Company Filing History:
Years Active: 1994-1996
Title: Innovations of William R. Davis
Introduction
William R. Davis is a notable inventor based in Clearwater, FL (US). He has made significant contributions to the field of communication technology, holding 2 patents that showcase his innovative approach to simultaneous analog and digital communication.
Latest Patents
One of his latest patents is titled "Simultaneous Analog and Digital Communication Applications." This invention outlines various arrangements and methods that enable concurrent communication of both analog and digital information. In essence, when the communication channel is perceived as a multi-dimensional space, the digital information signal is divided into symbols. These symbols are then mapped onto the signal space with a predetermined distance between them. The analog signal, typically limited in magnitude to less than half the distance separating the symbols, is converted into component signals and added to the symbols through vector addition. The resulting sum signal is transmitted to the receiver, where the symbols are detected and subtracted from the received signal to reconstruct the analog signal components. This innovative approach allows systems with a digital port to benefit from an analog communication channel and vice versa.
Another significant patent by Davis is the "Command and Control Signalling Method and Apparatus." This invention describes a local communication apparatus, such as a modem, that can detect when a remote communication apparatus wishes to switch from data mode to command/control mode. To facilitate this mode switching, the remote apparatus sends a scrambled escape pattern over the data channel. Upon detecting this escape pattern, the local apparatus transitions to command/control mode, allowing for communication using a proprietary scrambler/descrambler polynomial.
Career Highlights
William R. Davis is currently employed at AT&T Corp., where he continues to develop innovative communication technologies. His work has significantly impacted the way analog and digital signals are processed and transmitted.
Collaborations
Davis has collaborated with notable colleagues, including Stanley Bottoms and Gordon F. Bremer, contributing to advancements in communication systems.
Conclusion
William R. Davis is a distinguished inventor whose work in communication technology has led to groundbreaking patents. His innovative methods for simultaneous analog and digital communication continue to influence the industry.