John L. Hilburn
Engineering at Baird Dr, Baton Rouge, LA
License number
Louisiana PE.0012485
Issued Date
Oct 20, 1970
Category
Civil Engineer
Type
Electrical and Computer Engineer
Address
Address
1212 Baird Dr, Baton Rouge, LA 70808
Professional information
Chordic Keyboard System For Generating A Signal In Response To A Chord That Is Assigned Using A Correlation Based On A Composite Chord-Difficulty Index
US Patent:
5493654, Feb 20, 1996
Filed:
Aug 9, 1994
Appl. No.:
8/288220
Inventors:
Daniel Gopher - Haifa, IL
John Hilburn - Baton Rouge LA
David Vicknair - Baton Rouge LA
John Hilburn - Baton Rouge LA
David Vicknair - Baton Rouge LA
Assignee:
Infogrip, Inc. - Ventura CA
International Classification:
G06F 302
US Classification:
341 22
Abstract:
A chordic keyboard system for communicating with a data processing system. The chordic keyboard system includes ergonomic features, i. e. , a keyboard that is tilted and an integrated palm rest. The chordic keyboard system also includes data entry features, i. e. , storage for data representative of a plurality of chords, each chord corresponding to a subset of the plurality of keys of the chordic keyboard, and for a plurality of symbols, each data representative of a chord represented by and corresponding to one of the plurality of symbols according to a frequency-of-use index of the symbol and further according to a correlation based on a chord-difficulty index of the chord. The plurality of groups includes an alphabetic group, a punctuation/cursor control group, an editing/control function group, a numerical/mathematical group, and a punctuation/symbolic-type group. The chordic keyboard system also includes means for receiving data from the chordic keyboard identifying a selected chord of the plurality of chords, means for identifying, using the stored data and symbols, the group corresponding to the selected chord, and for identifying a selected symbol of the plurality of symbols representative of the selected chord, and means for generating a signal corresponding to the selected symbol.
Methods And Apparatus For Using Multiple Keyboards Connected In A Daisy Chain To A Keyboard Port Of A Computer
US Patent:
5576706, Nov 19, 1996
Filed:
Feb 3, 1994
Appl. No.:
8/191204
Inventors:
Darrin P. Daigle - Santa Barbara CA
John L. Hilburn - Baton Rouge LA
John L. Hilburn - Baton Rouge LA
Assignee:
Infogrip, Inc. - Carpinteria CA
International Classification:
H03K 1794
US Classification:
341 22
Abstract:
Multiple keyboards (chord or standard format) are connected in a daisy chain fashion to a computer using only the keyboard port of the computer. The keyboard system has an input connector and an output connecter, wherein a child keyboard system that includes a plurality of keys corresponding to characters is connected to the input connector and one of a computer and a parent keyboard system that includes a plurality of keys corresponding to characters is connected to the output connector.
Chordic Keyboard System For Generating A Signal In Response To A Chord That Is Assigned Using A Correlation Based On A Composite Chord-Difficulty Index
US Patent:
5642108, Jun 24, 1997
Filed:
Dec 29, 1994
Appl. No.:
8/365926
Inventors:
Daniel Gopher - Tivon, IL
John Hilburn - Baton Rouge LA
David Vicknair - Baton Rouge LA
John Hilburn - Baton Rouge LA
David Vicknair - Baton Rouge LA
Assignee:
Infogrip, Inc. - Ventura CA
International Classification:
G06F 302
US Classification:
341 22
Abstract:
An improved chordic keyboard system is disclosed. The chordic keyboard system is comprised of dual chordic keyboards wherein primary symbols are mapped based on a random access concept in accordance with the Gopher Correlation.