Simultaneous analog and digital communication

Details Simultaneous analog and digital communication Simultaneous analog and digital communication

H - Electricity

04

L

H04L 27/34 (2006.01) H04J 7/00 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2125053

22 CONTROLLLED SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATION Abstract A method and apparatus for control of concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them. The analog signal, generally limited in magnitude to less than the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Both half-duplex and full-duplex operation is available in accordance with this invention. The illustrative embodiment includes control means that is sensitive to input signals applied to the modem disclosed herein. To wit, the control is sensitive to signals from the analog port, signals from the digital port, and signals from the port that carries the combined digital and analog signals. Operation of the near-end modem is controlled as well as operation of the far-end modem.

Affiliated with

Also associated with

Rating

Simultaneous analog and digital communication does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Simultaneous analog and digital communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous analog and digital communication will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1448938