Method to expand an analog signal and device to implement the method
US4920279A · kind A · utility
43Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Sep 28, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for enlarging part of an analog input signal, and a circuit to implement this method. The circuit includes an amplifier which receives the analog input signal, the gain of which is controlled by a programming signal which varies as a function of the leading edge of the analog input signal and of a maximum threshold of the output signal from the circuit. A subtractor receives a substraction signal which is a function of an upper threshold and a lower threshold of the output signal from the circuit, and a signal from the amplifier, and then provides the output signal from the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.