Patents by Inventor David K. Klaffenbach

David K. Klaffenbach 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: 9895056
    Abstract: An ophthalmic laser illuminator 10 includes multiple laser devices 12-16. There are at least three different wavelengths of light emitted by the multiple laser devices 12-16 and each wavelength of light emitted by each laser device is outside of wavelengths blocked by a safety filter used for surgical treatment lasers 52. A controller 18 controls the multiple laser devices 12-16. A graphical user interface 32 is operably attached to the controller 18 for allowing a user to select a plurality of light parameters for a light beam exiting the illuminator 10.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: February 20, 2018
    Assignee: Bausch & Lomb Incorporated
    Inventors: David K. Klaffenbach, Brian McCary, John Goewert, David H. Mordaunt
  • Patent number: 8838212
    Abstract: An illumination system for illuminating a first biologic substance and a second biologic substance, comprising a first light output device capable of outputting polychromatic first light, a second light output device capable of outputting polychromatic second light, the first light output device and the second light output device selected such that (i) a first apparent color results when the first light is scattered from the first biologic substance and a second apparent color results when the second light is scattered from the first biologic substance, the first apparent color and the second apparent color being substantially the same as one another and (ii) a third apparent color results when the first light is scattered from the second biologic substance and a fourth apparent color results when the second light is scattered from the second biologic substance, the third apparent color and the fourth apparent color being substantially different than one another, and means for temporally modulating amounts of
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: September 16, 2014
    Assignee: Bausch & Lomb Incorporated
    Inventor: David K. Klaffenbach
  • Publication number: 20140128686
    Abstract: An ophthalmic laser illuminator 10 includes multiple laser devices 12-16. There are at least three different wavelengths of light emitted by the multiple laser devices 12-16 and each wavelength of light emitted by each laser device is outside of wavelengths blocked by a safety filter used for surgical treatment lasers 52. A controller 18 controls the multiple laser devices 12-16. A graphical user interface 32 is operably attached to the controller 18 for allowing a user to select a plurality of light parameters for a light beam exiting the illuminator 10.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: Bausch & Lomb Incorporated
    Inventors: David K. Klaffenbach, Brian McCary, John Goewert, David H. Mordaunt
  • Patent number: 8388104
    Abstract: A system is provided that includes an encoder strip having encoder markings, first and second optical encoders positioned at a fixed distance from one another on a substrate and, responsive to being moved along the encoder strip, configured to generate first and second signals, respectively, that each indicate detection of the encoder markings on the encoder strip and processing circuitry configured to determine a current phase difference between the first and the second signals using a first portion of the first signal that corresponds to a first plurality of encoder markings and a second portion of the second signal that corresponds to a second plurality of encoder markings.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: March 5, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rick M. Tanaka, Algird M. Gudaitis, David K. Klaffenbach
  • Publication number: 20120293992
    Abstract: An illumination system for illuminating a first biologic substance and a second biologic substance, comprising a first light output device capable of outputting polychromatic first light, a second light output device capable of outputting polychromatic second light, the first light output device and the second light output device selected such that (i) a first apparent color results when the first light is scattered from the first biologic substance and a second apparent color results when the second light is scattered from the first biologic substance, the first apparent color and the second apparent color being substantially the same as one another and (ii) a third apparent color results when the first light is scattered from the second biologic substance and a fourth apparent color results when the second light is scattered from the second biologic substance, the third apparent color and the fourth apparent color being substantially different than one another, and means for temporally modulating amounts of
    Type: Application
    Filed: May 16, 2011
    Publication date: November 22, 2012
    Inventor: David K. Klaffenbach
  • Patent number: 7756681
    Abstract: Embodiments of power supply circuits are disclosed in which a filter function is performed on a count value from a counter that counts the number of times of enabling of a power supply circuit.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: July 13, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David K. Klaffenbach, Michael J. Campin, Algird M. Gudaitis, Chadwick W. Stryker, Jon S. Boehm
  • Patent number: 7506180
    Abstract: Embodiments of a switching power supply circuit are disclosed wherein the number of times that a switch of the circuit is enabled is counted.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: March 17, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David K. Klaffenbach, Michael J. Campin, Algird M. Gudaitis, Chadwick W. Stryker
  • Publication number: 20090027438
    Abstract: A system is provided that includes an encoder strip having encoder markings, first and second optical encoders positioned at a fixed distance from one another on a substrate and, responsive to being moved along the encoder strip, configured to generate first and second signals, respectively, that each indicate detection of the encoder markings on the encoder strip and processing circuitry configured to determine a current phase difference between the first and the second signals using a first portion of the first signal that corresponds to a first plurality of encoder markings and a second portion of the second signal that corresponds to a second plurality of encoder markings.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: Rick M. Tanaka, Algird M. Gudaitis, David K. Klaffenbach
  • Patent number: 7463168
    Abstract: Various methods and apparatus relating to an encoder are disclosed.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: December 9, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David A. Rehmann, David K. Klaffenbach
  • Patent number: 7455286
    Abstract: Various embodiments of a sheet separation system are disclosed.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: November 25, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David K. Klaffenbach, Gary L. Miller, Jeffrey S. Mathena, Christopher M. Lesniak
  • Publication number: 20080024330
    Abstract: Various methods and apparatus relating to an encoder are disclosed.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 31, 2008
    Inventors: David A. Rehmann, David K. Klaffenbach
  • Patent number: 5284064
    Abstract: A low-noise, paper pick or other single cycle mechanism is obtained by employing a rotary solenoid (15) which has a force to a detent position which may be overcome by force from a drive roller (1). In the detent position the drive roller faces a blank sector (5) of a gear (3) which is integral with a shaft (7), which is the shaft to be turned. An electrical control signal to the solenoid rotates gear (3) through gear (13), which is directly driven by the solenoid, and which turns gear (11) on the shaft. The drive gear overcomes the force of the solenoid until it is disengaged after one cycle, at which time the detent force of the solenoid holds the mechanism in its detent position.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: February 8, 1994
    Assignee: Lexmark International, Inc.
    Inventors: Timothy A. Green, David K. Klaffenbach, Mohsen Marefat, Kevin D. Schoedinger