Accuracy bootstrapping
US5327129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1993 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Jul 6, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/168
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for a system physically realizing a transfer function and having improved accuracy and fast calibration is described, comprising a plurality of stages configured in a serial fashion, each stage having a transfer function realized with fixed and adjustable elements. Control logic for selectively reconfiguring said stages, operable for coupling any one of said stages to a reference signal and for further coupling said one of said stages to the remaining ones of said stages in a serial fashion is added; control logic for selectively causing said stages to transmit at their output responses to an input which enable measurement of individual components within said stages is included; and control logic for updating the adjustable elements within each stage is described. A calibration technique is disclosed wherein the system is reconfigured to allow any one of said stages to be configured as the first stage in a chain made up of all of said stages, serially coupled, the first stage outputting signals indicative of the value of components within it in response to selective excitation by the reference signal, the remaining stages capturing said outputted signals and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.