Invention Grant
US07649823B2 Method for recording asynchronously produced digital data codes, recording unit used for the method, method for reproducing the digital data codes, playback unit used for the method and information storage medium
有权
用于记录异步产生的数字数据代码的方法，用于该方法的记录单元，用于再现数字数据代码的方法，用于该方法的重放单元和信息存储介质
- Patent Title: Method for recording asynchronously produced digital data codes, recording unit used for the method, method for reproducing the digital data codes, playback unit used for the method and information storage medium
- Patent Title (中): 用于记录异步产生的数字数据代码的方法，用于该方法的记录单元，用于再现数字数据代码的方法，用于该方法的重放单元和信息存储介质
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Application No.: US10923410Application Date: 2004-08-20
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Publication No.: US07649823B2Publication Date: 2010-01-19
- Inventor: Jun Ishii , Haruki Uehara
- Applicant: Jun Ishii , Haruki Uehara
- Applicant Address: JP Hamamatsu-Shi
- Assignee: Yamaha Corporation
- Current Assignee: Yamaha Corporation
- Current Assignee Address: JP Hamamatsu-Shi
- Agency: Morrison & Foerster LLP
- Priority: JP2000-119978 20000420; JP2000-119979 20000420
- Main IPC: G11B5/09
- IPC: G11B5/09 ; G11B11/00
Abstract:
A recording and reproducing system is broken down into a recording unit for producing a digital audio data signal from MIDI music data words asynchronously produced at irregular intervals and a playback unit for reproducing the MIDI music data codes from the digital audio data signal, wherein synchronous data nibbles are supplemented in the irregular intervals among the MIDI music data words for producing a data stream, and the digital audio data signal is produced from the data stream through a differential phase shift keying and a phase code modulation so as to record the MIDI messages in a digital versatile disk at high dense.
Public/Granted literature
Information query
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