JPS558147A - Automatic frequency adjuster - Google Patents

Automatic frequency adjuster

Info

Publication number
JPS558147A
JPS558147A JP8085578A JP8085578A JPS558147A JP S558147 A JPS558147 A JP S558147A JP 8085578 A JP8085578 A JP 8085578A JP 8085578 A JP8085578 A JP 8085578A JP S558147 A JPS558147 A JP S558147A
Authority
JP
Japan
Prior art keywords
correct value
circuit
clock signal
tuning voltage
frequency
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
JP8085578A
Other languages
Japanese (ja)
Other versions
JPS59165B2 (en
Inventor
Masahiro Fujita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP53080855A priority Critical patent/JPS59165B2/en
Priority to US06/012,461 priority patent/US4262364A/en
Priority to GB7906275A priority patent/GB2015280B/en
Priority to DE2907604A priority patent/DE2907604C2/en
Publication of JPS558147A publication Critical patent/JPS558147A/en
Publication of JPS59165B2 publication Critical patent/JPS59165B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE: To secure a quick correction to the correct value in case the tuning voltage has a shift by giving an automatic switching to the correction velocity, i.e., the frequency of the clock signal to a low level after a fixed time.
CONSTITUTION: Clock switching circuit 55 switches the frequency of the clock signal given from clock signal generation circuit to a low level in a fixed time after the channel is received through operation of channel selection switch 53. As a result, the changing velocity of the tuning voltage is retarded and then changed toward the correct value. And the tuning voltage stops its changing when it passes through the correct value via the answer delay of the signal given from AFT decision circuit 44, and then changes toward the correct value again. In this case, circuit 55 is triggered by the stop signal generated from circuit 44 to switch the frequency of the clock signal to a lower level after a fixed time. After this, these action are repeated to finally secure the correction to the correct value for the tuning voltage.
COPYRIGHT: (C)1980,JPO&Japio
JP53080855A 1978-02-27 1978-07-05 automatic frequency adjustment device Expired JPS59165B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP53080855A JPS59165B2 (en) 1978-07-05 1978-07-05 automatic frequency adjustment device
US06/012,461 US4262364A (en) 1978-02-27 1979-02-15 Electronic digital channel-selecting apparatus
GB7906275A GB2015280B (en) 1978-02-27 1979-02-22 Electronic digital channel-selecting apparatus
DE2907604A DE2907604C2 (en) 1978-02-27 1979-02-27 Electronic digital channel selector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53080855A JPS59165B2 (en) 1978-07-05 1978-07-05 automatic frequency adjustment device

Publications (2)

Publication Number Publication Date
JPS558147A true JPS558147A (en) 1980-01-21
JPS59165B2 JPS59165B2 (en) 1984-01-05

Family

ID=13729951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53080855A Expired JPS59165B2 (en) 1978-02-27 1978-07-05 automatic frequency adjustment device

Country Status (1)

Country Link
JP (1) JPS59165B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401678A (en) * 1981-11-05 1983-08-30 Jordan & Ste-Michelle Cellars Ltd. Production of wine
JPS592681A (en) * 1982-06-28 1984-01-09 Sapporo Breweries Ltd Preparation of ratafia of ume (japanese apricot)
JPS6034171A (en) * 1983-08-05 1985-02-21 Ehimeken Seika Nogyo Kyodo Kumiai Rengokai Preparation of fruit juice drink containing alcohol
JPS637773A (en) * 1986-06-26 1988-01-13 Kikkoman Corp Preparation of fruit liquor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224019A (en) * 1975-08-19 1977-02-23 Meguro Denpa Sokki Kk Tuning receive system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224019A (en) * 1975-08-19 1977-02-23 Meguro Denpa Sokki Kk Tuning receive system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401678A (en) * 1981-11-05 1983-08-30 Jordan & Ste-Michelle Cellars Ltd. Production of wine
JPS592681A (en) * 1982-06-28 1984-01-09 Sapporo Breweries Ltd Preparation of ratafia of ume (japanese apricot)
JPS6034171A (en) * 1983-08-05 1985-02-21 Ehimeken Seika Nogyo Kyodo Kumiai Rengokai Preparation of fruit juice drink containing alcohol
JPS6342511B2 (en) * 1983-08-05 1988-08-24 Ehimeken Seika Nogyo Kyodo Kumiai Rengokai
JPS637773A (en) * 1986-06-26 1988-01-13 Kikkoman Corp Preparation of fruit liquor
JPH051708B2 (en) * 1986-06-26 1993-01-08 Kikkoman Corp

Also Published As

Publication number Publication date
JPS59165B2 (en) 1984-01-05

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