FR2458189A1 - CHANNEL IDENTIFICATION DEVICE USEFUL IN A SCANNING TYPE TUNING SYSTEM - Google Patents

CHANNEL IDENTIFICATION DEVICE USEFUL IN A SCANNING TYPE TUNING SYSTEM

Info

Publication number
FR2458189A1
FR2458189A1 FR8011934A FR8011934A FR2458189A1 FR 2458189 A1 FR2458189 A1 FR 2458189A1 FR 8011934 A FR8011934 A FR 8011934A FR 8011934 A FR8011934 A FR 8011934A FR 2458189 A1 FR2458189 A1 FR 2458189A1
Authority
FR
France
Prior art keywords
identification device
scanning type
channel identification
tuning system
device useful
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.)
Withdrawn
Application number
FR8011934A
Other languages
French (fr)
Inventor
John Goodchilde Nori Henderson
Charles Martin Wine
Robert Joseph Maturo
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
Priority claimed from US06/043,765 external-priority patent/US4254506A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2458189A1 publication Critical patent/FR2458189A1/en
Withdrawn legal-status Critical Current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
    • 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
    • H03J5/0254—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 transfered to a D/A converter
    • H03J5/0263—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 transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0033—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for voltage synthesis with a D/A converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

L'INVENTION CONCERNE UN DISPOSITIF POUR ACCORDER UN TELEVISEUR A DIVERS CANAUX, ET IL COMPREND UN OSCILLATEUR LOCAL SENSIBLE A UNE TENSION D'ACCORD ET DONT LES FREQUENCES SONT DETERMINEES PAR DES GRANDEURS RESPECTIVES DE LA TENSION D'ACCORD, ET UN MOYEN GENERATEUR DE TENSION D'ACCORD. SELON L'INVENTION, ON PREVOIT UNE MEMOIRE 37, UN MOYEN GENERATEUR D'ADRESSES 39 POUR ADRESSER LES EMPLACEMENTS DE LA MEMOIRE, UN MOYEN DE COMPARAISON 49, 55, UN MOYEN DE COMMANDE 41, UN MOYEN DE NUMEROTATION DE CANAUX 43, 45, ET UN MOYEN D'AFFICHAGE 59. L'INVENTION S'APPLIQUE NOTAMMENT AUX TELEVISEURS EN COULEURS.THE INVENTION RELATES TO A DEVICE FOR TUNING A TELEVISION TO VARIOUS CHANNELS, AND IT INCLUDES A LOCAL OSCILLATOR SENSITIVE TO TUNING VOLTAGE AND WHOSE FREQUENCIES ARE DETERMINED BY RESPECTIVE QUANTITIES OF TUNING VOLTAGE, AND A VOLTAGE GENERATOR MEAN OKAY. ACCORDING TO THE INVENTION, A MEMORY 37, AN ADDRESS GENERATING MEANS 39 FOR ADDRESSING THE LOCATIONS OF THE MEMORY, A COMPARISON MEANS 49, 55, A CONTROL MEANS 41, A CHANNEL NUMBERING MEANS 43, 45, ARE PROVIDED. AND A DISPLAY MEANS 59. THE INVENTION APPLIES IN PARTICULAR TO COLOR TELEVISIONS.

FR8011934A 1979-05-30 1980-05-29 CHANNEL IDENTIFICATION DEVICE USEFUL IN A SCANNING TYPE TUNING SYSTEM Withdrawn FR2458189A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4376479A 1979-05-30 1979-05-30
US06/043,765 US4254506A (en) 1979-05-30 1979-05-30 Channel identification apparatus useful in a multiband sweep type tuning system

Publications (1)

Publication Number Publication Date
FR2458189A1 true FR2458189A1 (en) 1980-12-26

Family

ID=26720795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011934A Withdrawn FR2458189A1 (en) 1979-05-30 1980-05-29 CHANNEL IDENTIFICATION DEVICE USEFUL IN A SCANNING TYPE TUNING SYSTEM

Country Status (11)

Country Link
KR (1) KR830002299B1 (en)
AU (1) AU532355B2 (en)
DE (1) DE3020663A1 (en)
ES (1) ES491963A0 (en)
FI (1) FI801674A (en)
FR (1) FR2458189A1 (en)
GB (1) GB2052903B (en)
IT (1) IT1131190B (en)
NZ (1) NZ193794A (en)
PL (1) PL130381B1 (en)
SE (1) SE8003855L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291413A (en) * 1979-09-28 1981-09-22 Rca Corporation Search type tuning system with direct address channel selection apparatus
ES8406020A1 (en) * 1982-09-01 1984-06-16 Rca Corp Digital aft system
DE3342949A1 (en) * 1983-11-26 1985-06-05 Srg Schweizerische Radio- Und Fernsehgesellschaft, Bern Method for identifying the channel selection in a broadcast receiver

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556951A1 (en) * 1974-12-27 1976-07-01 Fujitsu Ten Ltd TUNING DEVICE FOR RADIO RECEIVER
FR2336829A1 (en) * 1975-12-24 1977-07-22 Sony Corp CHANNEL SELECTION DEVICE
US4041535A (en) * 1976-07-22 1977-08-09 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with signal seek control
FR2404955A1 (en) * 1977-09-28 1979-04-27 Sony Corp RECEIVER EQUIPPED WITH A DIGITAL ELECTRICAL TUNING DEVICE
FR2407629A1 (en) * 1977-10-31 1979-05-25 Rca Corp CHORD SYSTEM INCLUDING A MEMORY TO STORE CHORD INFORMATION, WITH USER COMMANDS AGENCY TO FACILITATE ITS PROGRAMMING
EP0004301A1 (en) * 1978-03-20 1979-10-03 Licentia Patent-Verwaltungs-GmbH Digital circuit for generating an arresting signal for the station scanner of a high-frequency receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1033478A (en) * 1974-07-18 1978-06-20 Sanyo Electric Co. Ltd. Automatic tuning apparatus
US4048562A (en) * 1975-05-22 1977-09-13 A. C. Nielsen Company Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques
JPS5267201A (en) * 1975-12-01 1977-06-03 Matsushita Electric Ind Co Ltd Station selecting unit
US4093922A (en) * 1977-03-17 1978-06-06 Texas Instruments Incorporated Microcomputer processing approach for a non-volatile TV station memory tuning system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556951A1 (en) * 1974-12-27 1976-07-01 Fujitsu Ten Ltd TUNING DEVICE FOR RADIO RECEIVER
FR2336829A1 (en) * 1975-12-24 1977-07-22 Sony Corp CHANNEL SELECTION DEVICE
US4041535A (en) * 1976-07-22 1977-08-09 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with signal seek control
FR2404955A1 (en) * 1977-09-28 1979-04-27 Sony Corp RECEIVER EQUIPPED WITH A DIGITAL ELECTRICAL TUNING DEVICE
FR2407629A1 (en) * 1977-10-31 1979-05-25 Rca Corp CHORD SYSTEM INCLUDING A MEMORY TO STORE CHORD INFORMATION, WITH USER COMMANDS AGENCY TO FACILITATE ITS PROGRAMMING
EP0004301A1 (en) * 1978-03-20 1979-10-03 Licentia Patent-Verwaltungs-GmbH Digital circuit for generating an arresting signal for the station scanner of a high-frequency receiver

Also Published As

Publication number Publication date
AU5872180A (en) 1980-12-04
KR830003982A (en) 1983-06-30
PL224632A1 (en) 1981-02-27
DE3020663A1 (en) 1980-12-11
ES8103524A1 (en) 1981-02-16
PL130381B1 (en) 1984-08-31
FI801674A (en) 1980-12-01
NZ193794A (en) 1984-03-30
IT8022326A0 (en) 1980-05-26
GB2052903A (en) 1981-01-28
IT1131190B (en) 1986-06-18
KR830002299B1 (en) 1983-10-21
ES491963A0 (en) 1981-02-16
GB2052903B (en) 1983-06-29
SE8003855L (en) 1980-12-01
AU532355B2 (en) 1983-09-29

Similar Documents

Publication Publication Date Title
TW329003B (en) Method of and apparatus for displaying halftone images
KR890016859A (en) Automatic Level Correction Device for Television Receiver
ES2096566T3 (en) CONTROL SIGNAL GENERATOR FOR A TELEVISION SYSTEM.
BG102000A (en) Method and device for disturbance effects from suddenly appearing of colour videosignal modifications
CA2093449A1 (en) Electronic Film Development
ATE210913T1 (en) COPY PROTECTION FOR TELEVISION SIGNALS
TW284855B (en)
DE3266906D1 (en) Method and apparatus for the reproduction of an image with a coarser resolution than during picture scanning
FR2458189A1 (en) CHANNEL IDENTIFICATION DEVICE USEFUL IN A SCANNING TYPE TUNING SYSTEM
FR2413832A1 (en) DEVICE FOR PROJECTING A CINEMATOGRAPHIC FILM ON A TELEVISION RECEIVER
JPS5767955A (en) Image recorder
MY116655A (en) Picture-display-region discriminating apparatus
JPS5320347A (en) Viewer for pseudo-stereo image
MY106641A (en) Method for positioning a light beam on a picture surface.
CA2068154A1 (en) Programmable call progress tones for a switching system
KR840001983A (en) Temperature correction method of imaging device
KR830005798A (en) Synthetic Key Signal Generator for Television Receiver
JPS6454874A (en) Picture input system
KR970025206A (en) Image quality control device for image output device
FR2701124B3 (en) Device for partial and intermittent occultation of an image by polarizing filters.
JPS5797289A (en) Drive circuit for image receiving tube
JPS55120285A (en) Index color television receiver
SU756667A1 (en) Television colour synthesizer
SU458843A1 (en) Device for displaying information
JPS5689184A (en) Signal generating device in color television system

Legal Events

Date Code Title Description
ST Notification of lapse