Detection means for providing multiple baud values per individual baud period of a carrier signal to obviate baud timing ambiguities
US4225964A · kind A · utility
8Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5495
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Digital data borne by a carrier signal via a predetermined variation in some characteristic thereof during each baud period with respect to the same characteristic of a reference signal is detected by subdividing each baud period into n intervals, converting the carrier signal characteristic variation to a DC signal which is integrated over a baud period beginning with the inception of each of the intervals and converting to and storing the equivalent data baud value of each integrated DC signal, thus providing multiple messages from which to select a valid message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.