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Television signal processing device and television signal processing method

A TV signal processing and TV signal technology, applied in TV, color TV, color TV components and other directions, can solve the problems of inability to convert radio frequency signals to composite video signals, affecting image output, etc.

Active Publication Date: 2014-08-20
XUESHAN TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, if the received RF signal is distorted, the subsequent demodulation process may not correctly convert the received RF signal back to the original composite video signal, thereby affecting the subsequent image output

Method used

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  • Television signal processing device and television signal processing method
  • Television signal processing device and television signal processing method
  • Television signal processing device and television signal processing method

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Embodiment Construction

[0017] Certain terms are used throughout the specification and following claims to refer to particular elements. Those of ordinary skill in the art should understand that hardware manufacturers may use different terms to refer to the same element. This description and the following claims do not use the difference in name as the way to distinguish components, but the difference in function of the components as the 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". Otherwise, the term "coupled" includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0018] The i...

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Abstract

A television signal processing device and a television signal processing method are proposed according to embodiments of the present invention, wherein the television signal processing device includes a first signal processing unit, a television demodulator, and a second signal processing unit. The first signal processing unit performs a first signal processing operation upon a television signal according to a feedback signal to reduce distortion of the television signal and accordingly generate a processed television signal. The television demodulator is coupled to the first signal processing unit for receiving the processed television signal, and demodulating the processed television signal to generate a demodulated television signal. The second signal processing unit is coupled to the first signal processing unit and the television demodulator for receiving the demodulated television signal, and performing a second signal processing operation upon the received demodulated television signal to generate the feedback signal.

Description

technical field [0001] The present invention relates to television signal processing, in particular to a television signal processing device and a television signal processing method, which can reduce the degree of distortion of the television signal before demodulation by processing the feedback signal obtained from the demodulated television signal. Background technique [0002] For analog TV, the composite video signal has become a commonly used format because it carries brightness information, chrominance information and synchronization information. In addition, when transmitting, the composite video signal will be modulated and converted by the radio frequency carrier Therefore, for the receiving end (such as a TV or set-top box), it is necessary to convert the received radio frequency signal back to the corresponding composite video signal through a demodulation process, so as to read the brightness from the composite video signal information, chroma information, and s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/455H04N5/53
CPCH04N5/455H04N5/53
Inventor 张胜综刘明伦吴宗翰丁宇
Owner XUESHAN TECH INC
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