The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 1999
Filed:
Nov. 19, 1996
David Sokoler, Colts Neck, NJ (US);
Carlton J Hunt, Howell, NJ (US);
John E Montague, Columbia, SC (US);
NCR Corporation, Dayton, OH (US);
Abstract
In jamming the data field of a data frame being transmitted at a sending end, a CRC error is caused at a receiving end. To instead avoid such CRC error, a section of bits is inserted into the data frame, so that CRC based on the section of bits is forced to a constant bit pattern. From that point on, all the bits transmitted will be jammed to the constant CRC bit pattern. Thus, any appropriate number of bits (assuming it is at least 32 bits) after that section is the correct CRC based on the jammed data frame. Advantageously, after detecting the ending flag of the jammed data frame, the last 32 bits of the jammed data frame will be the correct CRC at a receiving end.