Patents by Inventor Daniel Sazbon-Natansohn

Daniel Sazbon-Natansohn 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).

  • Method for storing the control code of a processor allowing effective code modification and addressing circuit therefor
    Patent number: 4751703
    Abstract: A method for storing the control code of a processor in a read only memory ROM (5) and in a read/write memory RAM (7) comprising a code area and a patch area. It consists in virtually dividing the control code in blocks of n instructions, storing the first instruction of each block into the code area of the read/write memory, and storing the n-1 following instructions of each block in the read only memory ROM. When an error is detected in at least one block, the first instruction of said block normally stored in the read/write RAM, is replaced by a branch instruction containing a branch address value so as to point to the patch area where the corrected block is stored.This method is implemented using a specific addressing circuit.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: June 14, 1988
    Assignee: International Business Machines Corp.
    Inventors: Joaquin Picon, Clement Y. G. Poiraud, Daniel Sazbon-Natansohn