Method and apparatus for recognizing in a receiver the start of a telegram signal consisting of a bit impulse sequence
US4506372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1982 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Nov 9, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/046
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an apparatus and a method for recognizing the start of a noise-corrupted received telegram signal, and wherein the telegram signal consists of an information-containing sequence of bits ahead of the telegram signal, thereafter transmitting an intermediate sequence of bits following the preliminary sequence, but still ahead of the telegram signal, wherein the preliminary and the intermediate sequences are correlated with different parts of the preliminary and of the intermediate sequence in a pre-arranged manner, and detecting the pre-arranged manner so as to positively signal termination of the intermediate sequence; recognition of the start of the telegram signal is thereby ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.