Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
  • H03J3/00—Continuous tuning
  • H03J3/02—Details
  • H03J3/12—Electrically-operated arrangements for indicating correct tuning
  • H03J3/14—Visual indication, e.g. magic eye
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R13/00—Arrangements for displaying electric variables or waveforms
  • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
  • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
  • G01R13/408—Two or three dimensional representation of measured values
• • 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
  • H03J1/02—Indicating arrangements
  • H03J1/04—Indicating arrangements with optical indicating means
  • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
  • H03J1/047—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Control Of Indicators Other Than Cathode Ray Tubes (AREA)
• Tests Of Electronic Circuits (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10999306

Family Applications (1)

Country Status (5)

Families Citing this family (3)

• 1973
  • 1973-08-03 HU HUME1648A patent/HU167152B/hu unknown
• 1974
  • 1974-07-29 NL NL7410202A patent/NL7410202A/xx not_active Application Discontinuation
  • 1974-07-30 SE SE7409816A patent/SE401039B/xx unknown
  • 1974-07-30 DE DE2436656A patent/DE2436656C3/de not_active Expired
  • 1974-08-02 SU SU742050088A patent/SU586855A3/ru active

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