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.:

US 7779186 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 17, 2010

Filed:

Aug. 02, 2007
Applicant:

Po-ming Chen, Taoyuan Shien, TW;

Inventor:

Po-Ming Chen, Taoyuan Shien, TW;

Assignee:

Delta Electronics, Inc., Taoyuan Shien, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A master-slave card system includes a master card and a plurality of slave cards connected in serial. The master card sends a command with a station-number information to the slave cards. A selected slave card designated by the station-number information sends back a response message, where the response message includes an initial packet, a plurality of data packets and a CRC check packet. The master card sends a next command to a next slave cards after the master cards identifies a correct initial packet. When the initial packet is not correct, the master card halts sending the next command until the received signal is already stopped for a predetermined silence time. The master card drops all the data packets if the CRC check packet associated with the data packet is not correct.


Find Patent Forward Citations

Chen, Po-Ming. (2010). Master-slave card system and method for operating the same (U.S. Patent No. 7779186). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7779186

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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