Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
  • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
  • H03J9/04—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using ultrasonic, sonic or infrasonic waves
• • 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
  • H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
  • H03J5/0227—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values using a counter
• • 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)
• Selective Calling Equipment (AREA)
• Details Of Television Systems (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5882367

Family Applications (1)

Country Status (8)

Families Citing this family (4)

Family Cites Families (1)

• 1973
  • 1973-05-28 DE DE2327148A patent/DE2327148C3/de not_active Expired
• 1974
  • 1974-05-17 GB GB2209374A patent/GB1471935A/en not_active Expired
  • 1974-05-21 AT AT419474A patent/AT348602B/de not_active IP Right Cessation
  • 1974-05-24 NL NL7406975A patent/NL7406975A/xx not_active Application Discontinuation
  • 1974-05-27 BE BE2053641A patent/BE815535R/xx active
  • 1974-05-28 ES ES426718A patent/ES426718A1/es not_active Expired
  • 1974-05-28 US US473542A patent/US3909732A/en not_active Expired - Lifetime
  • 1974-05-28 FR FR7418397A patent/FR2325260A1/fr active Granted

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