Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Patent
1996-04-25
1999-03-02
Nguyen, Chau
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
370469, H04J 316
Patent
active
058780440
ABSTRACT:
The invention resides in the field of transferring data and other information from multiple asynchronous TDM channels across a synchronous interface in digital blocks of a preset length. Presently, transfer of data and timing information requires serial transmission of frame payload, qualified with clock and frame pulse indications. A separate set of these signals is required in both directions for each port or physical link. An interface of the invention permits data transfer in blocks which are uniquely identified for a specific port or links and the position of the block within the frame (if the transfer is one of framed data). The invention greatly reduces the number of required signals, thus enabling reduction of pin count requirements and an increase in the number of serviced ports.
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patent: 5619499 (1997-04-01), Nakabayashi
"Four Channel DSI Framer", Eugene L. Parrella et al., IEEE International ASIC Conference and Exhibit, Mar. 1994, pp. 445-448.
Coady Alan Charles
Frischknecht Deborah Ann
Loewen Jonathan David
Pillar John Frank
Nguyen Chau
Northern Telecom Limited
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