Method and device for converting digital channel multiframes into packet multiframes
US4713804A · kind A · utility
Inventors
Key dates
| Filing date | Jul 3, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jul 3, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1635
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The method consists in converting an inputting multiframe including of M frames each having words assigned respectively to C multiplexed digital channels into an outgoing multiframe including of C packets each having M words of a respective channel. So as to only use a single memory, a word having a given rank in the outgoing multiframe and a word having said given rank in the inputting multiframe are read and written consecutively in a same cell of the single memory. The memory has a capacity at least equal to MC word cells. The MC cells are addressed according to an address order rebecoming identical to itself after a cycle of N multiframe periods, where N is the smallest integer so that C.sup.N .tbd.1 (mod (MC-1)).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.