HK97489A - Method and apparatus for measuring the strength of a radio frequency signal - Google Patents

Method and apparatus for measuring the strength of a radio frequency signal Download PDF

Info

Publication number
HK97489A
HK97489A HK974/89A HK97489A HK97489A HK 97489 A HK97489 A HK 97489A HK 974/89 A HK974/89 A HK 974/89A HK 97489 A HK97489 A HK 97489A HK 97489 A HK97489 A HK 97489A
Authority
HK
Hong Kong
Prior art keywords
signal
antenna
antennas
receiving means
strength
Prior art date
Application number
HK974/89A
Other languages
German (de)
English (en)
French (fr)
Inventor
Michael Joseph Mclaughlin
Original Assignee
Motorola, 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 Motorola, Inc. filed Critical Motorola, Inc.
Publication of HK97489A publication Critical patent/HK97489A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
HK974/89A 1982-08-03 1989-12-07 Method and apparatus for measuring the strength of a radio frequency signal HK97489A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40512382A 1982-08-03 1982-08-03
PCT/US1983/001180 WO1984000653A1 (en) 1982-08-03 1983-08-02 Method and apparatus for measuring the strength of a radio frequency signal

Publications (1)

Publication Number Publication Date
HK97489A true HK97489A (en) 1989-12-15

Family

ID=23602370

Family Applications (1)

Application Number Title Priority Date Filing Date
HK974/89A HK97489A (en) 1982-08-03 1989-12-07 Method and apparatus for measuring the strength of a radio frequency signal

Country Status (15)

Country Link
EP (1) EP0114890B1 (da)
JP (1) JPS59501530A (da)
KR (1) KR920001176B1 (da)
AT (1) ATE26052T1 (da)
AU (1) AU561186B2 (da)
CA (1) CA1209210A (da)
DE (1) DE3370422D1 (da)
DK (1) DK163700C (da)
FI (1) FI75958C (da)
HK (1) HK97489A (da)
IL (1) IL68987A (da)
MX (1) MX153718A (da)
NO (1) NO161890C (da)
SG (1) SG57689G (da)
WO (1) WO1984000653A1 (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253971B (en) * 1984-10-30 1993-02-03 Secr Defence Improvements in or relating to ionospheric sounding
DE3508285C1 (de) * 1985-03-08 1992-03-26 Siemens Ag Funkueberleitstelle fuer ein Mobilfunknetz
JPH0278331A (ja) * 1988-09-14 1990-03-19 Nec Corp 移動通信用送受信装置
CA2012120C (en) * 1989-03-15 1994-10-18 Seiji Kondou Interference detection apparatus for use in digital mobile communications system
WO1992006566A1 (en) * 1990-10-01 1992-04-16 Motorola, Inc. A single instruction data transfer method and apparatus
US5396224A (en) * 1991-11-22 1995-03-07 Hewlett-Packard Company Telemetered patient location system and method
CN108964738B (zh) * 2018-04-11 2021-09-28 莫志刚 一种用于轨道交通车地无线系统的车载天线系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508349A (fr) * 1966-11-24 1968-01-05 Lannionaise D Electronique Soc Dispositif automatique de commutation d'antenne
US3564287A (en) * 1968-07-25 1971-02-16 Us Navy Maximum seeking zero order hold circuit
US3860872A (en) * 1970-02-05 1975-01-14 Pye Ltd Multiple receiver selection system
US3896375A (en) * 1974-02-06 1975-07-22 United Kingdom Government System for monitoring and indicating peak values of a time varying signal
US3973197A (en) * 1974-07-22 1976-08-03 Koehring Company Peak detector
FR2319905A1 (fr) * 1975-08-01 1977-02-25 Thomson Csf Dispositif de compression de bande et systeme radar comportant un tel dispositif
US4069455A (en) * 1976-11-11 1978-01-17 General Electric Company Arrangement for maintaining reception of a radio receiver on the stronger of two signals
FR2379820A1 (fr) * 1977-02-02 1978-09-01 Cit Alcatel Indicateur de puissance d'un signal
US4183087A (en) * 1978-03-07 1980-01-08 Hughes Aircraft Company Peak deviation sampling
US4295099A (en) * 1979-09-05 1981-10-13 Honeywell Inc. Peak detector

Also Published As

Publication number Publication date
DK176784D0 (da) 1984-04-03
EP0114890A1 (en) 1984-08-08
MX153718A (es) 1986-12-22
NO161890C (no) 1989-10-04
JPS59501530A (ja) 1984-08-23
SG57689G (en) 1989-12-29
FI75958B (fi) 1988-04-29
FI841285A7 (fi) 1984-03-30
EP0114890A4 (en) 1984-10-11
DK176784A (da) 1984-04-03
FI75958C (fi) 1988-08-08
EP0114890B1 (en) 1987-03-18
WO1984000653A1 (en) 1984-02-16
IL68987A (en) 1986-12-31
FI841285A0 (fi) 1984-03-30
KR920001176B1 (ko) 1992-02-06
CA1209210A (en) 1986-08-05
DE3370422D1 (en) 1987-04-23
AU1942483A (en) 1984-02-23
NO161890B (no) 1989-06-26
DK163700C (da) 1992-08-10
DK163700B (da) 1992-03-23
ATE26052T1 (de) 1987-04-15
KR840006078A (ko) 1984-11-21
NO841285L (no) 1984-04-02
IL68987A0 (en) 1983-10-31
AU561186B2 (en) 1987-04-30

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)