1
Mark A Lucak, Jonathon R Engdahl, Michael T Klein: Intelligent network interface circuit. Allen Bradley Company, Quarles & Brady, October 6, 1992: US05153884 (50 worldwide citation)

An interface circuit couples a host processor in an industrial control system to a local area communications network. In includes a protocol machine for receiving and transmitting messages on the network and an interface controller which is programmed to implement one or more protocols. As a message ...


2
Michael T Klein, William Perry Su, Richard Leroy Mahn, Per Ola Gustav Forsgren: Online programming changes for industrial logic controllers. Steeplechase Software, Rader Fishman & Grauer PLLC, October 19, 1999: US05970243 (38 worldwide citation)

A digital computer implemented software system is provided for enabling on-line programming changes of industrial logic controllers using a software package of the type utilizing graphical flowcharts is provided, allowing a user to modify a program and transfer industrial process state information w ...


3
Michael T Klein, William Perry Su, Richard Leroy Mahn, Per Ola Gustav Forsgren: Animation of execution history. Steeplechase Software, Rader Fishman & Grauer PLLC, May 2, 2000: US06058333 (11 worldwide citation)

A digital computer implemented software system is provided which translates a control program into a graphical flow chart and displays the same upon a visual display attached to the digital computer during execution of a control program. The graphical flow chart includes multiple flow paths of execu ...


4
Michael T Klein, William Perry Su, Richard Leroy Mahn, Per Ola Gustav Forsgren: Extended relay ladder logic for programmable logic controllers. Steeplechase Software, Rader Fishman & Grauer PLLC, October 5, 1999: US05963446 (7 worldwide citation)

A digital computer implemented software system is provided for programming industrial logic controllers using a software package of the type utilizing relay ladder logic to represent control programs. The control program is executable by the controller to control the operation of one or more industr ...


5
Michael T Klein, Donald J Voss: Phase-coherent demodulation clock and data recovery. Motorola, Dale E Jepsen, September 15, 1987: US04694257 (5 worldwide citation)

A circuit and method for demodulation of transmitted phase-coherent signals including recovery of the clock and data signals associated therewith. A clock recovery circuit detects a zero crossing of the transmitted signal which occurs every one-half period of the lowest frequency transmitted signal. ...


6
Michael T Klein, Don C Stokes: Diagnostic software for facilitating flowchart programming. Steeplechase Software, Rader Fishman & Grauer PLLC, August 14, 2001: US06275955 (4 worldwide citation)

A digital computer implemented software system is provided that translates a graphical flow chart into a control program and displays the same upon a visual display attached to the digital computer during execution of a control program. The graphic flow chart includes a diagnostic decision block for ...