Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Patent
1992-11-20
1994-04-19
Pascal, Robert J.
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
331107R, 331DIG3, 307511, 307231, H03B 512
Patent
active
053049586
ABSTRACT:
A gain stage for providing an automatic phase shift is provided. In particular, the gain stage detects whether an oscillation signal appears at its inputs. If an oscillation signal is not detected, then the gain stage inverts output signals occurring at outputs of a first amplifier before being respectively applied to inputs of a second amplifier. This has the overall effect of implementing a 180.degree. phase shift of a signal appearing at the outputs of the gain stage with respect to a signal appearing at the inputs of the gain stage.
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"Missing-Pulse Detector Handles Variable Frequencies", by Joe Lyle and Jerry Titsworth, Electronics Apr. 12, 1979 p. 131.
"Voltage Controlled Surface Wave Resonator Oscillators", by Lawrence H. Ragan Texas Inst. Inc., 1976 Ultrasonics Symposium Proc., IEEE Cat. #76.
Esgar Dwight D.
Pham Phuc C.
Sofianos Paul B.
Botsch Sr. Bradley J.
Kinkead Arnold
Motorola Inc.
Pascal Robert J.
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