Amplifier for analogue signal samples with automatic gain control, and circuit for digitisation of such samples
US3936819A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1973 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jan 10, 1993 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic device for amplifying, with automatic gain control by discr values, analogue signal samples and thereafter preferably effecting analogue-to-digital conversion of the samples, consists of an amplifier circuit, a comparator circuit, and a delay store circuit. The amplifier has a basic gain during a gain control or gain ranging operation, and supplies an output sample amplified with sufficient gain to bring it into the region of a predetermined voltage. The comparator circuit compares the output of the amplifier circuit with a reference and supplies an output in accordance with the result of the comparison. For analogue-to-digital conversion the amplifier circuit supplies for an input signal U an output signal 2U - VQ, where VQ is the quantification voltage, or, in other embodiments a signal 2U.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.