JP2007012220A - Disk recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten activation time when shifting from a standby mode to an operation mode in a disk recording and reproducing device. <P>SOLUTION: The disk recording and reproducing device is provided with a disk device, a time monitoring means and a drive control means, and the disk device performs adjustment processing for obtaining a control value corresponding to a recording medium when the recording medium is newly mounted and stores an obtained adjusted result in a storage means. In the case that the disk recording and reproducing device shifts to the standby mode in a state that the recording medium is mounted on the disk device, the time monitoring means notifies the drive control means when the preset adjustment valid time elapses from the time of the shift, the drive control means activates the disk device, performs the adjustment processing, obtains the adjusted result, updates the value in the storage means and stops the disk device again. When the disk recording and reproducing device shifts from the standby mode to the operation mode next time, the disk device performs activation using the adjustment value stored in the storage means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk recording / reproducing apparatus equipped with a disk device, and more particularly to speeding up activation of the disk recording / reproducing apparatus.

  In a disk recording / reproducing apparatus using an optical disk, adjustment processing is performed in order to obtain a control value for absorbing variations among disks and stably recording or reproducing. Since this adjustment process is performed when the disk is replaced or when the disk recording / reproducing apparatus is turned on, a start-up time is required until operation becomes possible. As the activation time is completed in a shorter time, the usability is improved. As a conventional activation time reduction technique, for example, there is a method described in Patent Document 1.

JP 2002-74694 A

The start-up time shortening method according to Patent Document 1 stores the adjustment result adjusted last time in the storage means, and the adjustment process is omitted by using the adjustment result of the storage means at the next start-up. However, if the elapsed time from the adjustment process to the next startup is a long time, the adjustment result of the storage means to avoid inconsistency between the adjustment result at the time of adjustment and the appropriate value at the time of startup due to aging of the device or recording medium Start up after performing adjustment again without using. In this case, the startup time could not be shortened.
However, in a stationary AV recorder or the like, the frequency of use varies depending on the user, and the interval at which the device is used may be longer. In this case, if it is used at intervals exceeding the set time, the effect of shortening the startup time is completely lost. Therefore, a method for shortening the start-up time is required even if the apparatus usage interval is long.

  The disk recording / reproducing apparatus has a disk apparatus, time measuring means, time monitoring means, and drive control means for issuing an operation command of the disk apparatus, and the disk apparatus sets control values for recording or reproducing on a recording medium. Adjustment means to obtain, and storage means for holding the adjustment result by the adjustment means. The disc recording / playback device has a standby mode that stops functions except for some functions, and an operation mode in which the device operates, and transitions to the standby mode when the recording medium is mounted on the disc device. When the preset effective adjustment time has elapsed from the set time, the time monitoring means notifies the drive control means, and the drive control means activates the disk device to perform adjustment processing, and updates the adjustment result of the storage means. The next time the disk recording / reproducing apparatus shifts from the standby mode to the operation mode, the disk apparatus is activated using the adjustment result stored in the storage means, thereby omitting the adjustment process and shortening the activation time.

  Further, when the adjustment effective time has further elapsed from the time when the adjustment process was performed in the standby mode, the adjustment process is performed again, and the adjustment result of the storage unit is updated.

  Further, a nonvolatile memory is used as the storage means.

  Further, the rotation speed of the recording medium in the adjustment process in the standby mode is made lower than the rotation speed when the adjustment process is performed by newly mounting the recording medium on the disk device, thereby reducing noise and vibration.

  Further, the number of adjustment processes in the standby mode is set, and power is saved by not performing the adjustment process in the standby mode when it is not used for a long time.

  In addition, an adjustable time at which adjustment is permitted in the standby mode is set, and the adjustment process is performed at the first adjustable time after the adjustment effective time has elapsed, thereby managing the time at which the adjustment process is performed.

  In addition, an adjustable time at which adjustment is allowed in the standby mode is set, and the adjustment process is performed at the last adjustable time within the effective adjustment time, thereby managing the time at which the adjustment process is performed.

  Further, the disk recording / reproducing apparatus has a temperature measuring unit and a temperature monitoring unit, and holds temperature information when performing the adjustment process in the storage unit. In standby mode, the temperature at the time of adjustment processing is compared with the current temperature, and if it is detected that the temperature difference is equal to or greater than the preset allowable temperature change value, the adjustment processing is performed and the adjustment result of the storage means Update.

  By managing the adjustment result of the storage means by the above means, the disk device can be started without adjustment processing when shifting from the standby mode to the operation mode, and the start-up time can be shortened.

  The transition time for the disc recording / reproducing apparatus to shift from the standby mode to the operation mode can be shortened, and user convenience is improved.

  The time for the disc recording / reproducing apparatus to shift from the standby mode to the operation mode is achieved by shortening the startup time of the disc device.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a configuration of a disk recording / reproducing apparatus 1 according to an embodiment of the present invention. Here, the disk recording / reproducing apparatus 1 is assumed to be an AV recorder that records and reproduces video and audio. The disk recording / reproducing apparatus 1 includes a disk apparatus 2, a drive control means 5, a time monitoring means 6, and a time measuring means 7, and the disk apparatus 2 obtains control values suitable for recording / reproduction for each recording medium. An adjustment unit 3 for adjusting and a storage unit 4 for storing the adjustment result are mounted. When the disk device 2 is newly loaded with a recording medium, the adjusting unit 3 performs adjustment to obtain an adjustment result suitable for the recording medium, and the adjustment result is stored in the storage unit 4.

The disc recording / reproducing apparatus 1 has a standby mode in which the functions are stopped except for some functions and an operation mode in which the functions of the apparatus are operated. For example, in an AV recorder, the standby mode indicates a state in which the power switch is turned off and only the answering reservation mode using the timer is operating, and the operation mode indicates that the power is turned on and video and audio can be recorded and reproduced. During the standby mode, the user seems to have stopped functioning because the power is turned off, but the interrupt processing function by the timer is actually operating. The power consumption is a major difference between the standby mode and the operation mode. The power consumption is large because all functions operate in the operation mode, and the power consumption is small because only some functions are operating in the standby mode. In this embodiment, in the standby mode, the disk device 2 and the drive control means 5 are in a stopped state, and the time monitoring means 6 and the time measuring means 7 are in an operating state. In the standby mode, the time monitoring means 6 monitors the time measuring means 7 and when it is detected that it is a preset time, it notifies the drive control means 5 and activates the drive control means 5. After starting, the drive control means 5 starts up, executes adjustment processing, issues a disk device stop command after executing the adjustment processing, and stops the drive control means 5 after issuing the command. The disk device 2 stores the adjustment result in the storage unit 4 when the adjustment process is executed. Also, the effective time of the adjustment result is set in advance in the disc recording / reproducing apparatus. The storage means 4 uses a non-volatile memory to hold the adjustment result even when the disk device 2 is stopped.
The disk device 2 performs adjustment processing when the recording medium is replaced. Further, since the disk device stops when the disk recording / reproducing apparatus enters the standby mode, the adjustment process is usually required again when the operation mode is shifted to the next operation mode. However, in the present invention, the adjustment result is stored in the storage unit 4, and the adjustment process is omitted by using the adjustment result in the storage unit 4 when the recording medium is not changed when the standby mode is changed to the operation mode. The disk device can be started up in a short time. By shortening the activation time of the disk device, it is possible to shorten the transition time for the disk recording / reproducing apparatus 1 to shift from the standby mode to the operation mode.
By the way, if the time from the previous adjustment process to the next disk device start-up is long, the adjustment result stored in the storage means 4 and the optimum adjustment value at the time of start-up are not good due to the time-dependent change of the disk device or recording medium. May cause alignment. In the present invention, in order to avoid this inconsistency, adjustment processing is performed at appropriate intervals during the standby mode, and the adjustment result of the storage means 4 is always updated appropriately.
With reference to FIG. 2, the timing at which the disk recording / reproducing apparatus of this embodiment performs the adjustment process will be described. FIG. 2 illustrates the mode switching of the disk recording / reproducing apparatus and the execution timing of each process. The horizontal axis is the time axis, and time elapses from left to right. First, during the operation mode, the recording medium is loaded in (A). Since this is a new recording medium at this time, adjustment processing is performed to obtain an appropriate control value, and the adjustment result is stored in the storage means. Next, the operation mode is shifted to the standby mode without taking out the recording medium (B). When the effective time of the adjustment result of the storage means has elapsed (C) from (B), the adjustment process is performed again, and the value of the storage means is updated with the adjustment result. After the adjustment result is updated in (C), if the adjustment effective time has passed, the adjustment process is performed again and the result is updated (D). As described above, when the adjustment effective time has elapsed from the pre-adjustment process, the adjustment process is repeated and the result is updated (E). When the disk recording / reproducing apparatus shifts from the standby mode to the operation mode, the adjustment process is omitted using the adjustment result of the storage means and the disk apparatus is activated (F). With this method, the adjustment result stored in the storage means is always in a state where an appropriate value is updated, and the disk device can be started stably even if the adjustment process is omitted. As the adjustment execution timing, the time is calculated from the time when the mode is shifted to the standby mode, the adjustment effective time, and the time when the adjustment process is performed.

  As described above, the adjustment result necessary when starting the disk device is held in the storage means, so that the adjustment process is not required and the start-up time can be shortened. In order to avoid inconsistency between the adjustment result and the start-up due to changes in the apparatus over time, the adjustment result is adjusted in the standby mode, and the effective adjustment result is always updated in the storage means. As a result, the startup time of the disk device can be shortened.

  Next, timing for performing adjustment processing of the disk recording / reproducing apparatus according to the second embodiment of the present invention will be described with reference to FIG. FIG. 3 explains the switching of the operation mode of the disk recording / reproducing apparatus and the execution timing of each process, as in FIG. In the first embodiment, when the adjustment effective time has elapsed during the standby mode, the adjustment process is performed and the adjustment result is updated. However, when the disk recording / reproducing apparatus is not used for a long time, the adjustment process is updated endlessly. In order to avoid this, as shown in FIG. 3, the number of adjustment processes to be performed in the standby mode is determined in advance, and the adjustment process is not performed when the number is exceeded. In FIG. 3, the number of adjustments in the standby mode is up to 3, and after the transition to the standby mode (B), the adjustment processing is not performed after the adjustment processing in (C), (D), and (E). When the operation mode is shifted (F), adjustment processing is performed to start the disk device. This eliminates the effect of shortening the start-up time after the standby mode has continued for a long time, but can achieve the power saving effect in the standby mode.

  Next, the timing for performing the adjustment process of the disc recording / reproducing apparatus according to the third embodiment of the present invention will be described with reference to FIG. FIG. 4 explains the switching of the mode of the disk recording / reproducing apparatus and the execution timing of each process, as in FIG. The disk recording / reproducing apparatus has a high use frequency and a low use time in one day. For example, it is generally considered that the usage frequency is low at midnight or at dawn. When considering the adjustment process during the standby mode, it is desirable to perform the adjustment process at a time when the user rarely shifts to the operation mode. Therefore, as shown in FIG. 4, a time at which the adjustment process may be performed within a day is set, and the adjustment process is performed when the adjustment effective time has passed and the adjustable time has come. That is, after the adjustment effective time elapses (C) from the standby mode transition (B), the adjustment process is performed at the next adjustable time (D). In addition, after the next adjustment effective time elapses (E) from the adjustment process (D), the adjustment is performed at the next adjustable time (F). By this method, the adjustment in the standby mode can be managed so as to be performed only at a fixed time in one day.

  Next, the timing for performing the adjustment process of the disc recording / reproducing apparatus according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 5 explains the switching of the mode of the disk recording / reproducing apparatus and the execution timing of each process, as in FIG. Strictly looking at the third embodiment, after the adjustment effective time has passed, the adjustment process is not performed until the next adjustable time, so (set adjustment effective time) + (1 day) is the actual adjustment time interval. It becomes the maximum value. In order to prevent a period exceeding the adjustment effective time from occurring, as shown in FIG. 5, immediately after the adjustment effective time elapses after setting a time zone during which adjustment processing may be performed within one day. Adjustment processing may be performed when the adjustable time is reached. That is, the adjustment process is performed at the last adjustable time (C) within the effective adjustment time (D) from the standby mode transition (B). Further, the next adjustment process is performed at the last adjustable time (E) within the adjustment effective time (F) from the adjustment process (C). By this method, the adjustment in the standby mode is managed so as to be performed only at a fixed time in one day, and all the adjustment results can be updated within the adjustment effective time.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 6 shows the configuration of a disc recording / reproducing apparatus 1 according to the fifth embodiment of the present invention. Here, the disk recording / reproducing apparatus 1 is mounted with a temperature monitoring means 8 and a temperature measuring means 9 added to the configuration of the first embodiment. In the standby mode, the temperature monitoring means 8 and the temperature measuring means 9 are in an operating state. In the standby mode, the temperature monitoring means 8 monitors the temperature measuring means 9 and, when detecting that the temperature is preset, notifies the drive control means 5 and activates the drive control means 5. After starting, the drive control means 5 starts up, executes adjustment processing, issues a disk device stop command after executing the adjustment processing, and stops the drive control means 5 after issuing the command. When executing the adjustment process, the disk device 2 stores the adjustment result and the temperature at the time of adjustment in the storage unit 4. In the disk recording / reproducing apparatus, an allowable temperature change value as an adjustment result is set in advance.
By the way, the cause of the mismatch between the adjustment result stored in the storage means and the optimum adjustment value at the time of start-up is due to the influence of the temperature change of the environment in addition to the change with time. In the present invention, in order to avoid inconsistency due to temperature change, when it is detected that the temperature difference between the temperature in the standby mode and the temperature when the adjustment result is stored exceeds the preset allowable temperature change value, the adjustment process And the adjustment result in the storage means 4 is updated.
With reference to FIG. 7, the timing at which the disk recording / reproducing apparatus of this embodiment performs the adjustment process will be described. FIG. 7 explains the mode switching of the disk recording / reproducing apparatus and the execution timing of each process. The horizontal axis is the time axis, and time elapses from left to right. The adjustment process over time in the standby mode is the same as in the first embodiment (C). When the temperature monitored by the temperature monitoring means exceeds the allowable temperature change value with respect to the temperature when the adjustment process is performed here, the adjustment process (D) is performed even within the adjustment effective time, and the adjustment result is updated. . As described above, the adjustment processing is performed by detecting either the adjustment effective time elapse or the temperature change detection exceeding the allowable temperature change value, and the adjustment result is always updated to an effective one. By this method, the adjustment result stored in the storage means is always an appropriate value, and the disk device can be started stably even if the adjustment process is omitted.
In the case of the disk recording / reproducing apparatus of the present invention, the adjustment process is performed in the standby mode. In the standby mode, there is no problem even if the adjustment process takes a little time. Therefore, the adjustment process can be performed by lowering the rotation speed from the rotation speed of the recording medium during the normal adjustment process when replacing the recording medium. By lowering the rotational speed of the recording medium than usual, it is possible to reduce noise such as wind noise and vibration generated by imbalance of the recording medium.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a configuration of a disc recording / reproducing apparatus according to a first embodiment of the present invention. FIG. 6 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating the timing at which the disk recording / reproducing apparatus performs adjustment processing during the standby mode. FIG. 10 is a diagram illustrating a second embodiment of the present invention, and is a diagram illustrating the timing at which the disk recording / reproducing apparatus performs adjustment processing during the standby mode. FIG. 10 is a diagram illustrating a third embodiment of the present invention, and is a diagram illustrating a timing at which the disk recording / reproducing apparatus performs adjustment processing during the standby mode. FIG. 10 is a diagram illustrating a fourth embodiment of the present invention, and is a diagram illustrating the timing at which the disk recording / reproducing apparatus performs adjustment processing during the standby mode. It is the figure which showed the 5th Example of this invention, and is the figure explaining the structure of the disc recording / reproducing apparatus. FIG. 10 is a diagram illustrating a fifth embodiment of the present invention and is a diagram illustrating the timing at which the disk recording / reproducing apparatus performs adjustment processing during the standby mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disk recording / reproducing apparatus 2 ... Disk apparatus 3 ... Adjustment means 4 ... Memory | storage means 5 ... Drive control means 6 ... Time monitoring means 7 ... Time measuring means 8 ... Temperature monitoring means 9 ... Temperature measuring means

Claims (8)

In a disk recording / reproducing apparatus having a disk device for recording or reproducing by rotating a disk-shaped recording medium, a time measuring means, a time monitoring means, and a drive control means for issuing an operation command for the disk device,
The disk device has adjustment means for obtaining a control value for performing recording or reproduction on the recording medium, and storage means for holding an adjustment result by the adjustment means,
The time monitoring means monitors the time obtained from the time measuring means, and notifies the drive control means when a preset time is reached,
The disc recording / reproducing apparatus has a standby mode for stopping functions except for a part of functions and an operation mode for performing operations.
The adjustment result stored in the storage means is also retained in the standby mode,
In the standby mode, at least the disk device is stopped, and the time measuring means and the time monitoring means are in an operating state,
The disk device performs an adjustment process by the adjustment unit when the recording medium is loaded, and stores the obtained adjustment result in the storage unit,
In a state where the recording medium is mounted on the disk device, when the disk recording / playback device shifts to a standby mode and a preset adjustment effective time has elapsed from the time of the transition, the time monitoring unit is configured to perform the drive control. The drive control means starts the disk device, performs adjustment processing by the adjustment means, updates the value by storing the adjustment result in the storage means, stops the disk device again,
The disk recording / reproducing apparatus is characterized in that the next time the disk recording / reproducing apparatus shifts from the standby mode to the operation mode, the disk apparatus starts up using at least a part of the adjustment result stored in the storage means. .   2. The disc recording / reproducing apparatus according to claim 1, wherein when the adjustment effective time further elapses from the time when the adjustment process was performed in the standby mode, the time monitoring means notifies the drive control means, and the drive control means A disk recording / reproducing apparatus, wherein a disk device is activated, adjustment processing is performed by the adjusting means, a value is updated by storing an adjustment result in the storage means, and the disk device is stopped again.   2. The disk recording / reproducing apparatus according to claim 1, wherein a non-volatile memory is used as the storage means.   2. The disk recording / reproducing apparatus according to claim 1, wherein the rotation speed of the recording medium in the adjustment process in the standby mode is lower than the rotation speed when the adjustment process is performed by newly mounting the recording medium on the disk apparatus. A disc recording / reproducing device characterized.   2. The disk recording / reproducing apparatus according to claim 1, wherein when the number of times of adjustment processing in the standby mode exceeds a preset number of times, adjustment processing is not performed until the next transition to the operation mode, and at the time of starting the disk device during the transition to the operation mode. A disc recording / reproducing apparatus characterized by performing adjustment processing.   2. The disc recording / reproducing apparatus according to claim 1, wherein an adjustable time at which adjustment is allowed is set in the standby mode, and adjustment processing is performed at the first adjustable time after the adjustment effective time has elapsed. Playback device.   2. The disc recording / reproducing apparatus according to claim 1, wherein an adjustable time at which adjustment execution is permitted in the standby mode is set, and adjustment processing is performed at the last adjustable time within the effective adjustment time. apparatus. The disk recording / reproducing apparatus according to claim 1, wherein the disk recording / reproducing apparatus includes a temperature measuring unit and a temperature monitoring unit, and holds temperature information when performing the adjustment process in the storage unit,
In the standby mode, the temperature measuring means and the temperature monitoring means are in an operating state,
When the temperature monitoring means detects that the temperature difference is equal to or greater than a preset allowable temperature change value in the standby mode, the temperature at the time of the previous adjustment process is compared with the current temperature, and the drive control means The drive control means starts up the disk device, performs adjustment processing by the adjustment means, stores the adjustment result in the storage means, updates the value, and stops the disk device again. A disc recording / reproducing device characterized.

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