Nec Corporation

Takashi Yoshinaga

Hiroaki Aminaka

Kazushi Muraoka

Taichi Ohtsuji

Norio Yamagaki

Dai Kanetomo

Hideki Sasaki

Toshihide Kuriyama

Kenji Kataoka

Masaharu Imazato

Michihito Otsuki

Yuji Muramatsu

Toshio Kaku

Hidenori Muramatsu

A tracking support system includes a position calculating section connected with a plurality of cameras arranged in a predetermined monitoring area to transmit video images imaged by the plurality of cameras and configured to calculate a position of the tracking target based on the video images received from the plurality of cameras; a tracker selecting section configured to select a tracker to be instructed to track the tracking target, based on position information of the terminal received from the terminal and the calculated position of the tracking target; and an information transmitting section configured to transmit information of a distance between the tracking target and the terminal during the tracking of the tracking target to the terminal carried by the selected tracker.

Tracking support apparatus, terminal, tracking support system, tracking support method and program

A video collection system includes: a plurality of terminals; and a video collection server that requests at least one of the plurality of terminals to perform information provision. The video collection server includes a calculation part, a determination part, and a request part. The calculation part calculates, based on information acquired from a camera(s), a first area(s) imaged by the camera(s). The determination part determines a second area(s) as an information provision target(s) based on a location(s) of the first area(s). The request part selects, based on respective locations of the plurality of terminals and a location(s) of the second area(s), a terminal(s) to be requested to perform the information provision from the plurality of terminals and requests the selected terminal(s) to provide video data of the second area(s).

Video collection system, video collection server, video collection method, and program

A multilayer printed circuit board, including: a signal interconnection which transmits and receives an electrical signal between electronic components; a ground interconnection connected to a ground of a circuit; a power interconnection connected to a power layer to supply power to electronic components; at least one ground layer installed in an inner layer; at least one clearance which passes through the ground layer; and a ground via which connects the ground interconnection with the ground layer. The signal interconnection and the ground interconnection or the signal interconnection and the power interconnection are installed in a pair, and a pair of interconnection vias for interlayer connection are inserted through the clearance installed in the ground layer so that one of the pair of interconnection vias is connected to the ground layer by the ground interconnection.

Multilayer printed circuit board

A calculation method of electromagnetic interference reduction through spectrum diffusion that is for reducing the electromagnetic interference, in which, when a center frequency of a measurement bandwidth is changed so that a spectrum having the maximum amplitude is included in the measurement bandwidth, of a plurality of spectra generated from the frequency spectrum of an electromagnetic interference signal through the spectrum diffusion, the amplitudes of all spectra included in the measurement bandwidth are added up and the maximum total sum of the amplitudes is divided by the amplitude of the electromagnetic interference signal, hence to estimate the electromagnetic interference reduction.

Electromagnetic interference reduction calculation method, device, and program, and its electronic circuit

Second ground plane (), substantially rectangular in shape, is connected to first ground plane () mounted with a data processing circuit, and radio communication circuit () makes radio communications at communication wavelength &#x3bb;. A portion of second ground plane () from ground connecting means () to ground connecting means () along continuous edges of second ground plane () acts as an antenna. However, since the longest distance a between a plurality of ground connecting means () along the continuous edges of second ground plane () satisfies 'a&#x3c;&#x3bb;/2&#x3b1;' (where &#x3b1; is a coefficient equal to or larger than '1'), its resonant frequency is sufficiently higher than the communication frequency of the radio communication circuit.

Data processing terminal, terminal designing apparatus and method, computer program, and information storing medium

An EMI (ElectroMagnetic Interference) shield filter for a display unit has a conductive mesh in which a plurality of first and second conductors are arranged in horizontal and vertical directions. A gap in one of the first and second conductors is set larger than that in the other one of the first and second conductors that attenuate a field strength of higher one of horizontal and vertical polarized components of EMI of the display unit, so that the horizontal and vertical polarized components have substantially the same field strength after attenuation. A display apparatus having this EMI shield filter is also disclosed.

Growing community of inventors

Tokyo, Japan

Takashi Yoshinaga