Company Filing History:
2 out of 2 
1 out of 52 
Years Active: 2004-2007
Title: Innovations by Christopher R Wren
Introduction
Christopher R Wren is an accomplished inventor based in Cambridge, MA (US). He holds a total of 3 patents that showcase his expertise in the field of technology and communications. His innovative approaches have contributed significantly to advancements in user presence detection and computer vision.
Latest Patents
One of his notable patents is titled "Methods of establishing a communications link using perceptual sensing of a user's presence." This method utilizes automatic sensing of a computer user's presence and activity state to record user attributes in a form accessible to other computers in a communications network. The technology employs various sensing methods, including keyboard/mouse monitors, cameras with image processing algorithms, speech detectors, RF radiation detectors, and infrared sensors. This innovation has practical applications, such as informing remote parties about a user's availability for calls and allowing users to adjust notification preferences based on their current activities.
Another significant patent is "Computer vision depth segmentation using virtual surface." This invention identifies the location of an object in a physical scene using a stereo camera. It constructs an approximate disparity set for a virtual surface and processes images to determine depth residual values. This technology enhances object recognition and depth perception in various applications.
Career Highlights
Christopher has worked with several prominent companies, including Perceptive Network Technologies, Inc. and Mitsubishi Electric Research Labs. His contributions in these roles have furthered the development of innovative technologies in the field.
Collaborations
Throughout his career, Christopher has collaborated with notable professionals, including Julian L Center and Yuri A Ivanov. These partnerships have enriched his work and led to significant advancements in his projects.
Conclusion
Christopher R Wren's contributions to technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative methods continue to influence advancements in communications and computer vision.