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Data transmission/reception apparatus, data transmission/reception method and transfer system

A technology of sending equipment and receiving equipment, which is applied in the field of data sending/receiving equipment, data sending/receiving and transmission systems, and can solve the problems that audio data cannot be received and processed correctly, and the receiving equipment is unknown, etc.

Inactive Publication Date: 2003-12-17
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Data with a new block structure is then transmitted in a newly defined transmission format, but this newly defined transmission format is unknown to receiving equipment that was previously developed and put into use
[0014] Therefore, there arises a problem that audio data cannot be received and processed correctly

Method used

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  • Data transmission/reception apparatus, data transmission/reception method and transfer system
  • Data transmission/reception apparatus, data transmission/reception method and transfer system
  • Data transmission/reception apparatus, data transmission/reception method and transfer system

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Embodiment Construction

[0033] Preferred embodiments of the present invention will be described below. It should be noted that the present embodiment implements a typical data transmission device and a data reception device for respectively transmitting audio data and receiving data in the IEEE-1394 transmission format. This article will describe the examples in the following sections:

[0034] 1. IEEE-1394 transmission format

[0035] 2. Transmission technology of the embodiment

[0036] 3. Sending device and receiving device

[0037] 1. IEEE-1394 transmission format

[0038] First, the transmission format conforming to the IEEE-1394 specification is explained.

[0039] As shown in FIG. 1A, when using IEEE-1394 technology to transmit data, data transmission is performed in a time-division manner and is divided into predetermined communication cycles, each communication cycle has a standard length of 125 microseconds, and more than multiplexing packets. A device that outputs a CSP (Cycle Start ...

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Abstract

A transfer method capable of coping with various types of channels of audio data. A transmitter side performs blocking of data consisting of n channels into a block capable of storing m-channel data (n <= m). Each block contains a judgment information capable of determining a channel having no valid data and a transmission data stream matched with a predetermined transfer format is created and transmitted. At a receiver side, according to the judgment information contained in the data stream of the received predetermined transfer format, a channel having no valid data in each block constituting the data stream is identified and valid channel data is extracted.

Description

technical field [0001] The present invention relates to a transmission system for transmitting digital data in a predetermined transmission format by dividing the data into blocks, a data transmitting device and a data receiving device used in data transmission, and a data transmitting method and a data receiving method used in data transmission. Background technique [0002] When it comes to audio data, the more popular ones are left and right 2-channel data. However, in recent years, 3-channel, 4-channel or more audio data has been widely used. [0003] In order to keep up with the popularization trend of multi-channel audio data, the transmission format of audio data should be adapted to the number of multiple channels. [0004] The detailed structure of the transfer data will be described below. Briefly, for example, when audio data is transmitted using SACD (Super Audio CD) technology conforming to the IEEE-1394 specification, the transport stream consists of a sequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/00H04L12/28H04L12/40H04L12/64
CPCH04L12/40071H04L12/40052H04L12/6418H04L12/40058H04L12/40117G11B20/10
Inventor 市村元
Owner SONY CORP