EHF Secure Communication Device
First Claim
1. A data communication device comprising:
- a communication interface unit comprising;
a transmitter unit configured to transmit data using close proximity extremely high frequency (EHF) electromagnetic energy to a computing device over a first transmission patha receiver unit configured to receive data from the computing device over a second transmission path; and
an interface control circuit coupled to the transmitter unit and the receiver unit, and configured to;
detect identifying information from an EHF transmission transmitted by a computing device,detect training and capability information from an EHF transmission transmitted by the computing device,evaluate one or more attributes of the detected training and the detected capability information, anddetermine whether to establish a communication link over the first and the second paths with the computing device based on the evaluation.
5 Assignments
0 Petitions
Accused Products
Abstract
A communication device employs a contactless secure communication interface to transmit and receive data with a computing device using close proximity extremely high frequency (EHF) communication. The communication device and the computing device periodically initiate a discovery operation mode, whereby the devices periodically transmit identifying information about the respective devices and listen for identifying information from the other device. Upon completion of the discovery mode operation, the devices enter a link-training operation mode and exchange capability information about the respective devices. During transport mode operation the communication device employs methods to manage access to data stored on the communication device by encrypting the data using one or a combination of training information or capability information as a basis for generating an encryption key.
25 Citations
26 Claims
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1. A data communication device comprising:
a communication interface unit comprising; a transmitter unit configured to transmit data using close proximity extremely high frequency (EHF) electromagnetic energy to a computing device over a first transmission path a receiver unit configured to receive data from the computing device over a second transmission path; and an interface control circuit coupled to the transmitter unit and the receiver unit, and configured to; detect identifying information from an EHF transmission transmitted by a computing device, detect training and capability information from an EHF transmission transmitted by the computing device, evaluate one or more attributes of the detected training and the detected capability information, and determine whether to establish a communication link over the first and the second paths with the computing device based on the evaluation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of regulating access to information located on a communication device, the method comprising:
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generating, by an EHF transmitting device included in the communication device, training information, the training information specifying a data pattern used by a receiving device to select receiving device settings to exchange information over a transmission path; receiving from the receiving device a training completion message indicating that the training information was received by the receiving device; responsive to receiving training completion message, sending capability information about the transmitting device; receiving a capability match message from the receiving device; and generating an encryption key using one or more of capability information, or one or more attributes of the training information. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of regulating access to information located on a communication device, the method comprising:
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receiving from an EHF transmitting device training information, the training information specifying a data pattern used by a receiving device to select receiving device settings to exchange information with the transmitting device over a transmission path; sending by the receiving device a training completion message indicating that the training information was received by the receiving device; responsive to sending the training completion message, receiving capability information about the transmitting device; comparing the received capability information with receiving device capability information; sending a capability match message to the transmitting device responsive to a positive comparison result; and generating an encryption key using one or more of capability information, or one or more attributes of the training information. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification