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Clock synchronization method and system, digital television equipment and EPG server

A clock synchronization and digital TV technology, applied in the communication field, can solve problems such as poor clock reliability, and achieve the effect of improving reliability, ensuring accuracy, and good throughput

Inactive Publication Date: 2014-07-23
HISENSE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a clock synchronization method, system, digital TV equipment, and EPG server to solve the problem of poor reliability of clock synchronization based on NTP servers existing in the prior art

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  • Clock synchronization method and system, digital television equipment and EPG server
  • Clock synchronization method and system, digital television equipment and EPG server
  • Clock synchronization method and system, digital television equipment and EPG server

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Embodiment Construction

[0064] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0065] In order to ensure the stability and reliability of clock synchronization by digital TV equipment, the digital TV equipment adds its own clock synchronization request to the channel list request by using the communication process that digital TV equipment obtains the channel list from the EPG server, and records and sends The first device time of the channel list request; after the EPG server receives the channel list request carr...

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Abstract

The invention discloses a clock synchronization method and system, digital television equipment and an EPG server. The clock synchronization method mainly comprises the steps that the digital television equipment adds a clock synchronization request to a channel list request, the channel list request is sent to the EPG server, a channel list response, carrying clock synchronization information, returned by the EPG server is received, and clock synchronization is carried out according to first equipment time for sending the channel list request, second equipment time for receiving the channel list response and the clock synchronization information. Therefore, the clock synchronization request carries out information transmission by relying on a TCP based on the EPG server, information transmission carried out through a UDP based on an NTP server in the prior art is avoided, and stability and reliability of information transmission are guaranteed. In addition, due to the fact that the EPG server is in the continuous operating state all the time, and a clock source exists, the accuracy of clock synchronization of the digital television equipment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a clock synchronization method, system, digital television equipment, and EPG server. Background technique [0002] Existing digital TV equipment can periodically obtain the program list on the server side, and play according to the program list; If it is not synchronized, the TV program at the server time t2 may be received, resulting in the inability to accurately receive the TV program that the user wants to watch. Moreover, it may also affect the function settings of the digital TV equipment itself, such as applications such as calendar and alarm clock reminder. Therefore, the device time of the digital TV device needs to be kept in sync with the server time on the server side, and various application operations can be performed using the accurate server time. [0003] The current clock synchronization of various digital television devices is usually based on the serv...

Claims

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Application Information

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IPC IPC(8): H04N21/254H04N21/235H04N21/24
Inventor 汪先健
Owner HISENSE
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