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Synchronization method and device

A transmitter, pulse technology, applied in the direction of synchronization devices, transmission systems, electrical components, etc., to achieve the effect of simple networking

Active Publication Date: 2008-11-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Synchronizing these clock devices can be a challenge, especially when the devices are distributed around a wide geographic area

Method used

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  • Synchronization method and device
  • Synchronization method and device
  • Synchronization method and device

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Embodiment Construction

[0012] Before describing the embodiments of the present invention in detail, it should be noted that the present embodiments exist in a combination of method steps and apparatus components, and involve frame synchronization at the transmitter using a globally accepted global clock. Correspondingly, conventional symbols are used in the legends to describe these devices and method steps, and only the key details related to the specific embodiments of the present invention are described in detail, so as to help everyone clearly and fully understand the scheme, so as to avoid misunderstanding of these details, Those of ordinary skill in the art can easily understand and benefit from it.

[0013] In this specification, related terms, such as first and second, top and bottom, and similar terms, may be used independently to distinguish different entities or treatments without necessarily requiring or implying that relationship or sequence. The terms "comprising", "consisting of", or...

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Abstract

A transmitter comprising: a digital encoder for encoding incoming digital information; and a digital to analog converter for converting the encoded digital information into analog information is described. The transmitter further comprises an exact time framing block disposed between the digital encoder and the digital to analog converter. The exact time framing block receives the digitally encoded information and comprises a method for synchronization. The method including the steps of: providing a clock signal having at least two adjacent pulses; providing information subjected to transmission in the form of a set of frames; and accommodating a whole number of frames between the two adjacent pulses.

Description

technical field [0001] The invention belongs to the field of DMB-TH transmitters, and more specifically relates to a method and device for accurate time framing in the DMB-TH transmitter. Background technique [0002] Synchronization of different locations on the Earth's surface is desirable, especially for systems or devices related to terrestrial communications. For example, in the latest Chinese digital terrestrial transmission standard (GB20600-2006), synchronization is a prerequisite. Typically, in a communication system, different clock devices are used in different subsystems that need to be synchronized. Synchronizing these clock devices is a challenge, especially when the devices are distributed around a wide geographic area. Therefore, we need a device that uses a global timing system to synchronize multiple associated devices in the communication system that are distributed around a wide geographic area. Contents of the invention [0003] In order to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00H04L5/06H04N7/24H04N7/015
CPCH04H20/67H04J3/0685H04J3/0644
Inventor 杨林杨海耘俞宏王剑
Owner TSINGHUA UNIV