Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
  • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
  • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
  • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
  • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
  • G01S7/04—Display arrangements
  • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
  • G01S7/10—Providing two-dimensional [2D] co-ordinated display of distance and direction
  • G01S7/12—Plan-position indicators, i.e. P.P.I.
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06G—ANALOGUE COMPUTERS
  • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
  • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
  • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
  • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
  • H03B2200/006—Functional aspects of oscillators
  • H03B2200/0078—Functional aspects of oscillators generating or using signals in quadrature

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Mathematical Physics (AREA)
• Radar, Positioning & Navigation (AREA)
• Remote Sensing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Theoretical Computer Science (AREA)
• Algebra (AREA)
• Mathematical Analysis (AREA)
• Mathematical Optimization (AREA)
• Pure & Applied Mathematics (AREA)
• Software Systems (AREA)
• Computer Hardware Design (AREA)
• Radar Systems Or Details Thereof (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10331449

Family Applications (1)

Country Status (5)

• 0
  • NL NL296906D patent/NL296906A/xx unknown
• 1962
  • 1962-08-21 GB GB3199562A patent/GB993175A/en not_active Expired
• 1963
  • 1963-07-10 SE SE7687/63A patent/SE319812B/xx unknown
  • 1963-08-21 DE DE1963M0057907 patent/DE1303123C2/de not_active Expired
  • 1963-08-21 FR FR945269A patent/FR1367248A/fr not_active Expired

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