JPS6424502A - Electronic tuner unit - Google Patents

Electronic tuner unit

Info

Publication number
JPS6424502A
JPS6424502A JP18067887A JP18067887A JPS6424502A JP S6424502 A JPS6424502 A JP S6424502A JP 18067887 A JP18067887 A JP 18067887A JP 18067887 A JP18067887 A JP 18067887A JP S6424502 A JPS6424502 A JP S6424502A
Authority
JP
Japan
Prior art keywords
frequency
aft
lead
detuning
reception
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
JP18067887A
Other languages
Japanese (ja)
Inventor
Zenji 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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP18067887A priority Critical patent/JPS6424502A/en
Publication of JPS6424502A publication Critical patent/JPS6424502A/en
Pending legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To correct detuning in a wide frequency range speedily with high accuracy and to make an excellent reception channel selection by leading a reception channel selection frequency into a possible lead-in range by digital AFT adjustment, then correcting tuning data and leading the reception channel selection frequency into the frequency of a real turning point, and then correcting detuning by AFT adjustment. CONSTITUTION:A tuner 2 has an AFT voltage generating means 5 besides a reception processing means 3, and the AFT voltage generating means 5 discriminates the frequency of an intermediate frequency signal and generates an AFT voltage with S-curve characteristics for tuning frequency fine adjustment called an automatic frequency control voltage; and analog or digital AFT adjustment using the AFT voltage is made to lead the reception frequency into the frequency of the real tuning point, and detuning is precluded. Consequently, the frequency is lead speedily into a wide frequency range in the beginning of channel selecting operation with high lead-in accuracy.
JP18067887A 1987-07-20 1987-07-20 Electronic tuner unit Pending JPS6424502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18067887A JPS6424502A (en) 1987-07-20 1987-07-20 Electronic tuner unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18067887A JPS6424502A (en) 1987-07-20 1987-07-20 Electronic tuner unit

Publications (1)

Publication Number Publication Date
JPS6424502A true JPS6424502A (en) 1989-01-26

Family

ID=16087393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18067887A Pending JPS6424502A (en) 1987-07-20 1987-07-20 Electronic tuner unit

Country Status (1)

Country Link
JP (1) JPS6424502A (en)

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