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Signal transmitting device, and transmitter and receiver thereof

A technology of signal transmission and transmitter, which is applied in image signal generators, image reproducers using projection devices, image reproducers using solid-state color display devices, etc., can solve multiple hardware costs, weaken the competitiveness of signal transmission devices, Problems such as the influence of the original image signal

Active Publication Date: 2015-05-27
ATEN INT CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantages of the above-mentioned traditional methods are: the installation of expensive delay elements and additional detection circuits requires a considerable increase in hardware costs, and the delay elements will affect the original image signal, plus pairwise comparisons between the analog image signals The skewed situation requires a long signal processing time, which seriously weakens the competitiveness of the signal transmission device in the market

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  • Signal transmitting device, and transmitter and receiver thereof
  • Signal transmitting device, and transmitter and receiver thereof
  • Signal transmitting device, and transmitter and receiver thereof

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Embodiment Construction

[0058] A preferred embodiment of the present invention is a signal transmission device. In fact, the signal transmission device can be an audio-visual signal extender or an audio-visual switcher, and it is applied to a high-resolution multimedia interface that can integrate audio and video transmission together or transmit a keyboard-mouse-display switch (KVM switch), but not This is the limit. Since the present invention directly identifies the known de-skew pattern to find out where the data is located, the skew state has been determined without comparing the phase difference of the de-skew signal between the two signals , so the present invention is more fast and accurate.

[0059] Please refer to figure 1 , figure 1 A schematic diagram of the signal transmission device in this embodiment is shown. Such as figure 1 As shown, the signal transmission device TA is coupled between the first electronic device E1 and the second electronic device E2. Wherein, the first elect...

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Abstract

A signal transmitting apparatus includes a transmitter and a receiver. The transmitter packs a digital information according to a data frequency to form packed signals, and inserts pattern or frame signal before the packed signals respectively to form digital signals, and converts the digital signals into analog signals. After the receiver receives the analog signals, the receiver uses a sampling frequency several times of the data frequency to sample the analog signals, thereby converting them into the digital signals. The receiver detects the pattern or frame signal of each recovery digital signal and captures the packed signal from the digital signal corresponding to the correct pattern signal detected.

Description

technical field [0001] The present invention relates to signal transmission, in particular to a signal transmission device and its transmitter and receiver, which can quickly and accurately restore the color difference caused by long-distance line transmission. Background technique [0002] In recent years, multimedia audio-visual technology has developed quite rapidly. For example, a high-definition multimedia interface (High-Definition Multimedia Interface, HDMI) or a digital video interface (Digital Visual Interface, DVI) that can integrate audio and video transmission together, which transmits uncompressed audio signals and With high resolution video signal. Generally speaking, signal extenders for high-resolution multimedia interfaces mostly use CAT-5 or CAT-6 twisted pair cables (category 5 or category 6 cables) for long-distance transmission of HDMI video and audio signals. [0003] However, in the process of using CAT-5 or CAT-6 twisted pair to transmit analog imag...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N11/00H04N7/10H04N5/765
Inventor 张勇毅
Owner ATEN INT CO