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Primary and secondary judgment device and primary and secondary judgment method applied in network device

A technology of network devices and judging devices, which is applied in data exchange networks, digital transmission systems, electrical components, etc., and can solve problems such as receivers being unable to distinguish signals

Active Publication Date: 2015-05-20
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when the network devices on both sides of the channel send the same signal, the receiver will not be able to tell whether the received signal is from the other party or from its own. If it is the former, it should receive it; if it is the latter, it should be eliminated.

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  • Primary and secondary judgment device and primary and secondary judgment method applied in network device
  • Primary and secondary judgment device and primary and secondary judgment method applied in network device
  • Primary and secondary judgment device and primary and secondary judgment method applied in network device

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Embodiment Construction

[0027] Certain terms are used in the specification and subsequent claims to refer to particular elements. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same element. This description and subsequent patent applications do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and subsequent claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" here includes any direct and indirect means of electrical connection. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device. The second device, or indirectly electrically connected to the second device through other devices ...

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Abstract

The invention discloses a primary and secondary judgment device and a primary and secondary judgment method applied in a network device. The primary and secondary judgment device is applied to a first network device, wherein the first network device is coupled with a second network device, the primary and secondary judgment device comprises a seed distance detection unit and a judgment unit, the seed distance detection unit is used for detecting a seed distance between a first seed used by a seed scrambler in the first network device and a second seed used by a second scrambler in the second network device, and the judgment unit is coupled with the seed distance detection unit, and is used for judging the first network device is a primary control device or a secondary device according to the seed distance.

Description

technical field [0001] The present invention relates to a master-slave judging device applied to a network device, especially a sub-distance between the scrambler of the network device and the scrambler of another network device to determine whether the network device is A master-slave judging device and a master-slave judging method in which the master device is also a slave device. Background technique [0002] In the specification of High Definition Multimedia Interface (HDMI) version 1.4, the fast Ethernet standard is used to transmit information at 100 Mbps. However, in the original Fast Ethernet standard, two pairs of independent channels are used for transmission and reception, so there will be no echo interference. However, in the channel environment of HDMI Ethernet & Audio Return Channel (HEAC), the same channel is used for transmission and reception, so there will be echo interference, and the receiver needs to add an additional echo canceller (echo canceller) t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 翁启舜黄亮维徐铭锋朱元志
Owner REALTEK SEMICON CORP