DE2722659C2 - Anordnung zum Abstimmen eines Empfängers auf genormte oder davon abweichende Trägerfrequenzen - Google Patents

Anordnung zum Abstimmen eines Empfängers auf genormte oder davon abweichende Trägerfrequenzen

Info

Publication number
DE2722659C2
DE2722659C2 DE2722659A DE2722659A DE2722659C2 DE 2722659 C2 DE2722659 C2 DE 2722659C2 DE 2722659 A DE2722659 A DE 2722659A DE 2722659 A DE2722659 A DE 2722659A DE 2722659 C2 DE2722659 C2 DE 2722659C2
Authority
DE
Germany
Prior art keywords
signal
frequency
deviation
local oscillator
phase
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.)
Expired
Application number
DE2722659A
Other languages
German (de)
English (en)
Other versions
DE2722659A1 (de
Inventor
John Goodchilde Norie Princeton N.J. Henderson
Robert Morgan Cranbury N.J. Rast
Charles Martin Wine
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.)
RCA Licensing Corp
Original Assignee
RCA Corp
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 Corp filed Critical RCA Corp
Publication of DE2722659A1 publication Critical patent/DE2722659A1/de
Application granted granted Critical
Publication of DE2722659C2 publication Critical patent/DE2722659C2/de
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00Discontinuous 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
    • H03J5/02Discontinuous 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
    • H03J5/0245Discontinuous 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
    • H03J5/0272Discontinuous 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02Automatic frequency control
    • H03J7/04Automatic 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
    • H03J7/06Automatic 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
    • H03J7/065Automatic 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)
DE2722659A 1976-05-21 1977-05-18 Anordnung zum Abstimmen eines Empfängers auf genormte oder davon abweichende Trägerfrequenzen Expired DE2722659C2 (de)

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 (2)

Publication Number Publication Date
DE2722659A1 DE2722659A1 (de) 1977-11-24
DE2722659C2 true DE2722659C2 (de) 1985-05-30

Family

ID=27104242

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2722659A Expired DE2722659C2 (de) 1976-05-21 1977-05-18 Anordnung zum Abstimmen eines Empfängers auf genormte oder davon abweichende Trägerfrequenzen

Country Status (10)

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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917254A (enrdf_load_stackoverflow) * 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
DE2722659A1 (de) 1977-11-24
FR2361789A1 (fr) 1978-03-10
FR2361789B1 (enrdf_load_stackoverflow) 1982-11-19
FI65516B (fi) 1984-01-31
GB1581933A (en) 1980-12-31
FI771529A7 (enrdf_load_stackoverflow) 1977-11-22
JPS5310920A (en) 1978-01-31
AT381819B (de) 1986-12-10
FI65516C (fi) 1984-05-10
HK33386A (en) 1986-05-23
IT1111661B (it) 1986-01-13
SE7705644L (sv) 1977-11-22
JPS5928297B2 (ja) 1984-07-12
SE415720B (sv) 1980-10-20
AU2476177A (en) 1978-11-09
ATA364577A (de) 1986-04-15
AU514310B2 (en) 1981-02-05

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: RCA LICENSING CORP., PRINCETON, N.J., US