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:
Jul. 01, 2008
Filed:
Nov. 10, 2004
Dilip Kumar Biswal, Union City, CA (US);
Isaac Kam-chak Cheng, San Jose, CA (US);
Cecilia Oi-lin Chu, El Dorado Hills, CA (US);
Donald Lee Clare, Morgan Hill, CA (US);
Louis S. W. Mau, Cupertino, CA (US);
Dilip Kumar Biswal, Union City, CA (US);
Isaac Kam-Chak Cheng, San Jose, CA (US);
Cecilia Oi-Lin Chu, El Dorado Hills, CA (US);
Donald Lee Clare, Morgan Hill, CA (US);
Louis S. W. Mau, Cupertino, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for synchronizing data on a first device with data at a second device, includes: determining a pre-image of the data on the first device according to a filter after a previous synchronization with the data at the second device; determining a current image of the data at the second device according to the filter; determining a delta of the current image, where the delta comprises data that exists in the current image and has changed since the previous synchronization; instructing the first device to delete data that exists in the pre-image but not in the current image; and instructing the first device to UPSERT a union of the data that exists in the delta and the data that exists in the current image but not the pre-image. This is efficient in time and bandwidth resources while also providing consistent data integrity.