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:
Sep. 09, 2014
Filed:
May. 18, 2011
Applicant:
Thomas Ray Shelburne, Novi, MI (US);
Inventor:
Thomas Ray Shelburne, Novi, MI (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/12 (2006.01); H04L 27/156 (2006.01); H03D 3/00 (2006.01);
U.S. Cl.
CPC ...
H04L 27/12 (2013.01); H04L 27/122 (2013.01);
Abstract
One embodiment of the present invention relates to a communications system. The system includes a Highway-Addressable Remote Transducer (HART) transmitter comprising a direct memory access (DMA) module configured to access at least one transmitter lookup table (LUT) using DMA transfers to modulate a HART data packet into a frequency-shift keying (FSK) data signal. The system also includes a HART receiver configured to demodulate a received FSK data signal into a demodulated HART data packet.