JPS56128030A - Mobile receiving antenna system - Google Patents

Mobile receiving antenna system

Info

Publication number
JPS56128030A
JPS56128030A JP3102780A JP3102780A JPS56128030A JP S56128030 A JPS56128030 A JP S56128030A JP 3102780 A JP3102780 A JP 3102780A JP 3102780 A JP3102780 A JP 3102780A JP S56128030 A JPS56128030 A JP S56128030A
Authority
JP
Japan
Prior art keywords
antenna
receiving
switching
control signal
receiving 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.)
Granted
Application number
JP3102780A
Other languages
Japanese (ja)
Other versions
JPS6221455B2 (en
Inventor
Katsuaki Kawamura
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP3102780A priority Critical patent/JPS56128030A/en
Publication of JPS56128030A publication Critical patent/JPS56128030A/en
Publication of JPS6221455B2 publication Critical patent/JPS6221455B2/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)
  • Radio Transmission System (AREA)
  • Details Of Aerials (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To always maintain a satisfactory receiving state by switching plural antennas whose directivity is different, in accordance with a receiving state. CONSTITUTION:Now, when receiving by the antenna 7, if influence of multi-path appears in the output waveform due to unsuitable directivity and a noise component appears, the output is transferred through the high-pass filter 121, the amplifier 122, the detector 123, and the bistable multivibrator circuit 125, and the switching control signal is provided to the switching means 10. The switching means 10 switches the antenna 7 to 8 in response to the switching control signal. When the receiving antenna 8 detects a multi-path noise once again, it is switched to the antenna 7 in the same way.
JP3102780A 1980-03-12 1980-03-12 Mobile receiving antenna system Granted JPS56128030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3102780A JPS56128030A (en) 1980-03-12 1980-03-12 Mobile receiving antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3102780A JPS56128030A (en) 1980-03-12 1980-03-12 Mobile receiving antenna system

Publications (2)

Publication Number Publication Date
JPS56128030A true JPS56128030A (en) 1981-10-07
JPS6221455B2 JPS6221455B2 (en) 1987-05-13

Family

ID=12320025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3102780A Granted JPS56128030A (en) 1980-03-12 1980-03-12 Mobile receiving antenna system

Country Status (1)

Country Link
JP (1) JPS56128030A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188103A (en) * 1981-05-15 1982-11-19 Asahi Glass Co Ltd Antenna for radio receiver of automobile
JPS5861509U (en) * 1981-10-21 1983-04-25 トヨタ自動車株式会社 vehicle antenna
JPS5864110U (en) * 1981-10-22 1983-04-30 旭硝子株式会社 automotive glass antenna
JPS59104647U (en) * 1982-12-28 1984-07-14 原田工業株式会社 FM wave receiving antenna device for vehicles
JPS61203702A (en) * 1985-03-07 1986-09-09 Asahi Glass Co Ltd Antenna system for automobile
JPS6226911U (en) * 1985-07-31 1987-02-18

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6800359B2 (en) 2019-03-05 2020-12-16 住友化学株式会社 Laminate

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188103A (en) * 1981-05-15 1982-11-19 Asahi Glass Co Ltd Antenna for radio receiver of automobile
JPH0220004B2 (en) * 1981-05-15 1990-05-07 Asahi Garasu Kk
JPS5861509U (en) * 1981-10-21 1983-04-25 トヨタ自動車株式会社 vehicle antenna
JPS5864110U (en) * 1981-10-22 1983-04-30 旭硝子株式会社 automotive glass antenna
JPH0132410Y2 (en) * 1981-10-22 1989-10-04
JPS59104647U (en) * 1982-12-28 1984-07-14 原田工業株式会社 FM wave receiving antenna device for vehicles
JPS61203702A (en) * 1985-03-07 1986-09-09 Asahi Glass Co Ltd Antenna system for automobile
JPS6226911U (en) * 1985-07-31 1987-02-18

Also Published As

Publication number Publication date
JPS6221455B2 (en) 1987-05-13

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