Hitachi-kokusai Electric Inc.

Mitsubishi Electric Corporation

Nec Corporation

Eneos Materials Corporation

Tatsuya Abe

Yoji Nakajima

Hiroyoshi Miyano

Masayuki Takekawa

Takashi Okada

Shingo Itai

Masashi Iida

Keigo Aso

An unmanned mobile vehicle M acquires the line quality of a wireless communication line to each of the corresponding base stations having been measured by each mobile station and transmits the line quality to a control station. The control stationacquires the line quality of a wireless communication line to each of the corresponding mobile stations having been measured by each base station and transmits the line quality to the unmanned mobile vehicle M. When the same communication data is transmitted using two or more wireless communication lines in combination between the control stationand the unmanned mobile vehicle M, the transmitting side of the communication data selects two or more wireless communication lines that are used for the transmission of the communication data, on the basis of the line quality of each wireless communication line having been measured by each base station or each mobile station on the receiving side of the communication data.

Wireless communication system, wireless communication method, and mobile vehicle

Tracking candidate storage meansstores a plurality of candidates for one or more objects to be tracked. Control meanscontrols a likelihood of each of the plurality of candidates. The tracking candidate storage meansstores, for each of the plurality of candidates, label information identifying which object the candidate corresponds to, position information indicating a position of the object, and a likelihood. The control meanscontrols the likelihood of a candidate, according to the label information of one or more other candidates around the candidate determined based on the position information of the candidate.

Object tracking device, object tracking method, and object tracking program

An electrical discharge machining apparatus includes: a surface plate; a machining tank that surrounds the surface plate, retains a machining liquid, and has at least a part that serves as a substantially box-shaped vertically moveable ascent/descent machining tank, the ascent/descent machining tank having an outlet in an ascent/descent inner wall of the ascent/descent machining tank; an ascent/descent device that raises and lowers the ascent/descent machining tank; a sub-tank that receives the machining liquid that overflows from the machining tank; a slit that is provided in an end wall of the sub-tank for allowing a connection member to pass through, the connection member connecting the ascent/descent machining tank and the ascent/descent device; and a seal that is arranged in a gap between the ascent/descent machining tank and an inner wall of the sub-tank and prevents the machining liquid in the machining tank from leaking out into the sub-tank.

Electrical discharge machining apparatus

A wire aspiration device includes a first member having a first curved surface with a projected portion that is in close contact with peripheral surfaces of first and second recovery rollers on one side, a second member having a second curved surface with a projected portion that is in close contact with the peripheral surfaces of the first and second recovery rollers on the other side, and a third member having a through hole formed in a central portion thereof to cause the ejected wire electrode to run in the wire-electrode recovering direction and coupling the first and second members to form two grooves between the first and second curved surfaces to be in contact with the through hole, wherein a fluid spout for spouting a fluid into the through hole in the recovering direction is formed in any of the first, second, and third members.

Wire aspiration device and wire recovery device

A transmitter processes signals to be transmitted. The transmitter reduces the peak power generated in a transmission signal, even when many peaks exist. In the transmitter, the peaks of the transmission target signals are detected, and a peak suppression coefficient for suppressing the detected peaks is generated. The levels of the transmission target signals are suppressed using the peak suppression coefficient generated.

Transmitter

A transmitter is provided which effectively reduces a peak that occurs in transmitting signal electric power. A baseband limiter applies a peak reduction process to digital signals on a plurality of carriers in a baseband. A band limiting filter applies a band limitation process to the digital signal on each of the carriers to which the peak reduction process is applied. Quadrature modulation processing is applied to the digital signal on each of the carriers to which the band limitation process is applied. The digital signals on the carriers to which the quadrature modulation process is applied are added. An intermediate frequency limiter multiplies a signal of the added result by a window function that is weighted depending on the magnitude of the detected peak, and applies a peak reduction process thereto.

Growing community of inventors

Tokyo, Japan

Tatsuya Abe