Amplitude-and rise-time-insensitive timing-shaping filters
US5396187A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1992 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplitude- and rise-time-insensitive timing-shaping filter (10) for converting a selected input signal into a bi-polar output signal having a zero-crossing point which is independent of the rise-time and amplitude of substantially linear-edge input signals, and which is amplitude insensitive for input signals of arbitrary fixed shapes. The amplitude- and rise-time-insensitive timing-shaping filter (10) includes an attenuator (14) for generating an attenuated signal, a delay path (12) for generating a delay signal, and a differencer (16) for subtracting the attenuated signal from the delayed signal. The delay path (12) of the present invention includes a low-pass filter of a selected order and configuration, an all-pass filter with a selected order and configuration, or an all-pass-low-pass filter combination for generating a delayed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.