IN2014MN01999A - - Google Patents

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Publication number
IN2014MN01999A
IN2014MN01999A IN1999MUN2014A IN2014MN01999A IN 2014MN01999 A IN2014MN01999 A IN 2014MN01999A IN 1999MUN2014 A IN1999MUN2014 A IN 1999MUN2014A IN 2014MN01999 A IN2014MN01999 A IN 2014MN01999A
Authority
IN
India
Prior art keywords
mode
sps receiver
sps
receiver
bias current
Prior art date
Application number
Inventor
Yang Xu
Timothy Paul Pals
Kevin Hsi-Huai Wang
Original Assignee
Qualcomm Inc
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.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014MN01999A publication Critical patent/IN2014MN01999A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • 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
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/22—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
    • H03F1/223—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively with MOSFET's
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3205—Modifications of amplifiers to reduce non-linear distortion in field-effect transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • 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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/34—Power consumption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
    • 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)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Transceivers (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

A satellite positioning system (SPS) receiver that can provide good performance with low power consumption is described. The SPS receiver may be operated in one of multiple modes, which may be associated with different bias current settings for the SPS receiver. One of the modes may be selected based on output power level of a transmitter co-located with the SPS receiver. The bias current of an LNA, a mixer, and/or an LO generator within the SPS receiver may be set based on the selected mode. In one design, a first (e.g., lower power) mode may be selected for the SPS receiver if the transmitter output power level is below a switch point. A second (e.g., high linearity) mode may be selected if the transmitter output power level is above the switch point. The second mode is associated with more bias current for the SPS receiver than the first mode.
IN1999MUN2014 2007-02-27 2008-02-20 IN2014MN01999A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89187307P 2007-02-27 2007-02-27
US11/753,542 US8812052B2 (en) 2007-02-27 2007-05-24 SPS receiver with adjustable linearity
PCT/US2008/054461 WO2008106354A2 (en) 2007-02-27 2008-02-20 Sps receiver with adjustable linearity

Publications (1)

Publication Number Publication Date
IN2014MN01999A true IN2014MN01999A (en) 2015-08-14

Family

ID=39564232

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1999MUN2014 IN2014MN01999A (en) 2007-02-27 2008-02-20

Country Status (11)

Country Link
US (3) US8812052B2 (en)
EP (2) EP2118672B1 (en)
JP (2) JP4768859B2 (en)
KR (1) KR101177738B1 (en)
CN (2) CN102645660B (en)
BR (1) BRPI0807699A2 (en)
CA (1) CA2676667C (en)
IN (1) IN2014MN01999A (en)
RU (1) RU2433529C2 (en)
TW (3) TWI388872B (en)
WO (1) WO2008106354A2 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8812052B2 (en) 2007-02-27 2014-08-19 Qualcomm Incorporated SPS receiver with adjustable linearity
US8515362B2 (en) * 2008-10-30 2013-08-20 Qualcomm, Incorporated Mixer architectures
US8606193B2 (en) * 2008-11-13 2013-12-10 Qualcomm Incorporated RF transceiver IC having internal loopback conductor for IP2 self test
US8175568B2 (en) * 2009-03-24 2012-05-08 Qualcomm Incorporated Method of improving battery life
US9231630B2 (en) * 2009-05-05 2016-01-05 San Diego, CA Radio device having dynamic intermediate frequency scaling
EP2421171B1 (en) * 2010-08-17 2015-10-14 Broadcom Corporation WiMAX/WiFi coexistence
US8964901B2 (en) * 2011-01-07 2015-02-24 Massachusetts Institute Of Technology Analog/digital co-design methodology to achieve high linearity and low power dissipation in a radio frequency (RF) receiver
JP2013143637A (en) * 2012-01-10 2013-07-22 Ntt Docomo Inc Transmission/reception sharing radio circuit and reception signal amplification method
US9031167B2 (en) * 2012-01-31 2015-05-12 Innophase Inc. Receiver architecture and methods for demodulating quadrature phase shift keying signals
US9219452B2 (en) * 2012-05-22 2015-12-22 Intel Deutschland Gmbh Dual mode receiver with RF splitter using programmable passive components
US10110463B2 (en) * 2012-09-11 2018-10-23 Higher Ground Llc Personal communications device for multiple communications systems
EP2760130B1 (en) * 2013-01-28 2015-07-01 Nxp B.V. Bias circuit
CN104348430B (en) * 2013-07-30 2018-02-09 上海东软载波微电子有限公司 Low-noise amplifier and chip
CN103412317A (en) * 2013-08-15 2013-11-27 上海司南卫星导航技术有限公司 Radio-frequency circuit structure for achieving function of converting GNSS satellite signals into baseband signals
FR3012706B1 (en) * 2013-10-25 2017-04-21 Thales Sa METHOD FOR MANAGING CONSUMPTION, AND RECEIVE CHAIN USING SUCH A METHOD
US20150163747A1 (en) * 2013-12-11 2015-06-11 Qualcomm Incorporated Common gate buffer having adjustable current consumption in a receiver
US9523994B2 (en) * 2014-03-07 2016-12-20 Stmicroelectronics Asia Pacific Pte Ltd Temperature insensitive transient current source
US9413297B2 (en) * 2014-03-09 2016-08-09 National Chiao Tung University Constant transconductance bias circuit
US9166530B2 (en) * 2014-03-16 2015-10-20 Advanced Semiconductor Engineering Inc. Low noise amplifier and receiver
US9300264B2 (en) * 2014-08-22 2016-03-29 Mediatek Inc. Receiver arrangement and method of performing operations of receiver
JP6386312B2 (en) 2014-09-09 2018-09-05 ルネサスエレクトロニクス株式会社 Semiconductor device
WO2016089239A1 (en) * 2014-12-04 2016-06-09 Limited Liability Company "Topcon Positioning Systems" Detection of excessively high interference signal levels during reception of global navigation satellite system signals
US9667200B2 (en) * 2014-12-23 2017-05-30 Skyworks Solutions, Inc. Peak detecting cascode for breakdown protection
US10211679B1 (en) * 2015-08-31 2019-02-19 Spatiallink Corporation Hybrid source of energy supply scheme for internet of things system on chip
US10827431B2 (en) * 2016-01-06 2020-11-03 Apple Inc. Receiver front-end power consumption reduction via linearity and sensitivity adaptation
KR102500806B1 (en) 2016-08-30 2023-02-17 삼성전자주식회사 Current controlling circuit and bias generator including the same
FR3059495A1 (en) * 2016-11-29 2018-06-01 Stmicroelectronics (Grenoble 2) Sas ATTENUATING DEVICE IN A RADIO FREQUENCY TRANSMISSION STAGE
TWI634754B (en) * 2017-03-14 2018-09-01 瑞昱半導體股份有限公司 Receiving circuit of wireless communication system and method of receiving rf signal
JP6781670B2 (en) * 2017-06-16 2020-11-04 日本電信電話株式会社 amplifier
US10667188B2 (en) * 2017-06-21 2020-05-26 Qualcomm Incoporated Method and apparatus for multiplexing hybrid satellite constellations
US11005431B2 (en) * 2019-04-03 2021-05-11 Analog Devices International Unlimited Company Power amplifier fault detector
CN110324077A (en) * 2019-07-05 2019-10-11 上海航天测控通信研究所 A kind of spaceborne dual-mode transmitter
KR102740151B1 (en) * 2020-05-27 2024-12-09 삼성전자주식회사 Electronic device with a plurality of antenna moudulea and a method for driving the same

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944025A (en) 1988-08-09 1990-07-24 At&E Corporation Direct conversion FM receiver with offset
US5548533A (en) * 1994-10-07 1996-08-20 Northern Telecom Limited Overload control for a central processor in the switching network of a mobile communications system
JPH08321789A (en) 1995-05-26 1996-12-03 Nec Eng Ltd Radio receiver
US5627857A (en) 1995-09-15 1997-05-06 Qualcomm Incorporated Linearized digital automatic gain control
US6072996A (en) 1997-03-28 2000-06-06 Intel Corporation Dual band radio receiver
US6498926B1 (en) 1997-12-09 2002-12-24 Qualcomm Incorporated Programmable linear receiver having a variable IIP3 point
US6194967B1 (en) 1998-06-17 2001-02-27 Intel Corporation Current mirror circuit
JP2000022559A (en) 1998-07-03 2000-01-21 Nec Corp Transmission output control circuit
US6088348A (en) 1998-07-13 2000-07-11 Qualcom Incorporated Configurable single and dual VCOs for dual- and tri-band wireless communication systems
GB9818397D0 (en) 1998-08-25 1998-10-21 Philips Electronics Nv Low if receiver
GB9818400D0 (en) 1998-08-25 1998-10-21 Philips Electronics Nv Low if reciever
KR100556485B1 (en) 1999-06-21 2006-03-03 엘지전자 주식회사 Washing machines of direct type washing machines
US6442375B1 (en) 1999-07-14 2002-08-27 Ericsson Inc. Systems and methods for maintaining operation of a receiver co-located with a transmitter and susceptible to interference therefrom by desensitization of the receiver
DE69922802D1 (en) 1999-08-24 2005-01-27 Ericsson Telefon Ab L M Parallel operation of devices with several communication standards
US7555263B1 (en) 1999-10-21 2009-06-30 Broadcom Corporation Adaptive radio transceiver
US6442380B1 (en) 1999-12-22 2002-08-27 U.S. Philips Corporation Automatic gain control in a zero intermediate frequency radio device
US6529164B1 (en) 2000-03-31 2003-03-04 Ge Medical Systems Information Technologies, Inc. Object location monitoring within buildings
GB0028652D0 (en) 2000-11-24 2001-01-10 Koninkl Philips Electronics Nv Radio receiver
US6694131B1 (en) 2001-02-21 2004-02-17 Mitsubishi Electric Corporation Method and apparatus for adaptive image rejection
JP4548562B2 (en) 2001-03-26 2010-09-22 ルネサスエレクトロニクス株式会社 Current mirror circuit and analog-digital conversion circuit
US6978125B2 (en) 2001-07-05 2005-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for tuning pre-selection filters in radio receivers
US6392492B1 (en) 2001-06-28 2002-05-21 International Business Machines Corporation High linearity cascode low noise amplifier
JP3700933B2 (en) 2001-07-27 2005-09-28 松下電器産業株式会社 Receiver and communication terminal
US6738604B2 (en) 2001-07-31 2004-05-18 Qualcomm, Inc. Programmable IF bandwidth using fixed bandwidth filters
US7277682B2 (en) * 2002-05-16 2007-10-02 Silicon Storage Technology, Inc. RF passive mixer with DC offset tracking and local oscillator DC bias level-shifting network for reducing even-order distortion
US8364080B2 (en) * 2002-08-01 2013-01-29 Broadcom Corporation Method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11 B/G and bluetooth devices in coexistent operation
US7116958B1 (en) 2002-08-02 2006-10-03 Nortel Networks Limited Interference rejection in a radio receiver
US6738605B1 (en) * 2002-09-26 2004-05-18 Thomson Licensing S.A. Method for optimizing an operating point of a power amplifier in a WCDMA mobile terminal
US6900762B2 (en) 2002-09-30 2005-05-31 Lucent Technologies Inc. Methods and apparatus for location determination based on dispersed radio frequency tags
US7194050B2 (en) 2002-09-30 2007-03-20 Nortel Networks Limited Reducing narrowband interference in a wideband signal
US6765448B2 (en) 2002-10-30 2004-07-20 Qualcomm Incorporated Self-biased VCO
US20050134336A1 (en) 2002-10-31 2005-06-23 Goldblatt Jeremy M. Adjustable-bias VCO
TW595133B (en) * 2003-03-14 2004-06-21 Wen-Feng Luo Wireless signal transceiver
ATE478477T1 (en) 2003-06-10 2010-09-15 Nokia Corp SIGNAL RECEPTION IN A DEVICE HAVING A TRANSMITTER
US7730415B2 (en) * 2003-09-05 2010-06-01 Fisher-Rosemount Systems, Inc. State machine function block with a user modifiable state transition configuration database
WO2005055419A1 (en) * 2003-12-04 2005-06-16 Nec Corporation Gain-variable voltage/current converting circuit having current compensating circuit for compensating for variation of dc current flowing through active element that performs voltage/current conversion
US9026070B2 (en) 2003-12-18 2015-05-05 Qualcomm Incorporated Low-power wireless diversity receiver with multiple receive paths
JP4258373B2 (en) 2003-12-26 2009-04-30 セイコーエプソン株式会社 Receiving machine
US7177617B2 (en) 2003-12-30 2007-02-13 Silicon Laboratories Method and apparatus for enhancing signal quality within a wireless receiver
TWI373925B (en) 2004-02-10 2012-10-01 Tridev Res L L C Tunable resonant circuit, tunable voltage controlled oscillator circuit, tunable low noise amplifier circuit and method of tuning a resonant circuit
US7110742B2 (en) * 2004-03-16 2006-09-19 Broadcom Corporation Low noise amplifier with constant input impedance
WO2005106523A1 (en) 2004-04-02 2005-11-10 Qualcomm Incorporated Methods and apparatuses for beacon assisted position determination systems
US7283851B2 (en) * 2004-04-05 2007-10-16 Qualcomm Incorporated Power saving mode for receiver circuit blocks based on transmitter activity
US7272374B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Dynamic selection of local oscillator signal injection for image rejection in integrated receivers
JP2006020035A (en) 2004-07-01 2006-01-19 Nec Corp Wireless communication device
US7113044B2 (en) * 2004-08-18 2006-09-26 Texas Instruments Incorporated Precision current mirror and method for voltage to current conversion in low voltage applications
DE602004020988D1 (en) 2004-09-15 2009-06-18 St Microelectronics Belgium Nv VLIF transmitter for a "Bluetooth Wireless Technology" device
JP2006121160A (en) 2004-10-19 2006-05-11 Matsushita Electric Ind Co Ltd Multi-mode receiver and communication terminal
JP2006157644A (en) * 2004-11-30 2006-06-15 Fujitsu Ltd Current mirror circuit
JP2006237711A (en) * 2005-02-22 2006-09-07 Renesas Technology Corp Multi-band low-noise amplifier, multi-band low-noise amplifier module, wireless semiconductor integrated circuit, and multi-band rf module
US7453396B2 (en) 2005-04-04 2008-11-18 Atc Technologies, Llc Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
JP2006311353A (en) 2005-04-28 2006-11-09 Samsung Electronics Co Ltd Downconverter and upconverter
FI20055424A0 (en) 2005-08-04 2005-08-04 Nokia Corp Procedure for controlling linearity in communication system, terminal device and receiver
US7529322B2 (en) 2005-08-26 2009-05-05 University Of Macau Two-step channel selection for wireless receiver front-ends
US7706766B2 (en) * 2005-09-16 2010-04-27 Broadcom Corporation Method and system for a programmable biasing mechanism for a mobile digital television environment
US8077795B2 (en) 2005-10-03 2011-12-13 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for interference mitigation
US7890076B2 (en) 2005-12-15 2011-02-15 Telefonaktiebolaget Lm Ericsson (Publ) Mixer circuit and method
US7580692B2 (en) 2006-05-16 2009-08-25 Research In Motion Limited Mobile wireless communications device having low-IF receiver circuitry that adapts to radio environment
US7835718B2 (en) * 2006-12-06 2010-11-16 Panasonic Corporation Semiconductor circuit for wireless receiving provided with controller circuit for controlling bias current
US8812052B2 (en) 2007-02-27 2014-08-19 Qualcomm Incorporated SPS receiver with adjustable linearity
US7949319B2 (en) 2007-03-22 2011-05-24 Silicon Laboratories Inc. Receiver architectures for digital radio broadcasts and associated methods
US20080261548A1 (en) 2007-04-19 2008-10-23 Krone Andrew W System and method for selecting an intermediate frequency
CN106353718A (en) 2007-10-29 2017-01-25 诺基亚技术有限公司 Method for indoor positioning system
US8107908B2 (en) 2008-02-08 2012-01-31 Broadcom Corporation Selective fast image rejection
US8515372B2 (en) 2008-03-24 2013-08-20 Freescale Semiconductor, Inc. Receiver configurable in a plurality of modes
US8249538B2 (en) 2008-11-24 2012-08-21 Cisco Technology, Inc. Offset direct conversion receiver
US9231630B2 (en) 2009-05-05 2016-01-05 San Diego, CA Radio device having dynamic intermediate frequency scaling
US8310312B2 (en) * 2009-08-11 2012-11-13 Qualcomm, Incorporated Amplifiers with improved linearity and noise performance
US8774874B2 (en) 2010-06-04 2014-07-08 Qualcomm Incorporated Reducing power consumption by in-circuit measurement of receive band attenuation and/or noise

Also Published As

Publication number Publication date
CA2676667A1 (en) 2008-09-04
EP2118672B1 (en) 2012-10-31
TW201300812A (en) 2013-01-01
CA2676667C (en) 2013-09-24
CN102645660A (en) 2012-08-22
RU2433529C2 (en) 2011-11-10
TWI472789B (en) 2015-02-11
KR101177738B1 (en) 2012-09-07
TWI456236B (en) 2014-10-11
KR20090115813A (en) 2009-11-06
JP2011182437A (en) 2011-09-15
WO2008106354A3 (en) 2008-11-27
JP2010533990A (en) 2010-10-28
TW200903011A (en) 2009-01-16
CN102645660B (en) 2014-10-08
US8812052B2 (en) 2014-08-19
JP5242729B2 (en) 2013-07-24
RU2009135792A (en) 2011-04-10
CN101627316A (en) 2010-01-13
US20140099885A1 (en) 2014-04-10
US9154088B2 (en) 2015-10-06
EP2118672A2 (en) 2009-11-18
US9130509B2 (en) 2015-09-08
US20120231729A1 (en) 2012-09-13
TWI388872B (en) 2013-03-11
BRPI0807699A2 (en) 2014-05-27
TW201226955A (en) 2012-07-01
CN101627316B (en) 2013-10-09
WO2008106354A2 (en) 2008-09-04
US20140097905A1 (en) 2014-04-10
EP2423709A1 (en) 2012-02-29
JP4768859B2 (en) 2011-09-07

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