1
Philippe Roy, Jun Yu, David S Linden: Methods, apparatus and systems for enhanced synthetic vision and multi-sensor data fusion to improve operational capabilities of unmanned aerial vehicles. Honeywell International, Ingrassia Fisher & Lorenz P C, June 29, 2010: US07747364 (34 worldwide citation)

The invention provides, in some aspects, improved methods, apparatus and systems for unmanned aerial vehicle (UAV) operation that utilize multiple data links between a UAV and a control station in order to transmit control and actionable intelligence data. Such methods, apparatus and systems can be ...


2
Claude Rolland, Jun Yu: Coupling of strongly and weakly guiding waveguides for compact integrated mach zehnder modulators. Northern Telecom, Angela C de Wilton, August 25, 1998: US05799119 (33 worldwide citation)

A Mach Zehnder (MZ) modulator with improved coupling of input and output fibers is provided. The MZ modulator combines the advantages of weakly guided input sections with strongly guided sections to optimize the coupling efficiency and selectivity of the device. Improved coupling between weakly and ...


3
Seoung Su Ha, Jin Won Kang, Jung Hyeon Kim, Se Jun Yu: Socket for testing semiconductor package. Samsung Electronics, Marger Johnson & McCollom P C, September 2, 2008: US07419378 (25 worldwide citation)

Example embodiments of the present invention include a socket for testing a semiconductor package. The socket comprises a body having a through hole. A lower magnet is disposed in a lower region of the through hole, and a first type magnetic pole of the lower magnet is directed upward. An upper magn ...


4
Jun Yu: Configurable chirp Mach-Zehnder optical modulator. Northern Telecom, George MacGregor, July 7, 1998: US05778113 (23 worldwide citation)

A multi-quantum-well Mach-Zehnder optical phase modulator selectively generates positive and negative frequency chirp. The modulator has an asymmetric input y-junction coupler and an asymmetric output y-junction coupler joined by interferometric arms defining two optical paths of unequal length so a ...


5
Jun Yu: Configurable chirp mach-zehnder optical modulator. Nortel Networks Corporation, Angela C de Wilton, November 23, 1999: US05991471 (22 worldwide citation)

A Mach-Zehnder optical modulator is provided having first and second modulation electrodes on respective first and second interferometric arms for receiving modulating electric fields, and the two modulation electrodes are of different lengths, the ratio of the lengths being designed to control the ...


6
Jun Yu, George Horace Brook Thompson, Mark Acton Gibbon, David Owen Yevick, Claude Rolland: Semiconductor modulator with a .pi. shift. Northern Telecom, Foley & Lardner, December 2, 1997: US05694504 (15 worldwide citation)

A MQW semiconductor Mach Zehnder phase modulator is formed by two Y-junctions (12, 32), each having a single waveguide (14) optically coupled with two branch waveguides (18, 20). The branch waveguides of the two Y-juntions are optically coupled in Mach-Zehnder configuration that, under zero bias con ...


7
Joachim Walter Ahner, Jun Yu, Dieter Klaus Weller: Memory array having a layer with electrical conductivity anisotropy. Seagate Technology, Westman Champlin & Kelly, April 11, 2006: US07026676 (11 worldwide citation)

A memory array includes a memory layer that has hysteretic domains with domain axes extending between first and second memory layer surfaces. A conductive layer on the first memory layer surface has anisotropically increased electrical conductivity in a thickness direction. A movable conductive prob ...


8
Jay Jie Deng, Lian S Xie, Jun Yu: Frame switch with serial data processing. Advanced Communication Devices Cororation, Pennie Edmonds, December 21, 1999: US06005863 (11 worldwide citation)

A data frame switching apparatus has number data ports and a port traffic management unit for each port. Each port traffic management unit includes a physical layer unit for receiving and transmitting data frames, a serial shift register for temporarily storing a portion of each received data frame ...


9
Tak Lap Tsui, Jun Yu, Lian Sheng Xie: Simplified ethernet frame switching system architecture without local buffer requirement. Advanced Communication Devices, Bo In Lin, February 12, 2002: US06347089 (10 worldwide citation)

The present invention includes an Ethernet frame switching system for receiving and transmitting data frames from and to a plurality of ports. The frame switching system includes a plurality of port control units for managing the transmission and reception procedural processes with a physical layer ...


10
Jun Yu Lai, Kuei Li Huang, Jui Tang Wang, Chien Chao Tseng, Chao Nan Wu: Routing method and routing path recovery mechanism in wireless sensor network environment. National Chiao Tung University, Muncy Geissler Olds & Lowe PLLC, July 19, 2011: US07983207 (7 worldwide citation)

The present invention discloses an asymmetric routing method and routing path recovery mechanism. The wireless sensor network environment includes at least a management unit, at least a gateway, and mobile nodes. When joining, each mobile node obtains an unique ID code and, additionally, a depth as ...