watchdog timer time-out signal is detected when the program runs out of control However, the power is forcibly turned off, and the above problem is not solved.
Further, in the following, when a certain time has elapsed when the power switch starts the timer by operation and causes the control unit to execute the termination process, and the control unit does not output the power OFF signal to the power control circuit The system could be turned off by sending a power off signal from the timer to the power control circuit. However, if the control program runs away, the system power is turned off by the power off signal from the timer. However, the above problem was not solved.
Furthermore, in the following, the microcomputer power is turned on, the control signal is sent from the microcomputer according to the state immediately before the operation of the power switch, the digital circuit power is turned on / off, and the microcomputer malfunctions. Sometimes, the power switch of the digital circuit could be turned on and off by resetting the reset terminal of the microcomputer by operating the power switch, but when the microcomputer malfunctioned, the AC plug was not disconnected from the outlet. It was designed to reset the microcomputer by operation, but not to solve the above problems.
The present invention has been made in view of such problems of the background art, and the object of the present invention is to command the power OFF processing to all the control circuits of the driving device when the power OFF is commanded. Even when a signal control signal to be transmitted is transmitted, when there is no response signal for the completion of the power-off process from all the control circuits of the drive device, a disk device capable of turning off the power is provided.

上記目的を達成するため本発明においては、光ディスクに情報データを記録再生するディスク装置であって、ディスク装置の電源ＯＦＦを指令する電源ＯＦＦ指令手段と、前記電源ＯＦＦ指令手段により電源ＯＦＦが指令されたとき、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路に送出する送出手段と、前記送出手段により電源ＯＦＦ処理を指令する制御信号が送出されたときからの時間を計時するタイマ手段と、駆動装置の制御回路から電源ＯＦＦ処理終了の応答信号を受信する受信手段と、前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、電源ＯＦＦ時の正常終了の終了情報を記憶し、前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合に、前記タイマ手段の計時時間が所定時間経過したとき、電源ＯＦＦ時の異常終了の終了情報を記憶する記憶手段と、前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたとき、或いは、前記タイマ手段の計時時間が所定時間経過したとき、ディスク装置の電源をＯＦＦにする電源ＯＦＦ手段とを備える。
更に、前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出する再送出手段を備える。
更に、ディスク装置の電源ＯＮを指令する電源ＯＮ指令手段と、前記電源ＯＮ指令手段によりディスク装置の電源ＯＮが指令されたとき、ディスク装置の電源をＯＮにする電源ＯＮ手段と、前記記憶手段に記憶されている電源ＯＦＦ時の終了情報を読み出して、電源ＯＦＦ時の終了状態を判別する判別手段と、前記判別手段により電源ＯＦＦ時に駆動装置の全制御回路が正常終了していなかったと判別された場合、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して制御回路の駆動装置を電源ＯＮ時の初期状態に復帰させる復帰手段とを備える。
前記記憶手段は、不揮発性メモリであるとよい。
これらの手段により、電源ＯＦＦが指令されたときに、駆動装置の全制御回路に電源ＯＦＦ処理を指令する信号制御信号を送出しても、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号がない場合に、電源をＯＦＦにすることができる。 To achieve the above object, according to the present invention, there is provided a disk device for recording / reproducing information data on an optical disk, the power-off command means for commanding the power-off of the disk device, and the power-off command means commanding the power-off. A sending means for sending a control signal for instructing power-off processing to all control circuits of the driving device, and a timer means for measuring the time from when the control signal for instructing power-off processing is sent by the sending means And a receiving means for receiving a response signal for the end of the power-off process from the control circuit of the driving device, and when the response signal for the end of the power-off process from all the control circuits of the driving device is received by the receiving means, The normal termination information is stored, and the reception means receives a response signal indicating the completion of the power-off process from all the control circuits of the driving device. If not, when the time measured by the timer means has elapsed a predetermined time, the storage means for storing the end information of the abnormal end when the power is turned off, and the power supply OFF process from all the control circuits of the drive device by the receiving means is completed. Power supply OFF means for turning off the power supply of the disk device when a predetermined time elapses.
Further, when the receiving means has not received a response signal indicating that the power OFF process has been completed from all the control circuits of the driving device, the control signal instructing the power OFF process is repeatedly retransmitted to a control circuit having no response signal indicating the completion of the power OFF process. A re-sending means is provided.
Further, a power-on command means for commanding power-on of the disk device, a power-on means for turning on the power of the disk device when the power-on command is commanded by the power-on command means, and a storage means The stored end information when the power is turned off is read out, and the discriminating means for discriminating the end state when the power is turned off, and the discriminating means discriminates that all the control circuits of the driving device are not normally finished when the power is turned off. In this case, there is provided return means for sending a control signal to the control circuit of the drive device that has not been normally terminated when the power is turned off, and returning the drive device of the control circuit to the initial state when the power is turned on.
The storage means may be a nonvolatile memory.
By these means, even when a signal control signal for instructing power OFF processing is sent to all the control circuits of the driving device when the power OFF is instructed, a response to completion of the power OFF processing from all the control circuits of the driving device The power supply can be turned off when there is no signal.

本発明に係るディスク装置によれば、ディスク装置の電源ＯＦＦを指令して、電源ＯＦＦが指令されたとき、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路に送出して、電源ＯＦＦ処理を指令する制御信号が送出されたときからの時間を計時し、駆動装置の制御回路から電源ＯＦＦ処理終了の応答信号を受信して、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出して、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、電源ＯＦＦ時の正常終了の終了情報を記憶し、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合に、計時時間が所定時間経過したとき、電源ＯＦＦ時の異常終了の終了情報を記憶して、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたとき、或いは、計時時間が所定時間経過したとき、ディスク装置の電源をＯＦＦにし、ディスク装置の電源ＯＮを指令して、ディスク装置の電源をＯＮにし、記憶されている電源ＯＦＦ時の終了情報を読み出して、電源ＯＦＦ時の終了状態を判別し、電源ＯＦＦ時に駆動装置の全制御回路が正常終了していなかったと判別された場合、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して制御回路の駆動装置を電源ＯＮ時の初期状態に復帰させるようにしているので、電源ＯＦＦが指令されたときに、駆動装置の全制御回路に電源ＯＦＦ処理を指令する信号制御信号を送出しても、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号がない場合に、電源をＯＦＦにすることができ、ノイズ等の何らかの原因で電源ＯＦＦ処理を指令する制御信号が制御回路に受信されていない場合に、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に再送出することができるとともに、電源ＯＦＦ時に正常に終了していない制御回路の駆動装置を制御させてディスク装置の電源ＯＮ時の初期状態に復帰させることができる。
また、本発明に係るディスク装置によれば、ディスク装置の電源ＯＦＦを指令して、電源ＯＦＦが指令されたとき、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路に送出して、電源ＯＦＦ処理を指令する制御信号が送出されたときからの時間を計時し、駆動装置の制御回路から電源ＯＦＦ処理終了の応答信号を受信して、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、電源ＯＦＦ時の正常終了の終了情報を記憶し、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合に、計時時間が所定時間経過したとき、電源ＯＦＦ時の異常終了の終了情報を記憶して、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたとき、或いは、計時時間が所定時間経過したとき、ディスク装置の電源をＯＦＦにするようにしているので、電源ＯＦＦが指令されたときに、駆動装置の全制御回路に電源ＯＦＦ処理を指令する信号制御信号を送出しても、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号がない場合に、電源をＯＦＦにすることができる。
また、本発明に係るディスク装置によれば、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出するようにしているので、ノイズ等の何らかの原因で電源ＯＦＦ処理を指令する制御信号が制御回路に受信されていない場合に、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出することができる。
また、本発明に係るディスク装置によれば、ディスク装置の電源ＯＮを指令して、ディスク装置の電源をＯＮにし、記憶されている電源ＯＦＦ時の終了情報を読み出して、電源ＯＦＦ時の終了状態を判別し、電源ＯＦＦ時に駆動装置の全制御回路が正常終了していなかったと判別された場合、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して制御回路の駆動装置を電源ＯＮ時の初期状態に復帰させるようにしているので、電源ＯＦＦ時に正常に終了していない制御回路の駆動装置を制御させてディスク装置の電源ＯＮ時の初期状態に復帰させることができる。
また、本発明に係るディスク装置によれば、電源ＯＦＦ時の終了情報を不揮発性メモリに記憶するようにしているので、ディスク装置の電源がＯＦＦになっても電源ＯＦＦ時の終了情報を保持することができる。
According to the disk device of the present invention, when the power supply of the disk device is instructed, and when the power supply is instructed, a control signal for instructing the power-off process is sent to all the control circuits of the drive device, and the power supply is turned off. Time is measured from the time when the control signal for instructing the process is sent out, the response signal for the end of the power-off process is received from the control circuit of the drive device, and the response signal for the end of the power-off process from all the control circuits of the drive device Is not received, the control signal instructing the power-off process is repeatedly sent to a control circuit that does not have a response signal for the completion of the power-off process, and a response signal for the completion of the power-off process is received from all the control circuits of the drive unit. When the power is turned off, the end information of the normal end when the power is turned off is stored, and when the response signal of the power off process end is not received from all the control circuits of the drive device, When the fixed time has elapsed, the end information of the abnormal end when the power is turned off is stored, and when a response signal for the end of the power OFF process is received from all the control circuits of the drive device, or the time measured has elapsed for a predetermined time When the disk device is turned off, the disk device is turned on, the disk device is turned on, the stored end information when the power is turned off is read, and the end state when the power is turned off is determined. When it is determined that all the control circuits of the drive device have not ended normally when the power is turned off, a control signal is sent to the control circuit of the drive device that has not ended normally when the power is turned off to power the drive device of the control circuit. Since the initial state at the time of ON is restored, a signal control signal for instructing the power OFF process is sent to all the control circuits of the driving device when the power OFF is instructed. Even if there is no response signal for the end of the power-off process from all the control circuits of the drive device, the power can be turned off, and the control signal for instructing the power-off process for some reason such as noise When the power is not received, the control signal for instructing the power OFF process can be re-sent to the control circuit that does not have a response signal for the power OFF process completion, and the control circuit that has not ended normally when the power is OFF is driven. The device can be controlled to return to the initial state when the disk device is powered on.
Further , according to the disk device according to the present invention, when the power of the disk device is instructed to be turned off, and when the power is turned off, a control signal for instructing the power off process is sent to all the control circuits of the drive device, Counts the time from when the control signal commanding the power OFF process is sent, receives the response signal for the power OFF process completion from the control circuit of the drive unit, and ends the power OFF process from all the control circuits of the drive unit When the response signal is received, the end information of the normal end when the power is turned off is stored, and when the response signal for the end of the power off process is not received from all the control circuits of the drive device, the time elapsed after a predetermined time Storing abnormal termination information when the power is turned off, and when a response signal indicating completion of power-off processing is received from all control circuits of the driving device, or when a predetermined time has elapsed When the power is turned off, even if a signal control signal for instructing the power off process is sent to all the control circuits of the drive device, the drive device The power supply can be turned off when there is no response signal for the completion of the power off process from all the control circuits.
Further , according to the disk device of the present invention, when the response signal for the end of the power-off process is not received from all the control circuits of the drive device, the response signal for the end of the power-off process is sent as a control signal for instructing the power-off process. since the way repeatedly re sent to no control circuit, when the control signal instructing a certain cause the power OFF processing such as noise, have not been received to the control circuit, the power supply OFF control signal instructing the power OFF process It can be re-sent repeatedly to a control circuit that does not have a process end response signal.
Further , according to the disk device of the present invention, the disk device is turned on, the disk device is turned on, the stored termination information at power-off is read, and the termination status at power-off is read And when it is determined that all the control circuits of the drive device have not ended normally when the power is turned off, a control signal is sent to the control circuit of the drive device that has not ended normally when the power is turned off. Is restored to the initial state when the power is turned on, the drive device of the control circuit that is not normally terminated when the power is turned off can be controlled to return to the initial state when the disk device is turned on.
Also, according to the disk device of the present invention, the end information when the power is turned off is stored in the non-volatile memory, so that the end information when the power is turned off is retained even when the power of the disk device is turned off. be able to.

以下、適宜図面を参照しながら本発明を実施するための最良の形態を詳述する。図１は本発明の一実施例のディスク装置の構成を示すブロック図であり、図２は本発明の一実施例のディスク装置の動作を示すフローチャートであり、図３は本発明の一実施例のディスク装置の動作を示すフローチャートである。
まず、図１の本発明の一実施例のディスク装置の構成を示すブロック図を基に説明する。
ディスク装置１は、光ディスク２にレーザ光を照射してその反射光を検出し、光ディスク２に記録されている映像音声データを読み出す光ピックアップ３と、光ディスク２を回転させるスピンドルモータ４と、光ピックアップ３を光ディスク２の半径方向にスレッド移動させるスレッドモータ５と、スピンドルモータ４の回転速度とスレッドモータ５の回転方向、回転速度とをサーボ制御し、光ピックアップ３により検出されたトラッキング誤差信号、フォーカス誤差信号に基づいて光ピックアップ３のトラッキング、フォーカスをサーボ制御するサーボ回路６と、光ピックアップ３により読み出された映像音声データのＲＦ（Ｒａｄｉｏ Ｆｒｅｑｕｅｎｃｙ）信号を増幅するＲＦ増幅回路７と、ＲＦ増幅回路７により増幅された映像音声データのＲＦ信号を基準クロックに基づいて同期検出して復調し、復調された映像音声データの誤りを訂正して、所定の圧縮方式に基づいて圧縮された映像音声データを伸張し、伸張された映像音声データを復号して映像音声信号を再生する信号処理回路８と、ディスク装置１のシステム全体を制御するマイコン９と、光ディスクを載置するディスクトレイを開閉するトレイモータ１０を駆動制御するトレイモータ駆動制御回路１１と、ディスク装置の電源のＯＮ／ＯＦＦを制御する電源制御回路１２と、ディスク装置の電源ＯＦＦ時の終了情報等の各種データを記憶する不揮発性メモリのフラッシュＲＯＭ１３と、リモコン装置２０から送信された赤外線信号のリモコン信号を受信して、所定の電気信号に変換するリモコン受信部１４とで構成されている。
以上のように構成されたディスク装置について、以下その動作について説明する。
リモコン装置２０の操作キーの操作によりディスク装置１の電源ＯＦＦが指令されると、マイコン９は、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路（図１においては、サーボ回路６とトレイモータ駆動制御回路１１）に送出して、ソフトウェアタイマをスタートさせる。そして、マイコン９は、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されたか否かを判別して、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、マイコン９は、電源ＯＦＦ時に、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信された正常終了の終了情報をフラッシュＲＯＭ９に記憶して、電源制御回路１２に制御信号を送出して、ディスク装置１の電源をＯＦＦにする。
また、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、マイコン９は、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に再送出する。電源ＯＦＦ処理終了の応答信号が受信されていない制御回路に電源ＯＦＦ処理を指令する制御信号を再送出しても、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合、マイコン９は、ソフトウェアタイマの計時時間が所定時間経過するまで、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返して再送出する。そして、ソフトウェアタイマの計時時間が所定時間経過した場合、マイコン９は、電源ＯＦＦ時に、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない異常終了の終了情報をフラッシュＲＯＭ１３に記憶して、電源制御回路１２に制御信号を送出して、ディスク装置１の電源をＯＦＦにする。
リモコン装置２０の操作キーの操作によりディスク装置の電源ＯＮが指令されるマイコン９は、電源制御回路１１に制御信号を送出して、ディスク装置１の電源をＯＮにし、フラッシュＲＯＭ１３に記憶されている電源ＯＦＦ時の終了情報を読み出して電源ＯＦＦ時に終了状態を判別し、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して、正常終了していない駆動装置をディスク装置１の電源ＯＮ時の初期状態に復帰させる。
また、図２の本発明の一実施例のディスク装置の動作を示すフローチャートを基に説明する。
リモコン装置の操作キーの操作によりディスク装置の電源ＯＦＦが指令されると、ステップＳ１からステップＳ２に進み、ステップＳ２で、電源ＯＦＦ処理を指令する制御信号が駆動装置の全制御回路に送出されて、ソフトウェアタイマがスタートされ、ステップＳ３に進む。
ステップＳ３で、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたか否かが判断され、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、ステップＳ６に進み、駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されていない場合、ステップＳ４に進む。
ステップＳ４で、電源ＯＦＦ処理を指令する制御信号が電源ＯＦＦ処理終了の応答信号がない制御回路に再送出されて、ステップＳ５に進む。
ステップＳ５で、ソフトウェアタイマの計時時間が所定時間経過したか否かが判断され、ソフトウェアタイマの計時時間が所定時間経過した場合、ステップＳ６に進み、ソフトウェアタイマの計時時間が所定時間経過していない場合、ステップＳ３に戻って、ステップＳ３からのステップを繰り返す。
ステップＳ６で、電源ＯＦＦ時に、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない異常終了の終了情報がフラッシュＲＯＭに記憶されて、ステップＳ８に進む。
ステップＳ７で、電源ＯＦＦ時に、駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信された正常終了の終了情報がフラッシュＲＯＭに記憶されて、ステップＳ８に進む。
ステップＳ８で、ディスク装置の電源がＯＦＦにされて、ステップＳ９に進んで処理を終了する。
また、図３の本発明の一実施例のディスク装置の動作を示すフローチャートを基に説明する。
リモコン装置の操作キーの操作によりディスク装置の電源がＯＮになると、ステップＳ１１からステップＳ１２に進み、ステップＳ１２で、フラッシュＲＯＭに記憶されている電源ＯＦＦ時の終了情報が読み出されて、ステップＳ１３に進む。
ステップＳ１３で、フラッシュＲＯＭから読み出された電源ＯＦＦ時の終了情報に基づいて電源ＯＦＦ時に駆動装置の全制御回路が正常終了していたか否かが判断され、電源ＯＦＦ時に駆動装置の全制御回路が正常終了していた場合、ステップＳ１５に進んで処理を終了し、電源ＯＦＦ時にディスク装置の駆動装置の全制御回路が正常終了していなかった場合、ステップＳ１４に進む。
ステップＳ１４で、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号が送出されて、正常終了していない駆動装置がディスク装置の電源ＯＮ時の初期状態に復帰させ、ステップＳ１５に進んで処理を終了する。
以上、本発明を実施するための最良の形態について詳述したが、本発明はこれに限定されるものではなく、当業者の通常の知識の範囲内でその変形や改良が可能であることはいうまでもない。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a block diagram showing the configuration of a disk apparatus according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the disk apparatus according to an embodiment of the present invention, and FIG. 3 shows an embodiment of the present invention. 3 is a flowchart showing the operation of the disk device of FIG.
First, a description will be given based on the block diagram showing the configuration of the disk device of one embodiment of the present invention shown in FIG.
The disk device 1 irradiates an optical disk 2 with laser light, detects the reflected light, reads an audio / video data recorded on the optical disk 2, a spindle motor 4 that rotates the optical disk 2, and an optical pickup 3 is controlled by servo-controlling the rotational speed of the spindle motor 4 and the rotational direction and rotational speed of the spindle motor 4, and the tracking error signal detected by the optical pickup 3 and the focus. A servo circuit 6 that servo-controls tracking and focus of the optical pickup 3 based on the error signal, an RF amplification circuit 7 that amplifies an RF (Radio Frequency) signal of video / audio data read by the optical pickup 3, and an RF amplification The video / audio data amplified by the circuit 7 The RF signal of the data is synchronously detected and demodulated based on the reference clock, the error of the demodulated video / audio data is corrected, and the compressed video / audio data is decompressed and decompressed based on a predetermined compression method. The signal processing circuit 8 that decodes the video / audio data and reproduces the video / audio signal, the microcomputer 9 that controls the entire system of the disk device 1, and the tray motor 10 that opens and closes the disk tray on which the optical disk is placed are controlled. A tray motor drive control circuit 11, a power control circuit 12 for controlling ON / OFF of the power of the disk device, a flash ROM 13 of a nonvolatile memory for storing various data such as end information when the power of the disk device is turned OFF, and a remote controller A remote control receiver 14 that receives the remote control signal of the infrared signal transmitted from the device 20 and converts it into a predetermined electrical signal. It is.
The operation of the disk device configured as described above will be described below.
When the power-off of the disk device 1 is instructed by operating the operation key of the remote controller 20, the microcomputer 9 sends a control signal for instructing the power-off process to all the control circuits of the drive device (in FIG. 1, the servo circuit 6 and The software is sent to the tray motor drive control circuit 11) to start the software timer. Then, the microcomputer 9 determines whether or not a response signal indicating the end of the power OFF process has been received from all the control circuits of the driving device, and has received a response signal indicating the end of the power OFF processing from all the control circuits of the driving device. In this case, when the power is turned off, the microcomputer 9 stores the completion information on the normal completion when the response signal for the completion of the power off processing is received from all the control circuits of the driving device in the flash ROM 9, and sends the control signal to the power supply control circuit 12. Then, the power source of the disk device 1 is turned off.
If no response signal indicating that the power OFF process has been received from all the control circuits of the driving device, the microcomputer 9 re-sends the control signal instructing the power OFF process to a control circuit that does not have a response signal indicating the completion of the power OFF process. To do. If the control signal for instructing the power OFF process is re-sent to the control circuit that has not received the power OFF process end response signal, and no power OFF process end response signal is received from all the control circuits of the drive unit, the microcomputer 9 Until the time measured by the software timer elapses, the control signal for instructing the power-off process is repeatedly sent to the control circuit having no response signal for the completion of the power-off process. When the time measured by the software timer has elapsed, when the power is turned off, the microcomputer 9 sends, to the flash ROM 13, the abnormal termination completion information in which no response signal for completion of the power OFF processing has been received from all the control circuits of the driving device. The data is stored and a control signal is sent to the power supply control circuit 12 to turn off the power of the disk device 1.
The microcomputer 9, which is instructed to turn on the disk device by operating the operation key of the remote controller 20, sends a control signal to the power supply control circuit 11 to turn on the disk device 1 and is stored in the flash ROM 13. The end information when the power is turned off is read to determine the end state when the power is turned off, and a control signal is sent to the control circuit of the drive device that is not finished normally when the power is turned off. To the initial state when the power is turned on.
The operation will be described with reference to the flowchart of FIG. 2 showing the operation of the disk apparatus according to the embodiment of the present invention.
When the power-off of the disk device is instructed by operating the operation key of the remote control device, the process proceeds from step S1 to step S2, and in step S2, a control signal for instructing power-off processing is sent to all control circuits of the drive device. The software timer is started and the process proceeds to step S3.
In step S3, it is determined whether or not a response signal indicating the end of the power OFF process has been received from all the control circuits of the driving device. If a response signal indicating the end of the power OFF process has been received from all the control circuits of the driving device, Proceeding to step S6, if no response signal indicating the completion of the power-off process has been received from all the control circuits of the driving device, the process proceeds to step S4.
In step S4, the control signal for instructing the power OFF process is re-sent to the control circuit having no response signal for the power OFF process completion, and the process proceeds to step S5.
In step S5, it is determined whether or not the time measured by the software timer has elapsed. If the time measured by the software timer has elapsed, the process proceeds to step S6, and the time measured by the software timer has not elapsed. If so, the process returns to step S3 and the steps from step S3 are repeated.
In step S6, when the power is turned off, the abnormal termination information is not stored in the flash ROM in which no response signal for completion of the power OFF process has been received from all the control circuits of the drive device, and the process proceeds to step S8.
In step S7, when the power is turned off, the normal termination information is received in the flash ROM when the response signal indicating completion of the power OFF process is received from all the control circuits of the drive device, and the process proceeds to step S8.
In step S8, the power source of the disk device is turned off, and the process proceeds to step S9 to end the process.
The operation will be described with reference to the flowchart of FIG. 3 showing the operation of the disk apparatus according to the embodiment of the present invention.
When the power of the disk device is turned on by operating the operation key of the remote control device, the process proceeds from step S11 to step S12. In step S12, the end information at the time of power OFF stored in the flash ROM is read, and step S13 is performed. Proceed to
In step S13, it is determined whether or not all the control circuits of the driving device have been normally terminated when the power is turned off based on the end information when the power is turned off read from the flash ROM. Is completed normally, the process proceeds to step S15, and the process is terminated. If all the control circuits of the disk drive device are not normally completed when the power is turned off, the process proceeds to step S14.
In step S14, a control signal is sent to the control circuit of the drive device that has not ended normally when the power is turned off, and the drive device that has not ended normally returns to the initial state when the disk device is turned on, and the process proceeds to step S15. End the process.
Although the best mode for carrying out the present invention has been described in detail above, the present invention is not limited to this, and modifications and improvements can be made within the ordinary knowledge of those skilled in the art. Needless to say.

本発明の一実施例のディスク装置の構成を示すブロック図である。It is a block diagram which shows the structure of the disk apparatus of one Example of this invention. 本発明の一実施例のディスク装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the disc apparatus of one Example of this invention. 本発明の一実施例のディスク装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the disc apparatus of one Example of this invention.

符号の説明Explanation of symbols

１ ディスク装置
２ 光ディスク
３ 光ピックアップ
４ スピンドルモータ
５ スレッドモータ
６ サーボ回路
７ ＲＦ増幅回路
８ 信号処理回路
９ マイコン
１０ トレイモータ
１１ トレイモータ駆動制御回路
１２ 電源制御回路
１３ フラッシュＲＯＭ
１４ リモコン受信部
２０ リモコン装置 DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Optical disc 3 Optical pick-up 4 Spindle motor 5 Thread motor 6 Servo circuit 7 RF amplifier circuit 8 Signal processing circuit 9 Microcomputer 10 Tray motor 11 Tray motor drive control circuit 12 Power supply control circuit 13 Flash ROM
14 Remote control receiver 20 Remote control device

Claims (4)

光ディスクに情報データを記録再生するディスク装置であって、
ディスク装置の電源ＯＦＦを指令する電源ＯＦＦ指令手段と、
前記電源ＯＦＦ指令手段により電源ＯＦＦが指令されたとき、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路に送出する送出手段と、
前記送出手段が電源ＯＦＦ処理を指令する制御信号を送出したときからの時間を計時するタイマ手段と、
駆動装置の制御回路から電源ＯＦＦ処理終了の応答信号を受信する受信手段と、
前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出する再送出手段と、
前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、電源ＯＦＦ時の正常終了の終了情報を記憶し、前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合に、前記タイマ手段の計時時間が所定時間経過したとき、電源ＯＦＦ時の異常終了の終了情報を記憶する記憶手段と、
前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたとき、或いは、前記タイマ手段の計時時間が所定時間経過したとき、ディスク装置の電源をＯＦＦにする電源ＯＦＦ手段と、
ディスク装置の電源ＯＮを指令する電源ＯＮ指令手段と、
前記電源ＯＮ指令手段によりディスク装置の電源ＯＮが指令されたとき、ディスク装置の電源をＯＮにする電源ＯＮ手段と、
前記記憶手段に記憶されている電源ＯＦＦ時の終了情報を読み出して、電源ＯＦＦ時の終了状態を判別する判別手段と、
前記判別手段により電源ＯＦＦ時に駆動装置の全制御回路が正常終了していなかったと判別された場合、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して制御回路の駆動装置を電源ＯＮ時の初期状態に復帰させる復帰手段とを備えたことを特徴とするディスク装置。 A disk device for recording and reproducing information data on an optical disk,
Power-off command means for commanding power-off of the disk device;
Sending means for sending a control signal for instructing power OFF processing to all control circuits of the driving device when power OFF is instructed by the power OFF instruction means;
Timer means for measuring the time from when the sending means sends out a control signal for instructing power-off processing;
A receiving means for receiving a response signal indicating completion of the power OFF process from the control circuit of the driving device;
If no response signal indicating that the power OFF process has been completed has been received from all the control circuits of the driving device by the receiving means, a control signal for instructing the power OFF process is repeatedly retransmitted to a control circuit that does not have a response signal indicating the completion of the power OFF process. Re-sending means;
When a response signal indicating completion of power OFF processing is received from all the control circuits of the driving device by the receiving means, information on completion of normal end when the power is OFF is stored, and power is supplied from all control circuits of the driving device by the receiving means. Storage means for storing end information of abnormal termination when the power is turned off when a predetermined time has elapsed when the timer means has received a response signal indicating that the OFF processing has been terminated;
When the receiving means receives a response signal indicating completion of power OFF processing from all the control circuits of the driving device, or when the time measured by the timer means has elapsed a predetermined time, the power is turned OFF to turn off the disk device. Means,
Power-on command means for commanding power-on of the disk device;
A power-on means for turning on the power of the disk device when the power-on of the disk device is commanded by the power-on command means;
Determining means for reading end information at the time of power OFF stored in the storage means and determining an end state at power OFF;
When it is determined by the determination means that all the control circuits of the driving device have not been normally terminated when the power is turned off, a control signal is sent to the control circuit of the driving device that has not been normally terminated when the power is turned off. A disk device comprising: return means for returning the disk to an initial state when the power is turned on. 光ディスクに情報データを記録再生するディスク装置であって、
ディスク装置の電源ＯＦＦを指令する電源ＯＦＦ指令手段と、
前記電源ＯＦＦ指令手段により電源ＯＦＦが指令されたとき、電源ＯＦＦ処理を指令する制御信号を駆動装置の全制御回路に送出する送出手段と、
前記送出手段が電源ＯＦＦ処理を指令する制御信号を送出したときからの時間を計時するタイマ手段と、
駆動装置の制御回路から電源ＯＦＦ処理終了の応答信号を受信する受信手段と、
前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されていない場合、電源ＯＦＦ処理を指令する制御信号を電源ＯＦＦ処理終了の応答信号がない制御回路に繰り返し再送出する再送出手段と、
前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信された場合、電源ＯＦＦ時の正常終了の終了情報を記憶し、前記受信手段により駆動装置の全制御回路から電源ＯＦＦ処理終了の応答信号が受信されない場合に、前記タイマ手段の計時時間が所定時間経過したとき、電源ＯＦＦ時の異常終了の終了情報を記憶する記憶手段と、
前記受信手段により駆動装置の全制御回路からの電源ＯＦＦ処理終了の応答信号が受信されたとき、或いは、前記タイマ手段の計時時間が所定時間経過したとき、ディスク装置の電源をＯＦＦにする電源ＯＦＦ手段とを備えたことを特徴とするディスク装置。 A disk device for recording and reproducing information data on an optical disk,
Power-off command means for commanding power-off of the disk device;
Sending means for sending a control signal for instructing power OFF processing to all control circuits of the driving device when power OFF is instructed by the power OFF instruction means;
Timer means for measuring the time from when the sending means sends out a control signal for instructing power-off processing;
A receiving means for receiving a response signal indicating completion of the power OFF process from the control circuit of the driving device;
If no response signal indicating that the power OFF process has been completed has been received from all the control circuits of the driving device by the receiving means, a control signal for instructing the power OFF process is repeatedly retransmitted to a control circuit that does not have a response signal indicating the completion of the power OFF process. Re-sending means;
When a response signal indicating completion of power OFF processing is received from all the control circuits of the driving device by the receiving means, information on completion of normal end when the power is OFF is stored, and power is supplied from all control circuits of the driving device by the receiving means. Storage means for storing end information of abnormal termination when the power is turned off when a predetermined time has elapsed when the timer means has received a response signal indicating that the OFF processing has been terminated;
When the receiving means receives a response signal indicating completion of power OFF processing from all the control circuits of the driving device, or when the time measured by the timer means has elapsed a predetermined time, the power is turned OFF to turn off the disk device. And a disk device. ディスク装置の電源ＯＮを指令する電源ＯＮ指令手段と、
前記電源ＯＮ指令手段によりディスク装置の電源ＯＮが指令されたとき、ディスク装置の電源をＯＮにする電源ＯＮ手段と、
前記記憶手段に記憶されている電源ＯＦＦ時の終了情報を読み出して、電源ＯＦＦ時の終了状態を判別する判別手段と、
前記判別手段により電源ＯＦＦ時に駆動装置の全制御回路が正常終了していなかったと判別された場合、電源ＯＦＦ時に正常終了していない駆動装置の制御回路に制御信号を送出して制御回路の駆動装置を電源ＯＮ時の初期状態に復帰させる復帰手段とを更に備えたことを特徴とする請求項２記載のディスク装置。 Power-on command means for commanding power-on of the disk device;
A power-on means for turning on the power of the disk device when the power-on of the disk device is commanded by the power-on command means;
Determining means for reading end information at the time of power OFF stored in the storage means and determining an end state at power OFF;
When it is determined by the determination means that all the control circuits of the driving device have not been normally terminated when the power is turned off, a control signal is sent to the control circuit of the driving device that has not been normally terminated when the power is turned off. 3. The disk device according to claim 2 , further comprising return means for returning the disk to an initial state when the power is turned on . 前記記憶手段は、不揮発性メモリであることを特徴とする請求項１又は２のいずれかに記載のディスク装置。 It said storage means, the disk apparatus according to claim 1 or 2, characterized in that a non-volatile memory.
JP2005352908A 2005-12-07 2005-12-07 Disk unit Expired - Fee Related JP4760347B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005352908A JP4760347B2 (en) 2005-12-07 2005-12-07 Disk unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005352908A JP4760347B2 (en) 2005-12-07 2005-12-07 Disk unit

Publications (2)

Publication Number Publication Date
JP2007157273A JP2007157273A (en) 2007-06-21
JP4760347B2 true JP4760347B2 (en) 2011-08-31

Family

ID=38241428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005352908A Expired - Fee Related JP4760347B2 (en) 2005-12-07 2005-12-07 Disk unit

Country Status (1)

Country Link
JP (1) JP4760347B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5112490B2 (en) 2010-09-30 2013-01-09 株式会社東芝 Information processing apparatus and power supply control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000267176A (en) * 1999-03-16 2000-09-29 Olympus Optical Co Ltd Camera
JP2001014069A (en) * 1999-06-30 2001-01-19 Matsushita Electric Ind Co Ltd Method for automatically stopping power supply and information processor equipped with automatic power, supply stopping device
JP2001030579A (en) * 1999-07-16 2001-02-06 Seiko Epson Corp Printer, control method therefor and data recording medium
JP2004362059A (en) * 2003-06-02 2004-12-24 Nissan Motor Co Ltd Electronic control unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000267176A (en) * 1999-03-16 2000-09-29 Olympus Optical Co Ltd Camera
JP2001014069A (en) * 1999-06-30 2001-01-19 Matsushita Electric Ind Co Ltd Method for automatically stopping power supply and information processor equipped with automatic power, supply stopping device
JP2001030579A (en) * 1999-07-16 2001-02-06 Seiko Epson Corp Printer, control method therefor and data recording medium
JP2004362059A (en) * 2003-06-02 2004-12-24 Nissan Motor Co Ltd Electronic control unit

Also Published As

Publication number Publication date
JP2007157273A (en) 2007-06-21

Similar Documents

Publication Publication Date Title
US7496773B2 (en) Data recording/reproducing system using optical disk apparatus
JP4760347B2 (en) Disk unit
US8040767B2 (en) Optical disc drive
US7929827B2 (en) Information recording apparatus
KR101908669B1 (en) Optical disc drive with usb interface
JP4258475B2 (en) Television receiver with disc playback function
JP4222091B2 (en) Optical disk recording or playback device
JP4767070B2 (en) DVD recorder with built-in hard disk
JP2011134373A (en) Starting control device and method
JP2006179137A (en) Optical disk device
JP2006189973A (en) Electronic apparatus and program update method for the same
JP2004289645A (en) Composite electronic apparatus
US7697379B2 (en) Information processing apparatus and its control method, program, and storage medium
US8254228B2 (en) Optical disc drive and hibernation recovery method for an optical disc drive
JP2007316687A (en) Electronic equipment, program rewriting method, and program
JP2009507325A (en) Optical disk drive control
JP2002335484A (en) Data recorder
JP3856143B2 (en) Disk unit cleaning management device
JP2008112532A (en) Optical disk drive
JP2004118369A (en) Program-controlled compound equipment
JP2004013243A (en) Optical disk drive and method for controlling optical disk drive
WO2004066063A2 (en) Disk device, method for controlling disk device, program and recording medium
KR100729067B1 (en) Write system for high capacity video and audio data, and method for recovering writing data therof
JP4075068B2 (en) Video / audio recording device
JP2004235679A (en) Imaging apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20081009

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110214

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110222

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110418

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110510

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110523

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140617

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees