Multiple duty cycle tap points for a precise and programmable duty cycle generator
AssigneeInternational Business Machines Corporation
InventorsFrancois I. Atallah, Anthony Correale JR.
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Abstract
A precise programmable duty cycle generator employs multiple duty cycle generators connected in series to provide multiple duty cycle tap point outputs, each with a known and precise value of a duty cycle from a source input signal having any duty cycle. The present invention transforms an incoming signal's duty cycle to a known value by a first programmable duty cycle generator, and then applies the output of the first programmable duty cycle generator to a second programmable duty cycle generator which provides multiple duty cycle tap point outputs, each having a different known value of a precise duty cycle.
Claims14
A programmable circuit for generating a plurality of output clock signals, each having a different desired duty cycle, comprising:
- a first duty cycle generator for converting an input clock signal of unknown duty cycle to a known and programmable duty cycle;
- a second programmable duty cycle generator connected in series with the output of the first duty cycle generator, and providing multiple tap point output signals, each with a known and precise duty cycle value.
Dependencies are inferred from the claim text.