JPH06231527A - Disk drive device - Google Patents

Abstract

PURPOSE:To minimize the consumption of electricity by detecting the type of a disk set in a disk drive device or the kind of data stored in the disk, and setting the automatic turning-OFF time of power in accordance with the detected type and kind. CONSTITUTION:A CPU within a system control reproduces music or activates an application software in accordance with the input from outside and the content of a CD 5, etc. After the start, if inputting from outside through a keyboard or the like is not done for a fixed time or longer, the CPU controls a power control 2 to turn OFF a main power source and stops the supply of power from a main battery 3. Since the power is supplied to the CPU from a backup battery 6, the CPU can resume the operation subsequently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device such as a CD-ROM reproducing device, which is capable of automatically shutting off power in accordance with a non-input state of an external input such as a key operation.

[0002]

2. Description of the Related Art Currently, a compact disc (hereinafter referred to as a CD) for reproducing music in which an audio signal is recorded as digital data.
,), Audio and image data, computer application software, processed data, etc. are released on the market, and disk drive devices that play or execute these disks are also becoming popular. is there. It is possible to record a large amount of data in these CDs and CD-ROMs, and therefore, in particular, various types of information are often mixed and stored in CD-ROMs.

Further, in the CD-ROM device, various reproduction and display functions according to the type of information are realized in cooperation with a host computer connected to the device or a microcomputer integrated with the device. it can.
Furthermore, in the case of a music reproducing CD device or a CD-ROM device,
Miniaturization and low power consumption are progressing, and products that are portable and operate for several hours on batteries have been developed.

Such a portable type generally has an auto power-off mode in which the main power source of the apparatus is automatically turned off when there is no input from the outside for a certain time or more in order to suppress wasteful consumption of the battery. It has become a target. By the operation of this auto power off mode, useless consumption of the battery can be suppressed.

In a medium having various information such as a CD-ROM, the input operation on the user side differs depending on the content. For example, when only playing music, the power can be turned off in a relatively short time after the performance ends, but when executing a computer application or the like, input from the outside requires several tens of minutes. There is a problem in turning off the power even if it is not done.

However, in the above-mentioned conventional music reproducing CD device or CD-ROM device, the set time for auto power-off is fixed at a single value, and is the CD-ROM device reproducing a music CD? , It is difficult to change depending on whether the CD-ROM is being reproduced or the software reproduced by the CD-ROM device, that is, the type of data. Therefore, for example, when the reproduction of the music CD or the reproduction of only the music data is executed by the CD-ROM device, the power is not turned off for a long time even if the reproduction is completed,
There was a problem of wasting power. This problem is particularly serious in battery-powered devices.

[0007]

As described above, according to the conventional disk drive device such as the CD device for reproducing music or the CD-ROM device, the set time of the auto power-off cannot be changed, and the disk or data to be used cannot be changed. Depending on the type, there was a case where the set time was not eligible.

Therefore, there is a problem that useless power is consumed if the auto power-off setting time is too long. Especially in the case of a battery-powered disk drive device,
There is a problem that the useless battery is consumed and the driving time is shortened.

Therefore, the present invention eliminates the above drawbacks,
The purpose of the disk drive device is to always set an optimum auto power off time to minimize power consumption.

[0010]

In order to achieve the above object, the present invention has a function of reproducing two or more types of discs among a plurality of discs that are distinguished according to the type of recorded data. In a disc drive device having, read the data of the reproduced disc,
The first detection means for detecting the type of the disc, the second detection means for detecting that an external input signal relating to the reproduction operation of the disc is not input for a predetermined time, and the second detection means. Power cutoff means for cutting off the power supply of the disk drive device according to the result; and control means for variably controlling the fixed time in the power cutoff means according to the type of the disk detected by the first detection means. It is equipped with.

[0011]

With this structure, the type of the disk set in the disk drive device and the type of data stored in it are determined, and the auto power off time is set according to the type and type. By doing so, it becomes possible to suppress wasteful consumption of electric power and prolong the driving time.

[0012]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The system control 1 including a CPU controls the power control 2 to turn on the main power, and the main battery 3 supplies power to the CD control unit 4. C
The D control unit 4 drives a music disc or a CD-ROM disc 5 (hereinafter referred to as a CD or the like), reads a header and data, and outputs the header and data to the CPU in the system control 1.

The CPU in the system control reproduces music or activates application software or the like according to the input operation from the outside and the contents of the CD 5 or the like. After the startup, if there is no operation such as a key input from the outside for a certain time or longer, the CPU controls the power control 2 to turn off the main power supply, and stops the power supply from the main battery 3. CPU
Since the power is supplied from the backup battery 6, the operation can be continuously resumed at the time of restart. The above is an example of the operation including the conventional example, but in this embodiment, a sequence for setting a fixed time of power-off shown below is added. The CPU reads the Q channel data in the subcode header recorded together with the data on the CD 5 or the like.

FIG. 2 shows the format of the Q channel data. One subcode (9
8 bit) is obtained. Here, S of 7 in FIG.
φ and S1 are synchronization signals, 8 CONTROL is the type of data, 9 ADR is a header indicating the contents of DATA-Q, 1
DATA-Q of 0 is frame information, and CRC of 11 is an error detection code other than the synchronization signal. 8 CONTROL
Has the same format as all recorded areas of the CD-ROM, and has the type shown in FIG.

The CPU is the CONTROL of the reproduction track.
8 is read, the CRC 11 is checked, the same data is confirmed in the same track, and it is determined whether it is a music track or a data track. In the case of a track on which a music signal is recorded, since there is little data to be held for playing music, the auto power off time is set to several minutes.

If it is a track on which data is recorded, the contents will be further narrowed down. The standards spread from CD include CD-ROM, CD-ROM XA, and CD-I. In CD-ROM and CD-ROM XA, the header content of application software is not standardized and is determined by the manufacturer, but in the execution software, a title representing the content is generally described. Is.

With this title, the CPU sets the time for auto power off. As an example, if the image data is displayed, input from the outside is done in a short time, so it takes a few minutes. If it is data search or game software, it will take 5-10 minutes. If so, set the time for auto power off, such as unlimited.

FIG. 3 shows a flow chart for explaining the above sequence. A CD 5 or the like is set in the disk drive device and reproduction is started (12). If there is no power-off time in the read data, it is checked whether the content title is written (13, 14). If the content title is not written, the type of the designated track is read (15). Next, it is judged whether it is a music reproducing CD or a CD-ROM. If it is a CD-ROM, the content title of the designated track is read (16, 17). Next, the data type is determined and the content title is read (18, 19).
The power-off time is set according to the content title read in 19 (20).

If the power-off time is written in the CD 5 or the like, the power-off time is set accordingly (21). Also, if the content title is written,
Processing is performed by omitting 15 to 17 (14). In the case of the music reproduction CD in 16, the power off time for music reproduction is set (22).

Next, it is judged whether or not there is an external input such as a key input for the power-off time set in 20 to 22 (23). Here, if there is an external input,
Return to 13 and repeat the process. When there is no external input, the time when there is no input is compared with the power-off time set for each to check if they match. If they match, the power is cut off (25, 26).

Next, another embodiment of the present invention will be described with reference to FIG. This embodiment is a modification of the embodiment described with reference to FIG. In addition to the above-mentioned embodiment, it has a function of writing the title by using a writable disc. It also has a function of writing the auto power off time as data.

FIG. 4 is a flow chart diagram illustrating the write process of this embodiment. The predetermined track data of the CD 5 or the like is detected, and the content title designated by the user is written (26 to 29). If the content title is not specified by the user, the power-off time specified by the user is written (30, 31). If the power off time is not specified by the user, the write operation is finished (32). According to this embodiment, in addition to the initially set time, it is possible to set an arbitrary auto power off time after purchasing the CD 5 or the like.

[0024]

As described above, according to the present invention, power consumption can be minimized by always setting an appropriate auto power off time.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a format structure of Q channel data.

FIG. 3 is a flowchart of a sequence according to an embodiment.

FIG. 4 is a flowchart of a sequence of another embodiment of the present invention.

[Explanation of symbols]

1 ... System control, 2 ... Power control,
3 ... Main battery, 4 ... CD control unit.

Claims (5)

[Claims] 1. A disc drive device having a function of reproducing any two or more types of discs discriminated according to the type of recorded data, and reading the reproduced disc data. A first detecting means for detecting the type of the disc; a second detecting means for detecting that an external input signal relating to the reproducing operation of the disc is not input for a predetermined time or more; and the second detecting means. And a control means for variably controlling the fixed time in the power cut-off means according to the type of the disk detected by the first detection means. A disk drive device comprising: 2. A disc drive device for reproducing a disc containing a plurality of types of data, the first detection means for detecting a title representing the type of the data from the reproduced data, and a reproduction operation of the disc. Second detection means for detecting that an input signal from the outside is not input for a predetermined time or more; power cutoff means for cutting off the power supply of the disk drive device according to the result of the second detection means; And a control means for variably controlling the fixed time in the power cutoff means according to the title detected by the detection means. 3. A disc drive device having a function of reproducing a plurality of data recorded on any two or more types of the discs discriminated according to the type of the recorded data. A first detecting means for reading the data of the disc and detecting a type of the disc; a second detecting means for detecting a title indicating the type of the data from the reproduced data; and a reproducing operation of the disc. Third detecting means for detecting that an input signal from the outside is not input for a predetermined time or more; power cutoff means for cutting off the power supply of the disk drive device according to the result of the third detecting means; Alternatively, depending on the type of the disc or the title detected by the second detecting means, Disk drive apparatus characterized by comprising a control means for varying control. 4. The disc drive apparatus according to claim 2, further comprising a unit for writing the title on the disc. 5. A disc drive device having a function of reproducing a plurality of data recorded on any two or more types of discs discriminated according to the type of the recorded data. It is provided with a unit for writing time data to the disc, a unit for reading the time data written by the writing unit, and a power shutoff unit for shutting off the power supply of the disc drive device according to the time data. Disk drive device.