JP2007179628A - On-vehicle audio apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save energy by interrupting power supply to a construction part irrelevant to recording when an ignition key is turned OFF during the recording. <P>SOLUTION: The apparatus is provided with: a reproducing means; a recording means for recording audio data reproduced by the reproducing means; an amplifying means for amplifying the audio data reproduced by the reproducing means so as to output them in a specific volume; a display means for displaying information on the audio data; a detecting means for detecting ON/OFF of the ignition key; a power supply means for supplying the reproducing means, recording means, amplifying means, and display means with power; and a control means for interrupting the power supply to the amplifying means and display means when the audio data being reproduced by the reproducing means are recorded by the recording means and the detecting means detects OFF from ON, and instructing the power supply means to continue supplying the reproducing means and recording means with power. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle audio apparatus.

  Conventionally, in an in-vehicle audio device, if an ignition key is turned off during recording of music or the like, the power to the in-vehicle audio device is cut off, and the music may not be recorded normally until the end.

Therefore, based on the judgment that the recording is in progress when the ignition key is turned off, the power is continuously supplied to the in-vehicle audio device until the currently recorded song is finished, and the recording is terminated at the same time as the song is finished. A device for shutting down was devised. (For example, see Patent Document 1)
JP 2000-357363 A (FIG. 2, paragraph)

  However, in the in-vehicle audio device described in Patent Document 1, recording is performed with the ignition key turned off, that is, with the engine stopped, and thus the in-vehicle audio device is supplied with power as usual. When not rotating, the battery is not charged. Therefore, if recording is continued for a long time, the battery may run out.

  In order to solve the above problems, an in-vehicle audio apparatus according to the present invention includes a reproducing unit that reproduces audio data, a recording unit that records audio data reproduced by the reproducing unit, and an audio data reproduced by the reproducing unit. Amplifying means for outputting the information at a predetermined volume; display means for displaying information relating to the audio data; detecting means for detecting ON / OFF of an ignition key; the reproducing means; the recording means; Power supply means for supplying power to the display means and the display means, and when the audio data being reproduced by the reproducing means is recorded by the recording means and when the detecting means detects from ON to OFF Power supply to the reproducing means and the recording means is cut off from power to the amplifying means and the display means. Characterized in that it comprises a control means for instructing to the power supply unit to continue.

  In addition, the information processing apparatus includes a notification unit that notifies the power supply cutoff to the amplification unit and the display unit.

  Further, the notification means is an LED.

  According to the present invention, even if the ignition key is turned off during recording in the in-vehicle audio apparatus, power is not supplied to portions not related to recording, so that the battery can be prevented from running out.

  An embodiment of the present invention will be described below with reference to the drawings.

  First, the configuration of the main part of the in-vehicle audio apparatus 1 according to the present invention will be described with reference to the block diagram of FIG.

  As shown in FIG. 1, in the in-vehicle audio apparatus 1, the control unit 11 controls each unit based on a program stored in the ROM 12. For example, the reproduction unit 13 reproduces audio data recorded on a CD and various types of information related to the song number and reproduction time of the audio data, and outputs them to the control unit 11 or the recording unit 14. The recording unit 14 records the audio data output from the reproducing unit 13 on a recording medium such as an HDD. The display unit 15 is a liquid crystal display, and displays, for example, the song number and playback time of the audio data being played back by the playback unit 13. The operation unit 16 is a switch for instructing reproduction or recording of audio data when pressed by the user. The amplifier 17 receives the audio data reproduced by the reproducing unit 13 as input to the control unit 11, amplifies the audio signal output from the control unit 11 to a predetermined volume, and the vehicle to which the in-vehicle audio device 1 is attached. Is output to a speaker (not shown). The LED 19 is lit in response to an instruction from the control unit 11 and is recorded when audio data being reproduced by the reproduction unit 11 is recorded by the recording unit 14 and when an ACC detection unit 21 described later detects ON to OFF. Inform the user that it is inside.

  The power input unit 20 is connected to a car battery (not shown), and supplies power from the car battery to each part of the in-vehicle audio device 1. The ACC detection unit 21 detects ON / OFF of an ignition key (not shown) provided in the vehicle to which the in-vehicle audio device 1 is attached, and outputs the detection result to the control unit 11.

  Next, operation | movement of the control part 11 of the vehicle-mounted audio apparatus 1 is demonstrated using the flowchart shown in FIG.

  The control unit 11 detects whether or not the ignition key is turned off based on the output of the ACC detection unit 21 (step S1). When it is detected in step S1 that the ignition key is turned off (Y in step S1), the recording unit 14 determines whether or not audio data is being recorded (step S2), and recording is in progress. If not (N in Step S2), the power supply from the power input unit 20 is cut off and the in-vehicle audio apparatus 1 is stopped.

  If recording is being performed in step S2 (Y in step S2), the audio data reproduced by the reproducing unit 13 is not recorded in the recording unit 14, and is not necessary for the display unit 15, the operation unit 16, and the amplifier 17. The supply of power is cut off (step S3). Then, the LED 19 is turned on to notify the user that recording is in progress (step S4).

  After that, it is determined whether or not the playback of the currently playing (or recording) song has ended based on various information related to the song number, playback time, etc. recorded on the CD (step S5). In such a case (Y in step S5), the power supply from the power input unit 20 is cut off, and the in-vehicle audio device 1 is stopped.

  In the above embodiment, the case where a CD is played and recorded on the HDD has been described. However, the present invention is not limited to this. For example, audio data recorded on a small removable storage medium such as a flash memory is recorded. It may be played back, or the audio data may be recorded on a small removable storage medium such as a flash memory.

  In this way, when recording is continued even if the ignition key is turned off during recording, power is not supplied to the components not related to recording, so that power consumption can be reduced and battery power can be prevented. Can do.

It is the block diagram which showed the principal part structure inside the vehicle-mounted audio apparatus of this invention. It is a flowchart figure which shows operation | movement of the control part in the vehicle-mounted audio apparatus of this invention.

Explanation of symbols

11 Control unit 12 ROM
13 Playback unit 14 Recording unit 15 Display unit 16 Operation unit 17 Amplifier 18 LED
19 Power input unit 20 ACC detection unit

Claims (3)

  Reproduction means for reproducing audio data, recording means for recording audio data reproduced by the reproduction means, amplification means for amplifying the audio data reproduced by the reproduction means to output at a predetermined volume, and Display means for displaying information relating to audio data; detection means for detecting ON / OFF of an ignition key; power supply means for supplying power to the reproduction means, the recording means, the amplification means, and the display means; When the audio data being played back by the playback means is recorded by the recording means and when the detection means detects from ON to OFF, the power to the amplification means and the display means is shut off and the playback is performed. And control means for instructing the power supply means to continue supplying power to the recording means. Car audio system, characterized in that the.   The in-vehicle audio apparatus according to claim 1, further comprising a notification unit that notifies the amplification unit and the display unit of power-off.   The in-vehicle audio apparatus according to claim 2, wherein the notification means is an LED.

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