[go: up one dir, main page]

JPS56156031A - Diversity receiver for vehicle - Google Patents

Diversity receiver for vehicle

Info

Publication number
JPS56156031A
JPS56156031A JP5940980A JP5940980A JPS56156031A JP S56156031 A JPS56156031 A JP S56156031A JP 5940980 A JP5940980 A JP 5940980A JP 5940980 A JP5940980 A JP 5940980A JP S56156031 A JPS56156031 A JP S56156031A
Authority
JP
Japan
Prior art keywords
antenna
reception
circuit
travelling
electric field
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.)
Pending
Application number
JP5940980A
Other languages
Japanese (ja)
Inventor
Motomiki Hirano
Hiroshige Fukuhara
Norio Fujiki
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5940980A priority Critical patent/JPS56156031A/en
Publication of JPS56156031A publication Critical patent/JPS56156031A/en
Pending 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)
  • Details Of Aerials (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To ensure a good reception for a car even when travelling in a region of weak electric field, by carrying out a switching reception with use of a whip antenna plus an antenna having plural feeding points. CONSTITUTION:When a car is travelling in the strong/medium electric field regions having a level higher than the threshold level of an FM receiver 16, an antenna switching circuit 15 selects a whip antenna 10 to receive an FM broadcast. If a multipath reception arises under such conditions, a detecting circuit 19 detects a reduction of the field level caused by the antenna 10 or an occurrence of echo distortion. Thus a control circuit 20 is actuated, and thus the antenna 10 is changed to a glass antenna 11 for reception by the circuit 15.
JP5940980A 1980-05-07 1980-05-07 Diversity receiver for vehicle Pending JPS56156031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5940980A JPS56156031A (en) 1980-05-07 1980-05-07 Diversity receiver for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5940980A JPS56156031A (en) 1980-05-07 1980-05-07 Diversity receiver for vehicle

Publications (1)

Publication Number Publication Date
JPS56156031A true JPS56156031A (en) 1981-12-02

Family

ID=13112444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5940980A Pending JPS56156031A (en) 1980-05-07 1980-05-07 Diversity receiver for vehicle

Country Status (1)

Country Link
JP (1) JPS56156031A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499606A (en) * 1982-12-27 1985-02-12 Sri International Reception enhancement in mobile FM broadcast receivers and the like
US4707701A (en) * 1984-10-26 1987-11-17 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4717922A (en) * 1984-11-06 1988-01-05 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4717921A (en) * 1984-11-15 1988-01-05 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4723127A (en) * 1984-12-12 1988-02-02 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4789866A (en) * 1984-11-08 1988-12-06 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4792807A (en) * 1985-03-27 1988-12-20 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4804966A (en) * 1984-10-29 1989-02-14 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4811024A (en) * 1984-10-17 1989-03-07 Toyota Jidosha Kabushiki Kaisha Automobile antenna
US4821042A (en) * 1985-06-28 1989-04-11 Toyota Jidosha Kabushiki Kaisha Vehicle antenna system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499606A (en) * 1982-12-27 1985-02-12 Sri International Reception enhancement in mobile FM broadcast receivers and the like
US4811024A (en) * 1984-10-17 1989-03-07 Toyota Jidosha Kabushiki Kaisha Automobile antenna
US4707701A (en) * 1984-10-26 1987-11-17 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4804966A (en) * 1984-10-29 1989-02-14 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4717922A (en) * 1984-11-06 1988-01-05 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4789866A (en) * 1984-11-08 1988-12-06 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4717921A (en) * 1984-11-15 1988-01-05 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4723127A (en) * 1984-12-12 1988-02-02 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4792807A (en) * 1985-03-27 1988-12-20 Toyota Jidosha Kabushiki Kaisha Automobile antenna system
US4821042A (en) * 1985-06-28 1989-04-11 Toyota Jidosha Kabushiki Kaisha Vehicle antenna system

Similar Documents

Publication Publication Date Title
DE3687854D1 (en) ANTENNA DIVERSITY RECEIVING SYSTEM FOR ELIMINATION OF RECEIVING ERRORS.
JPS56156031A (en) Diversity receiver for vehicle
CA2041283A1 (en) Antenna selection diversity reception system
ATE256940T1 (en) SCANNING ANTENNA DIVERSITY SYSTEM FOR VEHICLES
EP0318665A3 (en) Antenna selection control circuit
EP0181120A3 (en) Automobile antenna system
JPS56168440A (en) Diversity receiver for car
TW431022B (en) Glass antenna device for an automobile
JPS56162503A (en) Antenna for vehicle
JPS56158541A (en) Diversity receiver for car
JPS56168442A (en) Diversity receiver for car
JPS5668037A (en) Space diversity reception system
EP0831597A3 (en) An information receiving system and a control method therefor
JPS56157138A (en) Diversity receiver for vehicle
JPS5779739A (en) Space diversity reception system
JPS56122535A (en) Antenna equipment
JPS6432726A (en) Automobile-mounted electrical equipment
JPS56158540A (en) Diversity receiver for car
JPS5614716A (en) Automatic tuning receiver
JPS56168443A (en) Diversity receiver for car
SE9500911D0 (en) Radio receiver for use in vehicles
JPS57180241A (en) Radio communication system
JPS57159139A (en) Diversity receiver
JPS568932A (en) Space diversity system
JPS57141146A (en) Radio repeating device