Other

Polaroid Corporation

Advanced Mechanical Technology, Inc.

Joseph F Deck

Bradley L Hunter

Bruce K Johnson

George D Whiteside

Michael B Nussbaum

Bruce F White

Philip D Chapnik

Steven D Owen

The present invention relates to joint simulators, and in particular, to methods and systems for controlling joint simulators by using a haptic mapping technique. A joint simulator is used to closely approximate the conditions within the body, particularly with respect to human and animal joints, and can be used to test and evaluate prosthetics for use in various parts of a human or animal body. The haptic mapping technique improves the rate of convergence of the actual testing forces to the prescribed forces during repetitive performance and life testing. The method is used in conjunction with an impedance-mode servo controller.

System and method for joint testing

An electronic assembly including a first heat producing device mounted on a first outer surface of a first portion of a circuit board. The first portion can deflect upwardly and downwardly relative to other portions of the circuit board. A first force element urges the first heat producing device against a heat sink. The force exerted by the first force element is variable with respect to time.

Electronic assembly cooling

The present invention provides in one aspect, a method of controlling a SLM comprising the following steps: providing a sequential color SLM controller, and a SLM; providing a means whereby said sequential color SLM controller loads optimum values for a single color into control registers of said SLM, during all the field time slots of each video frame; also causing said SLM to modulate light of said single color, during said field time slots of each video frame, whereby the duty cycle for display of said color is increased relative to operation in a normal sequential color mode. Another aspect of the present invention is an apparatus for controlling a SLM comprising a single color SLM controller, a SLM, and a means for causing said single color SLM controller to load optimum values for a single color into control registers of said SLM during all the field time slots of each video frame; wherein said SLM is caused to modulate light of said single color, during said field time slots of each video frame, whereby the duty cycle for display of said color is increased relative to operation with a sequential color SLM controller in a sequential color mode. Another aspect of the current invention is a method for controlling a sequential color SLM with programmable grayscale characteristics comprising providing a programmable grayscale SLM; and programming the grayscale characteristic of said SLM to implement a grayscale characteristic that is adapted for printing onto photosensitive medium.

System for printing with programmable spatial light modulator and method

Growing community of inventors

Somerville, MA, United States of America

Joseph F Deck