NL188379C - Elektronisch afstemsysteem. - Google Patents

Elektronisch afstemsysteem.

Info

Publication number
NL188379C
NL188379C NLAANVRAGE7804239,A NL7804239A NL188379C NL 188379 C NL188379 C NL 188379C NL 7804239 A NL7804239 A NL 7804239A NL 188379 C NL188379 C NL 188379C
Authority
NL
Netherlands
Prior art keywords
tuning system
electronic tuning
electronic
tuning
Prior art date
Application number
NLAANVRAGE7804239,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7804239A (nl
NL188379B (nl
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of NL7804239A publication Critical patent/NL7804239A/xx
Publication of NL188379B publication Critical patent/NL188379B/xx
Application granted granted Critical
Publication of NL188379C publication Critical patent/NL188379C/xx

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
    • H03J5/0254—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
NLAANVRAGE7804239,A 1977-04-21 1978-04-20 Elektronisch afstemsysteem. NL188379C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4610877A JPS53131702A (en) 1977-04-21 1977-04-21 Electronic tuning device

Publications (3)

Publication Number Publication Date
NL7804239A NL7804239A (nl) 1978-10-24
NL188379B NL188379B (nl) 1992-01-02
NL188379C true NL188379C (nl) 1992-06-01

Family

ID=12737786

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7804239,A NL188379C (nl) 1977-04-21 1978-04-20 Elektronisch afstemsysteem.

Country Status (8)

Country Link
US (1) US4194159A (de)
JP (1) JPS53131702A (de)
AU (1) AU522303B2 (de)
CA (1) CA1106984A (de)
DE (1) DE2817404A1 (de)
FR (1) FR2388440A1 (de)
GB (1) GB1592945A (de)
NL (1) NL188379C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7920613A0 (it) * 1979-02-28 1979-02-28 Italtel Spa Disposizione circuitale per apparati ricetrasmittenti, in particolare apparati radar.
DE3032337C3 (de) * 1979-08-28 1994-08-11 Canon Kk Elektronische Einrichtung mit einer Wähleinrichtung zum Wählen eines beliebigen aus mehreren Empfangskanälen
FR2469823A1 (fr) * 1979-11-09 1981-05-22 Thomson Csf Generateur de frequences asservi en temperature et synthetiseur de frequences comportant au moins un tel generateur
FR2486332B1 (fr) * 1980-07-04 1986-05-30 Thomson Brandt Dispositif de reglage du point de fonctionnement d'un circuit electronique comportant plusieurs elements variables, notamment en television par satellite
US4481673A (en) * 1983-03-28 1984-11-06 Rca Corporation RF Prom tracking for tuners
US4525865A (en) * 1983-10-03 1985-06-25 General Electric Company Programmable radio

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715687A (en) * 1972-04-05 1973-02-06 Gte Sylvania Inc Non-linear voltage generating apparatus
IT1051262B (it) * 1975-11-11 1981-04-21 Indesit Sintonizzatore a sintesi di frequenza
US4142157A (en) * 1977-04-28 1979-02-27 Zenith Radio Corporation Tuning system equalized with the slope factor of the tuning curve
US4152654A (en) * 1977-06-17 1979-05-01 Zenith Radio Corporation Memory-saving all channel digital tuning system
US4144498A (en) * 1977-07-15 1979-03-13 Zenith Radio Corporation Television tuning method and apparatus for tuning employing slope factor derivation

Also Published As

Publication number Publication date
NL7804239A (nl) 1978-10-24
CA1106984A (en) 1981-08-11
FR2388440B1 (de) 1984-10-05
AU522303B2 (en) 1982-05-27
JPS53131702A (en) 1978-11-16
US4194159A (en) 1980-03-18
AU3518178A (en) 1979-10-25
DE2817404A1 (de) 1978-10-26
NL188379B (nl) 1992-01-02
GB1592945A (en) 1981-07-15
FR2388440A1 (fr) 1978-11-17

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V2 Lapsed due to non-payment of the last due maintenance fee for the patent application