Sun Patent Trust

Panasonic Intellectual Property Corporation of America

Panasonic Corporation

Sharp Kabushiki Kaisha Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Apple Inc.

Panasonic Holdings Corporation

Semiconductor Energy Laboratory Co., Ltd.

Other

Sun Patent Trust Tego

Tomohiro Kimura

Mikihiro Ouchi

Yutaka Murakami

Hiroyuki Motozuka

Yoshinobu Matsumura

Yoshio Urabe

Mihail Petrov

Yasuo Harada

Noritaka Iguchi

Naganori Shirakata

Yasuhiro Sugita

Koichiro Tanaka

Frank Herrmann

Kenichi Mori

Kenichiro Hayashi

Peter Klenner

Takayuki Sotoyama

Hiroshi Hayashino

Jean Mugiraneza

Naoki Adachi

Kohji Fujiwara

Hideki Nakahara

Shuya Hosokawa

Yukihiro Omoto

Yasuhiro Uno

Hiroyuki Ogawa

Hisashi Watanabe

Hidekazu Miyairi

Shutai Okamura

Yoshitaka Yamamoto

Hisao Koga

Takenori Sakamoto

Kazuaki Takahashi

Kohhei Tanaka

Hitoshi Takai

Masafumi Ueno

Akio Kurobe

Seiichi Uchida

Ryuzo Yuki

Koji Takinami

Takayuki Nishiyama

Yuji Igata

Sadashi Kageyama

Shigeto Yoshida

Akihiro Tatsuta

Hiroki Furukawa

Masahiro Maki

Akira Kisoda

Mutsuhiko Oishi

Toshiyuki Wakisaka

Shigeo Yoshida

Naoya Shibaike

Yuji Nakai

Hiroshi Oue

Yasuo Nagaishi

Yasuhiro Jinbo

Koji Dairiki

Toshihiro Yanagi

Kazuya Ueda

Toshiyuki Isa

Yuji Tanaka

Atsushi Hirose

Hiroshi Fukushima

Youhei Nakanishi

Kazutoshi Kida

Shinji Yamagishi

Makoto Nakazawa

Masayuki Kanehiro

Keiichi Yamamoto

Kenji Miyanaga

Ippei Kanno

Hiroshi Matsukizono

Miho Yamada

Kazuhide Tomiyasu

Ryo Yonebayashi

Naru Usukura

Osamu Yamada

Tadashi Endo

Masahiro Mitani

Yuhji Yashiro

Toshiki Matsuoka

Akiko Miyazaki

Kazuhiro Ohta

Yoshikazu Hayashi

Tokuaki Kuniyoshi

Takaaki Yokoi

Tetsuya Yagi

Ryosuke Mori

Shohroh Mochida

Mahbub Rashid

Takuto Yasumatsu

Masahiro Hamada

Tomonori Shiomi

Toshiaki Sakurai

Toshiharu Kusumoto

Tetsuo Murata

Makoto Sekitoh

Yuji Ono

Hiroshi Ogata

Keiichi Fukuyama

A communication method includes executing a cyclic block permutation for a codeword generated based on a quasi-cyclic parity-check code including a repeat-accumulate quasi-cyclic low-density parity-check code, where the cyclic block permutation is permutation of cyclic blocks within the codeword, and mapping each bit of the codeword for which the cyclic block permutation is executed to any one of constellation point of a non-uniform constellation.

Communication method and communication device

One coding scheme is selected from a plurality of coding schemes, an information sequence is encoded by using the selected coding scheme, and an obtained encoded sequence is modulated to obtain a modulated signal. The obtained modulated signal is subjected to a phase change and is transmitted. The plurality of coding schemes include at least a first coding scheme and a second coding scheme. The first coding scheme is a coding scheme with a first coding rate for forming a generated first codeword as a first encoded sequence by using a first parity check matrix. The second coding scheme is a coding scheme with a second coding rate obtained after puncturing processing, for generating a second encoded sequence by performing the puncturing processing on a generated second codeword by using a second parity check matrix different from the first parity check matrix. The number of bits of the first encoded sequence is equal to the number of bits of the second encoded sequence.

Transmitter, receiver, transmission method, and reception method

One coding method of a plurality of coding methods including at least a first coding method and a second coding method is selected, an information sequence is encoded by using the selected coding method, and an encoded sequence obtained by performing predetermined processing on the information sequence is modulated and transmitted. The first coding method is a coding method having a first coding rate, for generating a first encoded sequence by performing puncturing processing on a generated first codeword by using a first parity check matrix. The second coding method is a coding method having a second coding rate, for generating a second encoded sequence by performing puncturing processing on a generated second codeword by using a second parity check matrix that is different from the first parity check matrix, the second coding rate after the puncturing process being different from the first coding rate.

Transmitting device for performing an encoding process on an information bit sequence using a coding scheme selected from a coding scheme set

Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.

Transmission method, transmitter apparatus, reception method and receiver apparatus

A support system includes: a container that is deformable; an ER fluid sealed in the container; and a plurality of application electrodes each provided in the container, and the support system further includes a plurality of rigid bodies each firmly fixed to the container.

Support system and flexible display device comprising support system

A transmission device that improves data reception quality includes: a first pilot inserter that inserts a pilot signal into a first precoded signal; a phase changer that applies a phase change of i×Δλ to the second precoded signal, where i is a symbol number and an integer that is greater than or equal to 0; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. Δλ satisfies π/2 radians<Δλ<π radians or π radians<Δλ<3π/2 radians. When the communications scheme is an OFDM scheme, the phase changer and the phase changer apply a phase change, and when the communications scheme is a single-carrier scheme, do not apply a phase change.

Transmission device and transmission method

A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

Method of signal generation and signal generating device

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.

Transmitting apparatus for transmitting an OFDM signal generated by performing IFFT processing on a preamble and one or more subframes into which pilot signals are inserted

Provided is a transmitting device which can expand a communication range when performing multicast/broadcast communication. The transmitting device includes a plurality of transmission antennas, and includes: a signal processor which generates a first baseband signal by modulating data of a first stream, and a second baseband signal by modulating data of a second stream; and a transmitter which generates, from the first baseband signal, first transmission signals having different directivities, generates, from the second baseband signal, second transmission signals having different directivities, and transmits the first transmission signals and the second transmission signals at a same time. When the transmitter has received, from a terminal, a request to transmit the first stream, the transmitter further generates, from the first baseband signal, third transmission signals which are different from the first transmission signals and have different directivities, and transmits the third transmission signals.

Transmitting method, transmitting device, receiving method, and receiving device

An OFDM transmitter and an OFDM receiver respectively transmit and receive N (N≥2, N is an integer) control symbols. For each control symbol, a guard interval time-domain signal is, for example, identical to a signal obtained by frequency-shifting at least a portion of a useful symbol time-domain signal by an amount different from any other symbol, or to a signal obtained by frequency-shifting one or both of a portion and a span of a useful symbol interval time-domain signal different from any other symbol by a predetermined amount.

OFDM transmitter device having a symbol generator for generating non-zero control symbols, and OFDM transmission method including generating non-zero control symbols

Provided are a frame configuring unit configured to configure a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data, and a transmitter which transmits the frame. The frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, a second period in which a plurality of transmission data are transmitted by time division, a third period in which a plurality of transmission data are transmitted by frequency division, and a fourth period in which a plurality of transmission data are transmitted by time division and frequency division.

Transmitting method, receiving method, transmitting apparatus, and receiving apparatus

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data; and transmitting the frame, wherein the frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division, and among the plurality of OFDM symbols, OFDM symbols included in the second period include pilot symbols arranged along a time axis with a predetermined spacing therebetween, and a predetermined number of data symbols.

A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.

Signal generation method, transmission device, reception method, and reception device

Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a precoding weight by a baseband signal after a first mapping and a baseband signal after a second mapping and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.

Broadcast signal transmission method, broadcast signal transmission apparatus, broadcast signal reception method, and broadcast signal reception apparatus

A precoding process is performed on a first baseband signal and a second baseband signal to generate a first precoding signal and a second precoding signal. A pilot signal is inserted into the first precoding signal and phase change is performed on the second precoding signal. A pilot signal is inserted into the phase changed second precoding signal, and phase change is further performed on the phase-changed second precoding signal with the pilot signal inserted.

Integrated circuit

Growing community of inventors

Osaka, Japan

Tomohiro Kimura