Receiving apparatus and method of outputting received signal in multimedia communication
US5886999A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1996 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Aug 8, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A demultiplexer separates the data obtained by the demodulation into the data for each information medium, and a synchronous word detection state monitor detects the synchronous word contained in a received signal of a predetermined information medium and compares the state in which said synchronous word is detected with the preset standard, and outputs an output stop signal when the synchronous word detection state is worse then the preset standard. An error-correction decoder subjects the data obtained by the demodulation to an error-correction decoding processing, and an error-correction encoder subjects the decoded data to an error-correction encoding processing. A line quality estimating portion estimates the quality of the line by comparing the data obtained by the error-correction encoding processing with the demodulated data before decoding and an output controller stops outputting the received signal to the external terminal when the line quality is worse than the reference quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.