Jason A Christianson

Title: Innovations by Jason A Christianson

Introduction

Jason A Christianson is a notable inventor based in Apple Valley, MN (US). He has made significant contributions to the field of data storage technology, holding a total of 3 patents. His work primarily focuses on enhancing the performance and reliability of disk drive systems.

Latest Patents

One of his latest patents is titled "Apparatus and method for controlling common mode voltage of a disk drive write head." This invention provides a method for controlling the common mode voltage across a data storage device write head. The write current is supplied by a first plurality of parallel current sources, each independently activated to limit the common mode voltage generated across the write head. Additionally, a plurality of parallel resistive elements, responsive to current supplied by a second plurality of parallel current sources, bias an output transistor that further controls the write current. Each of these elements is also independently activated to limit the common mode voltage generated across the write head.

Another significant patent is "Method and apparatus for protecting magnetoresistive heads from electrostatic discharge." This invention offers a solution for providing electrostatic discharge protection for a disc drive read head. It utilizes a pair of depletion mode MOSFETS and a fuse associated with each, disposed between the read head output terminals. The MOSFETS are controlled to an 'off' state for testing the preamplifier prior to assembly of the read head. After assembly, a second pair of MOSFETS is gated to an 'on' state to open the fuses, allowing normal operation of the read head.

Career Highlights

Jason A Christianson is currently employed at Agere Systems Inc., where he continues to innovate in the field of data storage technology. His work has been instrumental in advancing the capabilities of disk drives, making them more efficient and reliable.

Collaborations

Throughout his career, Jason has collaborated with talented individuals such as Michael John O'Brien and Cameron Carroll Rabe. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Jason A Christianson is a prominent inventor whose work has significantly impacted the field of data storage technology. His innovative patents demonstrate his commitment to enhancing the performance and reliability of disk drives.