Device for detecting the temperature of an oscillator crystal

Details Device for detecting the temperature of an oscillator crystal Device for detecting the temperature of an oscillator crystal

2008-01-22

2008-01-22

Pascal, Robert J. (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S066000, C331S1160FE, C331S158000, C331S17700V

Reexamination Certificate

active

07321272

ABSTRACT:
In a device for detecting the temperature of an oscillator crystal2, arranged on a carrier, in particular in a mobile radio apparatus, the detected temperature should be as exact as possible a replica of the temperature to which the oscillator crystal2is subjected. For this purpose, a temperature sensor7is arranged on the carrier1in such a way that it is subjected to the same ambient temperature as the oscillator crystal2or the oscillator-crystal housing2′. The temperature sensor7and the oscillator crystal2are located so as to be electrically parallel.

REFERENCES:
patent: 3197616 (1965-07-01), Gade et al.
patent: 3581239 (1971-05-01), Knutson
patent: 4985687 (1991-01-01), Long
patent: 6066989 (2000-05-01), Knecht et al.
patent: 6208213 (2001-03-01), Anastasyev et al.
patent: 2001/0019292 (2001-09-01), Funahara et al.
patent: 2003/0231073 (2003-12-01), Tanaka et al.

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