JPH0229249B2 - - Google Patents

Info

Publication number
JPH0229249B2
JPH0229249B2 JP56179247A JP17924781A JPH0229249B2 JP H0229249 B2 JPH0229249 B2 JP H0229249B2 JP 56179247 A JP56179247 A JP 56179247A JP 17924781 A JP17924781 A JP 17924781A JP H0229249 B2 JPH0229249 B2 JP H0229249B2
Authority
JP
Japan
Prior art keywords
circuit
detection circuit
detection
output
antenna
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP56179247A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5880939A (ja
Inventor
Hideo Nakamura
Yoshio Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56179247A priority Critical patent/JPS5880939A/ja
Publication of JPS5880939A publication Critical patent/JPS5880939A/ja
Publication of JPH0229249B2 publication Critical patent/JPH0229249B2/ja
Granted legal-status Critical Current

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
    • H04B7/0814—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 based on current reception conditions, e.g. switching to different antenna when signal level is below threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
JP56179247A 1981-11-09 1981-11-09 アンテナ装置 Granted JPS5880939A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56179247A JPS5880939A (ja) 1981-11-09 1981-11-09 アンテナ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56179247A JPS5880939A (ja) 1981-11-09 1981-11-09 アンテナ装置

Publications (2)

Publication Number Publication Date
JPS5880939A JPS5880939A (ja) 1983-05-16
JPH0229249B2 true JPH0229249B2 (US20080094685A1-20080424-C00004.png) 1990-06-28

Family

ID=16062502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56179247A Granted JPS5880939A (ja) 1981-11-09 1981-11-09 アンテナ装置

Country Status (1)

Country Link
JP (1) JPS5880939A (US20080094685A1-20080424-C00004.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626858A (en) * 1983-04-01 1986-12-02 Kentron International, Inc. Antenna system
US4578819A (en) * 1983-07-25 1986-03-25 Sony Corporation Space diversity receiver

Also Published As

Publication number Publication date
JPS5880939A (ja) 1983-05-16

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