Method of overtone selection and level control in an...

Details Method of overtone selection and level control in an... Method of overtone selection and level control in an...

2005-08-23

2005-08-23

Mis, David (Department: 2817)

Oscillators

Combined with particular output coupling network

Space discharge or unilaterally conductive device in output...

C331S115000, C331S1160FE, C331S132000, C331S154000, C331S158000, C331S183000

Reexamination Certificate

active

06933793

ABSTRACT:
A stable high-frequency clock pulse apparatus and method including frequency source, overtone crystal unit coupled with a negative resistance oscillator, a bandpass overtone filter and a drive level control is provided. The apparatus can include a frequency multiplier. The frequency source can be a micromechanical resonator.

REFERENCES:
patent: 5444422 (1995-08-01), Mycynek
patent: 6081164 (2000-06-01), Shigemori et al.
patent: 6215370 (2001-04-01), Hasegawa et al.
International Search Report for International Application No. PCT/US02/18252, filed Jun. 5, 2002, mailed Jan. 2, 2003 (3 pgs.).
Long, “Frequency Correlation Of Quartz Crystal Oscillators”, RF Expo East, 1990, http://www/corningfrequency.com/piezo/papers/fcqc.html, printed Jun. 12, 2001 (14 pgs.).

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