Patents by Inventor Shek Fai Lau

Shek Fai Lau 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: 7024280
    Abstract: A robot with an edge detector and two operating modes. The first operating mode is a remote control mode. The second operating mode is a processor controlled mode.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: April 4, 2006
    Assignee: Sharper Image Corporation
    Inventors: Andrew J. Parker, Edward C. McKinney, Jr., Tristan M. Christianson, Richard J. Thalheimer, Shek Fai Lau, Mark H. Duncan, Charles E. Taylor
  • Patent number: 6984987
    Abstract: Systems and methods are provided for monitoring and suppressing arcing between a first electrode and a second electrode of an electro-kinetic system. A current (or voltage) associated with the electro-kinetic system is monitored in order to adjust a first count and a second count. Each time a monitored value reaches a threshold, the first count is incremented. Each time the first count reaches a first count threshold, the electro-kinetic system is temporarily shut down for a predetermined period, the second count is incremented, and the first count is re-initialized. The electro-kinetic system restarts after the predetermined period. When the second count reaches a second count threshold, the electro-kinetic system is shut-down until a reset condition is satisfied.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: January 10, 2006
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau, Andrew J. Parker, Greg S. Snyder, Edward C. McKinney, Jr.
  • Patent number: 6974560
    Abstract: An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector electrodes, and a high voltage generator. The device can also include a third or leading or focus electrode located upstream of the first array of emitter electrodes, and/or a trailing electrode located downstream of the second array of collector electrodes, and/or an interstitial electrode located between collector electrodes, and/or an enhanced emitter electrode with an enhanced length in order to increase emissivity.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: December 13, 2005
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau, Andrew J. Parker, Tristan M. Christianson, Gregory S. Snyder, Edward C. McKinney, Jr.
  • Patent number: 6972057
    Abstract: Methods for cleaning a first group of electrodes contained within an air conditioner are provided. A second group of electrodes within the air conditioner has a cleaning device fastened therewith. The cleaning device engages the first group of electrodes. A method includes removing the second group of electrodes from the air conditioner, and replacing the second group of electrodes back into the air conditioner.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: December 6, 2005
    Assignee: Sharper Image Corporation
    Inventors: Shek Fai Lau, Jimmy Luther Lee, Andrew J. Parker
  • Patent number: 6953556
    Abstract: An air conditioner includes an ion generator that provides ions and safe amounts of ozone. The ion generator includes a high voltage generator that provides a voltage potential difference between first and second electrode arrays. At least one of the first and second arrays is removable from the housing for cleaning.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: October 11, 2005
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau
  • Patent number: 6911186
    Abstract: An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector electrodes, and a high voltage generator. The device can also include a third or leading or focus electrode located upstream of the first array of emitter electrodes, and/or a trailing electrode located downstream of the second array of collector electrodes, and/or an interstitial electrode located between collector electrodes, and/or an enhanced emitter electrode with an enhanced length in order to increase emissivity.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: June 28, 2005
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau, Andrew J. Parker, Tristan M. Christianson, Gregory S. Snyder, Edward C. McKinney, Jr.
  • Patent number: 6908501
    Abstract: An air conditioner with a cleaning member having an opening, through which a wire-like electrode passes. The member is moved along the wire to frictionally clean the wire-like electrode when a collector electrode array is moved. A lifting arm is mounted to the collector electrode. The lifting arm can move the member to clean the wire-like electrode as the collector electrode is moved (e.g., removed from the air conditioner for cleaning).
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: June 21, 2005
    Assignee: Sharper Image Corporation
    Inventors: John Paul Reeves, Shek Fai Lau, Andrew J. Parker
  • Patent number: 6896853
    Abstract: A personal electro-kinetic electro-static air conditioner includes a self-contained ion generator that provides electro-kinetically moved air with ions and safe amounts of ozone, and includes a water retaining element to increase humidity of the output air flow. The ion generator includes a high voltage pulse generator whose output pulses are coupled between first and second electrode arrays. Preferably the first electrode array includes first and second pointed electrodes, and the second electrode array includes annular-like electrodes having a central opening coaxial with the associated pointed electrode. The surface of the annular-like electrodes is smooth and continuous through the opening and into a collar region through which the air flows. A water retaining member is disposed surrounding the output airflow to increase humidity of the output air, which is substantially cleansed of particulate matter, and contains safe amounts of ozone.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 24, 2005
    Assignee: Sharper Image Corporation
    Inventors: Shek Fai Lau, Charles E. Taylor
  • Patent number: 6863869
    Abstract: A system massages a user's feet and generates an electro-kinetic airflow that contains safe amounts of ozone that can deodorize the user's feet or socks. The system includes an ion generator comprising a high voltage pulse generator whose output pulses are coupled between left and right first and second electrode arrays. Preferably the first electrode array includes first and second pointed electrodes, and the second electrode array includes annular-like electrodes having a central opening coaxial with the associated pointed electrode. Preferably the annular-like electrodes are formed from a single sheet of metal by extrusion or punching such that the surface of the annular-like electrodes is smooth and continuous through the opening and into a collar region through which the air flows. Particulate matter in the ambient air electrostatically adheres to the smooth continuous surface of the annular-like electrodes.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: March 8, 2005
    Assignee: Sharper Image Corporation
    Inventors: Shek Fai Lau, Andrew Parker
  • Patent number: 6865447
    Abstract: A robot which incorporates a body, and sensors that allow the robot to interact with objects in the room, and prevents the robot from traveling off an edge or bumping into obstacles. A driving mechanism moves the robot along a surface. An edge detection system includes a plurality of infrared emitters each directed at a different angle with respect to the surface. The emitters alternately emitting signals such that only one of the emitters emits a signal at one time. A signal receiving device detects signals emitted by the infrared emitters after the signals have been reflected. The edge detection system detects an edge based on feedback received from the signal receiving device.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: March 8, 2005
    Assignee: Sharper Image Corporation
    Inventors: Shek Fai Lau, John Paul Reeves
  • Publication number: 20050010331
    Abstract: A robot cleaner is described that cleans a room using a serpentine room clean and a serpentine localized clean. Sensors can include an object following sensor, a stairway detector and bumper sensors.
    Type: Application
    Filed: March 11, 2004
    Publication date: January 13, 2005
    Inventors: Charles Taylor, Andrew Parker, Shek Fai Lau, Eric Blair, Andrew Heninger, Eric Ng
  • Publication number: 20050000543
    Abstract: A robot cleaner is described that cleans a room using a serpentine room clean and a serpentine localized clean. Sensors can include an object following sensor, a stairway detector and bumper sensors.
    Type: Application
    Filed: March 11, 2004
    Publication date: January 6, 2005
    Inventors: Charles Taylor, Andrew Parker, Shek Fai Lau, Eric Blair, Andrew Heninger, Eric Ng
  • Publication number: 20040251909
    Abstract: Systems and methods are provided for monitoring and suppressing arcing between a first electrode and a second electrode of an electro-kinetic system. A current (or voltage) associated with the electro-kinetic system is monitored in order to adjust a first count and a second count. Each time a monitored value reaches a threshold, the first count is incremented. Each time the first count reaches a first count threshold, the electro-kinetic system is temporarily shut down for a predetermined period, the second count is incremented, and the first count is re-initialized. The electro-kinetic system restarts after the predetermined period. When the second count reaches a second count threshold, the electro-kinetic system is shut-down until a reset condition is satisfied.
    Type: Application
    Filed: July 23, 2003
    Publication date: December 16, 2004
    Applicant: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau, Andrew J. Parker, Greg S. Snyder, Edward C. McKinney
  • Publication number: 20040251124
    Abstract: Systems and methods are provided for compensating for variations in line voltages the power an electro-kinetic air transporter and conditioner device. The electro-kinetic air transporter and conditioner device includes a high voltage generator that provides a potential difference between at least one emitter electrode and at least one collector electrode. The high voltage generator is driven by both a DC voltage obtained from an AC voltage source, and a low voltage pulse signal. The DC voltage is stepped down to produce a voltage sense signal indicative of a level of AC voltage source. The voltage sense signal is monitored. At least one of a pulse width, duty cycle and frequency of the low voltage pulse signal is adjusted, based on the monitored voltage sense signal, in order to substantially maintain the potential difference at a desired level.
    Type: Application
    Filed: September 15, 2003
    Publication date: December 16, 2004
    Applicant: Sharper Image Corporation
    Inventor: Shek Fai Lau
  • Publication number: 20040244138
    Abstract: A robot cleaner is described that includes a germicidal ultraviolet lamp. In one embodiment, a cleaning pad is used with the robot cleaner.
    Type: Application
    Filed: March 11, 2004
    Publication date: December 9, 2004
    Inventors: Charles E. Taylor, Andrew J. Parker, Shek Fai Lau, Eric C. Blair, Andrew Heninger, Eric Ng
  • Patent number: 6827088
    Abstract: A brush includes a self-contained ion generator that subjects material being brushed to an outflow of ionized air containing safe amounts of ozone. The ion generator includes a high voltage pulse generator whose output pulses are coupled between first and second electrodes. An outflow of ionized air and ozone is directed between the brush bristles onto the material being brushed.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: December 7, 2004
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Shek Fai Lau
  • Publication number: 20040237787
    Abstract: An air conditioner with a cleaning member having an opening, through which a wire-like electrode passes. The member is moved along the wire to frictionally clean the wire-like electrode when a collector electrode array is moved. A lifting arm is mounted to the collector electrode. The lifting arm can move the member to clean the wire-like electrode as the collector electrode is moved (e.g., removed from the air conditioner for cleaning).
    Type: Application
    Filed: April 30, 2004
    Publication date: December 2, 2004
    Applicant: Sharper Image Corporation
    Inventors: John Paul Reeves, Shek Fai Lau, Andrew J. Parker
  • Publication number: 20040236468
    Abstract: A robot cleaner is described that cleans a room using a serpentine room clean and a serpentine localized clean. Sensors can include an object following sensor, a stairway detector and bumper sensors.
    Type: Application
    Filed: March 11, 2004
    Publication date: November 25, 2004
    Inventors: Charles E. Taylor, Andrew J. Parker, Shek Fai Lau, Eric C. Blair, Andrew Heninger, Eric Ng
  • Publication number: 20040226447
    Abstract: An electro-kinetic electro-static air conditioner with a bead member having a bore, through which a wire-like electrode passes. The bead is moved along the wire to frictionally clean the wire-like electrode when an electrode array is removed. A bead lifting arm is mounted to the electrode array. The bead lifting arm can move the bead to clean the electrode as the electrode array is removed from the air conditioner for cleaning. The electro-kinetic electro-static air conditioner has insulated parts which protect against high voltage arcing and conductive deposits relative to the electrodes.
    Type: Application
    Filed: April 12, 2004
    Publication date: November 18, 2004
    Applicant: Sharper Image Corporation
    Inventors: Shek Fai Lau, Andrew Parker, Gregory S. Snyder, John Paul Reeves
  • Publication number: 20040220698
    Abstract: A robot uses an infrared sensor including an infrared light source which produces pulses of infrared light. Optics focus reflections of the infrared light pulses from different portions of the environment of the robot to different detectors in a 2D array of detectors. The detectors produce an indication of the distance to the closest object in an associated portion of the environment. The robot can use the indications to determine features in the environment. The robot can be controlled to avoid these features.
    Type: Application
    Filed: March 11, 2004
    Publication date: November 4, 2004
    Inventors: Charles E. Taylor, Andrew J. Parker, Shek Fai Lau, Eric C. Blair, Andrew Heninger, Eric Ng, Patricia I. Brenner