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:
Jun. 03, 2008
Filed:
Jul. 23, 2004
Richard W. Adkisson, Dallas, TX (US);
Ryan L. Akkerman, Allen, TX (US);
Richard W. Adkisson, Dallas, TX (US);
Ryan L. Akkerman, Allen, TX (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A programmable sync pulse generator and sync pulse generation method are operable in a clock synchronizer to effectuate data transfer between first circuitry disposed in a first clock domain and second circuitry disposed in a second clock domain. The first clock domain is operable with a first clock signal and the second clock domain is operable with a second clock signal. A phase detection circuitry is operable to sample the first clock signal with the second clock signal to determine coincident edges of the first and second clock signals. Validation circuitry is operable to validate the coincident edges based upon skew tolerance between the first and second clock signals and to generate a valid edge signal responsive thereto. Sync generation circuitry, responsive to the valid edge signal, is operable to generate synchronization pulses in the first clock domain and synchronization pulses in the second clock domain.