Identifying changes to media-device contents
US8769033B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jan 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method to expose information about a set of data objects to a master device is provided. A benchmark sequence indicator is used in connection with a set of sequence indicators that are each related to data objects (such as media files on a device) to satisfy multiple independent requests for information about certain objects that satisfy sequence criteria conveyed from multiple requesting applications. An embodied data structure includes a set of properties associated with a data object as well as a sequence-identification field that also corresponds to the data object and that is populated with an object sequence indicator that indicates when a change occurred to the data object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.