JPS57143944A - Channel setting structure - Google Patents

Channel setting structure

Info

Publication number
JPS57143944A
JPS57143944A JP3006081A JP3006081A JPS57143944A JP S57143944 A JPS57143944 A JP S57143944A JP 3006081 A JP3006081 A JP 3006081A JP 3006081 A JP3006081 A JP 3006081A JP S57143944 A JPS57143944 A JP S57143944A
Authority
JP
Japan
Prior art keywords
circuit
contacts
changeover switch
contact
terminals
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
JP3006081A
Other languages
Japanese (ja)
Other versions
JPS6366475B2 (en
Inventor
Hironori Noda
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3006081A priority Critical patent/JPS57143944A/en
Publication of JPS57143944A publication Critical patent/JPS57143944A/en
Publication of JPS6366475B2 publication Critical patent/JPS6366475B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection

Landscapes

  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)

Abstract

PURPOSE:To set channels very easily by connecting an (n)-number of terminals of an (n)-number of contacts for one circuit to an (n)-number of oscillating circuits and by connecting two terminals of two contacts for one circuit to optional two out of the (n)-number of contacts for one circuit. CONSTITUTION:A changeover switch A having an (n)-number of contact for one circuit and a changeover switch B having two contacts for one circuit are provided with a common terminals A0 and an (n)-number of contacts A1-An, and a common terminals B0 and two contacts B1 and B2. A rectangular-wave generating circuit generates rectangular waves S1 and S2 which never overlap with each other in terms of time, and an oscillating circuit C output a signal with a frequency f1 from a terminal (b) when a high-potential signal arrives at the terminal (a) of a gate C1g . At this time, the former changeover switch is placed at the side of the contact A2, and the latter changeover switch is placed at the side of the contact B2, generating a specific radio wave. Thus, the contact positions of both the switches are selected adequately to set a (2n)-number of channels.
JP3006081A 1981-03-02 1981-03-02 Channel setting structure Granted JPS57143944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3006081A JPS57143944A (en) 1981-03-02 1981-03-02 Channel setting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3006081A JPS57143944A (en) 1981-03-02 1981-03-02 Channel setting structure

Publications (2)

Publication Number Publication Date
JPS57143944A true JPS57143944A (en) 1982-09-06
JPS6366475B2 JPS6366475B2 (en) 1988-12-20

Family

ID=12293275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3006081A Granted JPS57143944A (en) 1981-03-02 1981-03-02 Channel setting structure

Country Status (1)

Country Link
JP (1) JPS57143944A (en)

Also Published As

Publication number Publication date
JPS6366475B2 (en) 1988-12-20

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