Tdk Corporation

Ntt Docomo, Inc.

Nec Corporation

Nikon Corporation

Headway Technologies, Incorporated

Nippon Yusen Kabushiki Kaisha

Fujikura Limited

Zeon Corporation

Takemoto Yushi Kabushiki Kaisha

Kokan Mining Co., Ltd.

Jfe Mineral Company, Ltd.

Atsushi Yamaguchi

Kei Kikuiri

Kei Hirata

Kimitaka Tsutsumi

Kiyoshi Noguchi

Shingo Miyata

Michitaka Nishiyama

Masashi Sano

Masaaki Nido

Yoshitaka Sasaki

Hiroyuki Ito

Shigeki Tanemura

Kazuki Sato

Tetsuya Roppongi

Masaru Kuramoto

Tetsuya Mino

Seiji Yari

Hideyuki Ukita

Shigeru Yamasaki

Makoto Sato

Hironori Araki

Kenkichi Anagawa

Akitaka Kimura

Masaya Kato

Ryo Kakuta

Masaharu Urabe

Yumiko Yokoyama

Moris Musa Dovek

Akifumi Kamijima

Masahiro Saito

Yuhui Tang

Kenzo Makino

Yue Liu

Shigeru Shoji

Yaguang Wei

Jiun-Ting Lee

Shigeru Ichihara

Hiromichi Umehara

Koichi Otani

Xiaomin Liu

Yoji Nomura

Haruo Sunakawa

Yuji Matsuura

Hiroyuki Tada

Tsuyoshi Kawashima

Ittetsu Kitajima

Koji Shimazawa

Junichi Sato

Naomasa Shiraishi

Yoshihiro Tsuchiya

Satoshi Miura

Kazuo Ishizaki

Yuji Otsuka

Shuichi Okawa

Katsuki Kurihara

Mitsuo Kinoshita

Yosuke Antoku

Atsushi Matsuo

Takashi Wada

Hisayoshi Watanabe

Hitoshi Hatate

Kazuya Maekawa

Minoru Ota

Hideyuki Yatsu

Hideaki Sakamoto

Shin Narushima

Tatsuhiro Nojima

Wakako Okawa

Chiaki Sasaoka

Kesayoshi Amano

Ken Hattori

Masaaki Aoyama

Yuki Nishimura

Yuji Otsubo

Hiroki Aritomo

Tomoo Takahashi

Yoshihiko Maeda

Souhei Horiuchi

Hiroyuki Mitsufuji

Chiaki Yoshizawa

Tatsushi Sugiyama

Yasuhiro Honda

Jun-ichi Hokushin

Takafumi Nanri

Sinichi Hasegawa

Mitsuo c/o Takemoto Yushi Kabushiki K Kinoshita

Hiroyuki c/o Kokan Mining Co Ltd Mitsufuji

Tatsushi c/o Takemoto Yushi Kabushiki K Sugiyama

Tomoo c/o Takemoto Yushi Kabushiki K Takahashi

Chiaki c/o Kokan Mining Co Ltd Yoshizawa

Takashi c/o Kokan Mining Co Ltd Wada

The purpose of the present invention is to reduce distortion a frequency band component encoded with a small number of bits in a time domain and improve quality. An audio decoding device () decodes an encoded audio signal and outputs the audio signal. A decoding unit () decodes an encoded sequence containing an encoded audio signal and obtains a decoded signal. A selective temporal envelope shaping unit () shapes a temporal envelope of a decoded signal in the frequency band on the basis of decoding related information concerning decoding of the encoded sequence.

Audio decoding device, audio encoding device, audio decoding method, audio encoding method, audio decoding program, and audio encoding program

An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.

Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program

An audio signal processing system and method is executed by an audio signal processing device to decode an audio packet to obtain decoded audio and determine an occurrence of a discontinuity occurring with a sudden increase of an amplitude of the decoded audio obtained by decoding the audio packet. The audio packet may be received correctly after an occurrence of a packet loss, and corrected to improve subjective quality of the decoded audio, wherein correcting the discontinuity of the decoded audio comprises causing distances between ISF/LSF parameters corresponding to a frame in which a packet loss has occurred to be equal.

Audio signal discontinuity correction processing system

An objective of the present invention is to correct a temporal envelope shape of a decoded signal with a small information volume and to reduce perceptible distortions. An audio decoding device which decodes a coded audio signal and outputs an audio signal comprises: a coded series analysis unit that analyzes a coded series which contains the coded audio signal; an audio decoding unit that receives from the coded series analysis unit the coded series which contains the coded audio signal and decodes same, obtaining an audio signal; a temporal envelope shape establishment unit that receives information from the coded series analysis unit and/or the audio decoding unit, and, on the basis of the information, establishes a temporal envelope shape of the decoded audio signal; and a temporal envelope correction unit that, on the basis of the temporal envelope shape which is established with the temporal envelope shape establishment unit, corrects the temporal envelope shape of the decoded audio signal and outputs same.

Audio decoding device, audio coding device, audio decoding method, audio coding method, audio decoding program, and audio coding program

An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a discontinuity corrector for correcting the discontinuity of the decoded audio by changing, in a state buffer, a distance between elements of Immittance Spectral Pair/Immittance Spectral Frequency (ISF/LSF) parameters of a past frame.

Audio signal discontinuity processing system

A magnetic head includes a medium facing surface, a coil, a main pole, and a substrate. The main pole includes a first layer, and a second layer lying on the first layer. The first layer includes a thickness-changing portion whose dimension in a direction perpendicular to a top surface of the substrate decreases with decreasing distance to the medium facing surface. At least part of the second layer is located on the thickness-changing portion.

Magnetic head with a main pole including first and second layers and manufacturing method for the same

A manufacturing method for a magnetic head includes the steps of: forming a main pole; forming a spin torque oscillator; and forming a trailing shield. The step of forming the spin torque oscillator includes: a step of forming a layered film; a step of forming an interposition layer; a step of forming a mask; a first etching step of etching a portion of the interposition layer using the mask; a second etching step of etching a portion of the layered film using the mask and the interposition layer as an etching mask; a step of removing the interposition layer and the mask; and a patterning step of patterning the layered film into the spin torque oscillator.

Magnetic head including spin torque oscillator and manufacturing method for the same

A magnetic head includes a main pole, a trailing shield, a spin torque oscillator, and a buffer layer. The buffer layer is interposed between the main pole and the spin torque oscillator. The spin torque oscillator has first and second side surfaces. The first and second side surfaces respectively form first and second angles with respect to a direction perpendicular to a top surface of a substrate. The first and second angles each fall within a range of 0&#xb0; to 10&#xb0;. The buffer layer has third and fourth side surfaces. The third side surface includes a first inclined portion forming a third angle greater than the first angle. The fourth side surface includes a second inclined portion forming a fourth angle greater than the second angle.

An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a side information encoder configured to encode side information about the discontinuity.

Audio signal processing device, audio signal processing method, and audio signal processing program

A magnetic head includes a main pole and a write shield. The write shield includes a bottom shield, a first side shield and a second side shield. The first side shield has first and second sidewalls. The second side shield has third and fourth sidewalls. Each of the second and fourth sidewalls has a top edge farthest from a top surface of a substrate. The top edge of each of the second and fourth sidewalls is parallel to a medium facing surface. A portion of a top surface of the bottom shield, the first sidewall, and the third sidewall define a receiving section to receive a portion of the main pole. The receiving section has a bottom including a first inclined portion, a second inclined portion, and a third inclined portion.

Magnetic head including a main pole and a write shield

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Tokyo, Japan

Atsushi Yamaguchi