Mark G Johnson

Title: Mark G Johnson: Innovator in Memory Technology

Introduction

Mark G Johnson is a notable inventor based in Sunnyvale, CA. He has made significant contributions to the field of memory technology, holding a total of 3 patents. His work has focused on improving the efficiency and functionality of memory systems.

Latest Patents

One of his latest patents is the "Redundancy selection apparatus and method for an array." This invention provides a fused decoder for selecting one or more elements of an array, such as a row of memory. The corresponding row of memory can be permanently deselected by blowing the fuse of the decoder. This innovation allows for the substitution of array components, such as a redundant row of memory, for the deselected component. The decoder is designed exclusively with NMOS transistors, which reduces the load presented to the address lines by eliminating PMOS transistors from the gate portion.

Another significant patent is the "Variable delay line phase-locked loop circuit synchronization system." This system synchronizes the operation of a CPU and coprocessor using a common clock signal. It includes a first voltage-controlled delay line that delays the clock signal by a fixed time interval for one of the CPU or coprocessor. A second voltage-controlled delay line delays the clock signal by an adjustable time interval for the other component. The adjustable delay is determined by a control signal generated from a phase-locked loop circuit.

Career Highlights

Mark G Johnson has worked with several prominent companies throughout his career. He has been associated with MIPS Computer Systems, Inc. and Thomson Components-Mostek Corporation. His experience in these organizations has contributed to his expertise in memory technology and innovation.

Collaborations

Throughout his career, Mark has collaborated with notable individuals, including Larry D Johnson and Edwin L Hudson. These collaborations have likely enriched his work and contributed to his innovative patents.

Conclusion

Mark G Johnson is a distinguished inventor whose work in memory technology has led to several important patents. His contributions continue to influence the field and demonstrate the impact of innovation in technology.