06244512 is referenced by 185 patents and cites 23 patents.

A hand-held data collection device with a user interface surface that is wider than its handgrip area. Also, a hand-held data collection device with an upwardly facing surface containing a user interface and a side surface containing a plurality of actuators. The data collection device can be held in one hand with a finger reaching the actuators. An opposite side surface can also contain a plurality of actuators. The data collection device can include combinations of a marker beam generator, an indicia reader, a display, a manually actuatable selector, a voice input and a digitizer. The indicia reader can be an optical reader or a radio frequency tag reader. Some of the actuators can have different shapes. The actuators can include an indicia reader actuator or a function selector. The data collection device can collect, for example, handwritten information, including signatures.

Title
Hand-held data capture system with interchangeable modules
Application Number
9/139492
Publication Number
6244512 (B1)
Application Date
August 25, 1998
Publication Date
June 12, 2001
Inventor
Stephen J Kelly
Marion
IA, US
William T Gibbs
Cedar Rapids
IA, US
Darrell L Boatwright
Cedar Rapids
IA, US
Robert G Geers
Cedar Rapids
IA, US
Darald R Schultz
Cedar Rapids
IA, US
George E Hanson
Cedar Rapids
IA, US
Keith K Cargin Jr
Cedar Rapids
IA, US
Dennis A Durbin
Cedar Rapids
IA, US
Ronald L Mahany
Cedar Rapids
IA, US
Arvin D Danielson
Solon
IA, US
Phillip Miller
Cedar Rapids
IA, US
Steven E Koenck
Cedar Rapids
IA, US
Agent
Simmons Perrine Albright & Ellwood
US
Assignee
Intermec IP
CA, US
IPC
G06K 7/10
View Original Source