Audio racquet ball
US4281833A · kind A · utility
19Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1978 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Mar 20, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/27
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A non-visual ball and paddle game played through the medium of sound. Ball location, paddle position and playing field are defined by variations of volume, tone, pitch, frequency and stereo separation by means of stereo earphones worn by each player.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.