Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1989-08-10
1992-12-22
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307262, 328155, 328 63, 328 72, 375119, H03K 513, H03K 522
Patent
active
051736179
ABSTRACT:
A digital phase lock loop that does not depend on a voltage controlled oscillator (VCO) for phase locking. A phase detector (PD), terminated with a latch, controls an up/down counter that programs an increase/decrease of delay on the delay line. The tapped output of the delay line goes through a two phase generator which in turn feeds back to the PD for comparison with the reference clock. This process is repeated until phase locking is obtained.
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Alsup Mitchell
Dobbs Carl S.
Haddad Elie I.
Moughanni Claude
Wu Yung
Callahan Timothy P.
Motorola Inc.
Whitaker Charlotte B.
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