Inventor · Cushing, OK, US

Douglas M. Carson

27Patents
6h-index
5Co-inventors
58Inventor score

Filing activity: Mar 31, 2000 → Mar 9, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US8189902B1 Creating an XY image pattern on a rotating substrate Physics 23 Active
US6477124B2 Varying the rate at which data appear on an optical disc rotated at a constant linear velocity to prevent unauthorized duplication of the disc Physics 23 Expired
US6487155B1 Optical disc authentication using alternate data modulation encoding schemes Physics 12 Expired
US6715122B2 Copy protection through symbol substitution and induced errors Physics 9 Expired
US7102973B1 Media authentication using altered sector sizes Physics 8 Expired
US7805764B1 Sequencing data blocks to provide hidden data on a recording medium Physics 7 Expired
US6768709B2 Hiding digital data in a digital audio or video carrier signal Physics 3 Expired
US8089852B2 Storage medium with separate image and data tracks Physics 2 Active
US8300345B2 Variable track width recording compensation Physics 2 Active
US8300524B1 Authenticating a data transmission by varying a rate thereof Electricity 2 Active
US6717899B1 Optical disc hidden data technique Physics 2 Expired
US6973573B1 Detection of a digital data fingerprint Physics 2 Expired
US9953806B1 Substrate alignment detection using circumferentially extending timing pattern Electricity 1 Active
US7590039B2 Radial separation distance determination for a data storage medium Physics 1 Expired
US8144558B1 Hidden patterns on a data storage medium Physics 0 Active
US7684307B2 Identifier tag to track layers in a multi-layer optical disc Physics 0 Active
US9865297B2 Image archive disc Physics 0 Active
US9627179B2 Substrate alignment through detection of rotating timing pattern Electricity 0 Active
US10134624B2 Substrate alignment detection using circumferentially extending timing pattern Electricity 0 Active
US9177593B2 Image archive disc Physics 0 Active
US8300505B2 Writing repeating patterns of features to a substrate Physics 0 Active
US7907492B1 Data storage medium with improved multi-session recording format Physics 0 Active
US7710854B2 Multi-layer optical disc format Physics 0 Active
US8154817B2 Compensation for different transducer translation path geometries Physics 0 Active
US8761014B1 Authenticating a data transmission by varying a rate thereof Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.