Method for controlling access to recorded data
First Claim
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1. A visual display system for aiding pilots comprising:
- a data storage medium encoded with a data base indicative of a multiplicity of flight related visual displays;
a code provided on a separate medium applied to a surface of said data storage medium, the code identifying a subset of said data base to which user access is to be restricted;
reading means for reading said code and said data base from said record storage medium;
display means for reading said code and said data base from said record storage medium;
display means generating visula displays; and
access controller means operatively disposed between said reading means and said display means and responsive to said code for restricting said visual displays to ones identified by said code.
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Abstract
Access to a complete data base stored on optical disk media is limited to portions of the data base to which individual users are entitled by provision of an additional code on the optical disk, indicating the portions of the data base which the customers may access. The disk reader comprises an additional reader for reading the additional code and means for preventing access to other portions of the data base. The additional code may be conventional bar code.
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Citations
28 Claims
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1. A visual display system for aiding pilots comprising:
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a data storage medium encoded with a data base indicative of a multiplicity of flight related visual displays; a code provided on a separate medium applied to a surface of said data storage medium, the code identifying a subset of said data base to which user access is to be restricted; reading means for reading said code and said data base from said record storage medium; display means for reading said code and said data base from said record storage medium; display means generating visula displays; and access controller means operatively disposed between said reading means and said display means and responsive to said code for restricting said visual displays to ones identified by said code. - View Dependent Claims (2, 3, 11)
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4. A method for generating visual displays to aid pilots comprising the steps of:
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encoding a data storage medium with a data base representing a multiplicity of flight related visual displays; providing a machine readable code on a medium separate from the storage medium, the code identifying a portion of the data base to which access is to be restricted; applying the separate medium to a surface of the data storage medium; reading said code from said separate medium; and limiting user access to only said portion of the data base identified by the code. - View Dependent Claims (5, 6)
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7. An article of manufacture comprising:
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a record storage medium encoded with a data base indicative of a multiplicity of flight related visual displays; and a machine readable code disposed on a separate medium applied to a surface of said record storage medium, the code identifying a portion of the data base to which user access is to be restricted. - View Dependent Claims (8)
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9. In a machine readable storage medium having a plurality of data sets stored thereon, a method of restricting access to predetermined ones of the data sets comprising the steps of:
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(a) providing, on a medium separate from the storage medium, a machine readable code identifying the predetermined ones of the data sets to which access is to be restricted; (b) applying the separate medium to a surface of the storage medium; (c) reading the code; (d) determining the predetermined ones of the data sets to which access is to be restricted based upon the code; and (e) restricting access to the predetermined ones of the data sets identified by the code;
whereby the storage medium may be customized according to the particular requirements of a user. - View Dependent Claims (10, 12)
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13. In a machine readable storage medium having a data base comprised of a plurality of data sets, a method of customizing the storage medium according to the requirements of a user comprising the step of:
applying a separate medium containing a machine readable code to a surface of the storage medium, the code identifying predetermined ones of the plurality of data sets to which access is to be restricted. - View Dependent Claims (14)
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15. Method of restricting access to ones of data sets stored on a machine readable storage medium comprising the steps of:
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(a) reading a code provided on a separate medium applied to a surface of the storage medium, the code identifying the data sets to which access is to be restricted; (b) determining the data sets to which access is to be restricted based upon the code; and (c) restricting access to the ones of the data sets identified by the code. - View Dependent Claims (16)
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17. Apparatus for restricting access to data stored on a machine readable storage medium comprising:
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(a) a machine readable code provided on a separate medium applied to a surface of the storage medium, the code identifying at least one data subset to which access is to be restricted; (b) first means for reading the code and providing a data output indicative thereof; and (c) second means responsive to the data output provided by the first means for restricting access to the data stored on the storage medium to only the data subset identified by the code. - View Dependent Claims (18, 19, 20, 21, 22)
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- 23. A machine readable storage medium having stored thereon a data base comprising a plurality of data sets, further comprising a machine readable code provided on a separate medium applied to a surface of the storage medium for identifying predetermined ones of the plurality of data sets to which access is to be restricted.
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27. Apparatus for restricting access to data stored on an optical disk comprising:
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(a) first means for reading a bar code contained on a label applied to a first surface of the disk and providing a data output indicative thereof, the code identifying at least one data subset to which access is to be restricted; (b) second means, separate from the first means, for reading data from a second surface of the disk; and (c) third means, responsive to the data output provided by the first means, for restricting access to the data subset identified by the code. - View Dependent Claims (28)
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Specification