Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
  • H03J3/00—Continuous tuning
  • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G5/00—Tone control or bandwidth control in amplifiers
  • H03G5/16—Automatic control
  • H03G5/24—Automatic control in frequency-selective amplifiers
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
  • H03J3/00—Continuous tuning
  • H03J3/02—Details
  • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
  • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
  • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
  • H10D1/00—Resistors, capacitors or inductors
  • H10D1/60—Capacitors
  • H10D1/62—Capacitors having potential barriers
  • H10D1/64—Variable-capacitance diodes, e.g. varactors 
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
  • H10D99/00—Subject matter not provided for in other groups of this subclass

Applications Claiming Priority (1)

Publications (1)

Family

ID=7530879

Family Applications (1)

Country Status (6)

Cited By (2)

Families Citing this family (2)

• 1967
  • 1967-08-14 DE DE19671614581 patent/DE1614581A1/en active Pending
• 1968
  • 1968-07-11 NL NL6809831A patent/NL6809831A/xx unknown
  • 1968-08-08 FR FR1581807D patent/FR1581807A/fr not_active Expired
  • 1968-08-12 CH CH1210368A patent/CH483122A/en not_active IP Right Cessation
  • 1968-08-12 AT AT788068A patent/AT301712B/en not_active IP Right Cessation
  • 1968-08-13 GB GB38578/68A patent/GB1182864A/en not_active Expired

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