Patent ID: 9047715
Filing Date: 2015-06-02
Classification: G07C

Abstract:
1. A non transitory computer-readable storage medium encoded with computer-executable instructions which, when executed by a processor, perform a method for configuring a portable electronic device as part of a credential management system, comprising: associating at a credential administration server, a first portable electronic device, identifiable by a unique identifier, with a first user and at least one of a location or a service subject to access restrictions; obtaining first visual symbol information, at the credential administration server, for use by the first portable electronic device in iniating display of a first machine discernable image to be presented as an access credential by the first user during a first specified time interval, the first time interval being specified to have a duration of between 30 to 6000 seconds; for visible display of the first machine discernable image by the first portable device during the first time interval, initiating wireless transmission of the obtained first visual symbol information to the first portable electronic device; obtaining second visual symbol information, at the credential administration server, for use by the first portable electronic device in initiating display of a second machine discernable image to be presented as an access credential by the first user during a second specified time interval, the second time interval being specified to have a duration of between 30 to 6000 seconds; and for visible display of the second machine discernable image by the first portable electronic device upon expiration of the first time interval, initiating wireless transmission of the obtained second visual symbol information to the first portable electronic device.