Patents by Inventor Teunis Tel

Teunis Tel 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).

  • Publication number: 20090119505
    Abstract: In a method for performing an electronic transaction a first transaction part generates a digital signature and an encrypted digital signature. The second transaction party receives both signatures. The second party is enabled to verify the digital signature, but cannot verify or (re)generate the encrypted digital signature. A trusted third party is enabled to verify the encrypted digital signature if the digital signature is also provided, since the trusted third party cannot (re)generate the digital signature. Thus, no other party than the first transaction party can (re)generate both the digital signature and the encrypted digital signature. Therefore, no other party presenting himself as the first transaction party can be verified as being the first transaction party.
    Type: Application
    Filed: May 10, 2005
    Publication date: May 7, 2009
    Applicant: DTS Ltd.
    Inventors: Scott MacDonald Ward, Teunis Tel
  • Publication number: 20090031430
    Abstract: A software application installation method installs a software application on a device such that the installed application can only be activated on said device. Thereto, an authorization application is installed as well on the device. During installation, the authorization application generates a software release code that is stored in a first and a second memory location, of which at least one is a memory location not accessible to a user. When the software application is later activated on the device, the authorization application compares the software release codes stored in said two memory locations. The application is only started if the software release codes correspond. Further, an authorization verification method is disclosed. A second party may verify the legitimacy of the installed application by storing device specific identification data and application specific installation data when a first connection is established and later comparing said data if a second or further connection is established.
    Type: Application
    Filed: May 13, 2005
    Publication date: January 29, 2009
    Inventors: Scott MacDonald Ward, Teunis Tel
  • Publication number: 20070271456
    Abstract: A method for performing an electronic transaction is disclosed. The method provides authentication data and authentication software to an electronic device and preferably stored in a secure storage location or other location inaccessible to the user or the operating system of the device. When digital data is requested from a transaction party that requests a digital signature, the authentication software is activated to generate said digital signature from the authentication data. Next, the digital signature is provided to the other transaction party, which then provides the requested digital data. The digital signature may be embedded in the requested and provided digital data. Further, a method for performing a verification of legitimate use of digital data is disclosed.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 22, 2007
    Inventors: Scott Ward, Teunis Tel
  • Patent number: 6565002
    Abstract: In a method and system for identifying one or more objects, a two-dimensional, optically readable pattern and an identification code are generated. The pattern and the identification code are paired in one-to-one correspondence by means of a predetermined algorithm and are arbitrary. A two-dimensional representation of the pattern is provided on the object or on a pattern support connected thereto. The identification code is stored together with associated identification information. In order to identify the object, the representation of the pattern thereof is optically scanned and the associated identification code determined, by means of which the identification information can be determined.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 20, 2003
    Assignee: Unicate B.V.
    Inventor: Teunis Tel
  • Patent number: 5839457
    Abstract: A device for rinsing objects has a holder (1) for supporting an object (4) to be cleaned, two passages (8, 9) at opposite sides of the object situated in the holder in operation, and two reservoirs (10, 11) for holding rinsing liquid (18), a first reservoir (10) communicating with a first passage (8) and a second reservoir (11) communicating with a second passage (9), and at least the first reservoir (10) having a variable volume.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: November 24, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Martinus M. Rijken, Teunis Tel
  • Patent number: 5719939
    Abstract: A product, such as a credit card, passport, or bank note, is secured against forgery or fraud by the provision of a unique pattern of overlying individual fibers which are embedded in a transparent base material, and such that the fibers form differing geometrical configurations which are optically scannable through a surface of the transparent base material. The product is thus made unique and impossible to forge, and its authenticity may be verified by initially scanning the geometrical configurations, with the scanned information being converted into digital data which may be compressed and encrypted, and then stored in a permanent memory. Following the distribution of the product, an inspector may scan the product and compare the obtained data with the stored data to thereby verify the authenticity of the product.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: February 17, 1998
    Assignee: Unicate B.V.
    Inventor: Teunis Tel
  • Patent number: 5621219
    Abstract: A device for determining from one or more different directions the geometrical pattern of a mark being randomly shaped in three dimensions and being embedded in a transparent material and securely fixed to an object. A radiation source is designed to emit radiation to a matrix of radiation detectors. The object is placed with the mark in the path of the radiation for projecting a silhouette of the mark onto the matrix of radiation detectors by the radiation sources.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: April 15, 1997
    Assignee: Unicate B.V.
    Inventors: Rudolf L. van Renesse, Teunis Tel, Bart Snijders
  • Patent number: 5354097
    Abstract: An object or document, such as a credit card, passport, or bank note, is secured against forgery or fraud by the provision of a unique pattern of overlying individual fibers which are embedded in a sheet of transparent base material, and such that the fibers form geometrical configurations which are optically scannable through a surface of the transparent base material. The object or document is thus made unique and impossible to forge, and its authenticity may be verified by initially scanning the geometrical configurations with the scanned information being converted into digital data which may be compressed and encrypted, and then stored in a permanent memory. Following the distribution of the object or document, an inspector may scan the object or document and compare the obtained data with the stored date to thereby verify the authenticity of the object or document.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: October 11, 1994
    Assignee: Teunis Tel
    Inventor: Teunis Tel
  • Patent number: 4942831
    Abstract: Device for the protected storage of objects, comprising a closable container having an electrical security shield enclosing a storage space, damaging means (10) for rendering the objects useless, and means (4) for feeding in from the outside a command which disables the damaging means (10), the security shield comprising one or more electrical systems which at least togther extend over essentially the entire surface of the shield and which cooperate with a processing circuit (14) which detects an electrical parameter of each system, and which is capable of delivering an activation command to the damaging means (10) when a detected parameter value deviates from a reference value.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: July 24, 1990
    Assignee: Seculock B. V.
    Inventor: Teunis Tel