Abstract: The universal remote control system includes input means, signal output means for supplying a signal to a controlled device and a central processing unit coupled to the input means and the signal output means, no ROM, and a single non-volatile, read-write RAM coupled to said central processing unit.The RAM in the ROM-less microprocessor system is loaded by carryout out the following steps: (a) disabling the central processing unit; (b) connecting a separate microprocessor system to said RAM; (c) transferring instructions and/or data to said RAM; (d) re-enabling the central processing unit to enable the central processing unit to execute the instructions so transferred.
Type:
Grant
Filed:
June 13, 1997
Date of Patent:
September 28, 1999
Assignee:
Universal Electronics Inc.
Inventors:
Paul V. Darbee, Richard E. Ellis, Louis Steven Jansky, Avram S. Grossman