Error screening based on code and control information consistency in a communication system
US6662339B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/004
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Improved error screening techniques are used in processing digital audio or other types of information received in a digital communication system. Control information associated with a given packet of the received information is identified and compared with a decoding requirement of the packet, in order to control the generation of an error indicator for the packet. More particularly, the error indicator may be generated in response to an inconsistency between the control information and the decoding requirement. For example, the control information may include an indication of packet length that can be compared to a number of bits required to decode the corresponding packet, with any inconsistency between the packet length indication and the number of required bits leading to the generation of an error flag for the packet. The invention is particularly well-suited for use in the processing of encoded digital audio information received in a hybrid in-band on-channel (HIBOC) digital audio broadcasting (DAB) system, but is also applicable to other types of information and other types of communication systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.