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. 12, 2010
Filed:
Dec. 17, 2004
Theodore Antonakopoulos, Patras, GR;
Evangelos S. Eleftheriou, Zurich, CH;
Haris Pozidis, Gattikon, CH;
Theodore Antonakopoulos, Patras, GR;
Evangelos S. Eleftheriou, Zurich, CH;
Haris Pozidis, Gattikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for overwriting data in a probe-based data storage device wherein data is represented by the presence and absence of pits formed in a storage surface by a probe of the device is provided. Input data is first coded such that successive bits of a given value x in the coded input data (b, b, b, . . . ,) are separated by at least d bits of the complementary value {tilde over (x)}, where d is a predetermined number≧2. Overwrite data bits (v, v, v, . . . ,) are then generated by encoding the coded input data bits (b, b, b, . . . ,).