U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?

Newsletter  PatentStorm News

Make the Most of PatentStorm

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest patents by subscribing to an RSS feed.

Got questions? Ask a Patent Expert!

Registered users: Manage your profile, comments and alerts.

 

US Patent 6135886 - Variable-conductance sensor with elastomeric dome-cap

US Patent Issued on October 24, 2000
Estimated Patent Expiration Date: Icon_subject July 24, 2018Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
loading...


View Patent Images (PDF)
(Registered users only)

Abstract

Improved methods for using a dome-cap sensor wherein an injection molded dome-cap is combined with an analog active element which is positioned to contact conductive elements of an electronic circuit. The dome-cap is variably depressible for transferring force of varying intensity into the active element to provide variable conductivity connecting the proximal conductive elements. The electronic circuit reads the active element as being in any one of at least three or more readable states dependent upon amount of pressure applied to the active element. Relief of depressive force allows the dome-cap to return to a raised position and one which can indicate the sensor as electrically deactivated. Also disclosed is an improved analog sensing circuit including a user manipulable variable-conductance sensor, the improvement including the variable-conductance sensor being an injection molded dome-cap with an analog material and variably depressible to variably compress the material; the analog material, at least when compressed, is contacting two proximal circuit elements, wherein the degree of compression determines the degree of conductivity between the two proximal circuits.

Inventor

Application

No. 122269 filed on 07/24/1998

US Classes:

463/37Hand manipulated (e.g., keyboard, mouse, touch panel, etc.)

Field of Search

338/114, Deformable463/36, Player-actuated control structure (e.g., brain-wave or body signal, bar-code wand, foot pedal, etc.)463/37, Hand manipulated (e.g., keyboard, mouse, touch panel, etc.)273/148B, All video game accessories345/156DISPLAY PERIPHERAL INTERFACE INPUT DEVICE

Examiners

Primary: Martin-Wallace, Valencia
Assistant: Paradiso, John

US Patent References

3806471, 4315238, Bounceless switch apparatus
Issued on: 02/09/1982
Inventor: Eventoff
4369971, Electronic bowling game
Issued on: 01/25/1983
Inventor: Chang ,   et al.
5207426, Controller for a game machine
Issued on: 05/04/1993
Inventor: Inoue, et al.
5364108, Game apparatus
Issued on: 11/15/1994
Inventor: Esnouf
5510812, Piezoresistive input device
Issued on: 04/23/1996
Inventor: O'Mara, et al.
5689285, Joystick with membrane sensor
Issued on: 11/18/1997
Inventor: Asher
5704612, Arcade game with color sensing apparatus
Issued on: 01/06/1998
Inventor: Kelly, et al.
5764219, Controller for improved computer pointing devices
Issued on: 06/09/1998
Inventor: Rutledge, et al.
5999084Variable-conductance sensor
Issued on: 12/07/1999
Inventor: Armstrong

International Class

A63F 009/24

Comments

No comments for this page
 
 
Forgot password?
Register here