Combined pacemaker delta modulator and bandpass filter
US4692719A · kind A · utility
19Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Aug 1, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A combined pacemaker delta modulator and bandpass filter which requires only one active device. The sense signal is applied through a conventional delta modulator capacitor to the minus input of a differential amplifier, and the conventional current sources are connected to the minus input. Instead of simply connecting the plus input to a reference potential, however, it is also coupled, through a resistor, to the input signal, and an RC network is connected across the two inputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.