Optical disk audio frequency playing control device in automobile audio frequency device and its method
An optical disc and audio technology, which is applied to the recording of information on the disc, instruments, magnetic recording, etc., and can solve the problems that the playback audio cannot be output normally, and the user cannot enjoy the high-quality audio normally.
Inactive Publication Date: 2009-09-02
LG ELECTRONIC (HUIZHOU) CO LTD
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Problems solved by technology
[0007] But, the optical disc playing device that comprises in the above-mentioned car audio equipment, because utilize the optical pick-up 11 to read the audio data recorded on the optical disc 10, so when the automobile travels at a high speed on a relatively uneven road, due to the optical pick-up 11 There will be vibration, and the playback audio cannot be output normally, so there will be a problem that users cannot normally enjoy high-quality audio
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[0016] figure 2 It is a structural diagram of the disc playback control device in the car audio device of the present invention. The device comprises an optical pickup 11, a radio frequency signal processing unit (RF) 12, a decoding unit 13, a digital signal processing unit (DSP) 14, and a control device (the control device referred to in the embodiment of the present invention is a microprocessor 15 as Example) and memory 16, and also includes a sampler 20 for sampling the playback audio, and a memory 21 for storing the sampled audio data, such as a flash memory card (Flash).
[0017] In addition, after the above-mentioned microprocessor 15 is set in the optical disc pre-play (pre-play) mode newly defined in the present invention, the lead-in area of the optical disc 10 inserted into the device is retrieved, and at the same time, the guide information recorded in the lead-in area is read. , and then the record is stored on the above-mentioned flash memory card 21.
[001...
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The present invention relates to an optical disc audio playback control device and a method thereof in an automobile audio device. In an automobile audio player provided with an optical disc player such as a CD player, the data read and played from an optical disc is not played externally but It is to sample it, and then store it on the flash memory card set in the device, and at the same time, read and play the audio recorded and stored in the above flash memory card instead of reading and playing the audio recorded on the CD, so that it can be read and played at high speed in the vehicle. When driving or the road is uneven, the audio of the disc stored in the flash memory card can be played and output normally, so the driver can listen to the played audio normally.
Description
(1) Technical field [0001] The present invention relates to an optical disc audio playback control device and its method, especially to prevent the disc from being played due to the excessive speed of the vehicle or poor road conditions in a car audio device including a CD player and other optical disc players. The invention relates to a disc audio playing control device and a method thereof in a car audio device based on the abnormal output of audio. (2) Background technology [0002] Recently, various types of optical disc playback devices such as CD players are installed among the car audio devices installed in automobiles, so that car drivers can enjoy high-quality audio recorded on optical discs such as CDs while driving a vehicle. [0003] In addition, the CD player set in the above-mentioned car audio player includes: figure 1 As shown, an optical pickup 11, a radio frequency signal processing unit (RF) 12, a decoding unit 13, a digital signal processing unit (DSP) 1...
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IPC IPC(8): G11B19/00G11B31/00
Inventor 姜敬元
Owner LG ELECTRONIC (HUIZHOU) CO LTD