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JPS5696521A - Automatic adjuster for channel selection controller - Google Patents

Automatic adjuster for channel selection controller

Info

Publication number
JPS5696521A
JPS5696521A JP17287379A JP17287379A JPS5696521A JP S5696521 A JPS5696521 A JP S5696521A JP 17287379 A JP17287379 A JP 17287379A JP 17287379 A JP17287379 A JP 17287379A JP S5696521 A JPS5696521 A JP S5696521A
Authority
JP
Japan
Prior art keywords
channel selection
controller
counter
tuning voltage
data
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
JP17287379A
Other languages
Japanese (ja)
Other versions
JPS6253965B2 (en
Inventor
Youzai Nunomura
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP17287379A priority Critical patent/JPS5696521A/en
Publication of JPS5696521A publication Critical patent/JPS5696521A/en
Publication of JPS6253965B2 publication Critical patent/JPS6253965B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To obtain uniform result of adjustment and to enable the adjusting job in a short time, by automatically making the adjusting job through the use of a microcomputer. CONSTITUTION:A controller 2 outputs count-up instruction information of a tuning voltage data counter to a channel selection controller 1. Thus, a tuning voltage signal Vn is fed to a tuner 19, which outputs the intermediate frequency signal IFn accompanied with the change in the voltage Vn. This signal IFn is input to a counter 7 and the count value fn of the counter 7 is read in the controller 2. Next, the controller 2 compares the content fetched with the intermediate frequency data stored in the memory area of itself, and when both the data are in agreement, the output of the count-up instruction information to the tuning voltage data counter is stopped. Thus, the channel selection numbering data and the tuning voltage data corresponding to one of channel selection button switches are adjusted.
JP17287379A 1979-12-28 1979-12-28 Automatic adjuster for channel selection controller Granted JPS5696521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17287379A JPS5696521A (en) 1979-12-28 1979-12-28 Automatic adjuster for channel selection controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17287379A JPS5696521A (en) 1979-12-28 1979-12-28 Automatic adjuster for channel selection controller

Publications (2)

Publication Number Publication Date
JPS5696521A true JPS5696521A (en) 1981-08-04
JPS6253965B2 JPS6253965B2 (en) 1987-11-12

Family

ID=15949879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17287379A Granted JPS5696521A (en) 1979-12-28 1979-12-28 Automatic adjuster for channel selection controller

Country Status (1)

Country Link
JP (1) JPS5696521A (en)

Also Published As

Publication number Publication date
JPS6253965B2 (en) 1987-11-12

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