Cordless digitizer transducer/cursor status transmission apparatus and method
US5525981A · kind A · utility
71Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Jul 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04162
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A cordless transducer/cursor having a transmitter for use in conjunction with the receiver of a digitizer tablet. The transmitter receives parallel binary signals representing the status of non-positional functions such as command button status and the pressure applied to a stylus of the transducer/cursor and converts these into a serial stream of binary data for electrostatic or electromagnetic transmission to the receiver which, in turn, converts the serial stream into a plurality of parallel binary signals consistent with those received and converted by the transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.