JPS542005A - Channel selection unit - Google Patents

Channel selection unit

Info

Publication number
JPS542005A
JPS542005A JP6767877A JP6767877A JPS542005A JP S542005 A JPS542005 A JP S542005A JP 6767877 A JP6767877 A JP 6767877A JP 6767877 A JP6767877 A JP 6767877A JP S542005 A JPS542005 A JP S542005A
Authority
JP
Japan
Prior art keywords
selection unit
channel selection
band
voltage
frequency
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
JP6767877A
Other languages
Japanese (ja)
Inventor
Masayuki Matsumoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6767877A priority Critical patent/JPS542005A/en
Publication of JPS542005A publication Critical patent/JPS542005A/en
Pending 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
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To avoid malfunctions even with the different allowable ranges of the frequency contorl voltage every band, by using the voltage for band selection and by clamping it so that the frequency control voltage at the band is not in excess of its permissible range.
JP6767877A 1977-06-07 1977-06-07 Channel selection unit Pending JPS542005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6767877A JPS542005A (en) 1977-06-07 1977-06-07 Channel selection unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6767877A JPS542005A (en) 1977-06-07 1977-06-07 Channel selection unit

Publications (1)

Publication Number Publication Date
JPS542005A true JPS542005A (en) 1979-01-09

Family

ID=13351884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6767877A Pending JPS542005A (en) 1977-06-07 1977-06-07 Channel selection unit

Country Status (1)

Country Link
JP (1) JPS542005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189357U (en) * 1983-06-01 1984-12-15 日立電子株式会社 wideband radio

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141512A (en) * 1975-05-31 1976-12-06 Toshiba Corp Frequency synthesizer receiver
JPS524712A (en) * 1975-06-30 1977-01-14 Toshiba Corp Frequency synthesizer receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141512A (en) * 1975-05-31 1976-12-06 Toshiba Corp Frequency synthesizer receiver
JPS524712A (en) * 1975-06-30 1977-01-14 Toshiba Corp Frequency synthesizer receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189357U (en) * 1983-06-01 1984-12-15 日立電子株式会社 wideband radio

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