Apparatus, and an associated method, for communicating text...

Details Apparatus, and an associated method, for communicating text... Apparatus, and an associated method, for communicating text...

2008-06-03

2008-06-03

Perez-Gutierrez, Rafael (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C379S052000, C455S414100

Reexamination Certificate

active

07382752

ABSTRACT:
Apparatus, and an associated method, for facilitating communication of text data, such as TTY data formed at a mobile node. The mobile node includes a TTY text generator together with mobile station circuitry, operable in a cellular radio communication system. The mobile node provides for CTM (Cellular Text Mode) modulation of the text data. If a connection is formable with the network part of the cellular communication system by which to communicate CTM-modulated data, the text data is sent as CTM-modulated. If such a connection is not formable, detection is made of the failure of the connection, and selection is made to communicate the text data as TTY-modulated data.

REFERENCES:
patent: 5577087 (1996-11-01), Furuya
patent: 5956651 (1999-09-01), Willkie et al.
patent: 2003/0053603 (2003-03-01), Vejlgaard
Dorbecker et al., “The cellular text telephone modem—The sloution for supporting text telephone functionality in GSM networks.”, May 2001, Acoustics, Speech and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEE International Conference on, vol. 3, Iss., 2001, pp. 1441-1444.
Universal Mobile Telecommunications System (UMTS); Global text telephony; Transport of text in the voice channel (3GPP TS 26.226 version 5.0.0 Release 5); ETSI TS 126 226; ETSI Standards, European Telecommunications Standards Institute, Sophia-Antipo, Fr. Mar. 2001.

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