Company Filing History:
Years Active: 1976-1985
Title: John Frederick Jarvis: Innovator in Pressure Sensing and Display Technology
Introduction
John Frederick Jarvis is a notable inventor based in Fair Haven, NJ (US). He holds 2 patents that showcase his contributions to the fields of pressure sensing and display technology. His innovative work has had a significant impact on various technological advancements.
Latest Patents
One of Jarvis's latest patents is the Analog Integrated Circuit Pressure Sensor. This invention proposes an integrated array of pressure transducers capable of producing an analog output voltage representative of the applied pressure. The individual transducing elements are defined by a three-layer structure, including a thin layer of piezoelectric material disposed between a reference potential plate and a plurality of electrodes contained in a silicon substrate. A force applied to a localized portion of the reference plate causes a deflection of the piezoelectric material towards the electrodes on the substrate, inducing a capacitive charge on the electrode in the localized area. This capacitance is stored at a node associated with the transducing element and can be interrogated by a sensing circuit located in the silicon substrate. Since the induced charge is directly proportional to the applied force, measuring the output voltage from the node yields a direct indication of the localized force applied to the sensor.
Another significant patent is the Bi-Level Display System. This system allows continuous tone images to be displayed on a bi-level display device by establishing thresholds for each display element. A particular element is actuated when its intensity bears a predetermined relationship to the established threshold. The thresholds are determined by calculating the average intensity of picture elements in the neighborhood of a particular display element and constraining the average to a narrower range according to a single value function of intensity.
Career Highlights
Throughout his career, John Frederick Jarvis has worked with prestigious organizations such as AT&T Bell Laboratories and Bell Telephone Laboratories. His experience in these companies has contributed to his expertise in developing innovative technologies.
Collaborations
Jarvis has collaborated with notable individuals in the field, including Robert G. Swartz and Bruce A. Wooley. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
John Frederick Jarvis is a distinguished inventor whose work in pressure sensing and display technology has made a lasting impact. His patents reflect his innovative spirit and dedication to advancing technology.