Baseline restorer circuit
US4093876A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1977 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Jan 5, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A resistor placed between the input and output of a first circuit has a low value when a control signal delivered by a threshold discriminator circuit has a first value and has a high value when the control signal has a second value. The input of an amplifier A.sub.3 of the first circuit is connected through a switch either to the output of a first amplifier A.sub.1 or to the output of a second amplifier A.sub.2. The first amplifier has a negative input connected to a coupling capacitor of the first circuit and to the output of the amplifier A.sub.3 and a positive input connected to ground. The amplifier A.sub.2 has a negative input connected to the output of the amplifier A.sub.3 and to ground and a positive input connected to the negative input of the amplifier A.sub.1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.