Clocking device of substantially constant stability for short-te

Details Clocking device of substantially constant stability for short-te Clocking device of substantially constant stability for short-te

1988-04-18

1989-07-04

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

368200, 331 2, 331 46, 331 48, 331175, G04F 500, G04B 1712, H03L 700

Patent

active

048456926

ABSTRACT:
A clocking device of substantially constant stability for short-term and long-term measurements. This clocking device comprises first generators of a clocking signal with substantially constant stability for short-term measurements, and second generators of a clocking signal of constant stability for long-term measurements. Means for the automatic locking of one of the said first or second clocking signals to the other clocking signal are provided, and enable the automatic frequency and/or phase locking of said signals. The automatic locking means have a time constant corresponding to the transition zone between the short-term and long-term measurements. The device can be applied in the high-precision time-measuring instruments industry and to air and space navigation instruments.

REFERENCES:
patent: 3518567 (1970-06-01), Helgesson
patent: 3594656 (1971-07-01), Tsukamoto
patent: 4148184 (1979-04-01), Akahane et al.
patent: 4254492 (1981-03-01), McDermott III
patent: 4325036 (1982-04-01), Kuwabara
patent: 4583054 (1980-04-01), Basile
patent: 4598257 (1986-07-01), Southdro

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