Xi Cheng Zhang, Masahiko Tani, Zhiping Jiang, Qin Chen: Terahertz transceivers and methods for emission and detection of terahertz pulses using such transceivers. Rensselaer Polytechnic Institute, RatnerPrestia, January 18, 2005: US06844552 (24 worldwide citation)

A system for emitting and detecting terahertz frequency electromagnetic pulses. The system comprises a single transceiver device, which may be an electro-optic crystal or photoconductive antenna, for both emitting and detecting the pulses. A related method comprises using a single transceiver device ...

Adibettahalli Anand, Qin Chen, Marcio G Siqueira, Tom WeiLiang Chang: Providing configuration information to an endpoint. Cisco Technology, Baker Botts L, December 1, 2009: US07627656 (15 worldwide citation)

Providing configuration information to an endpoint includes receiving at a file server a configuration information request from the endpoint. The configuration information request requests configuration information for the endpoint. The file server establishes whether the endpoint is authorized to r ...

Juntao Wu, Hua Xia, Robert Deveaux, Zhihong Mao, David John Allcock, Qin Chen: Arc flash detection method. General Electric Company, Ann M Agosti, April 10, 2012: US08154730 (8 worldwide citation)

An arc flash detection method includes transmitting light via an optical fiber to a sensor and transmitting light from the sensor that includes components representative of acoustic waves and light for filtering and processing to detect an occurrence of an arc flash.

Zhiping Jiang, Qin Chen, Xie George Xu, Xi Cheng Zhang: Terahertz imaging with dynamic aperture. Rensselaer Polytechnic Institute, RatnerPrestia, May 11, 2004: US06734974 (8 worldwide citation)

A method of improving spatial resolution of a pump-probe terahertz (THz) imaging system for producing an image of an object. The method provides a chopped optical gating beam focused on a semiconductive layer that is either part of the object or a discrete layer placed over the object. The gating be ...

Yong Qin Chen: Cuvette for flow-type particle analyzer. Becton Dickinson and Company, Douglas A Petry, July 31, 2012: US08233146 (5 worldwide citation)

The present invention provides an optical cuvette for use in a flow-type particle analyzer, wherein the cuvette includes a removable flow tube containing a flow channel oriented coaxially.

Uday Shanker Racherla, Qin Chen: Bleaching with polyoxometalates and air or molecular oxygen. Unilever Home & Personal Care USA Division of Conopco, Milton L Honig, June 13, 2000: US06074437 (4 worldwide citation)

A method for bleaching laundry and household surfaces is provided which iudes preparing a wash medium with a bleaching composition incorporating polyoxometalates and being free of any effective amount of a bleaching agent such as hydrogen peroxide, organic peracids, inorganic peracids, organic persa ...

Juntao Wu, Hua Xia, Robert Deveaux, Zhihong Mao, David John Allcock, Qin Chen: Arc flash detection system and method. General Electric Company, Ann M Agosti, October 18, 2011: US08040517 (3 worldwide citation)

A sensor to simultaneously detect light and acoustic waves is presented. The sensor includes one or more optical fibers and a diaphragm disposed near one end of at least one of the one or more optical fibers. The diaphragm is configured to vibrate upon incidence of acoustic waves from an arc flash a ...

Yong Qin Chen: Beam-adjusting optics. Becton Dickinson and Company, Douglas A Petry, August 31, 2010: US07787197 (3 worldwide citation)

The present invention provides an optical analyzer having illumination optics that include a light source, such as a laser or other source, adapted to emit a collimated, or approximately collimated, light beam, a focusing lens that focuses the beam onto a focus spot within a detection region, and be ...

Yong Qin Chen, Fei Zhu: Compensating for chromatic dispersion in optical fibers. Chromatic Micro Optics, Donald E Schreiber, August 29, 2006: US07099531 (2 worldwide citation)

An optical chromatic dispersion compensator (60) betters optical communication system performance. The dispersion compensator (60) includes a collimating means (61) that receives a spatially diverging beam of light from an end of an optical fiber (30). The collimating means (61) converts the spatial ...

Qin Chen, Shichao Song: Spatial light modulator based on metamaterial structure and preparation method thereof. Suzhou Institute of Nano Tech and Nano Sciences Chinese Academy of Sciences, Wang Law Firm, January 17, 2017: US09547185 (1 worldwide citation)

A spatial light modulator based on a metamaterial structure and a preparation method thereof. The spatial light modulator includes an array of optical function elements and a control circuit. The optical function element includes a metamaterial structure formed by a metal nanostructure layer and a m ...