Adaptive buffering to reduce audio truncation

Details Adaptive buffering to reduce audio truncation Adaptive buffering to reduce audio truncation

2011-03-22

2011-03-22

Gary, Erika A (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S445000, C455S426100

Reexamination Certificate

active

07912498

ABSTRACT:
A method and apparatus are provided for reducing truncation of time sensitive information such as audio in a trunked radio system having a plurality of zone controllers. The method includes the steps of receiving a call request from a calling radio or wireline console by a controlling zone controller of the plurality of zone controllers and measuring a time necessary to set up a call connection between the controlling zone controller and a plurality of called radios or wireline consoles where the call connections of the plurality of called radios or wireline consoles are each set up through a different participating zone controller of the plurality of zone controllers. The method also includes the steps of determining a largest relative measured time among the measured times and buffering audio information from the calling radio for a time period proportional to the determined largest relative time.

REFERENCES:
patent: 5678193 (1997-10-01), Helm
patent: 6925175 (2005-08-01), Tegethoff
patent: 7020491 (2006-03-01), Kobayashi
patent: 2003/0148779 (2003-08-01), Aravamudan
patent: 2005/0070320 (2005-03-01), Dent
patent: 2006/0046697 (2006-03-01), Koren et al.
patent: 2007/0195735 (2007-08-01), Rosen et al.

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