U.S. Patent number: 4,514,726
Filed: Aug 19, 1983
Issued: Apr 30, 1985
Inventor: Albert L. Whetstone et al.
Assignee: Display Interface Corporation
Although Ian Page's earlier audio-based mouse never gained commercial acceptance, Albert L. Whetstone, Kerry L. Shaklee, and Khosrow Modjallal revisited the idea in the early 1980s. But unlike Page's design, their mouse would use a "displacement pad with associated displacement transducer means and velocity/distance transducer means." Moving the mouse would cause "displacement of the displacement pad produces direction-indicative signals and causing vibration of the velocity/distance transducer produces distance-indicative signals."
Image taken from U.S. Patent 4,514,726 - Digitized by Google
Computer mouse evolution: Patent designs from the 1970s and 1980s
by Bill Detwiler | June 18, 2010, 10:43am PDT | Image 15 of 31
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About Bill Detwiler
Bill Detwiler is Head Technology Editor of TechRepublic. Previously, he worked as a Support Tech and IT Manager in the social research and energy industries.
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RE: X-Y Position Indicator For A Display System (Computer mouse evolution: Patent designs from the 1970s and 1980s)
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