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1. 发明专利

JP5189881B2 Variable circuit, communication system 有权
公开(公告)号：JP5189881B2
公开(公告)日：2013-04-24
申请号：JP2008102528
申请日：2008-04-10
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：敬幸古田 , 敦史福田 , 浩司岡崎 , 祥一楢橋
IPC分类号： H04B1/38 , H03F1/52 , H04B1/04 , H04B1/3822
摘要： The invention provides a variable circuit, a commnication device, a mobile communication device and a communicaction device. The variable circuit that has a device that changes the mechanical state thereof and has a characteristic that is changed by a change of the mechanical state of the device, the variable circuit including: a controlling section 20 that turns the device from a current state, which is a current mechanical state, to a different state, which is a state different from the current state, and returns the device from the different state to the current state; and a trigger transmitting section 22 that transmits a first trigger to turn said device from the current state to the different state to the controlling section 20.

2. 发明专利

JP5161856B2 Bias circuit 有权
公开(公告)号：JP5161856B2
公开(公告)日：2013-03-13
申请号：JP2009233570
申请日：2009-10-07
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：敦史福田 , 浩司岡崎 , 祥一楢橋
IPC分类号： H03F3/189
CPC分类号： H03F1/306 , H03F3/1935 , H03F2200/111 , H03F2200/18 , H03F2200/451 , H03F2200/75

3. 发明专利

JP5096798B2 The power supply receiving apparatus, communication system, and these methods 有权
公开(公告)号：JP5096798B2
公开(公告)日：2012-12-12
申请号：JP2007139476
申请日：2007-05-25
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：敦史福田 , 浩司岡崎 , 祥一楢橋
IPC分类号： H02J17/00 , H02J7/00 , H04B7/015

4. 发明专利

JP4150314B2 90 ° hybrid circuit 有权
公开(公告)号：JP4150314B2
公开(公告)日：2008-09-17
申请号：JP2003317132
申请日：2003-09-09
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：浩司岡崎 , 哲夫廣田 , 敦史福田
IPC分类号： H01P1/10 , H01P5/22 , H01P5/04 , H01P5/12 , H01P5/18 , H03H7/48
CPC分类号： H01P5/227 , H01P5/04

5. 发明专利

JP4838572B2 Stabilization circuit, a multi-band amplifier circuit 有权
公开(公告)号：JP4838572B2
公开(公告)日：2011-12-14
申请号：JP2005338489
申请日：2005-11-24
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：浩司岡崎 , 祥一楢橋 , 敦史福田
IPC分类号： H01P5/02 , H03F3/60
CPC分类号： H03F3/601 , H03F1/086 , H03F1/56 , H03F3/191 , H03F2200/111 , H03F2200/12 , H03F2200/222 , H03F2200/249 , H03F2200/252 , H03F2200/255 , H03F2200/27 , H03F2200/372 , H03F2200/387 , H03F2200/417 , H03F2200/423 , H03H7/40 , H03H11/30 , H04B1/0053 , H04B1/0458

6. 发明专利

JP3960888B2 Signal separation method and receiving apparatus 有权
公开(公告)号：JP3960888B2
公开(公告)日：2007-08-15
申请号：JP2002257590
申请日：2002-09-03
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：矩芳寺田 , 敦史福田 , 恭宜鈴木
IPC分类号： H04J99/00 , H04B7/08
摘要： PROBLEM TO BE SOLVED: To provide a signal separating method in which the transmission quality is improved by successively applying appropriate signal processing in accordance with a correlative value between received signals to be used for an MIMO (multi-input multi-output) communication system. SOLUTION: Transmission characteristics of a propagation path are estimated for every transmitting information sequence, the correlation between the received signals is calculated from the estimated transmission characteristics for every transmitting information sequence to rank information sequence signals of small correlative values in order and in the information sequences contained in the received signals, the information sequence of the smallest rank is defined as a desired information sequence. Then, signals of the desired information sequence are extracted to generate a received signal replica of the desired information sequence, the received signal replica of the desired information sequence is subtracted from the received signal, and the signal from which the received signal replica is subtracted is defined as an extracting input signal of the information sequence of the next rank. Then, signals of the desired information sequence in the information sequences of the next rank are extracted. Such processes are repeated to extract signals of all information sequences in order from the received signals. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP3844673B2 Communication system and communication method 有权
公开(公告)号：JP3844673B2
公开(公告)日：2006-11-15
申请号：JP2001309200
申请日：2001-10-04
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：敦史福田 , 俊雄野島 , 恭宜鈴木
IPC分类号： H04L12/28 , H04M11/00 , H04W4/26 , H04W28/18

8. 发明专利

JP5143523B2 Bias circuit 有权
公开(公告)号：JP5143523B2
公开(公告)日：2013-02-13
申请号：JP2007269798
申请日：2007-10-17
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：敦史福田 , 浩司岡崎 , 祥一楢橋
IPC分类号： H03F3/60
CPC分类号： H03F3/189

9. 发明专利

JP4838536B2 Matching circuit 有权
公开(公告)号：JP4838536B2
公开(公告)日：2011-12-14
申请号：JP2005148621
申请日：2005-05-20
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：浩司岡崎 , 祥一楢橋 , 敦史福田
IPC分类号： H03H7/38 , H03F3/60 , H04B1/04
CPC分类号： H03H7/383 , H04B1/0458
摘要： The present invention has for its object to provide a matching circuit with multiband capability which can be reduced in size, even if the number of handled frequency bands rises. The matching circuit of the present invention comprises a load having frequency-dependent characteristics, a first matching block connected with one end to the load with frequency-dependent characteristics, and a second matching block formed by lumped elements connected in series to the first matching block. And then, when a certain frequency band is used, matching is obtained with the series impedance of the first matching block and the second matching block. When a separate frequency band is used, a À-type circuit is constituted by connecting auxiliary matching blocks to both sides of the second matching block. Next, at the same frequency, by taking the combined impedance of this À-type circuit and a load whose characteristics do not depend on the frequency to be Z0, the influence of the second matching block is removed.

10. 发明专利

JP4464919B2 Matching circuit 有权
公开(公告)号：JP4464919B2
公开(公告)日：2010-05-19
申请号：JP2005503619
申请日：2004-03-15
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：泰山尾 , 浩司岡崎 , 哲夫廣田 , 敦史福田
IPC分类号： H03H7/38 , H01P1/10 , H01P5/02 , H03F3/24 , H03F3/60 , H04B1/00 , H04B1/04
CPC分类号： H03H7/383 , H01P5/02 , H03F1/56 , H03F2200/111 , H04B1/0067 , H04B1/0458

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