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:
Apr. 24, 2018

Filed:

Apr. 27, 2017
Applicant:

Cubic Corporation, San Diego, CA (US);

Inventors:

Gavin Smith, Crawley, GB;

Steffen Reymann, Reigate, GB;

Assignee:

Cubic Corporation, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 5/00 (2006.01); G07C 9/00 (2006.01); G06K 19/06 (2006.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
G07C 9/00087 (2013.01); G06K 19/06037 (2013.01); G06K 19/06112 (2013.01); G07C 2009/00095 (2013.01); H04W 88/02 (2013.01);
Abstract

A mobile device including a communications interface, a memory, a display screen, and a processing unit. The processing unit is configured to retrieve a first key of an asymmetric key pair. A second key of the asymmetric key pair is stored on an access control device. The processing unit is configured to generate a plurality of barcodes. Each of the barcodes includes data that is encrypted using the first key and the current date and time. At least some of the barcodes are distinct from one another. At least one of the barcodes includes access information. The processing unit is configured to sequentially display the barcodes such that only a single one of the barcodes is displayed on the display screen of the mobile device at a single time. The barcodes are read and decrypted by the access control device using the second key and the current date and time.


Find Patent Forward Citations

Smith, Gavin. (2018). 4d barcode (U.S. Patent No. 9953475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9953475

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

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