JP2007012231A - Information recording/reproducing device and information recording/reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording/reproducing device and an information recording/reproducing method which can shorten time until reaching a state in which information recording and information reproducing become operable after power-on, without discriminating a recording medium, and reading disk information. <P>SOLUTION: When a power-off key is depressed in a recordable and reproducible state in which the information recording and information reproduction are operable, this device shifts to a first power-off state in which a power supply of medium access means (a pickup 3, a RF amplifier 4, a driver circuit 6, a spindle motor 7, and a feed motor 8) is switched off while disk information is stored in a shock proof memory 10. When a recording key or a reproducing key is depressed in the first power-off state, without re-discrimination of the medium classification and the recording format of a mini disc 1, the device shifts to the recordable and reproducible state, using the disk information stored in a disk information storage means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information recording / reproducing apparatus and an information recording / reproducing method, and more particularly to an information recording / reproducing apparatus and information recording for reproducing information data from a recording medium such as a mini-disc on which information data such as audio data is digitally recorded. It relates to a reproduction method.

  In recent years, various recording media and various recording formats have been developed along with a demand for expanding the recording capacity by high-density recording or the like, and there are a mixture of recording media having different shapes but substantially the same shape. For example, in the case of a mini-disc (MD), a recording / playback disc, a playback-only disc, MD data, Hi-MD, and the like are mixed.

  In an information recording / reproducing apparatus that reproduces information recorded on these recording media, it is required to support mixed recording media and recording formats. A medium type and a recording format are identified, and information is recorded and reproduced by a recording method and a reproducing method corresponding to the medium type and recording format loaded (see, for example, Patent Document 1).

However, in the prior art, as the number of corresponding recording media and recording formats increases, the time for identifying the mounted recording media and reading disc information such as TOC (Table Of Contents) becomes longer. There has been a problem in that it takes a long time until information can be recorded and reproduced after being inserted.
JP 2004-253119 A

  The present invention has been made in view of such problems, and an object of the present invention is to perform identification of a mounted recording medium and reading of disc information within a predetermined time after power-off. In addition, the present invention provides an information recording / reproducing apparatus and an information recording / reproducing method capable of shortening the time required for recording and reproducing information after power-on.

In order to solve the above problems, the present invention has the following configuration.
An information recording / reproducing apparatus according to the present invention identifies a medium type and a recording format of a recording medium, and records information on the recording medium and reproduces information from the recording medium by a corresponding recording method and reproducing method. A disk access unit for storing information on a medium access means for writing information to the recording medium and reading information from the recording medium; and disk information identifying the medium type and recording format of the recording medium A system controller for recording information on the recording medium and reproducing information from the recording medium by controlling the medium access means based on the disk information stored in the disk information storage means A recording key for instructing recording of information on the recording medium, and reproduction of information from the recording medium. And a recording / reproducing device capable of recording information on the recording medium and reproducing information from the recording medium. When the power-off key is pressed in a possible state, the disc information is stored in the disc information storage unit, and the medium access unit is switched to a first power-off state in which the power is turned off. When the recording key or the reproduction key is pressed in the first power-off state, the disc information stored in the disc information storage means is not changed without re-identifying the medium type and recording format of the recording medium. And to shift to the recordable / reproducible state.

  Further, in the information recording / reproducing apparatus of the present invention, when the power-off key is pressed in the first power-off state, the system controller turns off the power of the disk information storage means and sets itself in a sleep mode. It is characterized by making it transfer to the 2nd power-off state.

  Furthermore, in the information recording / reproducing apparatus of the present invention, after the transition to the first power-off state, a predetermined time elapses without the recording key, the reproduction key, and the power-off key being pressed. In this case, when the power-off key is pressed in the first power-off state, the system controller cuts off the power of the disk information storage unit and sets itself in the sleep mode. It is characterized by shifting to a state.

  Furthermore, the information recording / reproducing apparatus of the present invention is characterized by comprising display means for displaying a time until the transition from the first power-off state to the second power-off state.

  Further, the information recording / reproducing apparatus of the present invention identifies the medium type and recording format of the recording medium, and records information on the recording medium and reproduces information from the recording medium by a corresponding recording method and reproducing method. An information recording / reproducing method, wherein the disc information is stored when an instruction to turn off the power is given in a recordable / reproducible state in which information can be recorded on the recording medium and information can be reproduced from the recording medium. Thus, the medium access means for writing information to the recording medium and reading information from the recording medium is shifted to a first power-off state in which the power is turned off, and the recording is performed in the first power-off state. When recording of information on the medium or reproduction of information from the recording medium is instructed, the medium type and recording format of the recording medium are re-identified. Without using the disc information said storage, characterized in that it moves to the recording and reproducing state.

  According to the information recording / reproducing apparatus and information recording / reproducing method of the present invention, when the power-off key is pressed in a recording / reproducing enabled state, the first power-off is performed to turn off the power of the medium access means in a state where the disk information is stored. When the recording key or the reproduction key is pressed in the first power-off state, the disc information stored in the disc information storage means is not re-identified. By using the configuration to shift to a recordable / reproducible state, the information after the power is turned on without identifying the mounted recording medium and reading the disc information can be read within a predetermined time after the power is turned off. There is an effect that it is possible to shorten the time until the recording and reproduction of the image becomes possible.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a configuration of a first embodiment of an information recording / reproducing apparatus according to the present invention.

  In the present embodiment, referring to FIG. 1, audio data (information) input from an input terminal (not shown) is recorded on a mini disc (MD) 1, audio data is read from the mini disc 1, and audio is output from the headphones 2. An information recording / reproducing apparatus such as a portable MD player for output, which includes a pickup 3, an RF amplifier 4, a signal processing circuit 5, a driver circuit 6, a spindle motor 7, a feed motor 8, and a microcomputer for system control. A system controller 9, a shock proof memory 10, an amplifier circuit 11, a power supply circuit 12, an operation unit 13, a display unit 14, and a power supply 15 are configured.

  The pickup 3, the RF amplifier 4, the driver circuit 6, the spindle motor 7, and the feed motor 8 access the mini disk 1, write audio data to the mini disk 1, and write audio data from the mini disk 1. This is a medium access means for performing reading. During recording and reproduction, the mini-disc 1 is rotationally driven by a spindle motor 7 driven by a driver circuit 6, and the pickup 3 is fed in the radial direction of the mini-disc 1 by a feed motor 8 driven by the driver circuit 6. The pickup 3 writes audio data to the mini disc 1 and reads audio data from the mini disc 1. The audio data read by the pickup 3 is amplified by the RF amplifier 4 and sent to the signal processing circuit 5.

  The RF amplifier 4 generates servo control signals such as a focus error signal and tracking error signal from the audio data read from the pickup 3, and generates the servo control signal and a system control microcomputer (hereinafter referred to as a system control microcomputer). The driver circuit 6 is controlled by the control signal from the system controller 9 so that the focus, tracking and spin servos are applied. The driver circuit 6 controls the pickup 3 and the feed by the control signal from the RF amplifier 4. The motor 8 and the spindle motor 7 are driven.

  The signal processing circuit 5 modulates audio data input from an input terminal (not shown) during recording and inputs it to the RF amplifier 4, and demodulates the signal amplified by the RF amplifier 4 during reproduction, and further corrects errors, etc. The signal processing is sequentially written in the shock proof memory 10. Further, the signal processing circuit 5 reads out the voice data stored in the shock proof memory 10 as a memory reading means, decompresses the time axis in accordance with a predetermined format, decompresses it, converts the digital signal into analog, and generates a voice signal To do. The generated audio signal is output from the headphones 2 through the amplifier circuit 11.

  When the capacity of the voice data in the shock proof memory 10 becomes full, the system controller 9 sends a signal so that the voice data read from the mini disk 1 by the pickup 3 is not stored in the shock proof memory 10 for a predetermined time thereafter. When a predetermined amount of free space is generated in the shock proof memory 10 by controlling the processing circuit 5, the pickup 3 is jumped to the track before the capacity is full, and the audio data read from the disk 1 by the pickup 3 is shocked. The signal processing circuit 5 is controlled so as to be stored in the proof memory 10. By this control, shock proof data is always secured in the shock proof memory 10.

  Further, the system controller 9 is recorded on the mini disk 1 by an input from a sensor (not shown) that detects the presence or absence of an opening provided in the disk folder or when the mini disk 1 is mounted. Is read out, the medium type and recording format of the mounted mini-disc 1 are identified, the identification result is stored in the shock proof memory 10 as disk information, and the disc is the identification result of the medium type and recording format. Based on the information, the RF amplifier 4, the signal processing circuit 5, and the driver circuit 6 are controlled to record the audio data on the mini disc 1 and reproduce the audio data from the mini disc 1.

  Further, the system controller 9 functions as power control means for controlling the turning on and off of the power supplied from the power supply 15 such as a battery, and the medium access means, that is, the RF amplifier 4 and the power supply circuit 12 are used. The driver circuit 6 is controlled to be turned off and on, and the signal processing circuit 5, the shock proof memory 10 and the display unit 14 are turned off and on.

  The operation unit 13 is provided on the apparatus main body or a remote control connected to the main body, and includes a power-off key for instructing power-off, a reproduction key for instructing reproduction of information recorded on the mini-disc 1, and a mini-disc. And a plurality of keys including at least a recording key for instructing recording of information to 1.

  The display unit 14 is provided on the main body of the apparatus or a remote controller connected to the main body, and displays bibliographic data (song titles, artist names, etc.) relating to information being reproduced (song titles, artist names, etc.) and various guidance indicating the status of the apparatus. It is a display means such as a liquid crystal display on which display is performed.

Next, the operation of the first embodiment will be described in detail with reference to FIG. 2 and FIG.
FIG. 2 is a flowchart for explaining the operation of the first embodiment of the information recording / reproducing apparatus according to the present invention.

  The system controller 9 presses the power-off key in the operation unit 13 in a state where information can be recorded on the mini-disc 1 and information recorded on the mini-disc 1 can be reproduced (hereinafter referred to as “recordable / reproducible state”). (Step A1), when the power cut-off key is pressed, the display 14 is turned off and the medium access means, that is, the RF amplifier 4 and the driver circuit 6 are turned on using the power supply circuit 12. By cutting, the drive of the pickup 3, the spindle motor 7 and the feed motor 8 is stopped (step A2), and the apparatus is shifted to the first power-off state. In the first power-off state, the signal processing circuit 5 and the shock proof memory 10 are in a power-on state, and disc information is stored in the shock proof memory 10. Further, the disk information may be stored in the system controller 9, and the system controller 9 and the signal processing circuit 5 may be turned off in step A2.

  Next, in the first power-off state, the system controller 9 monitors the pressing of the reproduction key and the recording key on the operation unit 13 (step A3) and the pressing of the power-off key on the operation unit 13 (step A4). At the same time, it is monitored whether or not the elapsed time from the pressing of the power-off key determined in step A1 reaches a predetermined time (step A5).

  When the playback key or the recording key is pressed in step A3, that is, when the playback key or the recording key is pressed before the elapsed time from the pressing of the power-off key determined in step A1 reaches a predetermined time. The system controller 9 turns on the power of the display unit 14 and turns on the power to the medium access means, that is, the RF amplifier 4 and the driver circuit 6 using the power supply circuit 12 (step A6). By starting the drive of the spindle motor 7 and the feed motor 8, the apparatus is shifted to a recording / reproducing ready state, and the process returns to Step A1. When shifting from the first power-off state to the recordable / reproducible state, the disc information stored in the shock proof memory 10 is used to identify the medium type and recording format of the mounted minidisc 1. Without being performed, it is configured to shift to the record / playback ready state, and the time required to enter the record / playback ready state can be shortened.

  When the power-off key is pressed in step A4 and when the elapsed time from the press of the power-off key determined in step A1 in step A5 reaches a predetermined time, the system controller 9 The processing circuit 5 and the shock-proof memory 10 are turned off, and the processing circuit 5 and the shock-proof memory 10 are set in the sleep mode (step A7), and the apparatus is shifted to the second power-off state.

  Next, the system controller 9 monitors the pressing of the reproduction key and the recording key on the operation unit 13 in the second power-off state (step A8). When the play key and the record key are pressed in step A8, the system controller 9 cancels its sleep mode, turns on the signal processing circuit 5 and the shock proof memory 10 (step A9), and further displays. The power of the unit 14 is turned on, and the power to the medium access means, that is, the RF amplifier 4 and the driver circuit 6 is turned on using the power supply circuit 12 (step A6), and the pickup 3, spindle motor 7 and feed motor 8 are driven. Is started, the apparatus is shifted to a recordable / reproducible state, and the process returns to step A1.

  As described above, according to the first embodiment, when the power-off key is pressed in a recordable / reproducible state in which information can be recorded on the minidisc 1 and information can be reproduced from the minidisc 1, Transition to a first power-off state in which the power of the medium access means (pickup 3, RF amplifier 4, driver circuit 6, spindle motor 7 and feed motor 8) is cut off while disc information is stored in the shock proof memory 10 When the recording key or the reproduction key is pressed in the first power-off state, the disc information stored in the disc information storage means is used without re-identifying the medium type and recording format of the mini disc 1. If the recording medium is set within a predetermined time after the power is turned off, the recording medium is loaded. The time until the information can be recorded and reproduced after the power is turned on can be shortened without performing identification and reading of the disc information, and in the first power-off state, the power of the medium access means is turned off. Since it is cut off, the power consumption can be greatly reduced.

(Second Embodiment)
FIG. 3 is a flowchart for explaining the operation of the second embodiment of the information recording / reproducing apparatus according to the present invention, and FIG. 4 is a table after the power-off operation displayed on the display unit shown in FIG. It is a figure which shows an example.

  In the second embodiment, the display unit 14 is configured to display time until shifting from the first power-off state to the second power-off state.

  The system controller 9 presses the power-off key in the operation unit 13 in a state where information can be recorded on the mini-disc 1 and information recorded on the mini-disc 1 can be reproduced (hereinafter referred to as “recordable / reproducible state”). (Step A1), and when the power-off key is pressed, the power supply circuit 12 is used to cut off the power of the medium access means, that is, the RF amplifier 4 and the driver circuit 6, so that the pickup 3, spindle motor 7 and the feed motor 8 are stopped (step B1), and the apparatus is shifted to the first power-off state. In the first power-off state, the display unit 14 is turned on, and the signal processing circuit 5 and the shock-proof memory 10 are turned on. Disc information is stored.

  Further, when the power-off key is pressed in step A1, the system controller 9 causes the display unit 14 to display the time until shifting from the first power-off state to the second power-off state (step B2).

  Next, in the first power-off state, the system controller 9 monitors the pressing of the reproduction key and the recording key on the operation unit 13 (step A3) and the pressing of the power-off key on the operation unit 13 (step A4). At the same time, it is monitored whether or not the elapsed time from the pressing of the power-off key determined in step A1 reaches a predetermined time (step A5).

  When the playback key or the recording key is pressed in step A3, that is, when the playback key or the recording key is pressed before the elapsed time from the pressing of the power-off key determined in step A1 reaches a predetermined time. The system controller 9 turns on the power to the medium access means, that is, the RF amplifier 4 and the driver circuit 6 using the power supply circuit 12 (step B3), and drives the pickup 3, the spindle motor 7 and the feed motor 8. By starting, the apparatus is shifted to a recording / reproducing ready state, and the process returns to Step A1. When shifting from the first power-off state to the recordable / reproducible state, the disc information stored in the shock proof memory 10 is used to identify the medium type and recording format of the mounted minidisc 1. Without being performed, it is configured to shift to the record / playback ready state, and the time required to enter the record / playback ready state can be shortened.

  When the power-off key is pressed in step A4, and the playback key and the record key are not pressed, the elapsed time from the power-off key determined in step A1 in step A5 is set to a predetermined time. When it reaches, the system controller 9 turns off the power of the signal processing circuit 5, the shock proof memory 10 and the display unit 14 and sets itself to the sleep mode (step B4), and puts the apparatus in the second power-off state. Transition.

  Next, the system controller 9 monitors the pressing of the reproduction key and the recording key on the operation unit 13 in the second power-off state (step A8). When the play key and the record key are pressed in step A8, the system controller 9 cancels its own sleep mode and turns on the signal processing circuit 5, the shock proof memory 10, and the display unit 14 (step B5). Further, the power to the medium access means, that is, the RF amplifier 4 and the driver circuit 6 is turned on using the power supply circuit 12 (Step A6), and the drive of the pickup 3, the spindle motor 7 and the feed motor 8 is started. The apparatus is shifted to a recordable / reproducible state, and the process returns to step A1.

  As described above, when the elapsed time from the pressing of the power-off key determined in step A1 in step A5 reaches a predetermined time without pressing the power-off key, the playback key, and the recording key. , Transition from the first power-off state to the second power-off state. Therefore, the time that the system controller 9 displays on the display unit 14 in step B2 is 10 minutes when the predetermined time used in the process of step A5 is predetermined, as shown in FIG. When the button is pressed, 10 minutes are displayed, and then a countdown is performed. When 10 minutes have elapsed, a message notifying that the state is shifted to the second power-off state is displayed. If the power-off key, the playback key, or the record key is pressed before the elapsed time after pressing the power-off key determined in step A1 reaches a predetermined time, the system controller 9 displays The time display of the unit 14 is stopped.

  As described above, according to the second embodiment, the user can configure the display unit 14 to display the time until the display unit 14 shifts from the first power-off state to the second power-off state. Since it is possible to grasp the time until the transition to the second power-off state in which it takes a long time to record and reproduce information after the power is turned on, the usability is improved. Play.

  It should be noted that the present invention is not limited to the above-described embodiments, and it is obvious that each embodiment can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like in practicing the present invention. In each figure, the same numerals are given to the same component.

It is a block diagram which shows the structure of 1st Embodiment of the information recording / reproducing apparatus which concerns on this invention. 5 is a flowchart for explaining the operation of the first embodiment of the information recording / reproducing apparatus according to the present invention; It is a flowchart for demonstrating operation | movement of 2nd Embodiment of the information recording / reproducing apparatus which concerns on this invention. It is a figure which shows the example of a display after the power-off operation displayed on the display part shown in FIG.

Explanation of symbols

1 Mini disk 2 Headphone 3 Pickup (medium access means)
4 RF amplifier (medium access means)
5 Signal processing circuit 6 Driver circuit (medium access means)
7 Spindle motor (medium access means)
8 Feed motor (medium access means)
9 System controller 10 Shock proof memory (disc information storage means)
11 Amplifier Circuit 12 Power Supply Circuit 13 Operation Unit 14 Display Unit 15 Power Supply

Claims (5)

An information recording / reproducing apparatus for identifying a medium type and a recording format of a recording medium, recording information on the recording medium with a corresponding recording method and reproducing method, and reproducing information from the recording medium,
Medium access means for writing information to the recording medium and reading information from the recording medium;
Disk information storage means for storing disk information identifying the medium type and recording format of the recording medium;
A system controller for recording information on the recording medium and reproducing information from the recording medium by controlling the medium access means based on the disk information stored in the disk information storage means;
A recording key for instructing recording of information on the recording medium, a reproducing key for instructing reproduction of information from the recording medium, and an operation means having a power-off key for instructing power-off.
When the power-off key is pressed in a recordable / reproducible state in which information can be recorded on the recording medium and information can be reproduced from the recording medium, the system controller stores the disk information in the disk information storage means. In the stored state, when the medium access means is shifted to a first power-off state in which the power is turned off, and the recording key or the reproduction key is pressed in the first power-off state, the recording medium The information recording / reproducing apparatus is characterized in that the disc information stored in the disc information storage means is used to shift to the recordable / reproducible state without re-identifying the medium type and recording format.   When the power-off key is pressed in the first power-off state, the system controller turns off the power of the disk information storage means and shifts to the second power-off state in which it puts itself in the sleep mode. The information recording / reproducing apparatus according to claim 1.   After the transition to the first power-off state, when a predetermined time has passed without the recording key, the playback key, and the power-off key being pressed, the system controller 2. When the power-off key is pressed in a power-off state of 1, the power to the disk information storage means is turned off, and a transition is made to a second power-off state in which the disk information storage unit is put into a sleep mode. 3. The information recording / reproducing apparatus according to 1 or 2.   5. The information recording / reproducing apparatus according to claim 4, further comprising display means for displaying a time from the first power-off state to the transition to the second power-off state. An information recording / reproducing method for identifying a medium type and a recording format of a recording medium, recording information on the recording medium with a corresponding recording method and reproducing method, and reproducing information from the recording medium,
When an instruction to turn off the power is given in a recordable / reproducible state where information can be recorded on and reproduced from the recording medium, the information to the recording medium is stored in a state where the disc information is stored. And a transition to a first power-off state in which the power of the medium access means for writing and reading information from the recording medium is turned off,
When recording of information on the recording medium or reproduction of information from the recording medium is instructed in the first power-off state, the storage type is not performed without re-identifying the medium type and recording format of the recording medium. An information recording / reproducing method, wherein the disc information is used to shift to the recordable / reproducible state.

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