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Serial data analytic method and device

A serial data and analysis method technology, applied in the field of data transmission, can solve problems such as high cost, high complexity of hardware analysis method, and slow analysis speed

Active Publication Date: 2014-08-27
HANGZHOU SILAN MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the hardware analysis method is complex and expensive
Also, slow parsing at many possible data rates and sample rates

Method used

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  • Serial data analytic method and device

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Embodiment Construction

[0070] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0071] In order to facilitate data synchronization, serial data usually sets a synchronous frame header for the transmitted frame or subframe to indicate the starting position of the frame or subframe. This type of serial data usually has a predetermined frame length (for the convenience of description, in In the case of setting a sync frame header for a subframe, the frame length refers to the subframe length). For example, in the SPDIF protocol, there are three different synchronization frame headers, which are set according to Table 1 below.

[0072]

[0073] Table 1

[0074] The synchronous frame header usually has characteristics that other parts of the seria...

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Abstract

The invention discloses a serial data analytic method and device. Serial data have the preset length. The method comprises the following steps: acquiring the clock pulse quantity between the longest continuous levels of adjacent synchronization frame headers or packet finish identifications in the series data; acquiring the data rate of the series data according to the local clock frequency, the preset frame length and the clock pulse quantity. The data rate of the series data is determined according to the clock pulse quantity and the local clock frequency by searching for the clock pulse quantity between the adjacent synchronization frame headers or the packet finish identifications. Therefore, the analytic speed can be improved, and precision is high.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a serial data analysis method and device. Background technique [0002] Serial communication (Serial Communication) refers to a communication method that transmits one bit of data at a time on a computer bus or other data channels, and continuously performs the above single process. Serial data refers to data transmitted based on a serial communication protocol. [0003] In order to achieve clock synchronization between the sending end and the receiving end, serial data usually has several fixed data rates, and clock information or synchronization sequence is added during encoding. For example, the SONY / PHLIPS Digital Interface Format (SPDIF) protocol specifies several commonly used sampling rates, such as 192k / 96k / 48k, 176.4k / 88.2k / 44.1k, and other uncommon sampling rates Rate, different sampling rates correspond to different data rates. [0004] In serial data transmission, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
Inventor 陈振杰金黄斌陈若愚
Owner HANGZHOU SILAN MICROELECTRONICS
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