JPS53145511A - Digital tuning control circuit - Google Patents

Digital tuning control circuit

Info

Publication number
JPS53145511A
JPS53145511A JP6150877A JP6150877A JPS53145511A JP S53145511 A JPS53145511 A JP S53145511A JP 6150877 A JP6150877 A JP 6150877A JP 6150877 A JP6150877 A JP 6150877A JP S53145511 A JPS53145511 A JP S53145511A
Authority
JP
Japan
Prior art keywords
control circuit
tuning control
digital tuning
pll
digital
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
JP6150877A
Other languages
Japanese (ja)
Inventor
Kazuo Fujimoto
Tatsuo Kawasaki
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 JP6150877A priority Critical patent/JPS53145511A/en
Publication of JPS53145511A publication Critical patent/JPS53145511A/en
Pending 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory

Abstract

PURPOSE:to reduce th number of the memory as well as to secure a higher-degree control function for a TV picture receiver by obtaining the code supplied to PLL from the input channel value through the logical operation.
JP6150877A 1977-05-25 1977-05-25 Digital tuning control circuit Pending JPS53145511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6150877A JPS53145511A (en) 1977-05-25 1977-05-25 Digital tuning control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6150877A JPS53145511A (en) 1977-05-25 1977-05-25 Digital tuning control circuit

Publications (1)

Publication Number Publication Date
JPS53145511A true JPS53145511A (en) 1978-12-18

Family

ID=13173095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6150877A Pending JPS53145511A (en) 1977-05-25 1977-05-25 Digital tuning control circuit

Country Status (1)

Country Link
JP (1) JPS53145511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724114A (en) * 1980-07-21 1982-02-08 Mitsubishi Electric Corp Channel selector
JPS6175639U (en) * 1984-10-19 1986-05-21
JPS6190328U (en) * 1984-11-16 1986-06-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724114A (en) * 1980-07-21 1982-02-08 Mitsubishi Electric Corp Channel selector
JPS6175639U (en) * 1984-10-19 1986-05-21
JPS6190328U (en) * 1984-11-16 1986-06-12

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