Palm Electronics & Handheld Devices Keyless flat panel portable computer notebook, Patent Number

Keyless flat panel portable computer notebook

Patent Number:

US 5,049,862

Title:

Keyless flat panel portable computer--computer aided notebook

Inventors:

James Dao; David C. Foyt; Jeffrey J. Dao;

Kenneth R. Allen

Issue Date:

September 17, 1991

Earliest Filing Date:

October 6, 1989

Representative Independent Claim:

A portable computer comprising: a first panel having a first flat surface; a second panel having a second flat surface; hinge means for joining said first panel to said second panel such that said first flat surface is juxtaposed to said second flat surface in a closed position and is disposed side by side in a common plane in one of a selection of open positions; said first flat surface comprising a first digitizer; said second flat surface comprising a second digitizer and a display juxtaposed together to form a digitizer-display unit; and a stylus connectable to at least one of said first panel and said second panel for interacting with at least one of said first digitizer and said second digitizer, wherein data entered on one of said digitizers and displayed on said digitizer-display unit is freely alterable on said digitizer-display unit.

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