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Signal branch line length detection system and method

A technology of inspection system and inspection method, applied in short-circuit test, electrical connection test, instrument and other directions, can solve the problem of length cannot be inspected, and achieve the effect of satisfying quality

Inactive Publication Date: 2011-05-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional routing software can only provide control and inspection of the length of the signal line of the point-to-point structure, and cannot check the length of branch line segments that may have windings

Method used

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  • Signal branch line length detection system and method
  • Signal branch line length detection system and method
  • Signal branch line length detection system and method

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Embodiment Construction

[0013] Such as figure 1 Shown is a system architecture diagram of the signal line branch length inspection system of the present invention. The system includes: a display 11 , a branch line inspection device 12 , a printed circuit board (Printed Circuit Board, PCB) 13 and a database 14 . Wherein, the branch line segment inspection device 12 can be installed on a personal computer or a notebook computer, and is used to check the length of the signal line branch line segment on the PCB13. The branch line segment inspection device 12 includes: a signal line encoding module 121, a signal line filtering module 122, A signal line selection module 123 , a branch line segment inspection module 124 , a branch line segment length comparison module 125 and a result display module 126 .

[0014] The signal line coding module 121 is used to code all the signal lines on the PCB 13 and save the codes to the database 14 . Such as figure 2 Shown is a schematic diagram of signal line coding...

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Abstract

A length inspection system for signal branch line includes a display, a branch inspection device, a printing circuit board and a database. The system uses the branch inspection device to inspect the length of signal branch line of the printing circuit board. The branch inspection device includes a signal line coding module, a signal line filtering module, a signal line selecting module, a branch inspection module and a branch length comparison module. The invention also provides a branch length inspection method. The branch length inspection system provided by the invention can provide the length inspection for a signal branch line and further effectively control the length so as to meet the demand of signal quality.

Description

technical field [0001] The invention relates to a signal line length inspection system and method, in particular to a signal line branch segment length inspection system and method. Background technique [0002] Transmission of a signal on a printed circuit board (Printed Circuit Board, PCB) in a circuit is manifested as a change in voltage with time. In the process of sending the signal from a signal sending end to the signal receiving end through the circuit on the PCB, in order to make the voltage reach a specific level and provide stable signal transmission, some passive components (such as resistors, capacitors and other circuit components) are used to connect An external circuit divides the voltage to provide the working bias required by the overall circuit. Wherein, the external circuit may be connected to other circuit segments of the PCB to provide a high voltage, or may be grounded to provide a low voltage. [0003] When using the passive element to provide the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/50G01R31/00
CPCG01R31/52G01R31/67G06F30/367
Inventor 许寿国白家南李政宪
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD