An interactive communication device

Details An interactive communication device An interactive communication device

H - Electricity

04

M

H04M 11/06 (2006.01)

Patent

CA 2119381

2119381 9306686 PCTABS00021 Two devices are connected via a single analogue signal path such as a public telephone line in such a manner as to permit the users to talk to each other while interactively modifying an image which is presented to both users simultaneously. Each device multiplexes a reduced voice signal, e.g. from a vocoder (3), with a control signal indicative of changes to make to the image, and transmits the composite signal via a modem (4). The devices either respond to both image signals to modify the image (e.g. if they are word processors responding to key presses) or to the same selected one of the signals as determined by a protocol (e.g. if a spreadsheet is being altered by only one user at a time). Each device may be stand alone, such as incorporating a computer or facsimile machine, or an adaptor for existing such machines; it may be inserted between a telephone set and the line, or have separate audio transducers and connect to the line via a telephone set.

Affiliated with

Also associated with

Rating

An interactive communication device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1497704