Signal transmitter used in the transmission of data in a communication system
US6243844A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1997 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S370/902
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A signal used in the transmission of data in a communication system including immediately successive cells for the purpose of cell synchronization, includes filler cells containing a predefined bit pattern. This pattern is provided with an error protection code that differs from an error protection code used for user data. Even if the user data should coincidentally contain the predefined bit pattern, the synchronization circuit will not be able to be simulated, since this false bit pattern is provided with a different error protection code. In order to test and ensure the synchronization state, a BIP (bit interleaved parity) value at the end of the cell is checked at the receiver end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.