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.

Date of Patent:
Nov. 08, 2011

Filed:

Jun. 30, 2006
Applicants:

Michael B. Druke, Half Moon Bay, CA (US);

Christopher J. Jacques, Mountain View, CA (US);

Inventors:

Michael B. Druke, Half Moon Bay, CA (US);

Christopher J. Jacques, Mountain View, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); G05B 19/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A data packet is provided that includes a synchronization field and an acknowledgement field indicative of an acknowledgement of receipt of a prior data packet. The data packet also includes a response field that includes information indicative of a system fault, a header field, and a sequence number field that includes a number assigned to the data packet. The data packet further includes a data field, an end of packet field, and an error-checking field. Methods and computer program products are provided that, in some implementations, include retransmitting packets if the acknowledgement field in a received data packet is a no acknowledgement (NAK) and/or placing a node into a safe state in response to a fault signal that is included in the received data packet.

Published as:
US2007147385A1; FR2895619A1; DE102006059377A1; WO2008005054A2; KR20080078051A; EP1966958A2; WO2008005054A3; US8054752B2; EP1966958A4; US2012039162A1; KR101336005B1; US8838270B2; EP1966958B1;

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