Ingemar J Cox, Matthew L Miller, Kazuyoshi Tanaka, Yutaka Wakasu: Digital watermarking. NEC Research Institute, NEC Corporation, Philip J Feig, June 22, 1999: US05915027 (491 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 (442 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 (419 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 (388 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 (378 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 ...

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 (367 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 (312 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 (305 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 ...

Naoyasu Ikeda: Current-dependent light-emitting element drive circuit for use in active matrix display device. NEC Corporation, Whitham Curtis Whitham & McGinn, February 3, 1998: US05714968 (305 worldwide citation)

In a light-emitting element drive circuit in an active matrix display device, at least one current-control transistor controls a current flowing through a light-emitting element. The current-control transistor and the light-emitting element are connected in parallel to each other. A constant current ...

Eitaro Nishigaki: Organic el display device having an improved image quality. NEC Corporation, Foley & Lardner, June 12, 2001: US06246180 (300 worldwide citation)

A drive unit for driving a corresponding one of organic EL elements of an active matrix EL display device includes a blanking switch for blanking the video signal stored in a storage capacitor in each frame period before the start of the next frame period. A drive transistor drives a corresponding E ...