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
  • H03J5/0272—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 used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer

Landscapes

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

Priority Applications (2)

Applications Claiming Priority (1)

Publications (2)

Family

ID=13120647

Family Applications (1)

Country Status (2)

Families Citing this family (7)

Family Cites Families (3)

• 1974
  • 1974-05-27 JP JP1974059697U patent/JPS5439937Y2/ja not_active Expired
• 1975
  • 1975-05-23 US US05/580,359 patent/US4008436A/en not_active Expired - Lifetime

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