TWI553958B - 無線通訊裝置 - Google Patents

無線通訊裝置 Download PDF

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Publication number
TWI553958B
TWI553958B TW101123372A TW101123372A TWI553958B TW I553958 B TWI553958 B TW I553958B TW 101123372 A TW101123372 A TW 101123372A TW 101123372 A TW101123372 A TW 101123372A TW I553958 B TWI553958 B TW I553958B
Authority
TW
Taiwan
Prior art keywords
wireless communication
communication device
sensor
cpu
matching circuit
Prior art date
Application number
TW101123372A
Other languages
English (en)
Other versions
TW201401654A (zh
Inventor
王曉冬
Original Assignee
群邁通訊股份有限公司
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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Publication date
Application filed by 群邁通訊股份有限公司 filed Critical 群邁通訊股份有限公司
Publication of TW201401654A publication Critical patent/TW201401654A/zh
Application granted granted Critical
Publication of TWI553958B publication Critical patent/TWI553958B/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Telephone Function (AREA)
  • Support Of Aerials (AREA)
  • Transmitters (AREA)

Description

無線通訊裝置
本發明涉及一種無線通訊裝置，尤其涉及一種可提高通話性能的無線通訊裝置。
用戶於使用習知的無線通訊裝置進行通話時，頭部及手部比較靠近無線通訊裝置，易對其內所設置天線產生干擾，使天線的諧振頻率往高頻偏移，影響天線收發訊號的穩定性，造成無線通訊裝置通話性能不佳。
有鑒於此，有必要提供一種可提高通話性能的無線通訊裝置。
一種無線通訊裝置，該無線通訊裝置包括感測器、中央處理器(central processing unit，CPU)、天線模組及匹配電路；該感測器與該CPU電性連接，該天線模組經該匹配電路與該CPU相連；該感測器感測該無線通訊裝置處於通話狀態並有外部物體進入該感測器的設定距離時發送感測訊號至該CPU，該CPU接收該感應訊號並發送控制訊號至匹配電路，該匹配電路控制該天線模組的諧振頻率往低頻偏移。
本發明所述的無線通訊裝處於通話狀態時控制天線模組的諧振頻率往低頻偏移，抵消甚至消除天線模組因用戶頭部或手部的干擾而引起的諧振頻率往高頻偏移，從而獲得較佳的通話性能。
100‧‧‧無線通訊裝置
10‧‧‧感測器
20‧‧‧CPU
30‧‧‧天線模組
40‧‧‧匹配電路
D‧‧‧變容二極體
C1‧‧‧第一電容
R‧‧‧電阻
C2‧‧‧第二電容
圖1是本發明的無線通訊裝置的部分電路圖。
請參閱圖1，本發明較佳實施例的無線通訊裝置100包括感測器10、中央處理器(central processing unit，CPU)20、天線模組30及匹配電路40。該感測器10與該CPU20電性連接，該天線模組30經該匹配電路40與該CPU20相連。
該感測器10設置於無線通訊裝置100內，較佳的設置於無線通訊裝置100的聽筒附近，用以於無線通訊裝置100正處於通話狀態時感測是否有外部物體進入感測器的設定距離，如用戶的手部或頭部是否靠近或接觸該無線通訊裝置100，並在外部物體靠近或接觸該無線通訊裝置100時發送感測訊號至CPU20。於本較佳實施例中，該感測器10為光感測器，其可根據外部物體靠近或接觸該無線通訊裝置100時該感測器10接收的光線的變化，判斷外部物體是否靠近或接觸該無線通訊裝置100。可以理解，該感測器10也可以為接近感測器(proximity sensor)，當外部物體進入接近感測器的設定距離內時，該接近感測器可以檢測到。
該CPU20接收感測器10發送的感測訊號，並發送控制訊號至匹配電路40，控制匹配電路40對天線模組30的諧振頻率進行調節。通常，該CPU20還會關閉無線通訊裝置100的螢幕以省電。
該天線模組30用以收發無線通訊訊號，其包括單極子天線。
該匹配電路40包括變容二極體D、第一電容C1、電阻R及第二電容C2。
該變容二極體D的陰極經第一電容C1與天線模組30電性連接，陽極接地。該電阻R與第二電容C2串聯後一端電連接至第一電容C1與天線模組30之間，另一端接地。該CPU20電連接至變容二極體D與第一電容C1之間。當CPU20發送控制訊號至變容二極體D時，變容二極體D的等效電容改變，從而使得天線模組30的諧振頻率往低頻偏移，進而抵消甚至消除因用戶頭部或手部的干擾而引起的天線模組30的諧振頻率往高頻的偏移，從而使得無線通訊裝置100具有較佳的通話效果。
用戶於使用無線通訊裝置100進行通話時，感測器10感測到用戶頭部靠近或接觸該無線通訊裝置100，並發送感測訊號至CPU20，該CPU20接收到該感應訊號後發送控制訊號至匹配電路40以改變變容二極體D的電容，使得該匹配電路40控制天線模組30的諧振頻率往低頻偏移。
本發明所述的無線通訊裝置100處於通話狀態時控制天線模組30的諧振頻率往低頻偏移，抵消甚至消除天線模組30因用戶頭部或手部的干擾而引起的諧振頻率往高頻偏移，從而獲得較佳的通話性能。
100‧‧‧無線通訊裝置
10‧‧‧感測器
20‧‧‧CPU
30‧‧‧天線模組
40‧‧‧匹配電路
D‧‧‧變容二極體
C1‧‧‧第一電容
R‧‧‧電阻
C2‧‧‧第二電容

Claims (8)

  1. 一種無線通訊裝置，其改良在於：該無線通訊裝置包括感測器、中央處理器(central processing unit，CPU)、天線模組及匹配電路；該感測器與該CPU電性連接，該天線模組經該匹配電路與該CPU相連；該感測器感測該無線通訊裝置處於通話狀態並有外部物體進入該感測器的設定距離時發送感應訊號至該CPU，該CPU接收該感應訊號並發送控制訊號至匹配電路，該匹配電路控制該天線模組的諧振頻率往低頻偏移。
  2. 如申請專利範圍第1項所述之無線通訊裝置，其中該匹配電路包括變容二極體，該變容二極體的陰極與該天線模組及該CPU電性連接，陽極接地，該CPU發送控制訊號改變該變容二極體的等效電容。
  3. 如申請專利範圍第2項所述之無線通訊裝置，其中該匹配電路還包括第一電容，該變容二極體的陰極經該第一電容與該天線模組電性連接。
  4. 如申請專利範圍第3項所述之無線通訊裝置，其中該匹配電路還包括電阻及第二電容，該電阻與該第二電容串聯後一端連接至第一電容與天線模組之間，另一端接地。
  5. 如申請專利範圍第1項所述之無線通訊裝置，其中該感測器感測通過感測用戶頭部是否靠近或接觸該無線通訊裝置判斷無線通訊裝置是否處於通話狀態。
  6. 如申請專利範圍第5項所述之無線通訊裝置，其中該感測器為光感測器。
  7. 如申請專利範圍第5項所述之無線通訊裝置，其中該感測器為接近感測器。
  8. 如申請專利範圍第5項所述之無線通訊裝置，其中該感測器設置於聽筒附近。
TW101123372A 2012-06-21 2012-06-29 無線通訊裝置 TWI553958B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210206654.0A CN103516385A (zh) 2012-06-21 2012-06-21 无线通信装置

Publications (2)

Publication Number Publication Date
TW201401654A TW201401654A (zh) 2014-01-01
TWI553958B true TWI553958B (zh) 2016-10-11

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CN (1) CN103516385A (zh)
TW (1) TWI553958B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514569A (zh) * 2014-09-23 2016-04-20 联想(北京)有限公司 一种电子设备
TWI597947B (zh) * 2016-04-08 2017-09-01 晶鈦國際電子股份有限公司 通訊裝置
KR102324967B1 (ko) * 2017-09-22 2021-11-12 삼성전자 주식회사 외부 객체의 근접에 따라 변경된 공진 주파수를 이용하여 외부 전자 장치와 통신을 수행하는 방법 및 이를 지원하는 전자 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050130699A1 (en) * 1999-07-27 2005-06-16 Kim Hong J. Antenna impedance matching device and method for a portable radio telephone
US20110076966A1 (en) * 2009-09-28 2011-03-31 Sony Ericsson Mobile Communications Ab Method for driving an antenna of a mobile device
TW201220728A (en) * 2010-09-29 2012-05-16 Asustek Comp Inc Antenna matching circuit control device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011004622B4 (de) * 2011-02-23 2013-04-18 Ident Technology Ag Kapazitive Sensoreinrichtung und Funkgerät mit kapazitiver Sensoreinrichtung sowie Verfahren zum Einstellen einer Sendeleistung eines Funkgerätes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050130699A1 (en) * 1999-07-27 2005-06-16 Kim Hong J. Antenna impedance matching device and method for a portable radio telephone
US20110076966A1 (en) * 2009-09-28 2011-03-31 Sony Ericsson Mobile Communications Ab Method for driving an antenna of a mobile device
TW201220728A (en) * 2010-09-29 2012-05-16 Asustek Comp Inc Antenna matching circuit control device

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US8903322B2 (en) 2014-12-02
TW201401654A (zh) 2014-01-01
CN103516385A (zh) 2014-01-15
US20130344914A1 (en) 2013-12-26

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