KR970017409A - How to play digital audio (DA) tracks on a CD player - Google Patents

How to play digital audio (DA) tracks on a CD player Download PDF

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Publication number
KR970017409A
KR970017409A KR1019950029871A KR19950029871A KR970017409A KR 970017409 A KR970017409 A KR 970017409A KR 1019950029871 A KR1019950029871 A KR 1019950029871A KR 19950029871 A KR19950029871 A KR 19950029871A KR 970017409 A KR970017409 A KR 970017409A
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KR
South Korea
Prior art keywords
track
information
sound source
player
digital audio
Prior art date
Application number
KR1019950029871A
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Korean (ko)
Other versions
KR100340796B1 (en
Inventor
강병구
Original Assignee
구자홍
Lg 전자 주식회사
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Priority to KR1019950029871A priority Critical patent/KR100340796B1/en
Publication of KR970017409A publication Critical patent/KR970017409A/en
Application granted granted Critical
Publication of KR100340796B1 publication Critical patent/KR100340796B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

본 발명은 CD(Compact Disc) 플레이어에 관한 것으로, 특히 CD 플레이어의 기록매체인 CDROM이나 CDi-TITLE의 트랙에 DA(Digital Audio)정보로 수록되어 있는 음원정보를 판독하여 재생할 수 있도록 한 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD (Compact Disc) player, and more particularly to a CD (CD) or a CDi-TITLE track, which can read and play sound source information contained in DA (Digital Audio) information. The present invention relates to a method of playing a digital audio track of a player.

본 발명에 따른 CD 플레이어의 회전판에 안치된 CD로부터 음원정보가 DA트랙으로 설정되어 있는 지의 여부를 검출한 후 CD트랙으로 설정된 음원정보로 검출되면 TOC영역에 대한 정보를 검출하여 가상 레지스터에 설정한 후 재생을 위한 트랙의 순서를 정리한다. 이후 음원의 재생을 원하는 키 신호를 검출하면 설정된 TOC 정로에 따라 음원정보를 재생하여 송출하므로 DA트랙에 설정된 음원정보를 노이즈의 발생없이 원음에 근접하게 재생하여 CD 플레이어의 사용에 신뢰성이 제공된다.After detecting whether the sound source information is set to the DA track from the CD placed on the rotating plate of the CD player according to the present invention and detecting the sound source information set to the CD track, the information on the TOC area is detected and set in the virtual register. Arrange the order of tracks for later playback. After detecting a key signal for reproducing the sound source, the sound source information is reproduced and transmitted according to the set TOC path, so that the sound source information set on the DA track is reproduced close to the original sound without generating noise, thereby providing reliability in the use of the CD player.

Description

시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법How to play digital audio (DA) tracks on a CD player

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따라 TOC 정보영역에 수록되는 서브 코드의 데이타 구성도,2 is a data structure diagram of a sub code contained in a TOC information area according to the present invention;

제3도는 본 발명에 따른 CD 플레이어에서 CD-ROM에 수록된 디지탈 오디오(DE) 트랙을 재생하기 위해 TOC 정보를 판독하기 위한 흐름도,3 is a flowchart for reading TOC information for playing a digital audio (DE) track recorded on a CD-ROM in a CD player according to the present invention;

제4도는 본 발명에 따른 CD 플레이어에서 판독된 TOC 정보의 재 처리에 대한 흐름도.4 is a flowchart for reprocessing TOC information read in a CD player according to the present invention.

Claims (5)

CD 플레이어의 음원정보 재생방법에 있어서, 재생을 위해 회전판에 안치된 CD의 정보영역을 판독하여 TOC 정보영역이 설정되어 있는 트랙이 존재하는 지의 여부를 검출하는 제1과정과, 상기 제1과정 실행에서 TOC 정보영역이 검출되면 검출된 TOC 정보로부터 디지탈 오디오(DA) 트랙에 설정된 음원정보의 설정된 데이타가 CDi-TITLE에 대한 것인지 또는 CD-ROM에 대한 것인지의 여부를 검출하는 제3과정과, 상기 제3과정에서 검출되는 정보에 따라 재생을 위한 디지탈 오디오(DA)트랙의 순서를 설정하는 제4과정과, 상기 제4과정 실행 후 키입력수단으로부터 인가되는 재생키의 신호에 따라 선곡된 트랙을 판독하여 디지탈 오디오(DA)트랙으로 설정된 음원정보를 재생한 후 사용자에게 송출하는 제5과정을 포함하는 것을 특징으로 하는 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법.A method of reproducing sound source information of a CD player, the method comprising: reading the information area of a CD placed on a rotating plate for reproduction and detecting whether or not a track having a TOC information area is set; A third step of detecting whether the set data of the sound source information set in the digital audio (DA) track is for the CDi-TITLE or the CD-ROM from the detected TOC information when the TOC information area is detected; A fourth step of setting a sequence of digital audio (DA) tracks for playback according to the information detected in the third step; and a track selected according to a signal of a playback key applied from a key input means after executing the fourth step. And a fifth process of reading and reproducing the sound source information set to the digital audio (DA) track and transmitting it to the user. O (DA) track playback method. 제1항에 있어서 상기 제2과정에서 가상 레지스터에 설정되는 데이타는 재생을 위한 시작트랙에 대한 정보와 음원의 재생이 종료되는 마지막 트랙에 대한 정보와, 음원의 재생이 종료되는 시간의 정보와, CDi의 플레그 셋팅여부 및, CDROM 플레그의 셋팅여부가 설정되는 것을 특징으로 하는 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법.The method of claim 1, wherein the data set in the virtual register in the second process includes information about a start track for playback, information about a last track at which playback of a sound source is finished, information about a time at which playback of a sound source is finished, A CD audio playback method of a CD player, characterized in that CDi flag setting and CDROM flag setting are set. 제1항에 있어서, 상기 제3과정의 검출에서 CDi의 플레그로 셋팅된 정보이면 현재의 트랙이 시작트랙과 종료를 위한 트랙의 사이에 위치되는 지의 여부를 검출하여 트랙에 관한 정보를 설정하며 CD게 설정된 디지탈 오디오(DA)트랙의 음원정보를 재생할 수 있는 지의 여부를 셋팅하는 것을 특징으로 하는 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법.The method of claim 1, wherein if the information is set to the CDi flag in the detection of the third process, it is detected whether the current track is located between the start track and the track for the end, and sets information on the track. And setting whether or not the sound source information of the digital audio (DA) track that has been set can be played. 제1항에 있어서, 상기 제3과정의 검출에서 CD-ROM의 플레그로 검출되면 현재의 트랙정보가 시작트랙과 종료를 위한 트랙의 사이에 위치하는 지의 여부를 검출하여 트랙에 관한 정보를 설정하며 CD-ROM에 설정된 디지탈 오디오(DA) 트랙의 음원정보를 재생할 수 있는 지의 여부를 셋팅하는 것을 특징으로 하는 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법.The method of claim 1, wherein if the CD-ROM flag is detected by the third process, the track information is set by detecting whether the current track information is located between the start track and the track for ending. A digital audio (DA) track playback method of a CD player, characterized by setting whether or not sound source information of a digital audio (DA) track set in a CD-ROM can be reproduced. 제1항에 있어서, 상기 가상 레지스터에 설정된 TOC 정보에서 데이타 비트를 통해 재생을 위한 트랙의 순서로 재정리하는 것을 특징으로 하는 시디(CD) 플레이어의 디지탈 오디오(DA) 트랙 재생방법.The digital audio (DA) track playback method of a CD player according to claim 1, characterized in that the CDC player is rearranged in order of a track for playback through data bits in the TOC information set in the virtual register. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950029871A 1995-09-13 1995-09-13 CD DA omitted KR100340796B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950029871A KR100340796B1 (en) 1995-09-13 1995-09-13 CD DA omitted

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950029871A KR100340796B1 (en) 1995-09-13 1995-09-13 CD DA omitted

Publications (2)

Publication Number Publication Date
KR970017409A true KR970017409A (en) 1997-04-30
KR100340796B1 KR100340796B1 (en) 2002-12-05

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KR1019950029871A KR100340796B1 (en) 1995-09-13 1995-09-13 CD DA omitted

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