The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2002
Filed:
Jan. 27, 2000
David E. Norton, Jr., Boulder, CO (US);
Mark H. Moyer, Westminster, CO (US);
Exabyte Corporation, Boulder, CO (US);
Abstract
Method and apparatus are provided for enabling a reproducing apparatus, having a read channel which utilizes a second transfer function, to recover accurately data which has been recorded on a medium with a first transfer function. A compatibility circuit ( ) derives a data rate from the medium, and causes the read channel to sample the data steam acquired from the medium at a multiple of the data rate, thereby creating a multiply-sampled data stream. Further, the compatibility circuit manipulates the multiply-sampled data stream to generate a deformatted read data stream. In particular, a deformatter ( ) of the compatibility circuit selects only some bits of the multiply-sampled data stream to generate a modified data stream; and the applies a reverse of the first transfer function to generate a deformatted read data stream.