JP2001147784A - Automatic deflagging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically perform a deflagging processing to a recording medium, without being affected by the residual amount of a secondary battery. SOLUTION: At detection of the voltage change of a charging state detection point 2d and detecting charging start, a CPU 3d starts the deflagging processing of the data recording memory 3f of a deflagging object. Also, at detection of charge interrupt, if it is in the deflagging processing, the deflagging processing is interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an automatic defragmentation apparatus for automatically continuation (defragmentation) of a fragmented (flagged) recording area of a recording medium.

[0002]

2. Description of the Related Art Generally, in a nonvolatile recording medium such as a hard disk drive (HDD) or a semiconductor memory which is a recording medium of a computer, when data is repeatedly recorded and erased, the data is recorded in a continuous recording area. Instead, the recording area is fragmented (flagged). The reason for this is that the recording data length and the erasing data length are different and cannot be avoided. As flagging progresses, a table for managing the recording area becomes larger, and the number of accesses increases, so that the processing speed decreases. As a conventional method for preventing this, for example, in a personal computer, a defragmentation program is automatically activated by a user operation or at a predetermined time interval depending on a system, and a flagged recording area is set. Is automatically known by a defragmentation program.

[0003]

By the way, in a portable electronic device which is operated by a battery and uses a non-volatile recording medium such as an HDD or a semiconductor memory, similarly, when recording and erasing of data are repeated, the recording area is reduced. Are flagged, so defragmentation is essential. However, in the defragmentation process, since a large amount of data is written and read between the non-volatile recording medium and the RAM, considerable processing time and processing power are required. The question is when to perform automatic defragmentation. Further, the defragmentation process cannot be performed at the same time as other processes, and therefore cannot be performed while the user is using the portable electronic device.

Accordingly, an object of the present invention is to provide an automatic defragmenter that can automatically perform a defragmentation process without being affected by the remaining amount of a secondary battery.

[0005]

In order to achieve the above object, the present invention detects the start of charging of a secondary battery and starts a defragmentation process. That is, according to the present invention, there is provided an automatic defragmentation device for an electronic device operated by a secondary battery, comprising: means for detecting a start of charging of the secondary battery; Means for initiating a defragmentation process on a recording medium inside or outside of the apparatus.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a first embodiment of the automatic defragmentation device according to the present invention.

FIG. 1 shows a charging device 1 as a first embodiment.
2 shows a configuration in which the portable electronic device 3 and the portable electronic device 3 are provided in different housings. The charging device 1 has a charging current output terminal 1 a and a charging current ground to connect the charging device 1 and the portable electronic device 3. A terminal 1b is provided, and the portable electronic device 3 is provided with a charging current input terminal 3a and a charging current ground terminal 3b. The internal configuration of the portable electronic device 3 will be described. The charging current input terminal 3a is connected to the backflow preventing commutator 2a.
The charging state detection point 2d is connected to the positive terminal of the secondary battery 3c via the backflow preventing rectifier 2b, and is connected to one end of the discharging resistor 2c and the input of the CPU 3d. Connected to port.

The internal bus 3g has a CPU 3d and an R
The AM 3e is connected to a data recording memory 3f to be defragmented.
d stores a program for performing a defragmentation process. Note that the data recording memory 3f to be defragmented may be built-in or external such as a removable card type memory.

In such a configuration, when the charging device 1 and the portable electronic device 3 are not connected, the secondary battery 3c
Is supplied to necessary circuits in the portable electronic device 3,
At this time, the charge state detection point 2d is connected to the backflow prevention commutator 2b.
And the voltage = 0 by the discharge resistor 2c.

On the other hand, when the charging device 1 and the portable electronic device 3 are connected, the charging current from the charging device 1 is supplied to the secondary battery 3c via the backflow preventing rectifiers 2a and 2b.
And the secondary battery 3c is charged and supplied to necessary circuits in the portable electronic device 3. At this time,
Since the charge state detection point 2d becomes higher, the CPU 3d starts the defragmentation process when detecting the voltage change at the charge state detection point 2d and detecting the start of charging. In this defragmentation process, the fragmented data on the data recording memory 3f to be defragmented is saved in the RAM 3e via the internal bus 3g, and then rewritten so as to be continuous on the data recording memory 3f. . Further, when the charging device 1 and the portable electronic device 3 are disconnected, the CPU 3d detects a voltage change at the charging state detection point 2d to detect the interruption of charging, and interrupts the defragmentation process during the defragmentation process. I do.

FIG. 2 shows a charging device 1 according to a second embodiment.
And the portable electronic device 3 are provided in the same housing. The same components as those in FIG. 1 are denoted by the same reference numerals. The charging device 1 is provided with an AC power terminal 1c for connecting to a commercial power source.
And the circuit of the portable electronic device 3 are always connected. In such a configuration, when the charging device 1 is not connected to a commercial power source, the power source of the secondary battery 3c is
In this case, the charge state detection point 2d is maintained at a voltage of 0 by the backflow prevention rectifier 2b and the discharge resistor 2c.

On the other hand, when the charging device 1 is connected to a commercial power supply, the charging current from the charging device 1 is supplied to the secondary battery 3c via the backflow preventing rectifiers 2a and 2b, and The secondary battery 3c is charged and supplied to necessary circuits in the portable electronic device 3. At this time, since the charge state detection point 2d becomes higher, the CPU 3d starts the defragmentation process when detecting the voltage change at the charge state detection point 2d and detecting the start of charging. Further, when the charging device 1 is disconnected from the commercial power supply, the CPU 3d detects a voltage change at the charging state detection point 2d to detect interruption of charging, and interrupts the defragmentation process during the defragmentation process.

An example of the portable electronic device 3 will be described. 2. Description of the Related Art In recent years, as a system for selling content data (software) such as music to users, instead of using paid and tangible recording media such as CDs (compact discs) and DVDs (digital versatile discs), payment is paid. A content sales system or a network distribution system that transfers to a recording medium such as a hard disk or a semiconductor memory in a user's player via an intangible network such as a store-installed terminal or the Internet and reproduces the recording medium under the condition is attracting attention. I have.

As an example of a content sales system,
A method is conceivable in which content data is transferred from a host to a store-installed terminal via a satellite communication line or a public telephone line, and further transferred from the store-installed terminal to the player. As another example, a method via the Internet, in which content data is transferred from an Internet server (host) to a player via the Internet and an Internet client (user personal computer), can be considered.

By the way, a portable player (music distribution terminal) used in such a content sales system.
Since the recording and erasing of music content is frequently performed on the recording medium on the side, it is easy to make a flag. Therefore, by applying the present invention to a music distribution terminal, the defragmentation process can be automatically performed without being affected by the remaining amount of the secondary battery.

[0016]

As described above, according to the present invention, 2
Since the start of charging of the secondary battery is detected and the defragmentation process is started, the defragmentation process of the recording medium can be automatically performed without being affected by the remaining amount of the secondary battery.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of an automatic defragmentation device according to the present invention.

FIG. 2 is a configuration diagram illustrating an automatic defragmentation device according to a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Charger 2d Charge state detection point 3 Portable electronic device 3c Secondary battery 3d CPU (charge start detection means, charge interruption detection means,
Defragmentation processing means, defragmentation processing start / interruption means) 3f Data recording memory (recording medium)

Claims (2)

[Claims] 1. An automatic defragmentation device for an electronic device operated by a secondary battery, comprising: means for detecting a start of charging of the secondary battery, and a device for detecting the start of charging of the secondary battery. Means for initiating defragmentation of an internal or external recording medium. 2. The automatic defragmentation device according to claim 1, wherein the defragmentation process is interrupted during the defragmentation process when the interruption of the charging of the secondary battery is detected.