Passive activity monitor for livestock
US4618861A · kind A · utility
98Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1985 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Mar 20, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An estrus detection system using a transponder mounted to an animal and including a motion sensor. The motion sensor produces a series of pulses as a function of movement. A counting circuit is energized by the sensor. A storage circuit retains the count together with an identification code unique to the animal. The transponder is interrogated to receive data and such is processed to determine estrus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.