Method and Apparatus for Recording Transactions with a Portable Logging Device
First Claim
Patent Images
1. A method for authenticating an interaction comprising:
- receiving a checksum from a first device;
searching a log for an instance of the checksum using a second device; and
allowing a request if the checksum is found.
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Abstract
Method and apparatus for recording transactions with a portable logging device are described. In one embodiment, examining a first log stored on a first, portable device and a second log associated with a second device; and determining that the portable device interacted with the second device based on one or more entries in the first and second logs.
119 Citations
27 Claims
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1. A method for authenticating an interaction comprising:
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receiving a checksum from a first device; searching a log for an instance of the checksum using a second device; and allowing a request if the checksum is found. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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calculating a media identifier of media on a portable device; creating a rolling checksum using the media identifier; and sending the rolling checksum to a second device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method comprising:
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a portable device having a first log and examining entries of a second log; adding one or more entries to the second log; and including the one or more entries in the first log.
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24. A portable device comprising:
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a wireless communication interface to send information wireless; a memory to store a first log; an input unit to receive media; a processing unit coupled to add a media identifier to the first log and to cause the wireless communication interface to transmit and receive information, wherein the processing unit adds an entry to the first log, the entry including a media identifier that is based on content of media that was the subject of an interaction with second device, and further wherein the first log is entangled with a second log associated with the second device by receiving information from the second device and storing that information in the first log. - View Dependent Claims (25, 26)
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27. An article of manufacture having one or more computer-readable storage media storing instructions which, when executed by a system, cause the system to perform a method for authenticating an interaction comprising:
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examining a first log stored on a first, portable device and a second log associated with a second device; and determining that the portable device interacted with the second device based on one or more entries in the first and second logs.
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Specification