Nec Corporation

The Furukawa Electric Co., Ltd.

Uacj Corporation

Sony Mobile Communications Inc.

Sumco Corporation

Sony Corporation

Sony Ericsson Mobile Communications Japan, Inc.

Tokyo Electron Limited

Nokia Corporation

Sony Ericsson Mobile Communications Ab

Invensense, Inc.

Furukawa Automotive Systems Inc.

Nokia Technologies Oy

Sony Group Corporation

Sony Mobile Communications Japan, Inc.

Takashi Nakayama

Kotaro Kitawaki

Hideyuki Hatakeyama

Makoto Yonemitsu

Takuya Murata

Ryo Sakamoto

Yasuo Fujii

Shigeru Umeno

Takeo Katoh

Wataru Kumagai

Kimie Imakawa

Tomoyuki Kabasawa

Mitsuhiro Suzuki

Tatsuo Matsudo

Hajime Akiyama

Hiroki Ota

Toshihiro Nakamura

Shang-Hung Lin

Tomohiro Ohta

David Sachs

Takeshi Uchiyama

Junya Watanabe

Yasuo Koike

Hiroaki Taguchi

Naoki Kitamura

Masakazu Ichikawa

Seigo Koura

Takayuki Kihara

Sadayuki Toda

Takaaki Shiota

Keiichi Okuyama

Eiji Kamiyama

Kazumasa Wakimoto

Steve Nasiri

Kazumi Tanabe

Richard Li

Tomohiro Nakayama

Yu Matsui

Tetsuji Yasuda

Kiyoshi Yokota

Anjia Gu

Wataru Itou

Keisuke Shindo

Akio Shimomura

Kouichiro Takiguchi

Alex Castro

Shunsuke Araki

Toshiaki Takano

Satoshi Horiuchi

A method and device for selecting a beam used in communication in an environment in which massive-MIMO beamforming is performed, to include a base station including: a communication unit configured to form multiple beams and perform communication with a terminal apparatus; and a control unit configured to transmit, to the terminal apparatus, first identification information of a group that is used in communication with the terminal apparatus among the first identification information allocated to groups each of which includes multiple beams to be formed.

Base station, terminal apparatus, communication method and recording medium

There are provided: an aluminum alloy substrate for a magnetic disk, the aluminum alloy substrate including an aluminum alloy including 0.4 to 3.0 mass % of Fe and the balance of Al and unavoidable impurities, in which second phase particles having a longest diameter of 0.5 &#x3bc;m or more and less than 2.0 &#x3bc;m are dispersed at a distribution density of 5000 particles/mmor more; a method for producing the same; and a magnetic disk using the aluminum alloy substrate for a magnetic disk.

Aluminum alloy substrate for magnetic disks, method for producing same, and magnetic disk using said aluminum alloy substrate for magnetic disks

To appropriately select a beam used in communication in an environment in which massive-MIMO beamforming is performed, there is provided a base station including: a communication unit configured to form multiple beams and perform communication with a terminal apparatus; and a control unit configured to transmit, to the terminal apparatus, first identification information of a group that is used in communication with the terminal apparatus among the first identification information allocated to groups each of which includes multiple beams to be formed.

There are provided: an aluminum alloy substrate for a magnetic disk, the aluminum alloy substrate including an aluminum alloy including 0.4 to 3.0 mass % (hereinafter, '%') of Fe, less than 0.10% of Si, less than 0.10% of Mg, and the balance of Al and unavoidable impurities, in which an Al&#x2014;Fe-based intermetallic compound having a longest diameter of 2 &#x3bc;m or more and less than 3 &#x3bc;m is dispersed at a distribution density of 1000 particles/mmor more, and a Mg&#x2014;Si-based intermetallic compound having a longest diameter of 1 &#x3bc;m or more is dispersed at a distribution density of 1 particle/mmor less; a method for producing the same; and a magnetic disk in which an electroless Ni&#x2014;P plating treatment layer and a magnetic layer thereon are disposed on a surface of the aluminum alloy substrate for a magnetic disk.

Aluminum alloy substrate for magnetic disk, method for producing the same, and magnetic disk using aluminum alloy substrate for magnetic disk

[Object] To realize IQ imbalance correction in a more preferable aspect. [Solution] An information processing device including: a calculation unit configured to calculate an error between predetermined reference coordinates on an IQ plane and a signal point of a received predetermined reference signal on a basis of a reception result of the reference signal on which phase modulation or quadrature amplitude modulation is implemented and mapping information of the reference signal; and a generation unit configured to generate correction data for correcting a deviation of a signal point of a received signal on a basis of a calculation result of the error.

Information processing device, method, and program for IQ balance correction

Provided is an aluminium alloy substrate for a magnetic disk, a method for fabricating the substrate, and a magnetic disk composed of the aluminium alloy substrate for a magnetic disk. The substrate contains an aluminium alloy composed of one or more elements selected from a group comprising 0.05 to 3.00 mass % (hereinafter abbreviated as '%') of Fe, 0.05% to 3.00% of Mn, 0.05% to 18.00% of Si, 0.05% to 8.00% of Ni, 0.05% to 3.00% of Cr, and 0.05% to 3.00% of Zr, with a balance of Al and unavoidable impurities. The substrate has a Young modulus of 67 GPa or more in each of the 0&#xb0; direction, 45&#xb0; direction, and 90&#xb0; direction relative to the rolling direction of the substrate.

Aluminium alloy substrate for magnetic disk, method for fabricating the same, and magnetic disk composed of aluminium alloy substrate for magnetic disk

It is possible to realize wireless communication using a directional beam in a more suitable manner. A wireless communication device includes: one or more antenna elements that are configured to control directions of directional beams and perform wireless communication using the directional beams; a detection unit that detects an attitude of at least any one of the one or more antenna elements; and a control unit that sets a state in which a radio signal transmitted using at least a directional beam from a base station is receivable via any one of the one or more antenna elements as a reference state, and controls the wireless communication with the base station using the directional beam according to a change in the attitude from the reference state.

Wireless communication device, control device, and control method

Provided are: an aluminum alloy substrate for a magnetic disk, including an aluminum alloy including 0.4 to 3.0 mass % of Fe with the balance of Al and unavoidable impurities; a method for producing the aluminum alloy substrate for a magnetic disk; and a magnetic disk in which an electroless Ni&#x2014;P plating treatment layer and a magnetic layer formed thereon are disposed on a surface of the aluminum alloy substrate for a magnetic disk.

Aluminum alloy substrate for magnetic disks, method for producing same, and magnetic disk using this aluminum alloy substrate for magnetic disks

Provided are a magnetic disk and a method of fabricating the magnetic disk. The magnetic disk includes an aluminum alloy plate fabricated by a process involving a CC method and a compound removal process, and an electroless Ni&#x2014;P plating layer disposed on the surface of the plate. The aluminum alloy plate is composed of an aluminum alloy containing 0.4 to 3.0 mass % (hereinafter abbreviated simply as '%') of Fe, 0.1% to 3.0% of Mn, 0.005% to 1.000% of Cu, 0.005% to 1.000% of Zn, with a balance of Al and unavoidable impurities. In the magnetic disk, the maximum amplitude of waviness in a wavelength range of 0.4 to 5.0 mm is 5 nm or less, and the maximum amplitude of waviness in a wavelength range of 0.08 to 0.45 mm is 1.5 nm or less.

Magnetic disc, aluminum alloy substrate for magnetic disc, and production method for aluminum alloy substrate

A conductor connection device for joining a plurality of conductors with ultrasonic welding, the conductor connection device comprising: a horn including a contact surface that is brought into contact with the conductors, the horn being configured to be ultrasonically vibrated; a pair of restricting portions configured to be brought into contact with the contact surface and to be relatively movable along the contact surface; and an anvil that is relatively moved toward and away from the contact surface, the horn and the pair of restricting portions being moved relative to the anvil to sandwich the anvil between the pair of restricting portions facing each other, and at least one of the pair of restricting portions being moved toward the other.

Conductor connection device and conductor connection method

Provided is an aluminum alloy substrate for a magnetic disk that includes an aluminum alloy containing 0.4 to 3.0 mass % (hereinafter abbreviated as '%') of Fe, 0.005% to 1.000% of Cu, and 0.005% to 1.000% of Zn, with a balance of Al and unavoidable impurities. This substrate has a ratio A/B of 0.70 or more, where A indicates a distribution density of Al&#x2014;Fe intermetallic compound particles having maximum diameters of 10 &#x3bc;m or more and less than 16 &#x3bc;m, and B indicates a distribution density of Al&#x2014;Fe intermetallic compound particles having maximum diameters of 10 &#x3bc;m or more. The distribution density of Al&#x2014;Fe intermetallic compound particles having maximum diameters of 40 &#x3bc;m or more is at most one per square millimeter. Also provided are a method of fabricating this aluminum alloy substrate for a magnetic disk and a magnetic disk composed of the aluminum alloy substrate for a magnetic disk.

Aluminum-alloy substrate for magnetic disk, method for manufacturing same and magnetic disk employing said aluminum-alloy substrate for magnetic disk

There are provided: an aluminum alloy magnetic disk substrate including: an aluminum alloy base material including an aluminum alloy containing 0.4 to 3.0 mass % (hereinafter, simply referred to as '%') of Fe, 0.1 to 3.0% of Mn, 0.005 to 1.000% of Cu, and 0.005 to 1.000% of Zn, with the balance of Al and unavoidable impurities; and an electroless Ni&#x2014;P plated layer formed on a surface of the aluminum alloy base material, in which the peak value (BLEI) of Fe emission intensity at an interface between the electroless Ni&#x2014;P plated layer and the aluminum alloy base material, as determined by a glow discharge optical emission spectrometry device, is lower than Fe emission intensity (AlEI) in the interior of the aluminum alloy base material, as determined by the glow discharge optical emission spectrometry device; and a method for producing the aluminum alloy magnetic disk substrate.

Aluminum alloy magnetic disk substrate and method for producing same

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Tokyo, Japan

Takashi Nakayama