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Control circuit and control method of fast peripheral component interconnection device

A technology for the interconnection of peripheral components and control circuits, which is applied in the direction of program control, program control, and electrical program control in sequence/logic controllers. It can solve problems such as failure to pass electromagnetic interference tests and reduce wireless communication interference. Effect

Active Publication Date: 2017-06-09
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, due to the interference from the PCI-E device, at 2.5 GHz, it can be seen that there is a surge exceeding the dotted line 101, so it cannot pass the electromagnetic interference test

Method used

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  • Control circuit and control method of fast peripheral component interconnection device
  • Control circuit and control method of fast peripheral component interconnection device
  • Control circuit and control method of fast peripheral component interconnection device

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Embodiment Construction

[0025] Certain terms are used throughout the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. .

[0026] The idea of ​​the present inventi...

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Abstract

A control circuit of a PCI-E (peripheral component interconnect express) device comprises a power detecting unit and a parameter adjusting unit. The power detecting unit is coupled to a wireless communication transmitter and used for detecting a spectral strength value of an output spectrum of the wireless communication transmitter. The parameter adjusting unit is coupled to the power detecting unit and used for generating at least one control signal according to the spectral strength value and adaptively adjusting parameters of the PCI-E device according to the at least one control signal.

Description

technical field [0001] The invention relates to a control mechanism of a fast peripheral component interconnection device, especially a control circuit and a control method of a fast peripheral component interconnection device that can reduce wireless communication interference. Background technique [0002] The main operating frequency of the peripheral component interconnect express (PCI-E) device is at 1.25GHz, and other harmonics (Harmonic) of different frequencies will be generated according to the integer multiple of the main operating frequency, such as The second harmonic at 2.5GHz (ie 1.25x2GHz). [0003] However, since the transmission frequency band of wireless fidelity (Wi-Fi) is also located near 2.5GHz, when the second harmonic of frequency 2.5GHz is radiated or coupled to the transmission path of the Wi-Fi circuit via different paths, There will be a 2.5GHz surge (Spur) on the output spectrum of the Wi-Fi circuit, please refer to figure 1 , figure 1 It is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
CPCG05B19/0423
Inventor 王文山王世宏
Owner REALTEK SEMICON CORP