Securing electronic annotations
AssigneeHewlett-Packard Development Company, L.P.
InventorsChristopher Tofts, James Thomas Edward McDonnell
Life of this patent
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Abstract
Methods are described for securing access to an electronic annotation provided on an object. The methods include the steps of providing the object with a plurality of memory tags, providing an electronic annotation on at least one of the memory tags, and defining a sequence in which the memory tags must be accessed in order to access the annotation. A corresponding object is also described.
Claims39
A method of securing access to an electronic annotation provided on an object, comprising the steps of:
- providing the object with a plurality of memory tags;
- providing on at least one of the memory tags an electronic annotation;
- and
- defining a sequence such that the memory tags are ordered into the sequence such that access to the electronic annotation can only be achieved by accessing the memory tags in the sequence in the prescribed order.
An electronically annotated object having annotation access security comprising:
- a plurality of memory tags arranged on or in the object, at least one of the memory tags having stored therein an electronic annotation;
- and
- wherein the memory tags are ordered into a sequence such that access to the electronic annotation can only be achieved by accessing the memory tags in the sequence in the prescribed order.
A method of accessing a secured electronic annotation applied to an object, comprising the steps of:
- a) with a memory tag reader, reading from a first memory tag in a defined sequence of memory tags on the object an access code for a next memory tag in the sequence;
- b) applying the access code to the next memory tag in the sequence;
- c) reading from that memory tag an access code for a next memory tag in the sequence;
- d) repeating steps b) and c) for all memory tags in the sequence up to n−1, where n is the total number of tags in the sequence;
- e) applying the access code to the nth tag in the sequence;
- and
- f) reading the annotation from at least one of the memory tags within the sequence.
Dependencies are inferred from the claim text.