Selective sampled peak detector and method
US6232802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for tracking a peak level of an input signal includes a comparator for comparing the peak level of the input signal with a reference peak voltage signal. A sample and block circuit is coupled to the output of the comparator and is capable of sampling a portion of the input signal. The sampled portion of the input signal is defined by a smart window (timing window) which is received by the sample and block circuit. The sample and block circuit controls a charge pump that determines the level of the reference peak voltage signal. A method of generating a reference peak voltage signal includes receiving an input data, generating a timing window based upon the input data to define a sampling portion in the input data, comparing a level of the reference peak voltage signal with a level of the sampling portion in the input data, and determining a level of the reference peak voltage signal based upon the comparing step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.