JPS56122533A - Frequency modulation receiver - Google Patents

Frequency modulation receiver

Info

Publication number
JPS56122533A
JPS56122533A JP2628180A JP2628180A JPS56122533A JP S56122533 A JPS56122533 A JP S56122533A JP 2628180 A JP2628180 A JP 2628180A JP 2628180 A JP2628180 A JP 2628180A JP S56122533 A JPS56122533 A JP S56122533A
Authority
JP
Japan
Prior art keywords
noise
antenna
switching
pulsative
output
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
JP2628180A
Other languages
Japanese (ja)
Inventor
Shigeki Takeda
Junichi Shibata
Masashi Shimakata
Yasuhiro Oshime
Shintaro Gomi
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 JP2628180A priority Critical patent/JPS56122533A/en
Publication of JPS56122533A publication Critical patent/JPS56122533A/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)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To get rid of a noise of the audio component based on switching on the antenna, which has been contained in the detection output, by providing a noise removing circuit for removing a pulsative noise, behind the FM detector. CONSTITUTION:When receiving by the antenna 7, if the influence of a multipath appears in the output waveform A, and a noise component appears in the detection output C, the multipath detection circuit 9 provides a switching control signal F to the switching means 10. The means 10 switches the antenna from 7 to 8 in response to this switching control signal. At the time of switching operation of this antenna, in addition to a mulipath noise, a pulsative noise of the audio component is superposed in the detection output C due to influnece of the transient phenomenon of a receiving signal, but this pulsative noise is removed by the noise removing circuit 5 and it is not output.
JP2628180A 1980-03-03 1980-03-03 Frequency modulation receiver Pending JPS56122533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2628180A JPS56122533A (en) 1980-03-03 1980-03-03 Frequency modulation receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2628180A JPS56122533A (en) 1980-03-03 1980-03-03 Frequency modulation receiver

Publications (1)

Publication Number Publication Date
JPS56122533A true JPS56122533A (en) 1981-09-26

Family

ID=12188897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2628180A Pending JPS56122533A (en) 1980-03-03 1980-03-03 Frequency modulation receiver

Country Status (1)

Country Link
JP (1) JPS56122533A (en)

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