JPH0765545A - Mini-disk player - Google Patents

Abstract

PURPOSE:To protect recorded contents which are recorded before a service interruption from being wasted by a method wherein the recording position information of main data at the time of the service interruption is recorded in a user TOC under the control of the user TOC. CONSTITUTION:A mini-disk player 10 has a system controller which is composed of a microcomputer containing the operation control means of the player 10 and the editing control circuit 5 of a user TOC. The detection output of an AC power supply interruption detecting circuit 3 and the detection output of a recording state detecting circuit 4 are supplied to the editing control circuit 5 and, if it is detected that the AC power supply is interrupted in the recording state, the circuit 5 records the recording position information of main data on a mini-disk in the user TOC. Further, while the main data are recorded, the circuits 4 and 5 are operated by a backup battery 2 and, if both the service interruption and the recording state are detected, the recording position information of the main data at the time of the service interruption is recorded in the user TOC under the control of the user TOC, so that the contents recorded before the service interruption can be protected from being wasted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mini disk player, and more particularly to a mini disk player which records the recording position information of the main data recorded at that time in a user TOC even when a power failure occurs.

[0002]

2. Description of the Related Art In a mini disc player, a track number (track number) is provided on the outer peripheral side following a lead-in area of a mini disk in order to facilitate the user to update the recorded content, select the recorded content at the time of playing, and read it. )
A recording area is provided in which management information such as information and other recorded contents is recorded. In the case of a recordable mini disc, this recording area is called a user TOC area. In this specification, information recorded in the program area up to the lead-out area following the user TOC area is referred to as main data.

Here, the recording start position information on the mini disc of the main data recorded on the mini disc and the recording end position on the mini disc are recorded in the part area of the user TOC area. As a result, it is configured so that selection on recording can be easily performed.

[0004]

However, when the AC power source fails during recording of the main data on the mini disk, recording is disabled and the recording position information at the time of power failure is processed. There wasn't. For this reason, there is a problem that the recorded contents which have been recorded up to the recording position at the time of power failure are wasted.

The present invention solves the above problems and provides a mini disk player in which the recorded contents of the main data, which was being recorded at the time of the AC power failure, is not wasted until the power failure. To aim.

[0006]

A mini disk player of the present invention comprises a backup battery, a power failure detection circuit for detecting AC power failure, a recording detection circuit for detecting that main data is being recorded, and a power failure detection. User TOC for recording to the user TOC the recording position information of the main data on the mini disk when the circuit detects a power failure and the recording circuit detects that the recording is in progress
And edit control means.

[0007]

In the mini disk player of the present invention, recording to the main data is disabled when the AC power supply fails, but the power failure detection circuit, the recording detection circuit, and the user TOC editing control means are backed up by a backup battery, When the power failure is detected and it is detected that the main data is being recorded, the recording position information of the main data at the time of the power failure is recorded in the user TOC under the control of the user TOC. Therefore, the recording start position information and the recording end position information are recorded in the user TOC, and it is possible to prevent the recorded contents up to the time of the power failure from being wasted.

[0008]

EXAMPLES The present invention will be described below with reference to examples. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a mini disk player of this embodiment. In the mini disc player 10,
A power supply circuit 1 for converting an AC power supply into a desired DC voltage and a backup battery 2 for backup in the event of a power failure, etc., to supply power for the operation of the mini disk player 10 and to interrupt the AC power supply. A power failure detection circuit 3 for detecting a power failure and a recording-in-progress detection circuit 4 for detecting that the main data is being recorded are detected to detect a power failure of the AC power supply and writing of main data to the mini disk.

Further, the mini disc player 10 is provided with a system controller comprising a microcomputer including the operation control means of the mini disc player and the edit control circuit 5 of the user TOC, and the detection output of the AC power failure detection circuit 3 and The detection output of the during-recording detection circuit 4 is supplied to the user TOC editing circuit 5, and when the editing circuit 5 detects that the recording is being performed at the time of AC power failure, the recording position information on the mini disk of the main data is output to the user. Record in TOC.

The mini disc player 10 of this embodiment functions as a normal mini disc player when the AC power supply is energized. Backup battery 2 in case of power failure
Is backed up and the predetermined operation is continued.
However, the main data cannot be recorded on the mini disc. When the AC power supply fails, it is detected by the power failure detection circuit 3 and the main data cannot be recorded.

However, during the recording of the main data, it is detected by the during-recording detection circuit 4 that the during-recording detection circuit 4 and the editing control circuit 5 are backed up by the backup battery 2 and a power failure occurs. When it is detected that the main data is being recorded, the recording position information of the main data at the time of power failure is recorded in the user TOC under the control of the user TOC. Therefore, the recording start position information and the recording end position information are recorded in the user TOC, and the recorded contents until the power failure is not wasted.

[0013]

As described above, according to the mini disk player of the present invention, when it is detected that the AC power source has a power failure and that the main data is being recorded, the recording position of the main data on the mini disk at the time of the power failure is detected. Since the information is recorded in the user TOC under the control of the editing control means, the recording start position information and the recording end position information are recorded in the user TOC, and the recorded contents up to the time of power failure are wasted. Has the effect of being prevented from becoming.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a mini disc player according to an embodiment of the present invention.

[Explanation of symbols]

 2 Backup battery 3 Power failure detection circuit 4 Main data recording detection circuit 5 Editing control circuit

Claims (1)

[Claims] 1. A backup battery, a power failure detection circuit that detects AC power failure, a recording detection circuit that detects that main data is being recorded, and a power failure detection circuit that detects a power failure and a recording status detection circuit. A user T who causes the user TOC to record the recording position information of the main data on the mini disc when it is detected that the recording is being performed.
A mini disk player comprising an OC edit control means.