Noise elimination and refractory period control in demand pacers
US4173230A · kind A · utility
10Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1978 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Jun 19, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Oscillator pulses are coupled to a counter, the ultimate count interval of which causes an output amplifier to produce a stimulating pulse and also to reset itself. A refractory control flip-flop is also thereby reset, and blocks demand mode resetting pulses for the refractory period. A second counter is resettable by the input amplifier, and defines a count interval during which noise pulses are rejected. A second flip-flop is responsive to the second counter and to the refractory flip-flop selectively to reset the first counter based on demand pacing criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.