EMI suppression coding
US5422919A · kind A · utility
15Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Nov 10, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2215/064
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
EMI suppression technique that pseudorandomizes the positive or negative going transitions that are used to represent one binary state in a transmitted digital signal such as in MLT-3 data format. By pseudorandomizing the selection of these transitions, substantial spreading of the spectral energy occurs. Descrambling need not occur since each transition is recognized as the encoded binary state. Thus, the data sender can encode the data and suppress EMI without any changes to the receiver's equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.