Apparatus and method for controlling a cursor on a computer display
US4682159A · kind A · utility
115Cited by
62References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1984 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Jun 20, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04892
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an apparatus and method for controlling the cursor of a computer display. The apparatus includes a headset which is worn by the computer operator and an ultrasonic transmitter for transmitting sound waves which are picked up by the receivers in the headset. These sound waves are compared for phase changes, and circuitry is provided for converting the phase changes into position change data which is used by a computer to control the cursor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.