Jack K Keller

Title: Jack K Keller: Innovator in Logic Buffer Circuits

Introduction

Jack K Keller is a notable inventor based in Macungie, PA (US). He is recognized for his contributions to the field of electronics, particularly in the development of innovative circuit designs. His work has had a significant impact on the efficiency and functionality of electronic devices.

Latest Patents

Keller holds a patent for the Tri-state logic buffer circuit. This invention features a first MOS (metal-oxide-semiconductor) NOR-gate device that feeds into a second MOS NOR-gate device, which in turn feeds an MOS output load device. The design yields a three-output level buffer circuit, allowing the output to a common data bus line to be 'high' ('1'), 'low' ('0'), or of very high impedance ('floating'). Each NOR-gate incorporates a low beta ('load') depletion mode type of MOS transistor and a high beta ('driver') enhancement mode type of MOS. The output load device consists of an output driver enhancement mode type of MOS transistor and an output load MOS transistor, which has a threshold intermediate between the depletion mode and enhancement mode types. This innovative design requires only a single voltage source, typically about +5 volts, to power the buffer circuit completely.

Career Highlights

Jack K Keller has made significant strides in his career while working at Bell Telephone Laboratories. His work has contributed to advancements in integrated circuit technology, particularly in the area of logic circuits. His innovative designs have paved the way for more efficient electronic systems.

Collaborations

Keller has collaborated with Gilbert L Mowery, Jr., a fellow inventor, to further enhance the development of electronic circuits. Their partnership has led to advancements in the field, showcasing the importance of teamwork in innovation.

Conclusion

Jack K Keller's contributions to the field of electronics, particularly through his patent for the Tri-state logic buffer circuit, highlight his innovative spirit and dedication to advancing technology. His work continues to influence the design of modern electronic devices.