Athletic performance monitoring systems and methods in a team sports environment
US9452319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Aug 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S482/901
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Systems, apparatuses, and methods estimate the distance between a player and a ball by transmitting a chirp (sweep signal) to a radio tag located on the ball. During the chirp, the frequency of the transmitted signal is changed in a predetermined fashion. The radio tag doubles the transmitted frequency and returns the processed signal to a transceiver typically located on the player. The currently transmitted frequency is then compared with the received frequency to obtain a difference frequency from which an apparatus may estimate the distance. The apparatus may simultaneously receive the processed signal from the radio tag while transmitting the sweep signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.