Input device for a display system using phase-encoded signals
US4745402A · kind A · utility
137Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Feb 19, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J9/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a display system using a remote control handunit having "pointing function" capability for moving a cursor displayed on a display screen by changing the angular position of the remote control handunit. Specifically, the individual transmitting transducers of the remote control handunit are driven with signals having a predetermined phase relationship relative to each other such that the resultant phase received by the receiver is indicative of transmitter angular position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.