System and method for passive communication services
US9819700B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 19, 2011 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/58
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Passive presence information for a first user of a service, such as a conversation service, is obtained by analyzing user activity logs. This is performed upon request for a second user. Thus lightweight presence information can be obtained without requiring the higher overhead required in a conventional Internet Protocol Multimedia Service (IMS) environment. Such a lightweight presence feature can enable other services including a conversation service that allows users to update a conversation object. Users can listen for updates to particular conversation objects, thus providing a simulated real-time push experience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.