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. 14, 1993
Filed:
May. 20, 1992
Applicant:
Inventor:
Gene H Olson, Minneapolis, MN (US);
Assignee:
Rosemount Inc., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
371 32 ; 370 60 ;
Abstract
A plurality of message packets are individually acknowledged in a communications network. The acknowledgement includes multiple types of status information including ACK, NAK and BUSY. Each message packet is assigned a sequence number. Acknowledgements are sent in response to receiving a message packet and include status information for the last message packet received along with status information for the seven message packets previously received. If after a timeout period expires and no message packets have been received, a status inquiry message is transmitted.