Device and method for digital vestigial sideband modulation
US5801595A · kind A · utility
8Cited by
2References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 10, 1997 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jan 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital signal processing device and method for vestigial sideband (VSB) modulation of a digital signal. A 2.sup.n -ary digital signal d.sub.i is provided to a baseband shaping filter which samples the signal to provide a baseband signal which has real and imaginary portions Re(S.sub.bb (kT)) and Im(S.sub.bb (kT)), where ##EQU1## The VSB signal is provided with perfect sideband suppression without using analog filters. The digital signal processing device and method is characterized by requiring minimal bandwidth in the shaping filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.