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Signal transmitting and processing device and method in optical system

A signal processing device and signal transmission technology, applied in the field of signal transmission, can solve problems such as difficulties

Inactive Publication Date: 2006-06-07
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the high-frequency signal is coupled and transmitted, the frequency is above 200Mhz, the difficulty is conceivable

Method used

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  • Signal transmitting and processing device and method in optical system
  • Signal transmitting and processing device and method in optical system
  • Signal transmitting and processing device and method in optical system

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Embodiment Construction

[0041] Another object and features of the present invention will become clear after the embodiments are described in detail with reference to the accompanying drawings.

[0042]Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Figure 4 a is a waveform diagram showing an original signal output by a DSP (signal processing device).

[0044] Figure 4 b is the above Figure 4 A schematic diagram of frequency division and transformation in Exclusive-or (exclusive or) manner.

[0045] If the above Figure 4 a / 4b for illustration, you can use Figure 4 the existing signal icon of a Figure 4 b Perform Exclusive-or (exclusive or) transformation like that.

[0046] It is possible to transmit two signals converted by Exclusive-or (exclusive OR) in the optical recording device to the LD DRIVER IC (Laser Video Disk Driver Integrated Circuit) of the optical pickup.

[0047] In the LD DRIVER IC (La...

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PUM

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Abstract

The present invention relates to signal transmission in optical record system, and is especially that in signal processing device, the HF signals of different signal channels are transmitted in XOR operation and / or low voltage differential signal driving coupling mode; and in light pick-up VCD, one of the transmitted signals is reversed by means of XOR and / or coupling signal before being combined with one other signal and processed. Therefore, during high multiplication light record based on the present invention, the HF signal may be transmitted from the device to the pick-up without error and noise.

Description

【Technical field】 [0001] The present invention relates to the signal transmission in the optical recording system, in detail, it is about dividing a high-frequency signal into more than 2 signals in an Exclusive-or (exclusive-or) mode and / or using LVDS (Low-Voltage Differential Signaling) A signal processing device and a method for transmitting in a coupling manner). 【Background technique】 [0002] Further specific description is that in the signal processing device (hereinafter referred to as DSP), the high-frequency signal of each channel is divided into two or more, and the Exclusive-or (exclusive-or) method and / or LVDS (low voltage differential signal driving method) ) coupling mode for transmission; and in the LD (Laser Video Disc) of the optical pickup part, one of the signals transmitted by the above-mentioned Exclusive-or (exclusive-or) operation and / or coupling is reversed, and the Another signal is combined for signal processing. [0003] figure 1 is a block dia...

Claims

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Application Information

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IPC IPC(8): G11B7/00G11B7/09G11B20/10
Inventor 李完洙
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI