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:
Aug. 11, 2015
Filed:
Dec. 20, 2011
Srivatsan Kasturi, Saratoga, CA (US);
G. Alagiri, San Jose, CA (US);
Vinod Nagarajan, Saratoga, CA (US);
Rajah Kalipatnapu, San Jose, CA (US);
Darrell Fongson, Saratoga, CA (US);
Srivatsan Kasturi, Saratoga, CA (US);
G. Alagiri, San Jose, CA (US);
Vinod Nagarajan, Saratoga, CA (US);
Rajah Kalipatnapu, San Jose, CA (US);
Darrell Fongson, Saratoga, CA (US);
Mist Silicon Limited Liability Company, Wilmington, DE (US);
Abstract
Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.g., BCD formatted data. The information is wrapped in one or more packets by a sending apparatus, each packet including one or more headers, such as a Name and Length field that identify the information being exchanged and the amount of data included in the packet payload/value field. The data in the packets are converted from BCD to DTMF signals and are transmitted over a telephone communication line to a receiving apparatus. The receiving apparatus converts the DTMF signals back to BCD formatted data and processes the packets to obtain the information contained therein.