Transmission system via communications protected by an error management code
US5745509A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1995 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Nov 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data transmission system wherein data to be transmitted is supplied to an encoding device (5) which comprises a data analysis circuit (35) for producing a parity code and an output circuit (32) for assigning the parity code to the input data so as to convert it into protected data for transmission. The data analysis circuit includes: (i) a serial-to-parallel converter (30) for converting the input data into "n" parallel data streams, the bits in each stream being at instants which are multiples of n.times.T, where T is the bit period of the input data; (ii) "n" cascade combinations of delay elements, each cascade delaying one of the "n" parallel-converted data streams by time periods which are multiples of n.times.T, each cascade having tapping points following certain ones of the delay elements therein; and (iii) combining circuits (GR1, GR2, OE) having inputs connected to tapping points of each of the cascade combinations and which derive the parity code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.