Telephonic communications – Including aid for handicapped user
Reexamination Certificate
2007-02-06
2007-02-06
Ramakrishnaiah, Melur (Department: 2614)
Telephonic communications
Including aid for handicapped user
C379S093310, C379S093330
Reexamination Certificate
active
10810239
ABSTRACT:
The present invention is directed to providing compatibility between teletype telephone devices. In particular, embodiments of the present invention alter the described duration of tones used to encode individual characters generated in accordance with a first protocol so that the description complies with a second protocol. Other embodiments of the present invention, in response to receiving a description of tones expressed according to a first protocol, generate tones in accordance with a second protocol. Where a protocol used by a sending device is capable of transmitting text at higher rates than a protocol used by a receiving device, the descriptions of the tones may be buffered. Embodiments of the present invention may additionally provide feedback to the users of transmitting files when data is buffered, to indicate that the transmission is in progress.
REFERENCES:
Taskett; Methods And Apparatus for providing a prepaid remote memory customer account for the hearing impaired ; Feb. 13, 1997; WO 97/05732.
“Access for 9-1-1 and Telephone Emergency Services,” Americans with Disabilities Act, U.S. Department of Justice, Civil Rights Division (Jul. 15, 1998), available at http://www.usdoi.gov/crt/ada/911ta.htm, 11 pages.
H. Schulzrinne et al., “RFC 2833—RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals,” Network Working Group Request for Comments 2833 (May 2000), available at http://www.faqs.org/rfcs/rfc2833.html, 23 pages.
G. Hellstrom et al., “RFC 2793—RTP Payload for Text Consersation,” Network Working Group Request for Comments 2793 (May 2000), available at http://www.faqs.org/rfcs/rfc2793.html, 8 pages.
Avaya Technology Corp.
Ramakrishnaiah Melur
Sheridan & Ross P.C.
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