Patents by Inventor Leonard T. Schroath

Leonard T. Schroath 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: 8627638
    Abstract: A media wrapper for use in a printing device includes a first end, a second end, and a perforation disposed between the first and second ends, wherein the perforation is configured to split the media wrapper separating the first and second ends.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: January 14, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bradley J. Anderson, William I. Herrmann, Leonard T. Schroath, Bruce L. Johnson
  • Patent number: 7281130
    Abstract: Various systems, methods, and programs are provided that facilitate access to a secure application. In one embodiment, a method is provided that includes encrypting at least one authentication sequence in a computer system using a network identifier as an encryption key, and storing the encrypted at least one authentication sequence in a memory accessible to the computer system. Next, the encrypted at least one authentication sequence is decrypted using a second network identifier as a decryption key, the second network identifier is procured after storing the encrypted at least one authentication sequence. Thereafter, an expedited login task is performed to access the application with the at least one authentication sequence if the decryption of the at least one authentication sequence is successful.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: October 9, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bruce L. Johnson, Bradley J. Anderson, Leonard T. Schroath, William I. Herrmann
  • Patent number: 7165675
    Abstract: A media wrapper for use in a printing device includes a first end, a second end, and a perforation disposed between the first and second ends, wherein the perforation is configured to split the media wrapper separating the first and second ends.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: January 23, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bradley J. Anderson, William I. Herrmann, Leonard T. Schroath, Bruce L. Johnson
  • Patent number: 7136175
    Abstract: A method of powering up a printing device having a component that employs a warm-up operation, the method including, upon receiving power to the printing device, detecting delay indicia, and selectively delaying the warm-up operation based on the detected delay indicia.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 14, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bradley J. Anderson, Bruce L. Johnson, Leonard T. Schroath, William I. Herrmann, Elen S Hunt
  • Patent number: 7092646
    Abstract: A printing device is provided that includes a housing having a media path therethrough. The printing device includes at least one sensor for detecting when a media jam occurs in the media path. At least one indicator is operatively associated with a processor to provide a series of indications that can be used to locate the media jam. The indicators can comprise lights, audible indicators or graphical indicators.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: August 15, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Leonard T. Schroath, William I. Herrmann, Bruce L. Johnson, Bradley J. Anderson
  • Patent number: 7068401
    Abstract: An optical scanning apparatus including a chassis having a panel, the panel having an opening defined therethrough. The apparatus has a scanner carriage which is moveably supported within the chassis. A carriage locking device includes an elongated locking member which is moveably disposed within the opening in the panel and, when the locking member is moved in a downward direction within the opening, the locking device secures the scanner carriage in a relatively fixed position with respect to the chassis.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 27, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bruce L. Johnson, William I. Herrmann, Leonard T. Schroath
  • Patent number: 6973597
    Abstract: A printer error is detected and logged in an error log. If the same printer error has occurred within a predetermined time period, an error message is generated on the printer's control panel and a network administrator is notified of the printer errors. If the same printer error has not occurred within the predetermined time period, the printer is rebooted. If the same printer error has occurred a predetermined number of consecutive times, an error message is generated on the printer's control panel and a network administrator is notified of the printer errors. If the same printer error has not occurred a predetermined number of times, the printer is rebooted.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: December 6, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Leonard T. Schroath, Bradley J. Anderson, Bruce L. Johnson, William I. Herrmann
  • Publication number: 20040213590
    Abstract: A printing device is provided that includes a housing having a media path therethrough. The printing device includes at least one sensor for detecting when a media jam occurs in the media path. At least one indicator is operatively associated with a processor to provide a series of indications that can be used to locate the media jam. The indicators can comprise lights, audible indicators or graphical indicators.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 28, 2004
    Inventors: Leonard T. Schroath, William I. Herrmann, Bruce L. Johnson, Bradley J. Anderson
  • Publication number: 20040196977
    Abstract: An embodiment of the invention is disclosed in which a method determines whether a client device has connected to a network in a non-wireless manner. In response to determining that the client device has connected to the network in the non-wireless manner, the method conveys one or more wireless encryption keys to the client device, for the client device to use to wirelessly communicate over the network.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 7, 2004
    Inventors: Bruce L. Johnson, Bradley J. Anderson, William I. Herrmann, Leonard T. Schroath
  • Patent number: 6801723
    Abstract: A method and apparatus for an image-forming device having at least one patterned roller for affecting the amount of toner present on a print medium when the print medium is advanced through a paper path of the image-forming device and contacts the at least one patterned roller. The roller includes a purposeful pattern that is formed in an outer surface of the roller. The purposeful pattern is configured to form an identifying mark on a print medium as a result of the amount of toner present on the print medium.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: October 5, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: William I. Herrmann, Bradley J. Anderson, Bruce L. Johnson, Leonard T. Schroath
  • Patent number: 6793331
    Abstract: An imaging substance cartridge includes a cartridge body that defines an imaging substance chamber. The chamber can contain an imaging substance, as for example toner or liquid ink. The cartridge includes an imaging substance level indication device. The imaging substance level indication device includes a level indication actuator supported in the cartridge body, and which is configured to displace a vapor volume within the imaging substance chamber. The imaging substance level indication device further includes an imaging substance level indicator supported by the cartridge body. The imaging substance level indicator is responsive to the displacement of vapor volume within the imaging substance chamber.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: September 21, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bradley J. Anderson, Bruce L. Johnson, William I. Herrmann, Leonard T. Schroath
  • Publication number: 20040169894
    Abstract: A document scanner for scanning an open book includes a housing and a wedge-shaped transparent platen supported by the housing. The platen defines an upper surface configured to support a book in a face-down position, and a lower surface opposite the upper surface. The platen includes a first platen portion and a second platen portion joined at a vertex to thereby define the wedge-shape of the platen. The document scanner further includes a scan head moveably supported by the housing. The scan head is configured to move generally parallel to the first platen portion and the second platen portion.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Leonard T. Schroath, Bradley J. Anderson, Bruce L. Johnson, William I. Herrmann
  • Publication number: 20040165211
    Abstract: A method and system for improving secured access to data files stored on a printing device using an authorization device for receiving and transmitting an authorization code to a printing device for the release of secure data. An authorization code associated with secure data stored in a memory of a printing device is transmitted to an authorization device for later transmission to the printing device for the release of the secure data.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventors: William I. Herrmann, Bradley J. Anderson, Bruce L. Johnson, Leonard T. Schroath
  • Patent number: 6764068
    Abstract: A method of detecting undesired metal objects in a document feed path and a document processing apparatus that includes a feeder for transporting document sheets along a feed path; and a detector for detecting the presence of foreign metal objects in said feed path. The detector comprises a source of alternating electrical energy connected to a conductive transmitter loop for generating a pulsed magnetic field proximate the feed path and a conductive receiver loop that receives reflected magnetic field signals. The reflected magnetic signals induce electrical signals in the receiver loop which are amplified and processed to produce output signals which are sent to a phase shift analyzer which discriminates among output signals produced in the receiver loop by magnetic reflections from metal objects of varying types to provide an output signal when an undesired metal object in the feed path is detected.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: July 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bradley J. Anderson, William I. Herrmann, Leonard T. Schroath, Bruce L. Johnson
  • Publication number: 20040105700
    Abstract: A method and apparatus for an image-forming device having at least one patterned roller for affecting the amount of toner present on a print medium when the print medium is advanced through a paper path of the image-forming device and contacts the at least one patterned roller. The roller includes a purposeful pattern that is formed in an outer surface of the roller. The purposeful pattern is configured to form an identifying mark on a print medium as a result of the amount of toner present on the print medium.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Inventors: William I. Herrmann, Bradley J. Anderson, Bruce L. Johnson, Leonard T. Schroath
  • Publication number: 20040049571
    Abstract: A system and methods enable the gathering and transferring of usage information for an electronic document so that the document's usage history can be tracked. A document history is recorded into an electronic document through the execution of a tracking module located within the electronic document. When the electronic document is accessed, the tracking module executes to record document history information into the electronic document. The disclosed system and methods provide a convenient way to track secured documents, maintain document databases, and offer feedback to authors on how documents are used so that document contents can be tailored to better suit the needs of an audience.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Inventors: Bruce L. Johnson, Leonard T. Schroath, Bradley J. Anderson, William I. Herrmann
  • Publication number: 20040027430
    Abstract: An imaging substance cartridge includes a cartridge body that defines an imaging substance chamber. The chamber can contain an imaging substance, as for example toner or liquid ink. The cartridge includes an imaging substance level indication device. The imaging substance level indication device includes a level indication actuator supported in the cartridge body, and which is configured to displace a vapor volume within the imaging substance chamber. The imaging substance level indication device further includes an imaging substance level indicator supported by the cartridge body. The imaging substance level indicator is responsive to the displacement of vapor volume within the imaging substance chamber.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 12, 2004
    Inventors: Bradley J. Anderson, Bruce L. Johnson, William I Hermann, Leonard T. Schroath
  • Publication number: 20030231357
    Abstract: An optical scanning apparatus including a chassis having a panel, the panel having an opening defined therethrough. The apparatus has a scanner carriage which is moveably supported within the chassis. A carriage locking device includes an elongated locking member which is moveably disposed within the opening in the panel and, when the locking member is moved in a downward direction within the opening, the locking device secures the scanner carriage in a relatively fixed position with respect to the chassis.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 18, 2003
    Inventors: Bruce L. Johnson, William I. Herrmann, Leonard T. Schroath
  • Publication number: 20030227642
    Abstract: A method of powering up a printing device having a component that employs a warm-up operation, the method including, upon receiving power to the printing device, detecting delay indicia, and selectively delaying the warm-up operation based on the detected delay indicia.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Inventors: Bradley J. Anderson, Bruce L. Johnson, Leonard T. Schroath, William I. Herrmann, Elen S. Hunt
  • Publication number: 20030218767
    Abstract: A system including a client computer and a remotely networked printer provides deliberate audible feedback to a computer user regarding print jobs sent to the remote computer. The type of feedback presented is user-configurable and non-disruptive to a user's computing activities. The system is capable of providing users of remote shared printers with the same type of audible printing indications typically present when using a local personal printer.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 27, 2003
    Inventors: Leonard T. Schroath, Bradley J. Anderson, Bruce L. Johnson, William I. Herrmann