ES453293A1 - Perfeccionamientos en sintonizadores de canales para recep- tores de television. - Google Patents

Perfeccionamientos en sintonizadores de canales para recep- tores de television.

Info

Publication number
ES453293A1
ES453293A1 ES453293A ES453293A ES453293A1 ES 453293 A1 ES453293 A1 ES 453293A1 ES 453293 A ES453293 A ES 453293A ES 453293 A ES453293 A ES 453293A ES 453293 A1 ES453293 A1 ES 453293A1
Authority
ES
Spain
Prior art keywords
frequency
local oscillator
oscillator signal
television receivers
signal
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
ES453293A
Other languages
English (en)
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 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
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES453293A1 publication Critical patent/ES453293A1/es
Expired legal-status Critical Current

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
    • H03J5/0281—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 the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
ES453293A 1975-11-14 1976-11-12 Perfeccionamientos en sintonizadores de canales para recep- tores de television. Expired ES453293A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63206075A 1975-11-14 1975-11-14

Publications (1)

Publication Number Publication Date
ES453293A1 true ES453293A1 (es) 1977-11-16

Family

ID=24533910

Family Applications (1)

Application Number Title Priority Date Filing Date
ES453293A Expired ES453293A1 (es) 1975-11-14 1976-11-12 Perfeccionamientos en sintonizadores de canales para recep- tores de television.

Country Status (15)

Country Link
JP (2) JPS5828932B2 (es)
AT (1) AT377878B (es)
AU (1) AU512493B2 (es)
BE (1) BE848283A (es)
CA (1) CA1175586A (es)
DE (1) DE2651297C3 (es)
ES (1) ES453293A1 (es)
FI (1) FI66269C (es)
FR (2) FR2331917A1 (es)
GB (1) GB1561544A (es)
IT (2) IT1073074B (es)
MX (1) MX3472E (es)
NL (1) NL188065C (es)
PL (1) PL114951B1 (es)
SE (1) SE430200B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU514310B2 (en) * 1976-05-21 1981-02-05 Rca Corp. Tuner with pll
GB1564375A (en) * 1977-09-07 1980-04-10 Marconi Co Ltd Frequency generators
JPS598966B2 (ja) * 1979-04-10 1984-02-28 株式会社東芝 テレビジヨン受像機の制御装置
JPS5657324A (en) * 1979-10-16 1981-05-19 Sanyo Electric Co Ltd Digital electronic tuning system
JPS56162527A (en) * 1980-05-20 1981-12-14 Toshiba Corp Controller of television receiver
US4476580A (en) * 1980-06-17 1984-10-09 Sanyo Electric Co., Ltd. Automatic continuous tuning control apparatus for a receiver
US4521918A (en) * 1980-11-10 1985-06-04 General Electric Company Battery saving frequency synthesizer arrangement
ES525161A0 (es) * 1982-09-01 1984-06-16 Rca Corp "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television"
US4503465A (en) * 1982-11-24 1985-03-05 Rca Corporation Analog signal comparator using digital circuitry
EP0302290B1 (en) * 1987-08-03 1994-12-14 Motorola Inc. Automatic frequency control system
JP5540089B2 (ja) 2009-06-30 2014-07-02 トムソン ライセンシング デジタル信号の再送信方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL166828C (nl) * 1971-05-08 1981-09-15 Matsushita Electric Ind Co Ltd Automatische kanaalkies-inrichting.
JPS4943084Y2 (es) * 1971-06-29 1974-11-26
JPS4841361A (es) * 1971-09-28 1973-06-16
JPS555729B2 (es) * 1971-11-29 1980-02-08
DE2211664A1 (de) * 1972-03-10 1973-09-20 Loewe Opta Gmbh Abstimmeinheit fuer hochfrequenzempfangsgeraete
JPS5228321B2 (es) * 1972-03-15 1977-07-26
US3803494A (en) * 1972-04-07 1974-04-09 Bendix Corp Pulse tuning control system for radio receivers
DE2217002B2 (de) * 1972-04-08 1976-04-15 Blaupunkt-Werke Gmbh, 3200 Hildesheim Empfaenger fuer einseitenbandmodulierte sender in einem festen traegerfrequenzraster
DE2333851A1 (de) * 1973-07-03 1975-01-23 Standard Elektrik Lorenz Ag Verfahren und anordnungen zur selbsttaetigen nachregelung der mit einer abstimmanordnunggeingestellten oszillatorfrequenz eines ueberlagerungsempfangsteils einer bild und/oder tonwiedergabeanordnung
DE2333852A1 (de) * 1973-07-03 1975-01-23 Standard Elektrik Lorenz Ag Ueberlagerungsempfaenger mit einer digital einstellbaren abstimmanordnung
IT1036497B (it) * 1975-07-11 1979-10-30 Indesit Circuito selezionatore di emittente in un ricevitore di segnali

Also Published As

Publication number Publication date
AT377878B (de) 1985-05-10
FI66269C (fi) 1984-09-10
PL114951B1 (en) 1981-03-31
FI66269B (fi) 1984-05-31
FR2331917B1 (es) 1982-07-09
JPS5828932B2 (ja) 1983-06-18
GB1561544A (en) 1980-02-20
JPS5261904A (en) 1977-05-21
JPS5696523A (en) 1981-08-04
NL7612666A (nl) 1977-05-17
BE848283A (fr) 1977-03-01
NL188065C (nl) 1992-03-16
NL188065B (nl) 1991-10-16
IT1100758B (it) 1985-09-28
ATA848976A (de) 1984-09-15
FR2331917A1 (fr) 1977-06-10
MX3472E (es) 1980-12-09
DE2651297B2 (de) 1979-03-29
JPS5829655B2 (ja) 1983-06-24
DE2651297C3 (de) 1987-04-16
DE2651297A1 (de) 1977-05-26
FR2495407B1 (fr) 1986-01-17
SE430200B (sv) 1983-10-24
IT1073074B (it) 1985-04-13
SE7902170L (sv) 1979-03-09
FR2495407A1 (fr) 1982-06-04
CA1175586A (en) 1984-10-02
FI763252A (es) 1977-05-15
AU1958176A (en) 1978-05-18
IT7830200A0 (it) 1978-11-24
AU512493B2 (en) 1980-10-16

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