1
Hermann Stockburger, Hans Georg Winderlich: Credit card. Donald Brown, November 4, 1986: US04620727 (58 worldwide citation)

A credit card (1) with a storage medium such as, for example, a magnetic strip (4) is provided. The credit card (1) is made multi-part and consists of a card body (2) and a strip (3) which can be applied thereto. The strip (3) can be replaced, as required, by new strips, making it possible to use th ...


2
Hermann Stockburger, Hans Georg Winderlich: Method and device for characterizing and identifying falsification proof data boards. Donald Brown, May 22, 1984: US04450348 (35 worldwide citation)

The method of characterizing and identifying data supports such as value or identity cards in view of protection against falsification, imitation or duplication, comprises measurement of physical characterizing features of the data support and the measured characterizing values are converted into ch ...


3
Hermann Stockburger, Hans Georg Winderlich: Method for operating automatic devices such as cash registers or the like and a device for carrying out the method. Donald Brown, Robert M Asher, May 21, 1985: US04518852 (29 worldwide citation)

A method is created in which parameters such as, for example, the prices can be set by the operator. So that the parameter is changed accurately in a predetermined manner, the command for setting the parameter is input into a computer of the device by means of a data carrier which cannot be altered ...


4
Hermann Stockburger, Hans Georg Winderlich: Method and apparatus for the characteristic marking and/or identification of a data-carrier. Donald Brown, April 15, 1986: US04582986 (27 worldwide citation)

For the characteristic marking of a data-carrier, for example a cheque- or personal authorization card, its specific physical properties, e.g. optical properties, are scanned in a first data-carrier region, converted into characterizing data and recorded as an authenticity record on the data-carrier ...


5
Hermann Stockburger, Hans Georg Winderlich: Method of securing data. Donald Brown, September 4, 1984: US04469937 (19 worldwide citation)

A method of securing data recorded on a data support and a device for performing the method are disclosed. In addition to the basic information contained in the data recorded on the data support, for generating an additional security code, selected individual properties of the recorded data are used ...


6
Hermann Stockburger, Hans Georg Winderlich, Siegfried Bauer, Zeljko H Adamovic: Copying apparatus for producing combined copies. Lutz H Prufer, Donald Brown, September 18, 1984: US04472050 (16 worldwide citation)

A copying apparatus is disclosed in which an information derived from an external information source may be combined with an original to be copied. The imaging arrangement of the copying apparatus comprises an arrangement for blocking at least selected portions of the light path between the original ...


7
Hermann Stockburger, Hans Georg Winderlich: Data card and data strip measuring means. Donald Brown, November 4, 1986: US04621188 (15 worldwide citation)

In a data transmission system comprising at least one data bank, data may be accessed through a subscriber station. First data should only be accessed by a first authorized range of subscribers, while other data may only be accessed by a second authorized range of subscribers. To this end, the subsc ...


8
Hermann Stockburger, Hans Georg Winderlich: Copying apparatus with use registering means. Donald Brown, May 13, 1986: US04588286 (12 worldwide citation)

In a copying apparatus the original and an information characterizing the user is recorded in addition to the copy to be generated for registering the use of the copying apparatus. In order to prevent the original copy to be replaced by a non-recorded other original after recording the original copy ...


9
Hermann Stockburger, Hans Georg Winderlich: Method of producing a controlled number of authorization members. Donald Brown, September 17, 1985: US04542465 (11 worldwide citation)

A method of producing a controlled number of authorization members used for providing access to limited access machines or restricted areas, the method including generating a hierarchy of members having different levels of authorization prior to producing the authorization member.


10
Hermann Stockburger, Hans Georg Winderlich: Method and means for producing and analyzing secret identifying code marks in machine-scanned data carriers. Donald Brown, December 16, 1986: US04629873 (11 worldwide citation)

For producing and evaluating secret identification code marks on data carriers of the kind adapted to be scanned by machines specific parameters are recorded in encoded form. In order to reach a high degree of security in respect of fraud or counterfeit without requiring a complicated and expensive ...