JPS5592045A - Antenna switching circuit of car radio and so on - Google Patents

Antenna switching circuit of car radio and so on

Info

Publication number
JPS5592045A
JPS5592045A JP16283878A JP16283878A JPS5592045A JP S5592045 A JPS5592045 A JP S5592045A JP 16283878 A JP16283878 A JP 16283878A JP 16283878 A JP16283878 A JP 16283878A JP S5592045 A JPS5592045 A JP S5592045A
Authority
JP
Japan
Prior art keywords
switching
antenna
circuit
terminal
distance
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
JP16283878A
Other languages
Japanese (ja)
Other versions
JPS5951791B2 (en
Inventor
Sunao Murakami
Noboru Hayakawa
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.)
Marantz Japan Inc
Original Assignee
Marantz Japan Inc
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 Marantz Japan Inc filed Critical Marantz Japan Inc
Priority to JP16283878A priority Critical patent/JPS5951791B2/en
Publication of JPS5592045A publication Critical patent/JPS5592045A/en
Publication of JPS5951791B2 publication Critical patent/JPS5951791B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Abstract

PURPOSE:To make it possible to perform receiving switching well with a simple constitution by making a distance switching operation possible at an FM receiving time as well as an AM receiving time and by attenuating properly the other radio wave for a weak electric field intensity. CONSTITUTION:AM.FM radio waves from antenna terminal AT are supplied to AM.FM tuner 2 through antenna switching circuit 1. Meanwhile, antenna switching relay driving circuit 3 has AM.FM selector switch S0 and distance selector switch S does not attenuate the FM wave from terminal AT in respect to the FM band and attenuates properly the AM wave from terminal AT in respect to the AM band. Here, the switching relay contact of circuit 1 is switched to constitute a reverse circuit, and switches S0 and S are interlocked with each other to perform FM. AM switching and distance switching of the antenna overall, so that receiving switching can be performed well with a simple constitution.
JP16283878A 1978-12-29 1978-12-29 Antenna switching circuit for car radios, etc. Expired JPS5951791B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16283878A JPS5951791B2 (en) 1978-12-29 1978-12-29 Antenna switching circuit for car radios, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16283878A JPS5951791B2 (en) 1978-12-29 1978-12-29 Antenna switching circuit for car radios, etc.

Publications (2)

Publication Number Publication Date
JPS5592045A true JPS5592045A (en) 1980-07-12
JPS5951791B2 JPS5951791B2 (en) 1984-12-15

Family

ID=15762197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16283878A Expired JPS5951791B2 (en) 1978-12-29 1978-12-29 Antenna switching circuit for car radios, etc.

Country Status (1)

Country Link
JP (1) JPS5951791B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9624137B2 (en) 2011-11-30 2017-04-18 Component Re-Engineering Company, Inc. Low temperature method for hermetically joining non-diffusing ceramic materials
US8932690B2 (en) 2011-11-30 2015-01-13 Component Re-Engineering Company, Inc. Plate and shaft device

Also Published As

Publication number Publication date
JPS5951791B2 (en) 1984-12-15

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