Bipolar digitizer having compression capability
US4528549A · kind A · utility
10Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1983 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jan 27, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/56
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bipolar digitizer (A/D converter) is disclosed which uses a single comparator circuit for initially determining the polarity of a sampled input signal and for thereafter comparing the absolute magnitude of the signal to an applied ramp voltage. The time required for the ramp voltage to exceed the magnitude of the sampled input signal is converted into a digital waveform representative of the magnitude of the sampled input signal. Resistive means are selectively connected in shunt with a signal storage capacitor to achieve bipolar signal compression and increased dynamic range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.