US Patent Application 18311129. Precise Time Management Using Local Time Base simplified abstract
Contents
Precise Time Management Using Local Time Base
Organization Name
Inventor(s)
Christopher D. Finan of Cupertino CA (US)
Alexander Ukanwa of Morgan Hill CA (US)
Charles F. Dominguez of San Carlos CA (US)
Jean-Didier Allegrucci of Sunnyvale CA (US)
Jeffrey J. Irwin of Cupertino CA (US)
Kalpana Bansal of San Jose CA (US)
Michael Bekerman of Los Gatos CA (US)
Remi Clavel of Milpitas CA (US)
Precise Time Management Using Local Time Base - A simplified explanation of the abstract
This abstract first appeared for US patent application 18311129 titled 'Precise Time Management Using Local Time Base
Simplified Explanation
The patent application describes a method and apparatus for synchronizing a timebase.
- The invention includes a timebase management circuit that has limit circuitry in one clock domain and adjustment circuitry in another clock domain.
- The limit circuitry generates an initial timebase limit based on a global timebase.
- The adjustment circuitry generates an adjusted timebase limit based on the initial timebase limit.
- A storage circuit in the second clock domain stores a local timebase.
- Update circuitry generates an updated local timebase using a clock signal in the second clock domain.
- The updated local timebase is subject to the adjusted timebase limit.
Original Abstract Submitted
A method and apparatus for synchronizing a timebase is disclosed. A timebase management circuit includes limit circuitry, in a first clock domain, which generates, based on a global timebase, an initial timebase limit. The timebase management circuit includes, in a second clock domain, adjustment circuitry that generates an adjusted timebase limit based on the initial timebase limit. A storage circuit in the second clock domain stores a local timebase. Update circuitry, coupled to an output of the storage circuit, generates an updated local timebase using a clock signal in the second clock domain, wherein the updated local timebase is subject to the adjusted timebase limit.
