Michael L Leung

US Patent:

6756925, Jun 29, 2004

Filed:

Apr 18, 2003

Appl. No.:

10/418841

Inventors:

Michael Leung - Lomita CA
Adrian Guoping Sun - Torrance CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H03M 100

US Classification:

341133, 341155, 375376, 713400, 331 11, 331 12

Abstract:

A Rapid Single-Flux-Quantum (âRSFQâ) encoder output interface device is provided. The RSFQ output interface device includes a variable phase multi-junction voltage controlled oscillator (VCO) that provides multiple clock signals having similar frequencies based on a DC bias current setting. The multiple clock signals are phase shifted from one other based on a flux bias current setting. The clock signals are then mixed together according to logic states of a data stream to provide an encoded output data stream. The encoded output data stream can be in a phase shifted keying (PSK) format. The PSK format can be provided in binary, quadrature or other PSK formats. The Single-Flux-Quantum (SFQ) voltage pulses of the encoded output data stream are converted to a voltage level appropriate for transmitting over a wire.

US Patent:

7712437, May 11, 2010

Filed:

Sep 18, 2006

Appl. No.:

11/522719

Inventors:

Michael Leung - Pomona CA, US

Assignee:

Launchlab, Inc. - Los Angeles CA

International Classification:

A01K 1/035

US Classification:

119 285, 119482, 119497

Abstract:

The present invention relates to a mobile pet bed wherein the top and bottom units of the mobile pet bed are reversibly attached to each other. When the top unit is removed from the bottom unit the mobile pet bed functions similarly to a traditional pet bed. When the top unit is attached to the bottom unit the mobile pet bed functions as a pet carrier. Additionally, the top unit of the mobile pet bed has a door portion that can be opened and closed to permit pet ingress and egress as well as permitting easy loading of the mobile pet bed with the animal without necessitating the removal of the top unit from the bottom unit.

US Patent:

8127715, Mar 6, 2012

Filed:

Apr 29, 2010

Appl. No.:

12/799669

Inventors:

Michael Leung - Pomona CA, US

International Classification:

A01K 1/035

US Classification:

119 285, 119482, 119497

Abstract:

The present invention relates to a mobile pet bed wherein the top and bottom units of the mobile pet bed are reversibly attached to each other. When the top unit is removed from the bottom unit the mobile pet bed functions similarly to a traditional pet bed. When the top unit is attached to the bottom unit the mobile pet bed functions as a pet carrier. Additionally, the top unit of the mobile pet bed has a door portion that can be opened and closed to permit pet ingress and egress as well as permitting easy loading of the mobile pet bed with the animal without necessitating the removal of the top unit from the bottom unit.

US Patent:

D657096, Apr 3, 2012

Filed:

Sep 30, 2010

Appl. No.:

29/370995

Inventors:

Michael Leung - Pomona CA, US

International Classification:

3002

US Classification:

D30108

US Patent:

8347815, Jan 8, 2013

Filed:

Jan 29, 2012

Appl. No.:

13/360749

Inventors:

Michael Leung - Pomona CA, US

International Classification:

A01K 1/015

US Classification:

119 285, 119482, 119497

Abstract:

The present invention relates to a mobile pet bed wherein the top and bottom units of the mobile pet bed are reversibly attached to each other. When the top unit is removed from the bottom unit the mobile pet bed functions similarly to a traditional pet bed. When the top unit is attached to the bottom unit the mobile pet bed functions as a pet carrier. Additionally, the top unit of the mobile pet bed has a door portion that can be opened and closed to permit pet ingress and egress as well as permitting easy loading of the mobile pet bed with the animal without necessitating the removal of the top unit from the bottom unit.

US Patent:

20080245312, Oct 9, 2008

Filed:

Apr 3, 2007

Appl. No.:

11/732347

Inventors:

Michael Leung - Pomona CA, US
Greg Mote - Los Angeles CA, US

International Classification:

B65D 85/50

US Classification:

119497

Abstract:

The invention relates generally to a device designed for the comfort of a pet or other small animal during travel. More specifically, the present invention relates to a device that can function a pet carrier designed and sized for travel on a public or private transportation vehicle that comprises one or more reversibly expandable and collapsible sections that, when expanded, increase the interior space of the pet carrier and, when collapsed, are substantially flush with the sides or top of the carrier to which they are attached.

US Patent:

53311620, Jul 19, 1994

Filed:

Nov 22, 1991

Appl. No.:

7/796555

Inventors:

Arnold H. Silver - Rancho Palos Verdes CA
Michael Leung - Lomita CA
Gregory S. Lee - Mountain View CA
Randy W. Simon - Belmont CA
Robert D. Sandell - Manhattan Beach CA

Assignee:

TRW Inc. - Redondo Beach CA

International Classification:

G01J 142
H01L 3922

US Classification:

2503362

Abstract:

A superconducting infrared photodetector employing SQUID (Superconducting Quantum Interference Device) measurement of fluxon flow in thin superconducting granular films to provide sensitive, low-noise detection of infrared radiation. The superconducting infrared photodetector includes a plurality of superconducting detector elements connected in parallel or series, means for supplying a bias current to the detector elements, and a digital or analog SQUID readout circuit. Each detector element includes a thin granular film of superconducting material which forms a randomly connected array of weakly coupled superconductors. The weakly coupled superconductors promote the formation of oppositely-polarized fluxons, which are driven to opposite sides of the film when subjected to the bias current. Incident radiation causes an increase in this fluxon flow, generating a voltage change. The voltage change is measured by the SQUID readout circuit to provide a sensitive, low-noise measurement of the amount of radiation incident on the detector elements.