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Parallel data stream decryption device

  • US 20080212773A1
  • Filed: 03/02/2007
  • Published: 09/04/2008
  • Est. Priority Date: 03/02/2007
  • Status: Abandoned Application
First Claim
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1. A method for decrypting radar video data recorded on a recorder comprising the steps of:

  • (a) transferring said radar video data from said recorder into an encrypted data file within a personal computer;

    (b) opening said encrypted data file which includes said radar video data in an encrypted form interleaved with unencrypted recorder timing headers;

    (c) specifying a header block range over which to decrypt said radar video data in said encrypted form, wherein a user specifies said header block range by entering a time range of said radar video data to be decrypted in a first block time text box and a last block time text box which appears on a monitor for said personal computer;

    (d) engaging a decrypt button appearing on the monitor for said personal computer, wherein said user engages said decrypt button to invoke a decrypt function within a computer program on said personal computer;

    (e) decrypting said radar video data within said time range from said encrypted form to an unencrypted binary form, wherein the decrypt function within said computer program directs and controls the decryption of said radar video data to said unencrypted binary form;

    (f) opening a decrypted binary data file, wherein said decrypted binary data file includes said radar video data in said unencrypted binary form;

    (g) specifying a range of scans for converting said radar video data contained in said decrypted binary data file to an ASCII form; and

    (h) engaging an extract button appearing on the monitor of said personal computer, wherein said user engages said extract button to invoke an extract function within said computer program, said extract function within said computer program extracting said radar video data within said range of scans specified by said user from said decrypted binary data file and converting said radar video data from said unencrypted binary form to an ASCII form for storage in a text file.

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