Oscillators – Plural oscillators – Synchronized – triggered or pulsed
Patent
1997-09-04
2000-09-05
Kinkead, Arnold
Oscillators
Plural oscillators
Synchronized, triggered or pulsed
331 46, 331 47, 331 48, 327131, 327135, 327113, H03L 7099
Patent
active
061149160
ABSTRACT:
An oscillation apparatus is provided with a signal input unit for supplying a pulse sequence consisting of pulses sequentially continuously occurred; a state quantity generating unit for generating state quantity having a value which is monotonously increased with the passage of time; a state quantity transition unit for transferring a value of state quantity in the course of generation in said state quantity generating unit to a value changed by a predetermined amount in a varying direction of the value of the state quantity with respect to a present value of the state quantity, whenever one pulse is fed from said signal input unit to said state quantity transition unit; a state quantity reset unit for comparing the present value of the state quantity generated in said state quantity generating unit with a predetermined threshold value, and resetting the present value of the state quantity generated in said state quantity generating unit to a predetermined initial value when the present value reaches the threshold value; and a signal generating unit for generating sequentially signals of which a period is defined by a time interval of timing-to-timing in which the state quantity is reset to the initial value.
REFERENCES:
patent: 4260959 (1981-04-01), Aligood
patent: 4912433 (1990-03-01), Motegi et al.
patent: 5420550 (1995-05-01), May
patent: 5473641 (1995-12-01), Brauduin
patent: 5815045 (1998-09-01), Koyanagi et al.
U.S. application No. 08/645,752, Miyuki Koyagani et al., filed May 14, 1996 .
Koyanagi Miyuki
Murakami Koichi
Fujitsu Limited
Kinkead Arnold
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