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Flatness Leveling Method for CATV Optical Receiver

A technology for optical receivers and cable TVs, applied in the field of flatness leveling for cable TV optical receivers, can solve the problem of not further extending the "flatness" requirements, difficult to achieve leveling, and difficult optical receiver flatness debugging And other issues

Active Publication Date: 2021-11-26
平湖新纳通信技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, taking the above-mentioned utility model patent as an example, although the general concept of "optical receiver with impedance matching function" is disclosed, it does not further extend the requirements of "flatness" and the specific implementation method of "levelling"
In other words, the technical solutions disclosed in the above utility model patents are difficult to be directly applied to the flatness debugging of optical receivers, especially difficult to achieve leveling, and need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0058] Preferably, the cable light receiving machine is flattened with a flat degree, including the following steps:

[0059] Step T0: When the link is designed, at least one auxiliary circuit associated with the flatness of the zoom chip itself is added to comprehensively consider the flatness of the zoom in the chip itself;

[0060] Step T1: When the link is designed, at least one protective device and a coupled device for balancing the resistance and the induced resistance corresponding to the protection device are added;

[0061] Step T2: When the link wiring is reserved, at least one ground capacitor is reserved to cancel the impedance of the exceeding threshold due to the excessive wiring link;

[0062] Step T3: When the link is commissioned, the capacitive resistance and induction of the chain is adapted by the preset manual touch debugging method, so that the flatness of the chain is optimized.

[0063] Further, as a first embodiment of the first embodiment, in step T0, th...

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PUM

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Abstract

The invention discloses a flatness leveling method for a cable television optical receiver, which includes the following steps: Step S1: when designing a link, add at least one protection device and a circuit board corresponding to the protection device for balancing capacitance and inductance; Resistive coupling device; Step S2: When link wiring, reserve at least one grounding capacitor to offset the inductance exceeding the threshold caused by the wiring link being too long; Step S3: During link debugging, through the preset The manual touch debugging method adaptively adjusts the overall capacitive reactance and inductive reactance of the link to optimize the overall flatness of the link. The flatness leveling method for a cable TV optical receiver disclosed by the invention is dedicated to solving the defect of poor flatness and realizing overall link leveling.

Description

Technical field [0001] The present invention belongs to the field of light receiving machine debugging technology, and in particular, there is a flatness leveling method for a wired television light receiving machine. Background technique [0002] The open number is CN202334776U, the subject name is a practical utility model based on the ground digital television single-band network, and the technical solution is disclosed, "including the photoelectric converter (1), and the photoelectric converter (1) The signal is converted into an electrical signal, and then the electrical signal is input to the impedance amplifier (2), the impedance amplifier (2) is also electrically connected to the impedance converter (3), and the electrical signal is enlarged after an impedance amplifier (2). The impedance converter (3) is input to the impedance converter (3) and perform impedance transformation to generate an electrical signal of 75 ohms, and the photoelectric conversion module (1) and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/10H04N7/22H04N5/44
CPCH04N5/44H04N7/10H04N7/22
Inventor 曲宝春张斌
Owner 平湖新纳通信技术股份有限公司