Unlock instant, AI-driven research and patent intelligence for your innovation.

Subcode and sector synchronization for a data processing system

A data processing system and sector technology, applied in data recording, recording signal processing, carrier index/addressing/timing/synchronization, etc., can solve the problems of time-consuming and storage capacity, and achieve the effect of ensuring synchronization

Inactive Publication Date: 2009-09-16
THOMSON LICENSING SA
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If synchronization between subcode timecode and sector address is not done, the DPS needs to flush (flush) the data provided by the servo until the requested data (sector) is received - this is time and memory consuming Quantitative

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Subcode and sector synchronization for a data processing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0102] figure 1 An example of SCAN mode communication is shown. At initialization, the microcontroller 1 in a first step 4 has a number of sectors sent to the DPS 3 via the memory 2 (eg electronic shock-proof microcontroller ESPMC). In a second step 5 , the microcontroller 1 requests confirmation of sector receipt, which was sent in another step 6 from the DPS. For this a continuity counter 7 is implemented in the DPS. To allow synchronization between the subcode time code and the sector address, the microcontroller uses the scan mode 1 command in step 8 to request information about the sector header field. The DPS uses SCANM messages to send the requested information. The microcontroller is now able to calculate the difference between the 9-subcode timecode and the sector address. In said figure, two further communication steps are shown. Using a first read sector data command RSECDATA1, the microcontroller 1 requests sector data from the DPS 3, which in response send...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to data synchronization between a data processing system (3) and a servo system (1) of a device for reading from and / or writing to an optical recording medium. It is an object of the present invention to provide an improved method for synchronizing subcode timecode and sector addresses of data contained on a recording medium. According to the invention, said method comprises the steps of: sending (4) a plurality of sectors from the microcontroller (1) to the data processing system (3); requesting (8) from the data processing system (3) information about the received sectors and use the information about the sector header to calculate (9) the difference between the subcode time code and the sector address; repeat the synchronization step (4, 8, 9).

Description

technical field [0001] The invention relates to data synchronization between a data processing system and a servo system of a device for reading from and / or writing to an optical recording medium. Background technique [0002] In recent years, there has been an increasing need to provide consumer electronic equipment such as compact disc players, DVD players, etc., with processing to compress (eg MP3 or MP3Pro, WMA (Windows Media Audio)) or uncompressed (eg WAV ( Waveform audio file) data format is the ability to store audio data as an audio file on a storage medium. Capable of replaying and / or recording audio in compressed or uncompressed data format, in contrast to audio processing systems according to the prior art, which can only read and / or write audio information according to the compact disc standard (Red Book) A high-level data processing system (DPS) for files needs to be able to extract, decode and transfer data associated with file systems and audio files stored ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B27/00G11B27/10G11B27/30G11B20/12G11B20/10
CPCG11B2220/2545G11B27/105G11B27/3063G11B27/10G11B20/1217G11B20/10G11B2220/2562G11B2020/1287G11B2020/1271G11B20/12G11B27/00G11B27/30
Inventor 于尔根·鲍姆利鲁迪格·布伦海姆罗莎里奥·拉米雷斯
Owner THOMSON LICENSING SA