Patent · US Active

Use of media timestamp to indicate delays in push-to-talk over cellular group calls

US7945277B2 · kind B2 · utility

0Cited by

2References

23Claims

0Family size

Assignee

Sony Ericsson Mobile Communications AB · SE

Inventors

Gary Cole · Cary, US
Jeff Griffin · Mesa, US

Key dates

Filing date	Jul 26, 2006
Grant date	May 17, 2011
Priority date	—
Expiry date	Mar 16, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/45
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method to indicate delays in a push-to-talk over cellular (PoC) group call may include offsetting a timestamp in a data stream being transmitted to a late listener to indicate a delay from when the data stream was transmitted to a first listener. The data stream includes data convertible to speech. The method may also include transmitting the data stream including the offset timestamp to the late listener.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.