Method and apparatus for transmitting an electrical signal featuring pulse edge compression
US6239637A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal transmission device including an input for receiving an input electrical signal containing a succession of pulses. The input signal has a high data rate, preferably in excess of 10 gigabits per second. The signal is split in two identical specimens, referred to as first signal and second signal and injected in respective channels of a lossy transmission path whose function is to carry the signals to an intended destination. Before introducing the second signal in the respective channel of the lossy signal transmission path, a negative DC shift is applied to the second signal. During the transmission of the first and the second signals through the lossy signal transmission path, they are subjected to distortions that cause the leading and the trailing edges of pulses in the signals to spread out. To compensate for this distortion, the first and the second signals are processed at the destination by first and second functional units that comprise non-linear signal transmission paths. The first functional unit effects compression of the leading edge of the pulses in the first signal while the second functional unit effects compression of the trailing edges of pulses in the se…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.