Patents of Marco Martens



   A. Califano, S.C. Kaufman, M. Martens, W.R. Pulleyblank, G.A. Stolovitzky, C.P. Tresser , C.W. Wu; Chai Wah :
        Semiotic system and method with privacy protection,   US patent 7.761.715 July 20 2010 .

   T.J. Nowicki, M. Martens, J.Q. Trelewicz, T.J. Trenary, J.L. Mitchell, M.T. Brady :
        Efficient scaling in transform domain ,   US patent 7.298.925 November 20 2007 .

   G.W. Braudaway, F.P. Giordano, M. Martens, C.P. Tresser, C.W. Wu, C.A. Micchelli :
        Method and apparatus to correct distortion of document copies ,   US patent 7.215.445 May 8 2007.

   G. Aggarwal, N. M. Amer, V. R. Austel, P. K. Dubey, A. Kulshreshtha, M. Martens, B. A. Scott, S. W. Smith, C. P. Tresser, R. J. von Gutfeld, S. H. Weingart, C. W. Wu:
        Method and Apparatus for producing duplication and imitation resistant identifying marks on objects,    US patent 7.188.258 March 6 2007 .

  M. Martens, C. Tresser:
        Method and system for producing Wise Card,    US patent 7.171.565 Jan 30 2007.

  M. Martens, T.J. Nowicki, J.Q. Trelewicz, T. J. Trenary:
        Method and system for scaling a signal sample rate ,    US patent 7.099.523 August 2006.

  T.J. Chainer, B.P. Kitchens, S.H. Maes, M. Martens, J.D. Rutledge, S. Pankanti, C.P. Tresser:
        Method and apparautus for secure authorization and identification using biometrics without privacy invasion,    US Patent 6,957,337 October 18, 2005.

  G. Aggarwal, P. K. Dubey, A. Kulshreshtha, M. Martens, C. P. Tresser, C. W. Wu:
        Semi-fragil watermarks,    US patent 6,834,344 Dec 21, 2004.

  A. Afzali-Ardakani, C. Feger, P. A. Moskowitz, M. Martens, A. G. Schrott, C. Tresser, R. J. von Gutfeld:
        Method and System for preventing Parallel Marketing of Wholesale and Retail Items,    US patent 6,817,538 Nov 16, 2004.

  G.Braudaway, M.Martens, F.Mintzer, J.Shearer, C.Tresser, C.W.Wu:
        Watermarks for customer identification,    US patent 6,807,634 Oct 19, 2004.

  A. Afzali-Ardakani, C. Feger, P. A. Moskowitz, M. Martens, A. G. Schrott, C. Tresser, R. J. von Gutfeld:
        System for preventing Parallel Marketing of Wholesale and Retail Items,    US patent 6,746,053 June 8, 2004.

  M. Martens, G. Thompson, R. Rao, C.Tresser, C.W.Wu:
        Digital printer for avoiding moire patterns by using a dithering mask and angular rotation between print head and print medium to simulate analog printer halftoning of color images,    US patent 6,738,162 May 18 2004.

  M. Martens, C. Michelli, J. Mitchell, T. Trenary:
        Shift and/or merge of transformed data along two axes,    US patent 6,678,423 Jan 13, 2004.

  M. Martens, J. Mitchell, T. Trenary:
        Hybrid domain processing of multi-dimensional transformed data ,    US patent 6,675,185 Jan 6, 2004.

  M. Martens, C. Michelli, J. Mitchell, T. Trenary:
        Shift and/or merge of transformed data along one axes,    US patent 6,671,414 Dec 30, 2003.

  R. Adler, A. Kalvin, M. Martens, M. Shub:
        Method for computing the shape of 3-dimensional linkage structures based on optimization techniques on networks of orthogonal frames,    US patent 6,662,148 Dec 9, 2003.

  R. Adler, M. Martens, J. L. Mitchell, N. Rijavec, R.H. Risch, C. Tresser, C. W. Wu:
        Constrained Digital halftoning,    US Patent 6,603,573 Aug 5, 2003.

  R. von Gutfeld, M. Martens, C. Tresser:
        Method and apparatus for depositing ordinary checks from home,    US patent 6,450,403 B1 Sept 17, 2002.