Data transfer method and apparatus
US5878044A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0697
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.