HK33386A - Tuning apparatus permitting reception of rf, e.g. television, carriers at nonstandard frequency - Google Patents

Tuning apparatus permitting reception of rf, e.g. television, carriers at nonstandard frequency

Info

Publication number
HK33386A
HK33386A HK333/86A HK33386A HK33386A HK 33386 A HK33386 A HK 33386A HK 333/86 A HK333/86 A HK 333/86A HK 33386 A HK33386 A HK 33386A HK 33386 A HK33386 A HK 33386A
Authority
HK
Hong Kong
Prior art keywords
signal
frequency
local oscillator
rti
offset
Prior art date
Application number
HK333/86A
Other languages
English (en)
Original Assignee
Rca Licensing Corporation
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
Priority claimed from US05/688,521 external-priority patent/US4031549A/en
Priority claimed from US05/688,588 external-priority patent/US4109283A/en
Application filed by Rca Licensing Corporation filed Critical Rca Licensing Corporation
Publication of HK33386A publication Critical patent/HK33386A/en

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
    • 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
    • H03J7/06—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 using counters or frequency dividers
    • H03J7/065—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 using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)
HK333/86A 1976-05-21 1986-05-15 Tuning apparatus permitting reception of rf, e.g. television, carriers at nonstandard frequency HK33386A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/688,521 US4031549A (en) 1976-05-21 1976-05-21 Television tuning system with provisions for receiving RF carrier at nonstandard frequency
US05/688,588 US4109283A (en) 1976-05-21 1976-05-21 Frequency counter for a television tuning system

Publications (1)

Publication Number Publication Date
HK33386A true HK33386A (en) 1986-05-23

Family

ID=27104242

Family Applications (1)

Application Number Title Priority Date Filing Date
HK333/86A HK33386A (en) 1976-05-21 1986-05-15 Tuning apparatus permitting reception of rf, e.g. television, carriers at nonstandard frequency

Country Status (10)

Country Link
JP (1) JPS5928297B2 (enExample)
AT (1) AT381819B (enExample)
AU (1) AU514310B2 (enExample)
DE (1) DE2722659C2 (enExample)
FI (1) FI65516C (enExample)
FR (1) FR2361789A1 (enExample)
GB (1) GB1581933A (enExample)
HK (1) HK33386A (enExample)
IT (1) IT1111661B (enExample)
SE (1) SE415720B (enExample)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917254A (enExample) * 1972-06-05 1974-02-15
US3949158A (en) * 1974-12-31 1976-04-06 Quasar Electronics Corporation Wide band aft circuit for television receiver
IT1073074B (it) * 1975-11-14 1985-04-13 Rca Corp Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata
US4078212A (en) * 1976-02-27 1978-03-07 Rca Corporation Dual mode frequency synthesizer for a television tuning apparatus

Also Published As

Publication number Publication date
AT381819B (de) 1986-12-10
SE7705644L (sv) 1977-11-22
DE2722659C2 (de) 1985-05-30
AU2476177A (en) 1978-11-09
FR2361789B1 (enExample) 1982-11-19
JPS5928297B2 (ja) 1984-07-12
DE2722659A1 (de) 1977-11-24
FR2361789A1 (fr) 1978-03-10
FI65516C (fi) 1984-05-10
FI65516B (fi) 1984-01-31
FI771529A7 (enExample) 1977-11-22
ATA364577A (de) 1986-04-15
GB1581933A (en) 1980-12-31
IT1111661B (it) 1986-01-13
AU514310B2 (en) 1981-02-05
JPS5310920A (en) 1978-01-31
SE415720B (sv) 1980-10-20

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Legal Events

Date Code Title Description
NR Patent deemed never to have been added to the register under section 13(7) of patents (transitional arrangements) rules