Patents by Inventor Ariel Ish-Shalom

Ariel Ish-Shalom 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: 5325372
    Abstract: In accordance with the present invention, a multi-bit CRC character is created by generating a most significant bit (MSB) portion and a least significant bit (LSB) portion in parallel and then combining the MSB and LSB portions to provide the CRC character. This is accomplished by first XORing a multi-bit input character and a current multi-bit CRC high value character stored in a CRC high value latch. The result of this initial XOR operation serves as the input to a high value look-up table which maps the input to a corresponding high value look-up table output character. The value look-up table output character is XORed with a current multi-bit CRC low value character stored in a CRC low value latch to generate an updated CRC high value character. In parallel with the generation of the updated CRC high value character, the result of the initial XOR operation is also provided as the input to a low value look-up table which maps the input to a corresponding updated CRC low value character.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: June 28, 1994
    Assignee: National Semiconductor Corporation
    Inventor: Ariel Ish-Shalom