JPS49135508A - - Google Patents

Info

Publication number
JPS49135508A
JPS49135508A JP48125881A JP12588173A JPS49135508A JP S49135508 A JPS49135508 A JP S49135508A JP 48125881 A JP48125881 A JP 48125881A JP 12588173 A JP12588173 A JP 12588173A JP S49135508 A JPS49135508 A JP S49135508A
Authority
JP
Japan
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
JP48125881A
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 filed Critical
Publication of JPS49135508A publication Critical patent/JPS49135508A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
JP48125881A 1972-11-08 1973-11-08 Pending JPS49135508A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00304673A US3808541A (en) 1972-11-08 1972-11-08 Automatic fine tuning system and method for use in super-heterodyne receivers

Publications (1)

Publication Number Publication Date
JPS49135508A true JPS49135508A (ja) 1974-12-27

Family

ID=23177486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48125881A Pending JPS49135508A (ja) 1972-11-08 1973-11-08

Country Status (3)

Country Link
US (1) US3808541A (ja)
JP (1) JPS49135508A (ja)
CA (1) CA1010117A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911219A (en) * 1974-03-11 1975-10-07 Bell Telephone Labor Inc Automatic frequency control for differentially coherent phase detection
US4091410A (en) * 1976-11-08 1978-05-23 Zenith Radio Corporation Frequency and phase lock loop synchronous detecting system having a pair of phase lock conditions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702852A (en) * 1953-05-29 1955-02-22 Collins Radio Co Automatic frequency control circuit
US3160815A (en) * 1962-09-14 1964-12-08 Collins Radio Co Coherent frequency difference detector having direct-current output independent of modulation
US3710261A (en) * 1970-12-24 1973-01-09 G Low Data-aided carrier tracking loops

Also Published As

Publication number Publication date
CA1010117A (en) 1977-05-10
US3808541A (en) 1974-04-30

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