Ingemar J Cox, Joseph J Kilian, Talal G Shamoon: Secure spread spectrum watermarking for multimedia data. NEC Research Institute, Philip J Feig, July 27, 1999: US05930369 (523 worldwide citation)

Digital watermarking of audio, image, video or multimedia data is achieved by inserting the watermark into the perceptually significant components of a decomposition of the data in a manner so as to be visually imperceptible. In a preferred method, a frequency spectral image of the data, preferably ...

Ingemar J Cox, Matthew L Miller, Kazuyoshi Tanaka, Yutaka Wakasu: Digital watermarking. NEC Research Institute, NEC Corporation, Philip J Feig, June 22, 1999: US05915027 (490 worldwide citation)

Digital watermarking of data, including image, video and audio data, is performed by repeatedly inserting the watermark into subregions or subimages of the data. Similarly, the watermark is repeatedly extracted from the subregions of the data.

Narushi Ito: Biosensor with a data memory. NEC Corporation, Laff Whitesel Conte & Saret, January 24, 1995: US05384028 (437 worldwide citation)

A biosensor is provided with a memory for storing data including a data and a time of fabricating the biosensor, a lot number of the biosensor, an effective period of the biosensor, the biosensor characteristics, and administrative data of the biosensor. The memory may store additional data such as ...

Toru Matsumoto, Masako Furusawa, Narushi Ito, Shinya Nakamoto: Biosensor. NEC Corporation, Sughrue Mion Zinn Macpeak & Seas PLLC, August 18, 1998: US05795774 (417 worldwide citation)

A drop in measurement accuracy of biosensors, due to interferents in a measurement sample is avoided by an arrangement wherein: a hydrogen peroxide electrode 2 is formed on an insulated base 1, and then a .gamma.-aminopropyltriethoxysilane film 3, an acetylcellulose film 4, a perfluorocarbonsulfonic ...

Wen Syan Li, Quoc Vu: System for personalizing, organizing and managing web information. NEC Corporation, Sughrue Mion PLLC, October 7, 2003: US06631496 (380 worldwide citation)

The present invention provides a hypermedia database for managing bookmarks, which allows a user to organize hypertext documents for querying, navigating, sharing and viewing. In addition, the hypermedia database also provides access control to the information in the database. The hypermedia databas ...

Wen Syan Li: Advanced web bookmark database system. NEC Corporation, Sughrue Mion PLLC, April 20, 2004: US06725227 (376 worldwide citation)

An advanced bookmark database system provides query, re-organization, information sharing, view, and access control capabilities to manage bookmarks. In one embodiment of the bookmark database system of the present invention, HTML document parsing, keyword extraction, and HTML/VRML document generati ...

Ingemar J Cox: Spread spectrum watermark for embedded signalling. NEC Research Institute, Philip J Feig, December 8, 1998: US05848155 (355 worldwide citation)

A watermark is embedded into audio/video/image/multimedia data using spread spectrum methodology. The watermark is extracted from watermarked data without the use of an original or unwatermarked version of the data by using spatial or temporal local averaging of the frequency coefficients of the wat ...

Shingo Kawashima, Hiroshi Sasaki: Image display device with element driving device for matrix drive of multiple active elements. NEC Corporation, Sughrue Mion Zinn Macpeak & Seas PLLC, July 18, 2000: US06091203 (353 worldwide citation)

An image display device has multiple active elements arranged therein, such as an organic EL (Electro-Luminescence) element to matrix-drives these active elements. In the image display device, when a switching element is turned on with a control signal applied to a control electrode, a control curre ...

Atsushi Marugame: Dual-input image processor for recognizing, isolating, and displaying specific objects from the input images. NEC Corporation, Foley & Lardner, November 30, 1999: US05995649 (310 worldwide citation)

An image processor comprising an image pickup portion to take in an image of an object, a reference point extracting portion that extracts a reference point to be used in object extraction from images taken by the image pickup portion,a corresponding point detecting portion that detects a correspond ...

Atsushi Marugame: Object extraction method and system. NEC Corporation, Scully Scott Murphy & Presser, May 1, 2001: US06226396 (304 worldwide citation)

In an image processing system having a primary image pickup device and a plurality of reference image pickup devices, a feature region consisting of a plurality of feature segments each defined by a pair of feature points is extracted from a primary image. Subsequently, a correspondence point candid ...