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Storage medium and apparatus and method for recovering information from such medium by oversampling

  • US 5,544,140 A
  • Filed: 09/30/1992
  • Issued: 08/06/1996
  • Est. Priority Date: 02/04/1991
  • Status: Expired due to Term
First Claim
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1. An apparatus for recovering symbols carried by an information storage medium carrying two or more blocks of differentiable symbols representing digital information, the symbols of each block being two-dimensionally encoded, said apparatus comprisingsampling means for oversampling in two dimensions said storage medium to produce samples,processing means for storing said samples to successively obtain for each block a two-dimensional image representation and for generating recovered symbols from each two-dimensional image representation, andmeans for forming a continuous data stream from the symbols recovered from two or more blocks.

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