WO2017166199A1 - Procédé et dispositif de suppression de signal parasite - Google Patents

Procédé et dispositif de suppression de signal parasite Download PDF

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Publication number
WO2017166199A1
WO2017166199A1 PCT/CN2016/078107 CN2016078107W WO2017166199A1 WO 2017166199 A1 WO2017166199 A1 WO 2017166199A1 CN 2016078107 W CN2016078107 W CN 2016078107W WO 2017166199 A1 WO2017166199 A1 WO 2017166199A1
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WO
WIPO (PCT)
Prior art keywords
network
interference signal
frequency
parallel
module
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PCT/CN2016/078107
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English (en)
Chinese (zh)
Inventor
郭群
隆仲莹
安万吉
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/078107 priority Critical patent/WO2017166199A1/fr
Priority to CN201680008258.3A priority patent/CN107534423A/zh
Publication of WO2017166199A1 publication Critical patent/WO2017166199A1/fr

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for suppressing interference information.
  • the radiation capability is related to whether the metal card is grounded. If the metal card holder is grounded, the interference suppression in the high frequency range is very obvious, but the interference in the low frequency range is sharply deteriorated; if the metal card holder is not grounded, the interference in the high frequency range is sharply deteriorated, but in the low frequency range The interference suppression is very obvious.
  • the current solution is: grounding the metal card holder of the radiation having the interference signal; or, the metal card holder of the radiation having the interference signal is not grounded.
  • the metal card Since the metal card is grounded in all frequency ranges, or the metal card is not grounded in all frequency ranges, there is no frequency selection characteristic. In addition, when the metal card is grounded, the interference in the low frequency range deteriorates drastically. Therefore, the low-frequency interference signal cannot be suppressed; when the metal card holder is not grounded, the interference in the high-frequency range is drastically deteriorated, so that the high-frequency interference signal cannot be suppressed. Therefore, high frequency interference signals and low frequency interference signals cannot be suppressed at the same time.
  • Embodiments of the present invention provide a method and apparatus for suppressing interference signals, which can suppress high frequency interference signals and low frequency interference signals by adjusting components in an LC network.
  • the first aspect of the present invention provides a method for suppressing an interference signal, including:
  • the interference signal is input to the LC network, wherein an input end of the LC network is connected to the device, and an output end of the LC network is grounded;
  • the interference signal includes a clock signal
  • the device includes a metal card holder, and there is interference on the metal card holder Signal radiation
  • LC network includes parallel LC network, series LC network, first-order LC network or multi-order LC network.
  • the components in the LC network include inductors and capacitors. The number of inductors and capacitors can be adjusted according to the frequency of the interference signal.
  • the output of the LC network can be grounded to the output of the LC network through the printed circuit board.
  • the beneficial effects are: by adjusting components in the LC network, the LC network generates resonance in a certain frequency band. Since the LC network is externally exhibiting zero impedance or infinite external impedance, equivalent to grounding and non-grounding, so as long as reasonable adjustment Therefore, the device can be grounded in a high frequency range and not grounded in a low frequency range. Therefore, the present invention has a frequency selective characteristic at the time of grounding, and suppresses a high frequency interference signal and a low frequency interference signal.
  • a first embodiment of the first aspect of the invention comprises:
  • the inputting the interference signal into the LC network includes:
  • Adjusting the components in the LC network according to the acquired frequency of the interference signal includes:
  • the resonant frequency of the parallel LC network and the frequency matching of the low frequency interference signal may be: the resonant frequency of the parallel LC network is the same as a specific frequency of all the low frequency interference signals, and the resonant frequency is equal to the specific frequency.
  • the parallel LC network provides significant isolation at frequencies of all low frequency interference signals, such as 10 to 20 dB, resulting in high impedance at all low frequency interference signals, equivalent to ungrounded, making all low frequency interference
  • the signal can be suppressed and, in addition, provides little isolation at the frequency of the high frequency interference signal, for example 1 to 2 dB, so that a low impedance is formed at the frequency of all high frequency interference signals, equivalent to grounding, making all High frequency interference signals can be suppressed.
  • the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved.
  • a second embodiment of the first aspect of the invention comprises:
  • the inputting the interference signal into the LC network includes:
  • Adjusting the components in the LC network according to the acquired frequency of the interference signal includes:
  • the components in the series LC network are adjusted according to the frequency of the high frequency interference signal such that the resonant frequency of the series LC network matches the frequency of the high frequency interference signal.
  • the resonant frequency of the series LC network and the frequency matching of the high frequency interference signal may be: the resonant frequency of the series LC network is the same as a specific frequency of all the high frequency interference signals, and the resonant frequency is equal to the specific frequency.
  • the series LC network can provide a small isolation at the frequency of all high frequency interference signals, for example 1 to 2 dB, so that a low impedance is formed at the frequency of all high frequency interference signals, equivalent to grounding, so that All high frequency interference signals can be suppressed, and in addition, provide significant isolation at frequencies of low frequency interference signals, such as 10 to 20 dB, resulting in high impedance at all low frequency interference signals, equivalent to ungrounded. This allows all low frequency interference signals to be suppressed. Obviously, the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved.
  • a third embodiment of the first aspect of the invention comprises:
  • the LC network mounts the device on a printed circuit board; or the LC network is implemented by internal routing of the printed circuit board.
  • the second embodiment of the first aspect of the present invention, the third embodiment of the first aspect of the present invention, the fourth embodiment of the first aspect of the present invention includes:
  • the resonance frequency f 0 is calculated by the following formula:
  • the resonant frequency of the parallel LC network and the resonant frequency of the series LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • a third embodiment of the first aspect of the present invention includes:
  • the LC network includes a parallel LC network, a series LC network, a first order LC network, or a multi-stage LC network.
  • the second aspect of the present invention provides an apparatus for suppressing an interference signal, including:
  • a detecting module for detecting whether there is radiation of an interference signal on the device
  • An input module configured to: if the detecting module detects radiation having an interference signal on the device, input the interference signal into an LC network, wherein an input end of the LC network is connected to the device, The output of the LC network is grounded;
  • an adjusting module configured to adjust components in the LC network according to the acquired frequency of the interference signal to suppress the interference signal.
  • the interference signal includes a clock signal
  • the device includes a metal card holder, and the interference of the interference signal on the metal card holder
  • the LC network includes a parallel LC network, a serial LC network, a first-order LC network or a multi-stage LC network, and components in the LC network. Including the inductance and capacitance, the number of inductors and capacitors can be adjusted according to the frequency of the interference signal.
  • the beneficial effects are: by adjusting components in the LC network, the LC network generates resonance in a certain frequency band. Since the LC network is externally exhibiting zero impedance or infinite external impedance, equivalent to grounding and non-grounding, so as long as reasonable adjustment Therefore, the device can be grounded in a high frequency range and not grounded in a low frequency range. Therefore, the present invention has a frequency selective characteristic at the time of grounding, and suppresses a high frequency interference signal and a low frequency interference signal.
  • the first embodiment of the second aspect of the invention comprises:
  • the input module is specifically configured to input the interference signal into a parallel LC network
  • the device also includes:
  • a first acquiring module configured to acquire a frequency of the low frequency interference signal in the interference signal
  • the adjusting module is specifically configured to adjust components in the parallel LC network according to a frequency of the low frequency interference signal acquired by the first obtaining module, so that a resonant frequency of the parallel LC network and a frequency of the low frequency interference signal match.
  • the adjustment module adjusts the components in the parallel LC network so that the resonant frequency of the parallel LC network matches the frequency of the low frequency interference signal, so as long as the adjustment is reasonable, the parallel LC network can provide significant isolation at the frequency of all low frequency interference signals. So that high impedance is formed at the frequency of all low frequency interference signals, equivalent to ungrounded, so that all low frequency interference signals can be suppressed, and in addition, provide small isolation at the frequency of high frequency interference signals, so that at all The high frequency interference signal forms a low impedance at the frequency, equivalent to grounding, so that all high frequency interference signals can be suppressed. Obviously, the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved. Therefore, the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • a second embodiment of the second aspect of the invention comprises:
  • the input module is specifically configured to input the interference signal into a serial LC network
  • the device also includes:
  • a second acquiring module configured to acquire a frequency of the high frequency interference signal in the interference signal
  • the adjusting module is specifically configured to adjust components in the serial LC network according to a frequency of the high frequency interference signal acquired by the second acquiring module, so that a resonant frequency of the serial LC network and the high frequency interference signal The frequency matches.
  • the adjustment module adjusts the components in the series LC network so that the resonant frequency of the series LC network matches the frequency of the high frequency interference signal, so the series LC network can provide very small frequencies on all high frequency interference signals as long as it is properly adjusted. Isolation, so that a low impedance is formed at the frequency of all high-frequency interference signals, equivalent to grounding, so that all high-frequency interference signals can be suppressed, and in addition, significant isolation is provided at the frequency of the low-frequency interference signals, so that A high impedance is formed at the frequency of all low frequency interference signals, equivalent to being ungrounded, so that all low frequency interference signals can be suppressed. Therefore, the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • a third embodiment of the second aspect of the invention comprises:
  • the LC network mounts the device on a printed circuit board; or the LC network is implemented by internal routing of the printed circuit board.
  • the second embodiment of the second aspect of the present invention, the third embodiment of the second aspect of the present invention, the fourth embodiment of the second aspect of the present invention includes:
  • the resonance frequency f 0 is calculated by the following formula:
  • the resonant frequency of the parallel LC network and the resonant frequency of the series LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • a third embodiment of the second aspect of the present invention includes:
  • the LC network includes a parallel LC network, a series LC network, a first order LC network, or a multi-stage LC network.
  • the present invention adjusts the components in the LC network to cause the LC network to resonate in a certain frequency band, and the external impedance of the LC network is 0 or the external impedance is infinite. Equivalent to grounding and non-grounding, so as long as it is properly adjusted, the device can be grounded in the high frequency range and not grounded in the low frequency range. Therefore, the present invention has frequency selective characteristics at the time of grounding, and suppresses high frequency interference signals and Low frequency interference signal.
  • FIG. 1 is a schematic diagram of an embodiment of a method for suppressing an interference signal according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a method for suppressing an interference signal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another embodiment of a method for suppressing an interference signal according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of an apparatus for suppressing interference signals according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of an apparatus for suppressing interference signals according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of an apparatus for suppressing interference signals according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an embodiment of a server according to an embodiment of the present invention.
  • Embodiments of the present invention provide a method and apparatus for suppressing interference signals, which can suppress high frequency interference signals and low frequency interference signals by adjusting components in an LC network.
  • an embodiment of a method for suppressing an interference signal in an embodiment of the present invention includes:
  • the interference signal includes a clock signal
  • the device includes a metal card holder
  • the interference of the interference signal exists on the metal card holder
  • the metal card holder includes a customer identification module (English name: Subscriber Identity Module, English abbreviation: SIM) card seat or Secure Digital Card (English full name: Secure Digital Memory Card, English abbreviation: SD) deck, also includes other types of deck, not limited here.
  • customer identification module English name: Subscriber Identity Module, English abbreviation: SIM
  • Secure Digital Card English full name: Secure Digital Memory Card, English abbreviation: SD
  • the interference signal is input to the LC network, wherein the input end of the LC network is connected to the device, and the output end of the LC network is grounded, which may be an LC network.
  • the output is primarily connected to the printed circuit board on which the device is located.
  • the LC network includes a parallel LC network, a series LC network, a first-order LC network, or a multi-stage LC network.
  • the frequency of the interference signal is acquired, and components in the LC network are adjusted according to the frequency of the interference signal to suppress the interference signal.
  • components in the LC network include inductors and capacitors, and the number of inductors and capacitors can be adjusted according to the frequency of the interference signal.
  • the LC network by adjusting components in the LC network, the LC network generates resonance in a certain frequency band. Since the LC network is externally exhibiting zero impedance or external impedance is infinite, equivalent to grounding and non-grounding, so as long as reasonable adjustment Therefore, the device can be grounded in a high frequency range and not grounded in a low frequency range. Therefore, the present invention has a frequency selective characteristic at the time of grounding, and suppresses a high frequency interference signal and a low frequency interference signal.
  • another embodiment of a method for suppressing an interference signal in an embodiment of the present invention includes:
  • step 201 is similar to step 101, and details are not described herein again.
  • the interference signal is input to the parallel LC network, wherein the input end of the parallel LC network is connected to the device, and the output end of the parallel LC network and the device are located.
  • the printed circuit board is connected primarily to the ground.
  • the frequency of the low frequency interference signal in the interference signal is acquired.
  • the low frequency range is 698-960 MHz
  • the high frequency range is 1710-2700 MHz
  • the frequency of the low frequency interference signal is in the low frequency range
  • the high frequency interference signal in the interference signal The frequency is in the high frequency range.
  • the resonant frequency of the parallel LC network and the frequency matching of the low frequency interference signal may be: the resonant frequency of the parallel LC network is the same as a specific frequency of all the low frequency interference signals, and the parallel connection is performed under the condition that the resonant frequency is equal to the specific frequency.
  • the LC network provides significant isolation at frequencies of all low frequency interference signals, such as 10 to 20 dB, resulting in high impedance at all low frequency interference signals, equivalent to ungrounded, allowing all low frequency interference signals to It is suppressed and, in addition, provides a small isolation at the frequency of the high-frequency interference signal, for example 1 to 2 dB, so that a low impedance is formed at the frequency of all the high-frequency interference signals, equivalent to grounding, so that all the high frequencies Interference signals can be suppressed.
  • the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved.
  • the above step 204 mainly uses the resonance characteristic of the parallel LC network.
  • the resonance characteristic of the parallel LC network is: if the parallel LC network is composed of an inductor and a capacitor, when the resonant frequency is equal to the applied frequency, the parallel connection
  • the impedance of the LC network is purely resistive and has a maximum value.
  • the impedance of the parallel LC network is capacitive, equivalent to a capacitor.
  • the parallel LC The impedance of the network is inductive, equivalent to an inductor Coil.
  • resonant frequency f 0 of the LC network is calculated by the following formula:
  • the resonant frequency of the parallel LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • the resonant frequency of the parallel LC network is matched with the frequency of the low frequency interference signal, so that the parallel LC network can provide significant frequency on all low frequency interference signals as long as reasonable adjustment is made. Isolation, so that high impedance is formed at the frequency of all low frequency interference signals, equivalent to ungrounded, so that all low frequency interference signals can be suppressed, and in addition, provide small isolation at the frequency of high frequency interference signals, This results in a low impedance at all frequencies of the high frequency interference signal, equivalent to grounding, so that all high frequency interference signals can be suppressed. Obviously, the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved. Therefore, the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • another embodiment of a method for suppressing interference signals in an embodiment of the present invention includes:
  • step 301 is similar to step 101, and details are not described herein again.
  • the interference signal is input to the serial LC network, wherein the input end of the serial LC network is connected to the device, and the output end of the serial LC network and the device are located.
  • the printed circuit board is connected primarily to the ground.
  • the frequency of the high frequency interference signal in the interference signal is acquired.
  • the low frequency range is 698-960 MHz
  • the high frequency range is 1710-2700 MHz
  • the frequency of the low frequency interference signal is in the low frequency range
  • the high frequency interference signal in the interference signal The frequency is in the high frequency range.
  • the resonant frequency of the series LC network and the frequency matching of the high frequency interference signal may be: the resonant frequency of the series LC network is the same as a specific frequency of all the high frequency interference signals, and the resonant frequency is equal to a specific frequency.
  • the series LC network is capable of providing very low isolation at frequencies of all high frequency interference signals, such as 1 to 2 dB, resulting in low impedance at all high frequency interference signals, equivalent to grounding, making all High-frequency interfering signals can be suppressed, and in addition, provide significant isolation at frequencies of low-frequency interfering signals, such as 10 to 20 dB, resulting in high impedance at all low-frequency interfering signals, equivalent to ungrounded, making all The low frequency interference signal can be suppressed.
  • the purpose of suppressing high frequency interference signals and low frequency interference signals at the same time is achieved.
  • the above step 304 mainly uses the resonance characteristic of the series LC network.
  • the resonance characteristic of the series LC network is: if the series LC network consists of an inductor and a capacitor, when the resonant frequency is equal to the applied frequency, the series The impedance of the LC network is purely resistive and has a minimum value. When the resonant frequency is lower than the applied frequency, the impedance of the series LC network is inductive, equivalent to an inductive coil. When the resonant frequency is higher than the applied frequency, the series LC The impedance of the network is capacitive, equivalent to a capacitor.
  • resonant frequency f 0 of the LC network is calculated by the following formula:
  • the resonant frequency of the series LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • the serial LC network can provide the frequency of all high frequency interference signals as long as reasonable adjustment is made.
  • Very low isolation resulting in low impedance at all high frequency interference signals, equivalent to grounding, allowing all high frequency interference signals to be suppressed and, in addition, providing significant isolation at the frequency of low frequency interference signals Degree, making the frequency of all low frequency interference signals A high impedance is formed on the rate, equivalent to being ungrounded, so that all low frequency interference signals can be suppressed. Therefore, the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • the LC network can also be implemented by mounting an LC device on the PCB main board, or by using an internal routing of the PCB main board, wherein the LC network can be realized through the internal routing of the PCB main board. Effectively save PCB layout space.
  • the present invention can effectively suppress high frequency interference signals and low frequency interference signals.
  • an embodiment of an apparatus for suppressing interference signals in an embodiment of the present invention includes:
  • the detecting module 401 is configured to detect whether there is radiation of an interference signal on the device;
  • the input module 402 is configured to input the interference signal into the LC network if the detecting module 401 detects the radiation having the interference signal on the device, wherein the input end of the LC network is connected to the device, and the output end of the LC network is grounded;
  • the adjusting module 403 is configured to adjust components in the LC network according to the frequency of the acquired interference signal to suppress the interference signal.
  • the adjustment module 403 adjusts the components in the LC network, so that the LC network generates resonance in a certain frequency band. Since the LC network is externally exhibiting zero impedance or infinite external impedance, equivalent to grounding and non-grounding, As long as it is properly adjusted, the device can be grounded in the high frequency range and not grounded in the low frequency range. Therefore, the present invention has a frequency selective characteristic at the time of grounding, and suppresses the high frequency interference signal and the low frequency interference signal.
  • the LC network comprises a parallel LC network, a series LC Network, first-order LC network or multi-stage LC network.
  • FIG. 5 another embodiment of an apparatus for suppressing interference signals in an embodiment of the present invention includes:
  • a detecting module 501 configured to detect whether there is radiation of an interference signal on the device
  • the input module 502 is configured to: if the detecting module 501 detects the interference of the interference signal on the device, input the interference signal into the parallel LC network, wherein the input end of the parallel LC network is connected to the device, and the output end of the parallel LC network is grounded;
  • the first obtaining module 503 is configured to acquire a frequency of the low frequency interference signal in the interference signal
  • the adjusting module 504 is configured to adjust components in the parallel LC network according to the frequency of the low frequency interference signal, so that the resonant frequency of the parallel LC network matches the frequency of the low frequency interference signal to suppress the interference signal.
  • the resonant frequency f 0 is calculated by the following formula:
  • the resonant frequency of the parallel LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • the adjustment module 504 adjusts the components in the parallel LC network such that the resonant frequency of the parallel LC network matches the frequency of the low frequency interference signal, so that the parallel LC network can be on the frequency of all low frequency interference signals as long as it is properly adjusted.
  • the isolation makes it possible to form a low impedance at all frequencies of the high frequency interference signal, equivalent to grounding, so that all high frequency interference signals can be suppressed.
  • the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • FIG. 6 another embodiment of an apparatus for suppressing interference signals in an embodiment of the present invention includes:
  • the detecting module 601 is configured to detect whether there is interference of the interference signal on the device;
  • the input module 602 is configured to input the interference signal into the serial LC network if the detecting module 601 detects the radiation having the interference signal on the device, wherein the input end of the serial LC network is connected to the device, and the output end of the serial LC network is grounded;
  • the second obtaining module 603 is configured to acquire a frequency of the high frequency interference signal in the interference signal
  • the adjusting module 604 is configured to adjust components in the series LC network according to the frequency of the high frequency interference signal, so that the resonant frequency of the series LC network matches the frequency of the high frequency interference signal to suppress the interference signal.
  • the resonant frequency f 0 is calculated by the following formula:
  • the resonant frequency of the series LC network can be calculated by the above calculation formula, and different l and c can be selected for adjustment.
  • the adjustment module 604 adjusts the components in the series LC network such that the resonant frequency of the series LC network matches the frequency of the high frequency interference signal, so that the serial LC network can be in all high frequency interference signals as long as it is properly adjusted.
  • the obvious isolation makes high impedance on the frequency of all low frequency interference signals, equivalent to ungrounded, so that all low frequency interference signals can be suppressed. Therefore, the present invention has a frequency selective characteristic at the time of grounding while suppressing a high frequency interference signal and a low frequency interference signal.
  • the LC network can also be implemented by mounting an LC device on the PCB main board, or by using an internal routing of the PCB main board, wherein the LC network can be realized through the internal routing of the PCB main board. Effectively save PCB layout space.
  • an embodiment of the server in the embodiment of the present invention includes:
  • FIG. 7 is a schematic structural diagram of a server according to an embodiment of the present invention.
  • the server 700 may have a large difference due to different configurations or performances, and may include one or more central processing units (CPUs) 701 (for example, One or more processors), one or more storage media 704 that store application 702 or data 703 (eg, one or one storage device in Shanghai).
  • the storage medium 704 can be short-lived or persistent.
  • the program stored on storage medium 704 may include one or more modules (not shown), each of which may include a series of instruction operations in the switch.
  • central processor 701 can be configured to communicate with storage medium 704, executing a series of instructions in storage medium 704 on server 700. operating.
  • Server 700 may also include one or more power sources 705, one or more wired or wireless network interfaces 706, one or more output interfaces 707, and/or one or more operating systems 708, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.
  • operating systems 708, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

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Abstract

L'invention concerne un procédé et un dispositif de suppression de signal parasite qui permettent de supprimer spontanément un signal parasite haute fréquence et un signal parasite basse fréquence au moyen d'un ajustement de composants dans un réseau LC. Le procédé consiste : à détecter si un rayonnement d'un signal parasite est présent sur un dispositif (101); si tel est le cas, à introduire le signal parasite dans le réseau LC, une extrémité d'entrée du réseau LC étant connectée au dispositif, et une extrémité de sortie du réseau LC étant mise à la masse (102); à ajuster des composants dans le réseau LC en fonction de la fréquence du signal parasite acquis, de façon à supprimer le signal parasite (103).
PCT/CN2016/078107 2016-03-31 2016-03-31 Procédé et dispositif de suppression de signal parasite WO2017166199A1 (fr)

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PCT/CN2016/078107 WO2017166199A1 (fr) 2016-03-31 2016-03-31 Procédé et dispositif de suppression de signal parasite
CN201680008258.3A CN107534423A (zh) 2016-03-31 2016-03-31 一种抑制干扰信号的方法及装置

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PCT/CN2016/078107 WO2017166199A1 (fr) 2016-03-31 2016-03-31 Procédé et dispositif de suppression de signal parasite

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113285774A (zh) * 2020-02-20 2021-08-20 珠海格力电器股份有限公司 干扰信号处理方法、装置、电子设备及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000308260A (ja) * 1999-04-15 2000-11-02 Nissin Electric Co Ltd 交流フィルタ
CN101138153A (zh) * 2005-03-11 2008-03-05 Rf信息公司 射频电感-电容滤波器电路拓扑
CN201904766U (zh) * 2010-08-13 2011-07-20 惠州泰科立集团股份有限公司 具有临频干扰抑制功能的中频选频电路
CN203839950U (zh) * 2014-05-14 2014-09-17 国网上海市电力公司 一种双调谐交流滤波器
CN204031096U (zh) * 2014-08-21 2014-12-17 石家庄宇讯电子有限公司 一种高p-1指标的电调滤波器
CN104798310A (zh) * 2012-08-14 2015-07-22 美国博通公司 具有自干扰消除的全双工系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2504828Y (zh) * 2001-11-09 2002-08-07 中国船舶重工集团公司第七研究院第七○一研究所 用于屏蔽室的超宽带信号线滤波器
US7589604B2 (en) * 2006-12-01 2009-09-15 Broadcom Corporation Selectable notch filter
US8204444B2 (en) * 2009-02-04 2012-06-19 Qualcomm Incorporated Adjustable transmission filter responsive to internal sadio status
CN202050389U (zh) * 2010-12-29 2011-11-23 海能达通信股份有限公司 一种射频带通滤波电路
CN102710284B (zh) * 2012-06-13 2014-04-16 江苏物联网研究发展中心 二维自适应滤波窄带干扰抑制装置
CN107959509A (zh) * 2017-12-12 2018-04-24 成都金广通科技有限公司 一种用于gis移动终端的接收机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000308260A (ja) * 1999-04-15 2000-11-02 Nissin Electric Co Ltd 交流フィルタ
CN101138153A (zh) * 2005-03-11 2008-03-05 Rf信息公司 射频电感-电容滤波器电路拓扑
CN201904766U (zh) * 2010-08-13 2011-07-20 惠州泰科立集团股份有限公司 具有临频干扰抑制功能的中频选频电路
CN104798310A (zh) * 2012-08-14 2015-07-22 美国博通公司 具有自干扰消除的全双工系统
CN203839950U (zh) * 2014-05-14 2014-09-17 国网上海市电力公司 一种双调谐交流滤波器
CN204031096U (zh) * 2014-08-21 2014-12-17 石家庄宇讯电子有限公司 一种高p-1指标的电调滤波器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DI, XIANFANG: "The EMI Problems and the Case Analysis in a New Generation of Mobile Phone", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 June 2015 (2015-06-15), ISSN: 1674-0246 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113285774A (zh) * 2020-02-20 2021-08-20 珠海格力电器股份有限公司 干扰信号处理方法、装置、电子设备及存储介质
CN113285774B (zh) * 2020-02-20 2022-04-15 珠海格力电器股份有限公司 干扰信号处理方法、装置、电子设备及存储介质

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