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Method and device for data packing

A technology of data encapsulation and equipment, applied in digital transmission systems, speech analysis, instruments, etc., can solve problems such as expensive computing resources

Active Publication Date: 2012-07-04
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, computational resources are expensive in cases where communication links are employed only for the purpose of transmitting data streams

Method used

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  • Method and device for data packing

Examples

Experimental program
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Embodiment Construction

[0030] figure 1 The data stream burst format described in the IEC 61937 standard is shown. For a detailed description of the burst format, reference is made to Article 6 of IEC 61937 document 100 / 260 / FDIS. This provides a description of the data encoding format according to the standard IEC 61937.

[0031] figure 1 The burst format shown has four preamble words Pa, Pb, Pc and Pd with the following meanings: Pa and Pb represent sync word, Pc represents information related to data type and information / control for the receiver , Pd represents the length of the payload in bits. The burst includes a payload field, which is terminated by padding with zeros (padding elements) to obtain a pre-specified format for the burst.

[0032] Table 1 summarizes the preambles and their corresponding contents and the values ​​contained within them.

[0033] Table 1 Burst preamble

[0034] leading word

content

Value MSB..LSB

Pa

sync word 1

F872h

Pb

...

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Abstract

A method and a device is presented for communicating a first data stream encoded according to a non-PCM format through a communication link that is designed communicating a data stream encoded according to a PCM format. The method and device receive a first data stream encoded according to a non-PCM format. The received data stream comprises a plurality of data-packets. The method and device packthe first data stream into a second data stream. The second data stream has plurality of data- packets. Each of the data-packets of the second data stream includes a discontinuity according to the PCM format. The second data stream is communicated through the link. A method and a device are further provided for receiving the second data stream via the link and for identifying the format of the received data stream by examining for the discontinuity.

Description

technical field [0001] The present invention relates to a method and apparatus for data encapsulation, and more particularly to a method and apparatus for encapsulating a data stream coded according to a non-PCM (Pulse Code Modulation) format, for the A communication link that transmits a data stream to transmit a data stream encoded according to a non-PCM format. Background technique [0002] Definition 1: The term - a communication link "designed to" carry a data stream encoded according to the PCM format - defined as a communication link that receives a data stream encoded according to the PCM format from a first unit and facilitates the communication between the first unit and the second unit communication link. [0003] Definition 2: In this document, the word "header" includes a set of "preamble words". The preamble may be a "sync word" and / or a word containing metadata specific to the data stream. [0004] Definition 3: For the sake of brevity, simplicity, clarity ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/00H04B14/04
CPCG10L19/167H04B14/04
Inventor 普兰乔伊·巴塔查里亚
Owner NXP BV