1
Leonard Storch, Ernst van Haagen: Information transfer and use, particularly with respect to counterfeit detection. CIAS, Rosen Dainow & Jacobs, February 1, 1994: US05283422 (235 worldwide citation)

Coding systems utilizing machine-readable coding are disclosed. The coding systems are extremely simple to use and preferred embodiments of the machine-readable coding require no external reference or reference code or starting point or orientation for reading or decoding. The number of usable codes ...


2
Leonard Storch, Ernst van Haagen: Information transfer and use, particularly with respect to objects such as gambling chips. Leonard Storch, Frank J DeRosa, March 21, 1989: US04814589 (175 worldwide citation)

Coding systems utilizing machine-readable coding are disclosed. The coding systems are extremely simple to use and preferred embodiments of the machine-readable coding require no external reference or reference code or starting point or orientation for reading or decoding. The number of usable codes ...


3
Leonard Storch, Ernst Van Haagen: Counterfeit detection using ID numbers with at least one random portion. Cias, Rosen Dainow & Jacobs, November 22, 1994: US05367148 (150 worldwide citation)

Counterfeit objects, such as products or documents, can be detected by checking associated ID numbers, which include one or more appended fields of one or more randomly selected digits, in a database containing the correct authorized ID numbers. This use of random selection makes it impossible for c ...


4
Leonard Storch, Ernst van Haagen: Optical error-detecting, error-correcting and other coding and processing, particularly for bar codes, and applications therefor such as counterfeit detection. CIAS, Rosen Dainow & Jacobs Liability Partnership, August 20, 1996: US05548110 (142 worldwide citation)

Bar codes, comprised of black and white stripes, are shown to be a finite topic, and the optimum bar code methodology, binary coded binary, BCB, is disclosed. Binary digits are utilized to represent bar coded messages and each binary digit is immediately complemented, forming two independent but bin ...


5
Ernst van Haagen, Leonard Storch, Leonard Frank: Bar code decoding using moving averages to break the (N.K.) code barrier for UPC, EAN, code 128 and others. CIAS, Cowan Liebowitz & Latman P C, March 30, 1999: US05889270 (49 worldwide citation)

The new generic bar code decoder system described, with its multistage error correcting, is far more powerful than dedicated reference decode algorithms for popular linear and two dimensional bar codes. For example: the 1-7 and 2-8 EAN and UPC character substitution problems are 100% solved (because ...


6
Leonard Storch, Ernst van Haagen: Optimal error-detecting, error-correcting and other coding and processing, particularly for bar codes, and applications therefor such as counterfeit detection. Cias, Brown Raysman Millstein Felder & Steiner, May 16, 2000: US06062481 (43 worldwide citation)

Bar codes, comprised of black and white stripes, are shown to be a finite topic, and the optimum bar code methodology is binary coded binary, BCB. Binary digits are utilized to represent bar coded messages and each binary digit is immediately complemented, forming two independent but binarily comple ...


7
Leonard Storch, Ernst van Haagen: Self-correcting registers, error-detecting/correcting registers, and inversion coding using one bit, and other information storage media. CIAS, Rosen Dainow & Jacobs, February 11, 1992: US05088093 (41 worldwide citation)

Registers are inclined to react to any interference as follows: if any one stage inverts, the entire register inverts. In one embodiment, one additional bit is associated with the register, which bit is used to indicate that interference has occurred. Registers may then be inverted to their original ...


8
Ernst van Haagen, Leonard Storch, Leonard Frank: Bar code decoding using moving averages to break the (n,k) code barrier for UPC, EAN Code 128 and others. CIAS, Rosen Dainow & Jacobs, October 7, 1997: US05675137 (28 worldwide citation)

The new generic bar code decoder system described, with its multistage error correcting, is far more powerful than dedicated reference decode algorithms for popular linear and two dimensional bar codes. For example: the 1-7 and 2-8 EAN and UPC character substitution problems are 100% solved (because ...