The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2010
Filed:
Nov. 06, 2007
John Wood, Santa Cruz, CA (US);
John Wood, Santa Cruz, CA (US);
Multigig Inc., San Jose, CA (US);
Abstract
A frequency divider using a clock source with a plurality of phase signals of a multi-phase oscillator. In one version, the divider includes a plurality of spot-moving stages that are connected to form a ring. Spot-moving stages are stages that advance a one or a zero, while clearing the previous stage. Depending on the number of stages and the number of phases of the clock to advance a spot through all of the stages, a divider ratio is determined. In another embodiment, a plurality of latch elements is provided with a divided input and each is re-clocked with the phases of a multi-phase oscillator. The outputs of the latch elements are combined in a capacitor array to create the output waveform. An interpolator useful in conjunction with a frequency divider is also disclosed. When the interpolator is placed in the feedback path of a PLL, a fractional frequency multiplier/divider results.