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Adaptive equalization device and method

An adaptive equalization and equalizer technology, which is applied in baseband systems, shaping networks in transmitters/receivers, duration/width modulation pulse demodulation, etc., can solve problems such as not being able to tune equalizer parameters in time, and achieve lightening The effect of intersymbol interference

Inactive Publication Date: 2015-10-07
MEDIATEK INC
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  • Abstract
  • Description
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Problems solved by technology

[0006] In order to solve the problem that the traditional adaptive equalizer cannot tune the equalizer parameters in time, the present invention provides an adaptive equalizer device and method

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  • Adaptive equalization device and method
  • Adaptive equalization device and method

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Embodiment Construction

[0019] Certain terms are used throughout the specification and appended claims to refer to particular components. It should be understood by those skilled in the art that hardware manufacturers may refer to the same component by different terms. This description and the appended claims do not use the difference in names as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned in the entire specification and the appended claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" includes any direct and indirect electrical connection means. Therefore, if it is described in the text that the first device is coupled to the second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. .

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Abstract

An adaptive equalization apparatus is provided. The adaptive equalization apparatus includes an equalizer, a monitor circuit, and a control circuit. The equalizer receives a first signal, and equalizes the first signal according to an equalization parameter setting to thereby generate a second signal. The monitor circuit is electrically connected to the equalizer, and monitors edges of the second signal in a real-time manner to thereby generate a detection result. The control logic is electrically connected to the equalizer, and adaptively adjusts the equalization parameter setting according to the detection result.

Description

technical field [0001] The present invention relates to equalizing an input signal, and in particular to an adaptive equalization device and method for adaptively adjusting equalization parameters according to the edge of an equalizer output monitored in real time. Background technique [0002] Regarding an application connecting a transmitter end and a receiver end with a cable (such as an HDMI cable), the length of the cable does not need to be a fixed value. In other words, one user may connect the transmitter end and receiver end with a cable having a first length, while the other user may connect the transmitter end and receiver end with a cable having a second length. In general, cables affect the transmitted signal in amplitude and / or phase. Thus, in the case where the transmitter terminals output the same signals to the respective receiver terminals, the signals received by the receiver terminals are not identical to each other due to differences in cable characteri...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03
CPCH04L7/0058H03K9/08H04L25/03019
Inventor 周明忠
Owner MEDIATEK INC
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