Discrete-time analog filter
US6621330B1 · kind B1 · utility
11Cited by
1References
47Claims
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Key dates
| Filing date | Jun 4, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H15/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A discrete-time analog filter, where a filter tap of the filter comprises a voltage-to-current converter and a current multiplier in a single stage so as to provide a current signal indicative of a weighted sampled voltage signal. The current signals are summed by one or more active cascode differential latches to provide an output logic signal indicative of the filtered output. The discrete-time analog filter finds applications in channel equalization, and is suitable for high data rates and low voltage applications. The voltage and current signals may be differential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.