JPS56168442A - Diversity receiver for car - Google Patents

Diversity receiver for car

Info

Publication number
JPS56168442A
JPS56168442A JP7132580A JP7132580A JPS56168442A JP S56168442 A JPS56168442 A JP S56168442A JP 7132580 A JP7132580 A JP 7132580A JP 7132580 A JP7132580 A JP 7132580A JP S56168442 A JPS56168442 A JP S56168442A
Authority
JP
Japan
Prior art keywords
value
over
received
antenna
signal
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
JP7132580A
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 JP7132580A priority Critical patent/JPS56168442A/en
Publication of JPS56168442A publication Critical patent/JPS56168442A/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
    • 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
    • H04B7/0831—Compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in the diversity switching process

Abstract

PURPOSE:To eliminate a multipath noise of an FM received wave, by switching antennas after discriminating either one of the regions divided with plural prescribed values decided previously where the intensity exists for the received electric wave of an antenna. CONSTITUTION:If the received signal is under the comparing reference value er3 when an antenna A1 is carrying out broadcast transmission/reception, whether or not the received signals of other antennas A2 and A3 are over the value er3 is discriminated. If these received signals are not over the value er3, no switching command is delivered. In case the received signal of A1 is under the comparing reference value er2, the antenna A2 receiving a signal over the value er2 is selected to deliver a switching command. Furthermore, if the received signal of an antenna A3 is over the value er2 whether the received signal of A2 is over the value er2 is decided. And no switching command is delivered when the signal of A2 is over the value er2.
JP7132580A 1980-05-30 1980-05-30 Diversity receiver for car Pending JPS56168442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7132580A JPS56168442A (en) 1980-05-30 1980-05-30 Diversity receiver for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7132580A JPS56168442A (en) 1980-05-30 1980-05-30 Diversity receiver for car

Publications (1)

Publication Number Publication Date
JPS56168442A true JPS56168442A (en) 1981-12-24

Family

ID=13457288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7132580A Pending JPS56168442A (en) 1980-05-30 1980-05-30 Diversity receiver for car

Country Status (1)

Country Link
JP (1) JPS56168442A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427473A1 (en) * 1983-07-25 1985-02-14 Sony Corp., Tokio/Tokyo DIVERSITY RECEIVER
KR20040046367A (en) * 2002-11-27 2004-06-05 현대자동차주식회사 Diversity system for cellular phone in a vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427473A1 (en) * 1983-07-25 1985-02-14 Sony Corp., Tokio/Tokyo DIVERSITY RECEIVER
KR20040046367A (en) * 2002-11-27 2004-06-05 현대자동차주식회사 Diversity system for cellular phone in a vehicle

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