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596results about How to "Improve scale" patented technology

System and method for updating encryption key for wireless LAN

System for updating an encrypted key, by means of which the WEP of IEEE 802.11 can be applied to a wireless LAN system having plural APs and a large number of STAs. A key management server is LAN-connected to the APs. A set of plural (k) encrypted keys used for wireless communication between the entire APs and STAs is provided and managed monistically. If an encrypted key is updated in the key management server, the updated key is delivered to each of the APs and the STAs.
Owner:NEC CORP

Scaling UPnP v1.0 device eventing using peer groups

Disclosed is a method for scaling and extending the reach of UPnP device discovery and eventing by leveraging the use of a peer-to-peer network infrastructure. Peer-to-peer networking allows for the organization of a set of nodes into a group for efficient exchange of information and the group has an efficient and scalable mechanism for flooding data to all members in it. In one embodiment one PC in a peer group can receive device discovery announcements and subscribe for device event notifications. A discovery proxy and an eventing proxy running on the PC package the announcement and / or notification in a record and proceed to flood it to the group. The group flooding semantics route the notification to the subscribed controllers, which can subsequently take suitable action. Ultimately, this method produces a result whereby device discovery and eventing tasks can be fulfilled by locating the closest peer and obtaining the device announcements and notifications from that peer.
Owner:MICROSOFT TECH LICENSING LLC

Polar modulation transmitter, adaptive distortion compensation processing system, polar modulation transmission method, and adaptive distortion compensation processing method

ActiveUS20100222015A1Low distortion characteristicCircuit scale increaseResonant long antennasAmplifier with control circuitsFrequency spectrumAudio power amplifier
An object of the invention is to provide a polar modulation transmitter that can perform adaptive distortion compensation processing without the need for a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal of a power amplifier. An adaptive operation control section 1501 measures the unbalance amount of an output spectrum of a power amplifier 1 and a coefficient adjustment determination section of the adaptive operation control section 1501 performs iteration control so that if the unbalance amount is equal to or greater than a predetermined threshold value, coefficient information output to a distortion compensation processing circuit 1301 is adjusted and an adjustment is made to distortion compensation processing in the distortion compensation processing circuit 1301 and if the unbalance amount is less than the predetermined threshold value, the coefficient information is maintained, whereby the characteristic change of the power amplifier 1 at the environmental temperature change time can be adaptively compensated for without using a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal from the power amplifier 1.
Owner:PANASONIC CORP

Authentication system and authentication device

An authentication system is provided with a server device for generating a random number used for authentication and check data obtained by encrypting the random number using an encryption key, an authentication device for authenticating a device to be authenticated by transmitting the random number transmitted from the server device to the device to be authenticated and comparing reply data transmitted from the device to be authenticated with check data transmitted from the server device, and the device to be authenticated for encrypting the random number transmitted from the authentication device using the encryption key and transmitting the encrypted random number as reply data.
Owner:PANASONIC CORP

Project optimization system

An automated system (100) and method for optimizing project risk and return from the perspective of the sponsor. The project, project features and feature options are defined using project design system and project financial system data. The expected project outputs are then mapped to matrices of value and risk for the sponsor. The system calculates a value for the project then identifies the mix of features and feature options that maximize expected project value from the perspective of the sponsor. The system also identifies the mix of features and feature options that maximize expected project value while minimizing project risk from other frames.
Owner:SQUARE HALT SOLUTIONS LIMITED LIABILITY +1

Communication navigation system and method, communication center apparatus, communication navigation terminal, program storage device and computer data signal embodied in carrier wave

InactiveUS20030060974A1Scale of apparatus increaseDecrease data volumeInstruments for road network navigationRoad vehicles traffic controlDisplay processingCarrier signal
A communication navigation system is provided with a communication center apparatus (3) and a communication navigation terminal (5), which perform two-way communication on a communication network (1, 2). The communication center apparatus is provided with: a search device (74) for searching for an optimum route with respect to the request of route search from the communication navigation terminal on the basis of information for route search and a communication device (73) for wirelessly transmitting coordinates information at a plurality of positions on this optimum route. The communication navigation terminal is provided with a communication device (38) for receiving the coordinates information and a display processing device (43) for displaying the optimum route on the basis of this received coordinates information.
Owner:INCREMENT P CORP

Liquid crystal display

The liquid crystal display of the present invention comprises a backlight, an anisotropic scattering film having different scattering properties depending on incident angles, a liquid crystal cell comprising liquid crystals sandwiched between two facing substrates, polarizing plates respectively disposed on the backlight side and visual recognition side of the liquid crystal cell, and at least one optical diffusion film on the visual recognition side of the liquid crystal cell. A difference H(θ)−H(0) between the haze H(θ) of the anisotropic scattering film for incident light at a gray scale inversion angle θ of the liquid crystal cell, and the haze H(0) for incident light from the normal direction of this anisotropic scattering film is 5% to 100%, and the anisotropic scattering film is disposed between the backlight and the liquid crystal cell.
Owner:FUJIFILM CORP

Display device and electronic apparatus have the same

ActiveUS20090102760A1Narrow screen frameHigh definition of displayStatic indicating devicesPixel arrayMatrix form
A display device includes a pixel array portion in which sub-pixels each including an electro-optic element, a write transistor for writing a video signal, a hold capacitor for holding the video signal written by the write transistor, and a drive transistor for driving the electro-optic element in accordance with the video signal held in the hold capacitor are disposed in a matrix, and each unit pixel is composed of the plurality of adjacent sub-pixels belonging to a plurality of rows. The display device further includes power source supply lines through which power source potentials different in potential from one another are selectively supplied to the drive transistors. One power source supply line is wired every plural rows.
Owner:JOLED INC
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