3428939

Information

• Patent Grant
• 3428939

• References
• Source

• Patent Number

  3,428,939

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1969
  56 years ago

• CPC

  • H03K4/56 - using a semiconductor device with negative feedback through a capacitor
  • G01S1/02 - using radio waves
  • G01S7/6209 - providing display of one measured variable
  • H03K4/12 - in which a sawtooth voltage is produced across a capacitor
  • H03K4/501 - the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor
  • H03M1/0619 - by dividing out the errors
  • H03M1/74 - Simultaneous conversion
  • Y10S367/902 - Speed of sound compensation

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 341 - Coded data generation or conversion