06469633 is referenced by 315 patents.

An apparatus controls electronic devices, via radio frequency (RF) transmitter and receiver for communication between the apparatus and a user, a central processing unit (CPU) executing software for handling the conversion of an RF signal from the user into a two dimensional location (an X, Y coordinate system) and conversion into a series of remote control commands for transmission to a series of devices equipped for remote control. The user can control the electronic devices of an electronic system, for example a home entertainment system (which might include, by way of example, a television, a DSS or satellite receiver, a CD player, a video recorder, a video disc player, a radio tuner, an amplifier, a tape deck, an audio video preamplifier or a combination of one or more of the foregoing). The CPU also executes software which digitizes real time video and combines it with computer graphics for display.

Title
Remote control of electronic devices
Application Number
9/2721
Publication Number
6469633 (B1)
Application Date
January 5, 1998
Publication Date
October 22, 2002
Inventor
Martin Richard Wachter
Baltimore
MD, US
Assignee
Openglobe
IN, US
IPC
G08C 19/00
View Original Source