Plural Crystals In Circuit Patents (Class 331/162)
  • Oscillator having plural piezoelectric vibrators parallel connected for temperature compensation
    Patent number: 3978432
    Abstract: A piezoelectric oscillator has two or more piezoelectric vibrator units connected in parallel. At least one said unit has a frequency-temperature characteristic of third degree and the others have characteristic of second degree so as to afford compensation in oscillation frequency in a wide temperature range.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: August 31, 1976
    Inventor: Morio Onoe