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Automated Keyboard Tester

IP.com Disclosure Number: IPCOM000059926D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 13K

Publishing Venue

IBM

Related People

Farrell, MJ: AUTHOR [+2]

Abstract

A technique is described whereby a tester consisting of a controller, overhead support devices and a base fixture provide the means to automatically test keyboards for both function and reliability. The controller, consisting of an IBM Datamaster 5324 computer, utilizes three program routines: (1) Space Based Operating System which contains the necessary routines to allow an application program to interface with the disk drives, display and the keyboard. (2) Keyboard Test Program which directs the electrical solenoids in the support devices to actuate the keyboard's keys and then verify if the keyboard data word response is correct. (3) Base Fixture Interface Program which directs the sequential events to the keyboard under test. The controller has two basic software modes: an automatic mode and a manual mode.

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Automated Keyboard Tester

A technique is described whereby a tester consisting of a controller, overhead support devices and a base fixture provide the means to automatically test keyboards for both function and reliability. The controller, consisting of an IBM Datamaster 5324 computer, utilizes three program routines: (1) Space Based Operating System which contains the necessary routines to allow an application program to interface with the disk drives, display and the keyboard. (2) Keyboard Test Program which directs the electrical solenoids in the support devices to actuate the keyboard's keys and then verify if the keyboard data word response is correct. (3) Base Fixture Interface Program which directs the sequential events to the keyboard under test. The controller has two basic software modes: an automatic mode and a manual mode. The automatic mode tests the keyboard and displays information regarding pass or fail operation. Manual mode is used in diagnostic operations and consists of three menus: (a) six individual keyboard function tests, (b) turn on and off and check each base fixture device, and (c) sequential looping of test fixture controls. The controller has an interface card connected to the support devices and the data bus from the keyboard under test. A digital in and digital out (DI/DO) circuit interfaces the controller to the base fixture's devices. The overhead support fixture consists of solenoid electric support circuitry and eighty-four electrical solenoids. The fixture is hardware designed to minimize the acoustic noise radiated from the actuated solenoids. It consists of a solenoid driver card which interfaces with eighty-four solenoids used to test the keys of the keyboard. A solenoid protection card is su...