The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
May. 12, 1997
William A Brakefield, Round Rock, TX (US);
Elie Antoun Jreij, Pflugerville, TX (US);
Vedat M Bilgutay, Round Rock, TX (US);
Bruce E Burnett, Austin, TX (US);
James S Umstetter, Round Rock, TX (US);
Siemens Information and Communication Networks, Inc., Boca Raton, FL (US);
Abstract
A method and apparatus for utilizing a multi-channel digital communications line provides dynamic bandwidth allocation of user data channels for supporting a data device and an audio device, such as a digital telephone. In the preferred embodiment, the communications line is an ISDN line in which both B-channels are dedicated to data transfers for the data device when the audio device is idle. However, the signaling channel is continuously monitored to detect events in which incoming and outgoing voice calls are indicated. One of the B-channels is surrendered in order to allow connectivity of the voice call. Reallocation of the surrendered B-channel to the support of a data transfer occurs upon detection of a D-channel signal that indicates that the audio device has released the channel.