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Data processing device

A data processing device and digital sound signal technology, applied in TV, color TV parts, color TV, etc., can solve the problem that the two-way control function of the monitoring system cannot be satisfied, and achieve the effect of reducing the complexity of wiring

Inactive Publication Date: 2007-08-01
BEACON ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the known technology solves the problem of transmitting sound signals, it transmits the sound signal carrier to the vertical mask area 103 of the video signal, so that no additional sound transmission lines are needed, but this method can only transmit unidirectional sound signals and There is no transmission of control signals, so it cannot meet the needs of monitoring systems or access control systems that require two-way control functions and two-way transmission of sound

Method used

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Embodiment Construction

[0046] As shown in FIG. 2 , the first embodiment of the present invention is a data processing device 2 , which includes a first interface 201 , a horizontal synchronization signal amplifying unit 203 and a control unit 205 . The first interface 201 is used to receive a first video signal 200. The first video signal 200 may be provided by a camera, other image input devices or another data processing device. The structure of the first video signal 200 is shown in FIG. 1 . The horizontal synchronization signal amplifying unit 203 is used to amplify the horizontal synchronization signal of the first video signal 200. As shown in FIG. The unit 203 is to amplify the area B to form a horizontal synchronization signal 202 with only high and low levels as shown in FIG. mistake. The control unit 205 counts the amplified horizontal synchronous signal 202 , and sends an audio signal and a control signal to the mask area according to the counting result.

[0047] The first video signal...

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Abstract

The related data process device comprises: a first interface to receive video signal included a shade area, a horizontal synchronous signal amplifier to amplify the horizontal synchronous signal, and a control unit to count the amplified signal and hereby receive audio and control signal in the shade area, wherein when the control unit transmits signal by shade area, the loaded signal passes the first interface.

Description

technical field [0001] The present invention relates to a data processing device, more specifically, to a data processing device for loading control signals and audio signals by counting horizontal synchronization signals of video signals. Background technique [0002] Due to the rapid development of society, surveillance cameras are often used in surveillance systems, access control systems and many other occasions. Known surveillance cameras only have the function of image transmission. When the user needs to transmit sound, alarm data, or some control signals such as controlling camera rotation, lens zoom, etc., an additional sound transmission line is needed to transmit the sound signal and a Control transmission lines (such as RS-485) to transmit control signals. When establishing a monitoring system or an access control system, in order to lay out the aforementioned sound transmission lines and control transmission lines, the lines will be complicated and difficult to...

Claims

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Application Information

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IPC IPC(8): H04N7/52H04N5/765
Inventor 崔开良
Owner BEACON ADVANCED TECH
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