Golf exercising aid device
US5338036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Jun 9, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B69/3608
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A simple golf exercising aid device for notifying a golf player immediately after any head-up. The device comprises sound pickup means for an impacting sound caused by the impact of a club head against a golf ball, first means which compares, with a threshold value, a waveform within a predetermined frequency band out of the signals provided by the sound pickup means and outputs the result after a predetermined delay time, a motion sensor made up of an earth magnetic field sensor or an angular velocity sensor, for converting the motion of a golf player's head into an electrical signal, and second means which rectifies and then differentiates the output signal of said motion sensor, and which compares the differentiated output with a threshold value. Said motion sensor is mounted a portion of the golf player's head, and judgment output is provided when the timings of the outputs from the two means agree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.