James K Kroeger

Title: Innovations of James K Kroeger

Introduction

James K Kroeger is an accomplished inventor based in South Orange, NJ (US). He holds 2 patents that showcase his expertise in electronic circuits and battery technology. His innovative contributions have made a significant impact in the fields of liquid crystal displays and battery charging systems.

Latest Patents

One of his latest patents is a Non-multiplexed LCD drive circuit. This invention comprises a recirculating shift register that has serial input and output terminals for receiving and generating binary data in bit serial format. The circuit includes a plurality of intermediate parallel output terminals for coupling display data to a liquid crystal display (LCD). The display data are loaded into the shift register during a display update mode and recirculated for display by the LCD during a data refresh mode. To minimize DC buildup on the LCD, data inversion is provided in the feedback loop, causing periodic polarity reversal of data during recirculation. Additionally, a shift register reset circuit monitors the continuity of data being supplied to the LCD for display, resetting the shift register in response to discontinuities in input data flow.

Another notable patent is a hysteresis type battery charger with output short circuit protection. This charger includes a circuit for monitoring battery voltage and controlling a pass transistor to supply charging current to a battery. When the battery voltage is below a first predetermined value, high charging rate current is supplied. Conversely, when the battery voltage exceeds a second predetermined value, the battery receives trickle charging current. The charger features light-emitting diodes (LEDs) that indicate whether the battery is receiving high charging rate current or trickle charging current. Furthermore, the battery charger includes a low battery monitor that activates when the expected battery lifetime reaches a predetermined value.

Career Highlights

Throughout his career, James K Kroeger has worked with various companies, including Sangamo Weston, Inc. His experience in the industry has allowed him to develop innovative solutions that address real-world challenges in electronics and battery management.

Collaborations

James has collaborated with notable individuals such as Philip Emile, Jr. and John P Berting. These partnerships have contributed to the advancement of his inventions and the successful implementation of his ideas.

Conclusion

James K Kroeger is a distinguished inventor whose work in electronic circuits and battery technology has led to significant advancements. His patents reflect his commitment to