Oscillators – Automatic frequency stabilization using a phase or frequency... – Afc with logic elements
Patent
1994-04-28
1996-08-27
Lee, Benny T.
Oscillators
Automatic frequency stabilization using a phase or frequency...
Afc with logic elements
331 25, 331 17, 331DIG2, 327141, 327158, 327276, 375376, H03L 706
Patent
active
055505147
ABSTRACT:
An unlimited number of steps or increments of given size are obtained in a delay line for phase alignment of, for instance, the signal from a crystal oscillator by momentarily switching between two parallel delay lines. One delay line operates as an active or enabled delay line while the other line is disabled or inactive. It is ensured at the same time that the inactive delay line produces a signal which has the same relative phase as the active delay line, this absolute phase differing by N.times.2.pi., where N is a positive or a negative integer other than zero. The active delay line operate constantly within its regulation range and the phase of the local oscillator can be kept continuously locked to the phase of the reference signal.
REFERENCES:
patent: 4119796 (1978-10-01), Jones
patent: 4677648 (1987-06-01), Zurfluh
patent: 4795985 (1989-01-01), Gailbreath, Jr.
patent: 4796095 (1989-01-01), Shimada
patent: 4859954 (1989-08-01), Yoshimura
patent: 4868514 (1989-09-01), Azevedo et al.
patent: 4975593 (1990-12-01), Kurakazu et al.
patent: 5012198 (1991-04-01), Okada et al.
patent: 5036297 (1991-07-01), Nakamura
patent: 5079519 (1992-01-01), Ashby et al.
patent: 5081655 (1992-01-01), Long
patent: 5118975 (1992-06-01), Hillis et al.
patent: 5150068 (1992-09-01), Kawashima et al.
patent: 5278457 (1994-01-01), Fumita
patent: 5281874 (1994-01-01), Sorrells et al.
Kinkead Arnold
Lee Benny T.
Telefonaktiebolaget LM Ericsson
LandOfFree
Digital controlled xtal osc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital controlled xtal osc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital controlled xtal osc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1058590