David L Christensen

Title: David L Christensen: Innovator in Haptic Technology

Introduction

David L Christensen is a prominent inventor based in Los Altos Hills, California. He has made significant contributions to the field of electronic devices, particularly in the area of haptic technology. With a total of 4 patents to his name, Christensen continues to push the boundaries of innovation.

Latest Patents

One of Christensen's latest patents is focused on electroactive polymers for electronic devices. This invention involves deformable haptic structures that enhance user interaction with electronic devices. The haptic structures provide both input and output functionalities. In one embodiment, a keyboard is designed with a housing and a keycap positioned within an opening. The keyboard incorporates a haptic structure that is coupled with both the housing and the keycap. This haptic structure consists of a compliant layer and a pair of electrodes that are separated by the compliant layer. These electrodes are configured to compress the compliant layer in response to an input signal, allowing the keycap to move relative to the housing.

Another notable patent is for a stylus with external magnetic influence. This interface system includes an electronic device with an input surface and a stylus that contains a magnetic component. The stylus is designed to provide input to the electronic device via the input surface. Additionally, a magnetic field generator is coupled to the electronic device, producing a magnetic field that imparts a force on the stylus's magnetic component.

Career Highlights

David L Christensen is currently employed at Apple Inc., where he continues to innovate and develop new technologies. His work at Apple has allowed him to be at the forefront of advancements in electronic devices and user interfaces.

Collaborations

Throughout his career, Christensen has collaborated with talented individuals such as Paul Xiaopeng Wang and Alex Joseph Lehmann. These collaborations have contributed to the development of cutting-edge technologies in the field.

Conclusion

David L Christensen is a key figure in the realm of haptic technology, with a focus on enhancing user interaction through innovative designs. His contributions at Apple Inc. and his patented inventions reflect his commitment to advancing electronic device technology.