Patents by Inventor Leo Lam
Leo Lam 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: 10193848Abstract: A system and related method for the exchange of information, data and instructions between one or more network administrators and one or more network infrastructure devices via one or more media exchanges. Devices are managed using a social media agent including a session agent that translates media messages into network device content and vice versa while maintaining context. Particular media interfaces may be selected for messaging dependent upon the particular message to be exchanged. Shorthand may be used to facilitate messaging through media of interest.Type: GrantFiled: January 19, 2017Date of Patent: January 29, 2019Assignee: Extreme Networks, Inc.Inventors: Vala Afshar, Leo Lam, Douglas Hyde, Jamie Woodhead, Michael Lam, Richard Graham
-
Publication number: 20170201484Abstract: A system and related method for the exchange of information, data and instructions between one or more network administrators and one or more network infrastructure devices via one or more media exchanges. Devices are managed using a social media agent including a session agent that translates media messages into network device content and vice versa while maintaining context. Particular media interfaces may be selected for messaging dependent upon the particular message to be exchanged. Shorthand may be used to facilitate messaging through media of interest.Type: ApplicationFiled: January 19, 2017Publication date: July 13, 2017Inventors: Vala Afshar, Leo Lam, Douglas Hyde, Jamie Woodhead, Michael Lam, Richard Graham
-
Patent number: 9576270Abstract: A system and related method for the exchange of information, data and instructions between one or more network administrators and one or more network infrastructure devices via one or more media exchanges. Devices are managed using a social media agent including a session agent that translates media messages into network device content and vice versa while maintaining context. Particular media interfaces may be selected for messaging dependent upon the particular message to be exchanged. Shorthand may be used to facilitate messaging through media of interest.Type: GrantFiled: May 7, 2012Date of Patent: February 21, 2017Assignee: Extreme Networks, Inc.Inventors: Vala Afshar, Leo Lam, Douglas Hyde, Jamie Woodhead, Michael Lam, Richard Graham
-
Publication number: 20120216615Abstract: A method of measuring acceleration using an optical sensor. In the optical sensor, acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output. The sensor can be coupled to a high-speed interferometric interrogator through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator.Type: ApplicationFiled: May 4, 2012Publication date: August 30, 2012Applicant: US Seismic Systems, Inc.Inventors: James K. Andersen, Eric Lee Goldner, Leo Lam, William Morey, Ira Jeffrey Bush, Gerald Baker, Agop Cherbettchian
-
Patent number: 8240207Abstract: An optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output. The sensor can be coupled to a high-speed interferometric interrogator through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator. A method of measuring acceleration uses the sensor.Type: GrantFiled: July 26, 2011Date of Patent: August 14, 2012Assignee: US Seismic Systems, Inc.Inventors: James K. Andersen, Eric Lee Goldner, Leo Lam, William Morey, Ira Jeffrey Bush, Gerald Baker, Agop Cherbettchian
-
Publication number: 20110277548Abstract: An optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output. The sensor can be coupled to a high-speed interferometric interrogator through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator. A method of measuring acceleration uses the sensor.Type: ApplicationFiled: July 26, 2011Publication date: November 17, 2011Applicant: US Seismic Systems, Inc.Inventors: James K. Andersen, Eric Lee Goldner, Leo Lam, William Morey, Ira Jeffrey Bush, Gerald Baker, Agop Cherbettchian
-
Patent number: 7999946Abstract: A sensor apparatus combines an optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output, coupled to a high speed interferometric interrogator, through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator.Type: GrantFiled: October 16, 2008Date of Patent: August 16, 2011Assignee: US Sensor Systems, Inc.Inventors: James K. Andersen, Eric Lee Goldner, Leo Lam, William Morey, Ira Jeffrey Bush, Gerald Baker, Agop Cherbettchian
-
Publication number: 20100313658Abstract: A sensor apparatus combines an optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output, coupled to a high speed interferometric interrogator, through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator.Type: ApplicationFiled: October 16, 2008Publication date: December 16, 2010Inventors: James K. Andersen, Eric Lee Goldner, Leo Lam, William Morey, Ira Jeffrey Bush, Gerald Baker, Agop Cherbettchian
-
Publication number: 20090092351Abstract: A method for optimizing the architecture of a linear sensor array using WDM-TDM technology and stabilizing the reflectivity spectral profile of the fiber Bragg gratings of the sensors against the influence of environmental factors such as pressure and temperature is provided. The method includes stripping a portion of the foamed coating on the exterior of an optical fiber in the region of the fiber Bragg grating to thin the coating in the region of the grating. After the coating is stripped and the optical fiber cleaned, the area of stripped fiber is recoated with an unvoided plastic.Type: ApplicationFiled: December 8, 2006Publication date: April 9, 2009Applicant: SABEUS, INC.Inventors: Eric Lee Goldner, Leo Lam, Graham Martin, Kevin Ryu
-
Patent number: 6868206Abstract: A collimator array is disclosed that carries forward its alignment characteristics to optical devices that incorporate it. Little, if any active alignment need be performed in the manufacturing of such optical devices, such as switching arrays and optical add/drop arrays that employ a plurality of such collimator arrays in each device. The collimator array includes a fiber array having a plurality of regularly spaced optical fibers such that an output axis of each optical fiber has a predetermined spatial position and orientation with respect to a reference edge of the fiber array. The collimator array also includes an array of lenses separated from the fiber array by an air gap and aligned with the fiber array at an alignment position. The aligned position is such that collimated light exiting each lens has a predetermined position and direction with respect to the reference edge of the fiber array.Type: GrantFiled: March 19, 2003Date of Patent: March 15, 2005Assignee: Chromux Technologies, Inc.Inventors: Graham Martin, Fritz Strohkendl, Leo Lam, Tallis Y. Chang
-
Patent number: 6856735Abstract: A tap coupler device for an optical array is formed either in a waveguide structure or in a V block in which a fiber array may be mounted. The tap coupler device may include a substrate with main and tap waveguides formed therein, and waveguide tap couplers formed in the substrate for diverting a portion of the optical signal from the main waveguides to corresponding tap waveguides. Another variation includes a substrate including waveguides, with the surface of the substrate where the waveguides end inclined to reflect a portion of the signals in the waveguides toward the top surface of the substrate. Yet another variation includes an input V block having input fibers. The surface of the V block where the input fibers terminate is inclined to reflect a portion of light signals from the input fibers toward the top surface of the V block.Type: GrantFiled: November 6, 2001Date of Patent: February 15, 2005Assignee: Chromux Technologies, Inc.Inventors: Tallis Y. Chang, David B. Hall, Leo Lam
-
Publication number: 20040184729Abstract: A collimator array is disclosed that carries forward its alignment characteristics to optical devices that incorporate it. Little, if any active alignment need be performed in the manufacturing of such optical devices, such as switching arrays and optical add/drop arrays that employ a plurality of such collimator arrays in each device. The collimator array includes a fiber array having a plurality of regularly spaced optical fibers such that an output axis of each optical fiber has a predetermined spatial position and orientation with respect to a reference edge of the fiber array. The collimator array also includes an array of lenses separated from the fiber array by an air gap and aligned with the fiber array at an alignment position. The aligned position is such that collimated light exiting each lens has a predetermined position and direction with respect to the reference edge of the fiber array.Type: ApplicationFiled: March 19, 2003Publication date: September 23, 2004Applicant: Chromux Technologies, Inc.Inventors: Graham Martin, Fritz Strohkendl, Leo Lam, Tallis Y. Chang
-
Patent number: 6618519Abstract: An assembly that could be used either as a switch or an attenuator includes two or more optical channels defined by lithography within a substrate. The two or more optical channels are positioned so that the ends of the optical channels are at or near an edge of the substrate. A moveable MEMS mirror is positioned near the edge of the substrate and the openings, with the face of the mirror positioned to receive an optical signal from one of the optical channels. The mirror can direct an optical signal from one of the optical channels into another of the optical channels. Mirror position can be changed to alter the path of the optical signal and to change the coupling between the optical channels. In this way, the assembly of optical channels within the substrate and the MEMS mirror can act as a switch or as an attenuator.Type: GrantFiled: July 16, 2001Date of Patent: September 9, 2003Assignee: Chromux Technologies, Inc.Inventors: Tallis Y. Chang, Leo Lam, Graham Martin
-
Publication number: 20030086651Abstract: A tap coupler device for an optical array is formed either in a waveguide structure or in a V block in which a fiber array may be mounted. The tap coupler device may include a substrate with main and tap waveguides formed therein, and waveguide tap couplers formed in the substrate for diverting a portion of the optical signal from the main waveguides to corresponding tap waveguides. Another variation includes a substrate including waveguides, with the surface of the substrate where the waveguides end inclined to reflect a portion of the signals in the waveguides toward the top surface of the substrate. Yet another variation includes an input V block having input fibers. The surface of the V block where the input fibers terminate is inclined to reflect a portion of light signals from the input fibers toward the top surface of the V block.Type: ApplicationFiled: November 6, 2001Publication date: May 8, 2003Applicant: Chromux Technologies, Inc.Inventors: Tallis Y. Chang, David B. Hall, Leo Lam
-
Publication number: 20030012509Abstract: An assembly that could be used either as a switch or an attenuator includes two or more optical channels defined by lithography within a substrate. The two or more optical channels are positioned so that the ends of the optical channels are at or near an edge of the substrate. A moveable MEMS mirror is positioned near the edge of the substrate and the openings, with the face of the mirror positioned to receive an optical signal from one of the optical channels. The mirror can direct an optical signal from one of the optical channels into another of the optical channels. Mirror position can be changed to alter the path of the optical signal and to change the coupling between the optical channels. In this way, the assembly of optical channels within the substrate and the MEMS mirror can act as a switch or as an attenuator.Type: ApplicationFiled: July 16, 2001Publication date: January 16, 2003Applicant: Chromux Technologies, IncInventors: Tallis Y. Chang, Leo Lam, Graham Martin
-
Patent number: 6447653Abstract: The present invention provides a method for shaping a mask to reduce coating non-uniformity in the radial direction. A test run of the ion beam sputtering system coats a stationary glass plate having the same area and shape as the platen. The resulting coating thickness is measured across the surface of the glass plate and plotted as a function of position. This is the plot of the flux distribution. The coating rate pattern is determined by coating thickness by coating time. The desired width of the mask, which takes the form of a segment of a radial band is adjusted to obtain the desired average coating rate for the entire segment, masked and unmasked. This is repeated for each radial band. All these radial widths put together design the functional form of the mask, the use of which provides a uniform coating of the platen in a radial direction.Type: GrantFiled: October 11, 2000Date of Patent: September 10, 2002Assignee: Litton Systems Inc.Inventors: William Debley, Leo Lam, Radhakrishna Mandyam, Dhirubhai Patel