Oscillation apparatus

Details Oscillation apparatus Oscillation apparatus

1996-05-14

1998-09-29

Tran, Toan

Oscillators

Relaxation oscillators

331111, H03L 708

Patent

active

058150455

ABSTRACT:
An oscillation apparatus is provided with a present value generating unit for generating a present value which is monotonously increased or decreased with the passage of time; a threshold value generating unit for generating a threshold of which a value is periodically varied; a comparing and detecting unit for comparing the present value generated in said present value generating unit with the threshold generated in said threshold value generating unit; a present value reset unit for resetting the present value to a predetermined initial value whenever said comparing and detecting unit detects a fact that the present value reached the threshold; 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 said comparing and detecting detects a fact that the present value reached the threshold.

REFERENCES:
patent: 4260959 (1981-04-01), Allgood
patent: 4912433 (1990-03-01), Motegi et al.
patent: 5420550 (1995-05-01), May
patent: 5473641 (1995-12-01), Bauduin

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