Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1997-05-12
2000-04-04
Horabik, Michael
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
370357, 379 9309, 379 9314, H04L 1266, H04J 312, H04M 1100
Patent
active
060470062
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.
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Bilgutay Vedat M.
Brakefield William A.
Burnett Bruce E.
Jreij Elie Antoun
Umstetter James S.
Harper Kevin C.
Horabik Michael
Siemens Information and Communication Networks Inc.
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