Classifications

• • 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
  • H03J1/041—Pointers, markers, or the like, for tuning dials; Folding dials
• • 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
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
  • H03L7/00—Automatic control of frequency or phase; Synchronisation
  • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
  • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
  • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
  • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

Landscapes

• Engineering & Computer Science (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Superheterodyne Receivers (AREA)
• Channel Selection Circuits, Automatic Tuning Circuits (AREA)
• Circuits Of Receivers In General (AREA)
• Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11590704

Family Applications (1)

Country Status (8)

Families Citing this family (12)

Family Cites Families (3)

• 1973
  • 1973-12-27 JP JP1974004684U patent/JPS5092603U/ja active Pending
• 1974
  • 1974-12-20 DE DE2460536A patent/DE2460536C2/de not_active Expired
  • 1974-12-20 US US05/534,796 patent/US3962641A/en not_active Expired - Lifetime
  • 1974-12-23 GB GB55561/74A patent/GB1482769A/en not_active Expired
  • 1974-12-24 NL NL7416884A patent/NL7416884A/xx not_active Application Discontinuation
  • 1974-12-24 CA CA216,788A patent/CA1040766A/en not_active Expired
  • 1974-12-27 FR FR7443052A patent/FR2256603B1/fr not_active Expired
  • 1974-12-27 IT IT7431083A patent/IT1028095B/it active

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