Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-06-12
1989-08-08
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307582, 307480, 3072721, 328 63, 328 72, 364131, H03K 513, H03K 17687, H03K 117, G05B 1508
Patent
active
048556157
ABSTRACT:
A switching circuit is described, for selecting between first and second clock signals. When it is desired to switch from the first to the second clock signal, the first clock signal is de-selected in synchronism with the beat of the first clock and then, after a delay, the second clock signal is selected in synchronism with the beat of the second clock. Conversely, when it is desired to switch from the second to the first clock signal, the second clock signal is de-selected in synchronism with the beat of the second clock and then, after a delay, the first clock signal is selected in synchronism with the beat of the first clock. This avoids the possibility of a short pulse or "glitch" at the instant of switch-over.
REFERENCES:
patent: 3751679 (1973-08-01), Rotier
patent: 4201927 (1980-08-01), Zuk
patent: 4229699 (1980-10-01), Frissell
patent: 4480198 (1984-10-01), Gass
patent: 4644568 (1987-02-01), Canniff et al.
patent: 4677433 (1987-06-01), Catlin et al.
patent: 4689496 (1987-08-01), Kerber et al.
patent: 4696019 (1987-09-01), Tulpule et al.
Active Memory Technology Ltd.
Miller Stanley D.
Phan Trong Quang
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