Browse Prior Art Database

Automated Typewriter Keyboard Tester

IP.com Disclosure Number: IPCOM000043061D
Original Publication Date: 1984-Jul-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Duffy, DD: AUTHOR [+3]

Abstract

In the typewriter keyboard tester, key button testing, point plotting and data interpretation by manual methods were too slow and subject to human introduced errors. Automation of the test and analysis removed the errors and increased productivity. The automatic tester combines a robot system, special fixtures, special hardware logic, a processor, an RLC bridge, and a special linear actuator. The basic system is shown in the figure, which is keyed to the description that follows. The AML (Advanced Manufacturing Language) application 10 provides arm positioning linear actuator commands, test commands, retrieval of test data, logging of test data, and real-time evaluation of test data. The command and control unit 12 contains unique hardware to interface between the robot system 13 and the other units within the system.

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Automated Typewriter Keyboard Tester

In the typewriter keyboard tester, key button testing, point plotting and data interpretation by manual methods were too slow and subject to human introduced errors. Automation of the test and analysis removed the errors and increased productivity. The automatic tester combines a robot system, special fixtures, special hardware logic, a processor, an RLC bridge, and a special linear actuator. The basic system is shown in the figure, which is keyed to the description that follows. The AML (Advanced Manufacturing Language) application 10 provides arm positioning linear actuator commands, test commands, retrieval of test data, logging of test data, and real-time evaluation of test data. The command and control unit 12 contains unique hardware to interface between the robot system 13 and the other units within the system. Commands, handshaking, linear motor control interface, force transducer interface, and processor interface are all within this unit. The motor control 14 is a device controller which provides position and speed information to the linear motor 16 and receives position feedback from the linear motor. The processor 18 provides data conversion and communications between the IBM Series/1 and the RLC tester 20. The RLC tester interfaces to the keyboard 22 under test via a coaxial relay and relay matrix. The tester 20 is used to obtain capacitive information about the particular key tested. The total system provides aut...