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. 20, 2011
Filed:
Jun. 28, 2010
David R. Powers, La Jolla, CA (US);
Donald H. Warf, Dulles, VA (US);
Daniel Bertuna, Fairfax Station, VA (US);
Walter C. Bonneau, Jr., Escondido, CA (US);
David K. Aberizk, San Diego, CA (US);
Keith L. Frankie, San Diego, CA (US);
Stuart J. Waddell, El Cajon, CA (US);
David R. Powers, La Jolla, CA (US);
Donald H. Warf, Dulles, VA (US);
Daniel Bertuna, Fairfax Station, VA (US);
Walter C. Bonneau, Jr., Escondido, CA (US);
David K. Aberizk, San Diego, CA (US);
Keith L. Frankie, San Diego, CA (US);
Stuart J. Waddell, El Cajon, CA (US);
Cubic Corporation, San Diego, CA (US);
Abstract
A lock mechanism to lock at least one door of a container in a closed position includes a housing enclosing at least a portion of the lock mechanism, and a lock circuit at least partially enclosed within the housing. The lock circuit includes a main power supply, a backup power supply, a plurality of subsystems, and a lock controller coupled to the main power supply and the backup power supply. The lock controller is configured to receive commands related to operation of the lock mechanism, determine a battery level remaining in the main power supply, determine if the remaining battery level is below a threshold level, and cause the lock circuit to enter a lower power mode upon determining that the remaining battery level is below the threshold level. When in the lower power mode, at least a portion of the subsystems of the lock circuit are not powered, the lock controller receives power from the main power supply, and the lock controller monitors an interface to detect a command to unlock the lock mechanism.