Let detection system for monitoring movement of a net cord
US11383145B1 · kind B1 · utility
2Cited by
19References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2022 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Feb 15, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/50
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A let detection system includes a sensor including an accelerometer attached to a tennis net. The sensor is in wireless communication with an umpire device able to send a message to the sensor, wherein the message causes the sensor to calibrate and begin monitoring for a let. The sensor determines a three-dimensional (3D) vector representing the gravity acting on the sensor as a baseline. When the sensor detects vertical acceleration of the net relative to the baseline and the vertical motion is above a preset threshold, the sensor automatically transmits a let notification message to the umpire device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.