FI20050748A - Menetelmä ja laite vastaanottimen häiriösietoisuuden parantamiseksi - Google Patents

Menetelmä ja laite vastaanottimen häiriösietoisuuden parantamiseksi Download PDF

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Publication number
FI20050748A
FI20050748A FI20050748A FI20050748A FI20050748A FI 20050748 A FI20050748 A FI 20050748A FI 20050748 A FI20050748 A FI 20050748A FI 20050748 A FI20050748 A FI 20050748A FI 20050748 A FI20050748 A FI 20050748A
Authority
FI
Finland
Prior art keywords
switch
resistance
closed position
coupled
received signal
Prior art date
Application number
FI20050748A
Other languages
English (en)
Swedish (sv)
Other versions
FI117840B (fi
Inventor
Charles E Wheatley Iii
Richard K Kornfeld
Paul E Peterzell
Ana L Weiland
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23407701&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI20050748(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of FI20050748A publication Critical patent/FI20050748A/fi
Application granted granted Critical
Publication of FI117840B publication Critical patent/FI117840B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
    • 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
    • H04B1/06—Receivers
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transceivers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Superheterodyne Receivers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Amplifiers (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
FI20050748A 1994-12-16 2005-07-13 Laite vastaanottimen häiriösietoisuuden parantamiseksi FI117840B (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US35795194 1994-12-16
US08/357,951 US5722063A (en) 1994-12-16 1994-12-16 Method and apparatus for increasing receiver immunity to interference
US52246795 1995-08-31
US08/522,467 US5732341A (en) 1994-12-16 1995-08-31 Method and apparatus for increasing receiver immunity to interference
PCT/US1995/016002 WO1996019048A2 (en) 1994-12-16 1995-12-11 Method and apparatus for increasing receiver immunity to interference
US9516002 1995-12-11

Publications (2)

Publication Number Publication Date
FI20050748A true FI20050748A (fi) 2005-07-13
FI117840B FI117840B (fi) 2007-03-15

Family

ID=23407701

Family Applications (3)

Application Number Title Priority Date Filing Date
FI972501A FI116342B (fi) 1994-12-16 1997-06-12 Laite vastaanottimen häiriösietoisuuden parantamiseksi
FI20050748A FI117840B (fi) 1994-12-16 2005-07-13 Laite vastaanottimen häiriösietoisuuden parantamiseksi
FI20060862A FI118662B (fi) 1994-12-16 2006-09-27 Menetelmä ja laite vastaanottimen häiriösietoisuuden parantamiseksi

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FI972501A FI116342B (fi) 1994-12-16 1997-06-12 Laite vastaanottimen häiriösietoisuuden parantamiseksi

Family Applications After (1)

Application Number Title Priority Date Filing Date
FI20060862A FI118662B (fi) 1994-12-16 2006-09-27 Menetelmä ja laite vastaanottimen häiriösietoisuuden parantamiseksi

Country Status (21)

Country Link
US (3) US5722063A (fi)
EP (3) EP1503517B1 (fi)
JP (8) JPH10510965A (fi)
KR (1) KR100369272B1 (fi)
CN (4) CN1090847C (fi)
AR (1) AR000363A1 (fi)
AT (3) ATE403284T1 (fi)
AU (5) AU703393B2 (fi)
BR (1) BR9510050A (fi)
CA (3) CA2467295C (fi)
DE (3) DE69533405T2 (fi)
ES (3) ES2225851T3 (fi)
FI (3) FI116342B (fi)
HK (1) HK1004453A1 (fi)
IL (2) IL116364A (fi)
MX (1) MX9704445A (fi)
MY (1) MY117285A (fi)
RU (3) RU2305363C2 (fi)
TW (1) TW301826B (fi)
WO (1) WO1996019048A2 (fi)
ZA (1) ZA9510321B (fi)

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