Oscillators – Solid state active element oscillator – Transistors
Patent
1979-11-27
1981-11-24
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Transistors
331176, H03B 504, B03B 536
Patent
active
043027318
ABSTRACT:
A control voltage for a crystal oscillation circuit is formed by adding two separately generated voltages. One of these voltages is proportionally variable with changes of temperature. The other voltage generally follows the temperature-frequency slope characteristic of the crystal unit. A use of such a control voltage eliminates the requirement for designing specific voltage generator circuits for each respective type of crystal oscillator, thereby enabling a substantial reduction in the cost of manufacture.
REFERENCES:
patent: 3454903 (1969-07-01), Page
Schodowski, "A New Approach to a High Stability Temperature Compensated Crystal Oscillatom", Proceedings-24th Annual Symposium on Frequency Control, 1970, pp. 200-208.
Buroker et al., "A Digitally Compensated TCXO", Proceeding of the 27th Annual Symposium on Frequency Control", pp. 191-198.
Fujii et al., "Improvement of Frequency Stability for TCXO", NEC Research and Development, No. 43, Oct. 1976, pp. 75-80.
Ishihara, "Temperature-Compensated Crystal Oscillator", Nippon Dempa Kogyo K.K. Technical Report, 1974, pp. 100-109.
Nippon Electric Company, Data Sheets for Analog IC .mu.PC616A, 616C, 3911C, pp. 405-408.
Nippon Electric Company, Data Sheets for Varactors, 1S2208, 2209, Silicon Epitaxial Diode, pp. 1004-1005.
Grimm Siegfried H.
Nippon Electric Co. Ltd.
LandOfFree
Temperature-compensated crystal oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature-compensated crystal oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-compensated crystal oscillator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2176945