Methods, systems and program products for communicating file modification information
US8121990B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/178
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one feature of the system, a method for updating a file maintained by first, second and third computers. The method comprises steps of the first computer communicating to the second computer a file modification instruction, the file modification instruction including the file identifier and a modification for the file. The third computer issuing to the second computer a request to notify the third computer of a file modification when the master property identifier does not match the property identifier maintained by the third computer. The second computer receiving the request to notify and, in response to the file modification instruction, implementing the modification of the master file whereby the master property identifier changes, and, upon noting that the master property identifier does not match the property identifier maintained by the third computer, issuing a master update to the third computer, the master update including the file identifier, the master property identifier and the modification for the file. The third computer receiving the master update and responsively modifying the version of the file that it maintains and updating the property identifier …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.