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:
Aug. 08, 2000

Filed:

Jun. 29, 1998
Applicant:
Inventors:

Scott B Guthery, Redmond, WA (US);

Michael A Montgomery, Austin, TX (US);

Assignee:

Schlumberger Malco, Inc., Owings Mills, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235492 ; 235487 ;
Abstract

Smart (integrated circuit) card supervisory control and data acquisition. Industrial processes may be controlled by one or more smart cards. Signals may be received from an industrial process by the smart card, the signals may be processed by the smart card, and control signals may be sent from the smart card to the industrial process in response to the processed signals. The smart card may provide security/tamper resistance for proprietary information associated with the industrial process. Control of the industrial process may be distributed among one or more smart cards at particular process points to receive sensed process parameters and to send control signals to implement process actions.


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