JPS54157015A - Electronic channel selection unit - Google Patents

Electronic channel selection unit

Info

Publication number
JPS54157015A
JPS54157015A JP6537078A JP6537078A JPS54157015A JP S54157015 A JPS54157015 A JP S54157015A JP 6537078 A JP6537078 A JP 6537078A JP 6537078 A JP6537078 A JP 6537078A JP S54157015 A JPS54157015 A JP S54157015A
Authority
JP
Japan
Prior art keywords
output
tuning
counter
voltage
channel
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
JP6537078A
Other languages
Japanese (ja)
Other versions
JPS6015166B2 (en
Inventor
Hisao Mogi
Yoshio Ishigaki
Hisao Okada
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP6537078A priority Critical patent/JPS6015166B2/en
Publication of JPS54157015A publication Critical patent/JPS54157015A/en
Publication of JPS6015166B2 publication Critical patent/JPS6015166B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To facilitate a fine tuning by simplifying the preset operation without a variable resistor to generate a tuning voltage and a programmable variable frequency divider in the electronic channel selection unit used in a receiving unit. CONSTITUTION:VHF and UHF tuner 12 having a tuning variable reactance element, reference oscillator 16 which generates signals of a prescribed frequency, and gate circuit 15 which gates the local oscillation output of tuner 12 on the basis of the output of oscillator 16 are provided, and further, channel memory 20 which reads out a channel frequency code by the designation of channel designation switch 1 is provided. Comparison counter 19 which compares the frequency code read from memory 20 and the output of gate circuit 15 with each other is provided, and further, station counter 6 which changes a voltage code on a basis of the output of counter 19 or the output of fine-tuning pulse generator 9, and the voltage code from counter 6 is converted to a tuning voltage of tuner 12 by D/A converter 11 and is supplied to the reactance element.
JP6537078A 1978-05-31 1978-05-31 Electronic channel selection device Expired JPS6015166B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6537078A JPS6015166B2 (en) 1978-05-31 1978-05-31 Electronic channel selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6537078A JPS6015166B2 (en) 1978-05-31 1978-05-31 Electronic channel selection device

Publications (2)

Publication Number Publication Date
JPS54157015A true JPS54157015A (en) 1979-12-11
JPS6015166B2 JPS6015166B2 (en) 1985-04-18

Family

ID=13285002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6537078A Expired JPS6015166B2 (en) 1978-05-31 1978-05-31 Electronic channel selection device

Country Status (1)

Country Link
JP (1) JPS6015166B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60141465A (en) * 1983-12-29 1985-07-26 Sharp Corp Tubular grinding machine
JPH02107017A (en) * 1988-10-15 1990-04-19 Matsushita Electric Ind Co Ltd Fm demodulator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101466976B1 (en) * 2014-08-26 2014-12-03 주식회사 로지텍 Velour needle punching non-woven structure for manufacturing a liner and Liner using the same and its method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60141465A (en) * 1983-12-29 1985-07-26 Sharp Corp Tubular grinding machine
JPH0457465B2 (en) * 1983-12-29 1992-09-11 Sharp Kk
JPH02107017A (en) * 1988-10-15 1990-04-19 Matsushita Electric Ind Co Ltd Fm demodulator

Also Published As

Publication number Publication date
JPS6015166B2 (en) 1985-04-18

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