System and method for transmitting tones in a push-to-talk...

Details System and method for transmitting tones in a push-to-talk... System and method for transmitting tones in a push-to-talk...

2009-03-11

2011-11-29

Tran, Anh (Department: 2819)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S517000, C455S519000, C455S521000

Reexamination Certificate

active

08068865

ABSTRACT:
Systems and methods for allowing transmission of tones by a push-to-talk (PTT) communication station are provided. The communication station can decouple the PTT button of the PTT communication station, allowing the transmission of the tones without actuating the PTT button. The decoupling can be performed in response to receipt of an unsolicited floor grant message. The communication station can also receive an input selection and automatically transmit a floor request message, a tone corresponding to the input selection and a floor release message.

REFERENCES:
patent: 7774011 (2010-08-01), Sung et al.
patent: 2006/0229093 (2006-10-01), Bhutiani et al.
patent: 2007/0249381 (2007-10-01), Forslow

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