1
Yasushi Iwane: Multilayer printed wiring board with plurality of ground layers forming separate ground planes. Mitsubishi Denki Kabushiki Kaisha, Rothwell Figg Ernst & Kurz, February 17, 1998: US05719750 (80 worldwide citation)

A printed board 10 is provided with two ground layers 3a, 3b. These ground layers 3a, 3b are electrically insulated inside the printed board. By connecting circuits with different characteristics (low frequency and high frequency, for example) with the different ground layers 3a, 3b, interference of ...


2
Miho Maeda, Mitsuru Mochizuki, Yasushi Iwane, Tetsuya Mishuku, Masaaki Kusano, Ryoichi Fujie, Shigenori Tani, Keiko Tada, Noriyuki Fukui, Michiaki Takano: Mobile communications system and mobile terminal. Mitsubishi Electric Corporation, Oblon Spivak McClelland Maier & Neustadt L, April 3, 2012: US08149749 (42 worldwide citation)

A mobile terminal judges whether or not the mobile terminal is able to make a transition to a DTX period during Active, and, when judging that the mobile terminal is able to make a transition to a DTX period during Active, notifies a base station to that effect. If the base station judges that the m ...


3
Yasushi Iwane: Radio-frequency power amplifier device. Mitsubishi Denki Kabushiki Kaisha, Rothwell Figg Ernst & Kurz, May 4, 1993: US05208550 (28 worldwide citation)

In a radio-frequency power amplifier device, having a radio-frequency power amplifier for an input RF signal, part of the output signal of the amplifier is extracted, and the extracted voltage is compared with a reference voltage to apply a negative feedback to the gain control terminal of the power ...


4
Yasushi Iwane: Automatic output power controller. Mitsubishi Denki Kabushiki Kaisha, Rothwell Figg Ernst & Kurz, May 18, 1993: US05212814 (21 worldwide citation)

An automatic output power controller controls signals output by an amplifier amplifying a modulated wave with its envelope varying due to the modulation so that the mean power becomes constant. An equi-output point extraction circuit extracts timing of the output power of the amplifier becoming a co ...


5
Yasushi Iwane: Quadrature modulation circuit. Mitsubishi Denki Kabushiki Kaisha, Rothwell Figg Ernst & Kurz, February 8, 1994: US05285479 (17 worldwide citation)

A quadrature modulation circuit includes a low pass filter which operates by a time division process for the in-phase channel and quadrature-phase channel, and reduces address requirements data using amplitude symmetry of the wave form and/or using symmetry wave form on the time axis. The capacity o ...


6
Miho Maeda, Mituru Mochizuki, Yasushi Iwane, Taiga Saegusa: Mobile communication system. Mitsubishi Electric Corporation, Oblon Spivak McClelland Maier & Neustadt L, August 19, 2014: US08811252 (12 worldwide citation)

A communication system has three types of cells including, in addition to an MBMS dedicated cell, a unicast cell to and from which a mobile terminal can transmit and receive individual communication data, and a unicast/MBMS-mixed cell which can provide both a service provided by the unicast cell and ...


7
Miho Maeda, Mitsuru Mochizuki, Yasushi Iwane, Yuji Kakehi, Masayuki Nakazawa, Taisei Suemitsu: Mobile communication system. Mitsubishi Electric Corporation, Oblon Spivak McClelland Maier & Neustadt L, January 7, 2014: US08626163 (9 worldwide citation)

A mobile communication system including a mobile terminal, a base station carrying out radio communications with the mobile terminal, and an access management device managing access from the mobile terminal to the base station, which, when an access group including one or more mobile terminals and o ...


8
Miho Maeda, Mitsuru Mochizuki, Taiga Saegusa, Yasushi Iwane: Mobile communication system. Mitsubishi Electric Corporation, Oblon Spivak McClelland Maier & Neustadt L, December 9, 2014: US08908560 (8 worldwide citation)

In a mobile communication system according to the present invention, with the separate use of a plurality of component carriers or with the use of a carrier set including the plurality of component carriers aggregated, a base station performs radio communication with a user equipment corresponding t ...


9
Yasushi Iwane: Demodulated data recognition and decision device. Mitsubishi Denki Kabushiki Kaisha, Rothwell Figg Ernst & Kurz, April 14, 1992: US05105447 (8 worldwide citation)

A demodulated data recognition and decision device is disclosed in which an input signal such as an intermediate frequency signal or the like is demodulated and digital data corresponding to a demodulated base band signal is recovered. This device is characterized in that a sample clock rate having ...


10
Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Noriyuki Fukui, Tetsuya Mishuku, Michiaki Takano, Ryoichi Fujie, Shigenori Tani, Akira Okubo, Keisuke Ozaki: Data communication method and mobile communication system. Mitsubishi Electric Corporation, Oblon Spivak McClellad Maier & Neustadt L, February 8, 2011: US07885235 (7 worldwide citation)

Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast S ...