1
Mati Wax, Oliver Hilsenrath, Abraham Bar: Radio transmitter location finding in CDMA wireless communication systems. U S Wireless Corporation, Lumen IPS, June 19, 2001: US06249680 (197 worldwide citation)

A method and apparatus for location finding in a CDMA wireless communication system uses multipath signals in order to accurately determine a transmitter—s location. Direct path and multipath signals from a mobile transmitter arrive at an array of p antennas belonging to a cellular network base stat ...


2
Ravi Narasimhan, Donald C Cox: Method for handoff in wireless communication systems using pattern recognition. The Board of Trustees of the Leland Stamford Junior University, Lumen IPS, May 29, 2001: US06240291 (29 worldwide citation)

A handoff technique for wireless communication systems uses pattern recognition of signal strength data to anticipate handoffs and reduce the total number of handoffs in the system. A criterion for system performance is used in determining the necessity for handoff. A window of signal samples from n ...


3
Guanghai Jin, Jing Zhao: None-mechanical dual stage optical switches. Agiltron, Ron Jacobs, Marek Alboszta, Lumen IPS, June 29, 2004: US06757101 (7 worldwide citation)

The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports. Advantageously, the inventive switches incorporate two-stage polarization rotation to improve isolation depth, as well as temperature and wavele ...


4
Kamvar Sepandar D, Haveliwala Taher H, Jeh Glen, Golub Gene: Improved methods for ranking nodes in large directed graphs. The Board Of Trustees Of The Leland Stanford Junior University, LUMEN IPS, October 14, 2004: WO/2004/088475 (3 worldwide citation)

Techniques for assigning ranks (fig. 6, 630, 670, 680) to nodes in a large linked database (fig. 2) such as world wide web or any other hypermedia database, partition the nodes so that the link matrix (fig. 1) has a predominantly block-diagonal form (fig. 1&2). Within each block (fig. 5), a local ra ...


5
Srikrishna Devabhaktuni, Chari Amalavoyal: Selection of routing paths based upon path quality of a wireless mesh network. Tropos Networks, LUMEN IPS, January 20, 2005: WO/2005/006128 (2 worldwide citation)

The invention includes an apparatus and method for determining an optimal route based upon path quality of routes to an access node of a wireless mesh network. The method includes receiving routing packets at the access node through at least one wireless route. Each routing packet including route in ...


6
Srikrishna Devabhaktuni, Chari Amalavoyal, Hong B William, Arutyunov Roman M: Determining bidirectional path quality within a wireless mesh network. Tropos Networks, Srikrishna Devabhaktuni, Chari Amalavoyal, Hong B William, Arutyunov Roman M, LUMEN IPS, April 27, 2006: WO/2006/044836 (2 worldwide citation)

The invention includes an apparatus and method for communicating link quality information between access nodes. A first step includes a first access node transmitting first routing packets. A second step includes a second access node receiving at least one of the first routing packets over a first d ...


7
Park Byong Ho, Prinz Friedrich B, Liang David H: Tubular compliant mechanisms for ultrasonic imaging systems. The Board Of Trustees Of The Leland Stanford Junior University, LUMEN IPS, April 1, 2004: WO/2004/026105 (2 worldwide citation)

A micromanipulator (200) comprising a tubular structure and a structural compliance mechanism that are formed from a tube made of an elastic and/or superelastic material. Fabricated with laser machining and has no mechanical joints, the micromanipulator (200) can be manipulated in various motions an ...


8
Jing Zhao, Yongjun Shu: Highly stable opto-mechanic switches. Agiltron, Ron Jacobs, Marek Alboszta, Lumen IPS, November 23, 2004: US06823102 (1 worldwide citation)

The present invention provides improved optical switches in which only a spatial beam shifting of a small free space offset is required to direct optical pathways between plural fiber ports. This is achieved by spacing two fibers closely and collimating their beams with one imaging lens for compactn ...


9
Cha Suk Won, Bent Stacey, Holme Tim, Jiang Xirong, Prinz Friedrich B, Saito Yuji: Nanotubular solid oxide fuel cell. The Board Of Trustees Of The Leland Stanford Junior University, Honda Giken Kogyo Kabushiki Kaisha, Cha Suk Won, Bent Stacey, Holme Tim, Jiang Xirong, Prinz Friedrich B, Saito Yuji, LUMEN IPS, January 12, 2006: WO/2006/005066 (1 worldwide citation)

A membrane electrode assembly (MEA) having a nano-­tubular patterned structure and having solid (instead of porous) electrode layers is provided. Increased mechanical strength is provided by the use of solid electrode layers. The electrode layers are sufficiently thin to permit the flow of reactants ...


10
Stephen Latham Goldson, Terry John Braggins, Alan Leedham Hart: Method of an Apparatus for Detecting the Presence of Signature Volatile Compounds From Materials in a Confined Environment. Lumen IPS, November 22, 2007: US20070266771-A1

A capture system to enable volatiles associated with targeted materials located within a confined environment to be trapped over a period of time to enable the volatiles to be concentrated. The capture system comprises a package having a “surface” which is constructed in a manner that it can be loca ...



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