Digitizer tablet with internally stored wireless stylus
US5180891A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Oct 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/1632
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless stylus includes a pocket clip having a latch which, upon insertion into a storage compartment within a digitizer, engages a cam. The cam has a shape that causes the latch to move into engagement with a keeper as the stylus is pushed into the compartment and then released. The keeper holds the stylus in a stored position. The latch is released upon first pushing the stylus and then releasing it. Biasing means engages the stylus and moves it against the keeper and ejects the stylus outwardly from the storage compartment allowing the stylus to be grasped and withdrawn from the tablet. The storage compartment is open at opposite ends and has two cams, one at each end of the compartment so that the stylus, at the convenience of the user, can be inserted into either end for storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.