FR2482388A1 - Selecteur individuel de programmes de television - Google Patents

Selecteur individuel de programmes de television Download PDF

Info

Publication number
FR2482388A1
FR2482388A1 FR8010277A FR8010277A FR2482388A1 FR 2482388 A1 FR2482388 A1 FR 2482388A1 FR 8010277 A FR8010277 A FR 8010277A FR 8010277 A FR8010277 A FR 8010277A FR 2482388 A1 FR2482388 A1 FR 2482388A1
Authority
FR
France
Prior art keywords
frequency
divider
hand
receiving
local oscillator
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
FR8010277A
Other languages
English (en)
French (fr)
Other versions
FR2482388B1 (enExample
Inventor
Jean Broyer
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.)
VISIODIS
Original Assignee
VISIODIS
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 VISIODIS filed Critical VISIODIS
Priority to FR8010277A priority Critical patent/FR2482388A1/fr
Publication of FR2482388A1 publication Critical patent/FR2482388A1/fr
Application granted granted Critical
Publication of FR2482388B1 publication Critical patent/FR2482388B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
FR8010277A 1980-05-08 1980-05-08 Selecteur individuel de programmes de television Granted FR2482388A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8010277A FR2482388A1 (fr) 1980-05-08 1980-05-08 Selecteur individuel de programmes de television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8010277A FR2482388A1 (fr) 1980-05-08 1980-05-08 Selecteur individuel de programmes de television

Publications (2)

Publication Number Publication Date
FR2482388A1 true FR2482388A1 (fr) 1981-11-13
FR2482388B1 FR2482388B1 (enExample) 1984-05-18

Family

ID=9241751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8010277A Granted FR2482388A1 (fr) 1980-05-08 1980-05-08 Selecteur individuel de programmes de television

Country Status (1)

Country Link
FR (1) FR2482388A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530906A1 (fr) * 1982-07-23 1984-01-27 Lignes Telegraph Telephon Dispositif de selection en frequence d'informations et reseau de teledistribution utilisant un tel dispositif

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639840A (en) * 1969-11-28 1972-02-01 Spencer Kennedy Lab Inc Multicarrier transmission system
FR2130425A1 (enExample) * 1971-03-18 1972-11-03 Oak Electro Netics
US3835384A (en) * 1972-12-20 1974-09-10 Gen Dynamics Corp Tuning system
FR2263635A1 (en) * 1974-03-05 1975-10-03 Oak Holland Bv High stability frequency converter - uses three mixing circuits and a quartz controlled pilot oscillator
FR2329112A1 (fr) * 1975-10-21 1977-05-20 Sony Corp Recepteur radiophonique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639840A (en) * 1969-11-28 1972-02-01 Spencer Kennedy Lab Inc Multicarrier transmission system
FR2130425A1 (enExample) * 1971-03-18 1972-11-03 Oak Electro Netics
US3835384A (en) * 1972-12-20 1974-09-10 Gen Dynamics Corp Tuning system
FR2263635A1 (en) * 1974-03-05 1975-10-03 Oak Holland Bv High stability frequency converter - uses three mixing circuits and a quartz controlled pilot oscillator
FR2329112A1 (fr) * 1975-10-21 1977-05-20 Sony Corp Recepteur radiophonique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *
EXBK/77 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530906A1 (fr) * 1982-07-23 1984-01-27 Lignes Telegraph Telephon Dispositif de selection en frequence d'informations et reseau de teledistribution utilisant un tel dispositif

Also Published As

Publication number Publication date
FR2482388B1 (enExample) 1984-05-18

Similar Documents

Publication Publication Date Title
US4769838A (en) Community antenna television reception controlling apparatus
KR920004105B1 (ko) 이중변환 텔레비젼 동조기 제어장치
KR910001374B1 (ko) 수상기용 튜닝 시스템
FR2463995A1 (fr) Systeme de telediffusion dans lequel une selection de programmes est effectuee au moyen de commutateurs actionnes par des abonnes
FR2511821A1 (fr) Dispositif d'accord de recepteur de television
EP0746114B1 (fr) Dispositif d'émission radio à modulation de fréquence
US6160444A (en) Demodulation of FM audio carrier
FR2481549A1 (fr) Dispositif de synthese et de demodulation combinees pour recepteurs d'ondes modulees en frequence et recepteur le comportant
JPH077386A (ja) 信号受信装置
GB2136230A (en) Electronic tracking for tuners
DE69221623T2 (de) Taktsignalgenerator für einen digitalen fernsehempfänger
US5493713A (en) Demodulation of FM audio carrier
FR2578121A1 (fr) Oscillateur local multibande
FR2464607A1 (fr) Recepteur de television
EP0800314A1 (fr) Dispositif de réception de programmes émis par un satellite ou par une station MMDS
IE74864B1 (en) On channel agile FM demodulator
FR2482388A1 (fr) Selecteur individuel de programmes de television
FR2495407A1 (fr) Synthetiseur de frequences de television pour des porteuses non standards
US2553368A (en) Automatic frequency control for television receivers
JPH0575349A (ja) 発振装置
FR2513055A1 (fr) Dispositif d'accord de recepteur de television avec un appareil de reglage electronique de frequence
FR2685583A1 (fr) Synthetiseur de frequences multibande.
FR2788639A1 (fr) Perfectionnements relatifs a la correction d'alignement de demodulateur dans des syntoniseurs
FR2515400A1 (fr) Installation de telesurveillance
EP0438934B1 (fr) Système de distribution de signaux à très haute fréquence

Legal Events

Date Code Title Description
ST Notification of lapse