Patents by Inventor Boris Ruvinsky

Boris Ruvinsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6489937
    Abstract: An LED matrix control system using a plurality of FPGAs (Field Programmable Gate Array) in between a CPU and a LED matrix. One FPGA controls a first set of LED's and a second FPGA controls a second set of LED's. The first FPGA controls all of the column lines of an LED matrix, and controls a sub set of the row lines of the LED matrix. The second FPGA also controls all of the column lines and controls another sub set of the row lines. Each FPGA receives the same information from the CPU. Each FPGA also has a config line. The config line of one FPGA is connected to a logical zero, and the config line of the other FPGA is connected to a logical one. Each FPGA only enables or energizes one row at a time. The rows are energized on and off so quickly, that the human persistence of vision causes the appearance of the energized LED's to always appear lit.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: December 3, 2002
    Assignee: 3Com Corporation
    Inventor: Boris Ruvinsky