Patents by Inventor Hans-Georg Winderlich

Hans-Georg Winderlich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4816657
    Abstract: 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 characterizing data recorded on the data support. The data supports are provided, at least in a zone of a reading track, with a surface pattern the lines, areas or dots of which differ from one data support to another by their widths and/or densities and/or respective associations. The surface pattern is read at selected positions of the reading track over limited paths or in punctual manner, and at least some selected reading results are used as said characterizing values.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: March 28, 1989
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4705938
    Abstract: 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 which differ from each other as regards their physical and/or chemical properties. In one embodiment, individual characters imprinted on the data support are used which differ from each other with respect to contrast or half-tone density in a manner unperceivable to human sight, but easily detectable by a detector or an automatic reading apparatus. Authenticity of the data support or data is determined by a security code contained in the specific physical or chemical properties of the selected individual characters. The method prevents from duplication or falsifying of data supports.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: November 10, 1987
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4680807
    Abstract: The method of identifying data supports such as credit cards, check cards, identity cards, etc. includes detecting inherent individual features of the cards to derive a random information therefrom. The random information is stored for later comparison with detected information to determine authenticity of the data support. In order to derive the random information in perfectly reproducible manner irrespective of changes of the dimensions of the data support, the individual characterizing features of the data supports are detected within a linear detection zone lying centrally between two opposed lateral edges of the data support. The invention provides an apparatus for perfectly aligning the data supports so that their central lines will always be coincident with the reading path of a detection system in which the data supports are processed.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: July 14, 1987
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4629873
    Abstract: 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 production process the identifying parameter is processed in accordance with an unequivocally reversible mathematical rule. The individual parameter may contain an encoded calculation rule. The processing of an identification number contained in the said parameter takes place in accordance with that rule.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: December 16, 1986
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4620727
    Abstract: 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 the actual card body (2) several times. As a result, the costs of using the credit card are reduced substantially.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: November 4, 1986
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4621188
    Abstract: 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 subscriber station includes a reading device enabling data access only if data read from an authorization card to be supplied fulfill predetermined test conditions.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: November 4, 1986
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4588286
    Abstract: 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 comparator means are provided for comparing the recorded original with the original at the respective copying process and interrupting the copying process in case of differences.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: May 13, 1986
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4582986
    Abstract: 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 itself or in a processing station.For subsequent authentication or authenticity identification of the data-carrier, its physical properties are scanned in a region thereof which comprises the region scanned for the characteristic marking process but is larger than this. The two sets of data derived from the said two scanned data-carrier regions are then mutually compared to trace points of coincidence by application of correlation-and signature-analysis-methods.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: April 15, 1986
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4542465
    Abstract: 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.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: September 17, 1985
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4535418
    Abstract: The invention relates to a method in which the action of a data processing device can be initiated by entering information which has been recorded on a data carrier. In order to be able to prevent misuse of such data carriers, particularly in the case of the latter being lost, by third parties, the data processing facility can be set in such a way that the initiation by the data carrier is blocked. A data processing device (1) comprises a blocking circuit (14) by means of which the initiation by a predetermined data carrier is prevented. In particular, the data carrier transport can be controlled in such a way that a predetermined data carrier is not output again after having been input into a read-write device.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: August 13, 1985
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4518852
    Abstract: 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 by the operator with respect to the command. The operator has no further personal influence on the parameter setting and this makes intentional or unintentional errors impossible. The device comprises a computer (2) and a read-write device (3) for reading data written on a data carrier (4) into the computer (2). The command for parameter setting is applied to a magnetic track (5) of the data carrier and is read out by means of a read device and fed to the computer where a parameter setting takes place.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: May 21, 1985
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4501959
    Abstract: The method of aligning generally flat data supports of flexible sheet material such as credit cards, identity cards, check cards and similar documents includes the steps of engaging at least one edge of the data support and exerting an alignment force thereon; prior to exerting the alignment force on the data support edge, an arching force is exerted substantially normally on at least one main surface of the data support to deform the latter into a generally arched state. Preferably, the data support is deformed into a shape having a generally waved cross-section in a direction perpendicular to the direction of the arching force. At the end of the alignment operation, the data support is restored into its flat shape by a pressure plate urging the data support against a flat supporting face of a receiving member.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: February 26, 1985
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4493107
    Abstract: The method of identifying data supports such as credit cards, cheque cards, identity cards, etc. includes detecting inherent individual features of the cards to derive a random information therefrom. The random information is stored for later comparison with detected information to determine authenticity of the data support. In order to derive the random information in perfectly reproducible manner irrespective of changes of the dimensions of the data support, the individual characterizing features of the data supports are detected within a linear detection zone lying centrally between two opposed lateral edges of the data support. The invention provides an apparatus for perfectly aligning the data supports so that their central lines will always be coincident with the reading path of a detection system in which the data supports are processed.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: January 8, 1985
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4472050
    Abstract: 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 and the image to be formed by the imaging optics. The light path blocking arrangement is preferably formed by an LCD-layer associated with the platen on which the original to be copied is laid, the LCD-element being placed under the control of the external information source.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: September 18, 1984
    Assignee: Lutz H. Prufer
    Inventors: Hermann Stockburger, Hans-Georg Winderlich, Siegfried Bauer, Zeljko H. Adamovic
  • Patent number: 4469937
    Abstract: 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 which differ from each other as regards their physical and/or chemical properties.In one embodiment, individual characters imprinted on the data support are used which differ from each other with respect to contrast or half-tone density in a manner unperceivable to human sight, but easily detectable by a detector or an automatic reading apparatus. Authenticity of the data support or data is determined by a security code contained in the specific physical or chemical properties of the selected individual characters. The method prevents from duplication or falsifying of data supports.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: September 4, 1984
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4450348
    Abstract: 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 characterizing data recorded on the data support. The data supports are provided, at least in a zone of a reading track, with a surface pattern the lines, areas or dots of which differ from one data support to another by their widths and/or densities and/or respective associations. The surface pattern is read at selected positions of the reading track over limited paths or in punctual manner, and at least some selected reading results are used as said characterizing values.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: May 22, 1984
    Inventors: Hermann Stockburger, Hans-Georg Winderlich
  • Patent number: 4432567
    Abstract: The authorization card has one or more storing zones for storing a predetermined information defining the type and/or extent of authorization, for example credit information in case of a credit card, and at least one storing zone for storing variable information associated with the owner of the card. These storing zones are adapted for automatic reading of the fixed and variable information in an automatic reading device. The authorization card has means for generating a coded information to be compared with the variable information. This coded information is manually adjusted on the authorization card by its user and is also adapted for automatic reading by the automatic reading device. Manual adjustment of the coded information is facilitated by a scale provided on the authorization card.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: February 21, 1984
    Inventors: Hermann Stockburger, Hans-Georg Winderlich