Hybrid device having a personal digital key and receiver-decoder circuit and methods of use
First Claim
1. A hybrid device for use in a proximity system, the hybrid device comprising:
- a first personal digital key (PDK) for storing information and capable of communicating wirelessly, the PDK for linking with at least one external receiver-decoder circuit (RDC); and
a receiver-decoder circuit (RDC) for linking with at least one external PDKs, the RDC capable of communicating wirelessly with the external PDK, the RDC coupled to the PDK by a first signal line and coupled for communication with the first PDK, the RDC coupled to a second signal line for communicating and enabling an external device.
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Accused Products
Abstract
A hybrid device includes a personal digital key (PDK) and a receiver-decoder circuit (RDC). The PDK and RDC of the hybrid device are coupled for communication with each other. In one embodiment, the hybrid device also provides a physical interconnect for connecting to other devices to send and receive control signals and data, and receive power. The hybrid device operates in one of several modes including, PDK only, RDC only, or PDK and RDC. This allows a variety of system configurations for mixed operation including: PDK/RDC, RDC/RDC or PDK/PDK. The present invention also includes a number of system configurations for use of the hybrid device including: use of the hybrid device in a cell phone; simultaneous use of the PDK and the RDC functionality of hybrid device; use of multiple links of hybrid device to generate an authorization signal, use of multiple PDK links to the hybrid device to generate an authorization signal; and use of the hybrid device for authorization inheritance.
146 Citations
25 Claims
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1. A hybrid device for use in a proximity system, the hybrid device comprising:
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a first personal digital key (PDK) for storing information and capable of communicating wirelessly, the PDK for linking with at least one external receiver-decoder circuit (RDC); and a receiver-decoder circuit (RDC) for linking with at least one external PDKs, the RDC capable of communicating wirelessly with the external PDK, the RDC coupled to the PDK by a first signal line and coupled for communication with the first PDK, the RDC coupled to a second signal line for communicating and enabling an external device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of using a hybrid device having an receiver-decoder circuit (RDC) and a personal digital key (PDK) to control access to a system, the method comprising:
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creating a first wireless link between the receiver-decoder circuit of the hybrid device and an external personal digital key (PDK); receiving a first authorization signal at the RDC via the first wireless link from the PDK; enabling a second wireless link between the PDK of the hybrid device and an external RDC; generating an enablement signal with the RDC; and sending the enablement signal to the system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification