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1. 发明专利

JP2014017745A Intermittent operation type low power wireless multi-hop communication system and radio device 审中-公开
标题翻译：间歇式操作型低功率无线多路通信系统和无线电设备
公开(公告)号：JP2014017745A
公开(公告)日：2014-01-30
申请号：JP2012155154
申请日：2012-07-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAGARA KAZUHIKO , YAMAZOE TAKANORI
IPC分类号： H04W52/02 , H04W84/18 , H04W88/04
CPC分类号： Y02D70/00 , Y02D70/10
摘要： PROBLEM TO BE SOLVED: To provide techniques for a communication mode and radio devices that can check whether or not data transmitted by them has been normally received at a transmission destination without an ACK signal from the communication destination in an intermittent operation type multi-hop mode, although in a conventional intermittent operation type multi-hop mode, it is necessary to wait a response signal (ACK signal) from the communication destination as means for checking whether data transmitted by them has been normally received at the communication destination.SOLUTION: In a multi-hop communication system including a plurality of radio devices which intermittently perform transmission and reception, a first radio device monitors and checks data which a second radio device transmits to a third radio device in order to check whether or not the data which the first radio device transmitted was correctly received by the second radio device. This makes it possible to check whether data transmitted by it has been normally received at a communication destination without receiving an ACK signal from the communication destination, and to make the radio devices operate in low power consumption and perform intermittent operation while keeping synchronization.
摘要翻译：要解决的问题：提供通信模式的技术和无线电设备，其可以在间歇操作类型多跳模式中检查在发送目的地是否正常地从通信目的地的ACK信号正常地接收到它们发送的数据尽管在传统的间歇操作型多跳模式中，需要等待来自通信目的地的响应信号（ACK信号）作为用于检查它们发送的数据是否在通信目的地被正常接收的装置。解决方案：在包括间歇地进行发送和接收的多个无线电设备的多跳通信系统，第一无线电设备监视和检查第二无线电设备向第三无线电设备发送的数据，以便检查第一无线电设备的数据发送的无线设备被第二无线电设备正确接收。这使得可以在通信目的地没有接收到ACK信号的情况下检查其发送的数据是否已被正常地接收，并且使得无线电设备在低功耗下工作并且在保持同步的同时进行间歇操作。

2. 发明专利

JP2011259228A Information distribution system, fixed station and mobile station 审中-公开
标题翻译：信息分配系统，固定站和移动站
公开(公告)号：JP2011259228A
公开(公告)日：2011-12-22
申请号：JP2010132155
申请日：2010-06-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HIMORI YOSHIKI , FUKUSHIMA SHINICHIRO , HAMADA HIROYUKI , YAMAMOTO MASAAKI , YAMAZOE TAKANORI
IPC分类号： H04W72/12
CPC分类号： H04W74/0808
摘要： PROBLEM TO BE SOLVED: To provide an information distribution system for solving the problem of the conventional active tag system in which: a master does not know whether a slave exists near the master, and therefore, the master transmits data continuously or periodically through an arbitrary channel, irrespective of the presence or absence of a slave near the master.SOLUTION: The master continuously receives data through a specific channel to detect whether a slave exists nearby. On the other hand, the slave transmits data for a given period through the specific channel by a trigger specified by a user. A master near the slave receives the data transmitted by the slave and recognizes that the slave exists nearby. After the recognition of the slave, the master performs carrier senses on channels other than the specific channel and transmits data for a given period through a channel on which a carrier does not exist. After the transmission through the specific channel, the slave receives a plurality of channels other than the specific channel to receive the data transmitted by the master.
摘要翻译：要解决的问题：提供一种用于解决常规有源标签系统的问题的信息分发系统，其中：主机不知道主机附近是否存在从机，因此主机连续或周期地发送数据通过任意通道，不管主机附近是否存在从机。解决方案：主机通过特定通道连续接收数据，以检测从站是否存在于附近。另一方面，从设备通过特定频道通过用户指定的触发器发送给定周期的数据。从站附近的主站接收从站发送的数据，并识别从站存在于附近。在对从机进行识别之后，主设备在特定信道之外的信道上执行载波侦听，并通过不存在载波的信道发送给定周期的数据。在通过特定信道的传输之后，从机接收除特定信道之外的多个信道，以接收主设备发送的数据。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2013045835A Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：JP2013045835A
公开(公告)日：2013-03-04
申请号：JP2011181492
申请日：2011-08-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KAWAMURA TETSUSHI , UCHIYAMA HIROYUKI , WAKANA HIRONORI , OZAKI HIROAKI , YAMAZOE TAKANORI
IPC分类号： H01L29/786 , H01L21/8234 , H01L27/08 , H01L27/088 , H01L51/05
CPC分类号： H01L27/1225 , H01L27/124 , H01L27/1251
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device including a logic gate satisfying a small area, a low-power operation and a high-speed operation.SOLUTION: A semiconductor device according to the present embodiment comprises a logic gate including more than one thin film transistor in which a gate electrode and a semiconductor layer are arranged on a substrate via a gate insulation film and a source electrode and a drain electrode are arranged to be connected with the semiconductor layer. At least in the first thin film transistor, the gate electrode is in an electrical floating state, and the semiconductor layer includes in a vertical direction with respect to a surface of the substrate, a first overlapping area sandwiched by the gate electrode and the source electrode, and a second overlapping area sandwiched by the gate electrode and the drain electrode. At least in the second thin film transistor, the gate electrode is connected to an input terminal, and the channel layer includes, in a vertical direction with respect to the surface of the substrate surface, a first overlapping area sandwiched by the gate electrode and the source electrode, and a second overlapping area sandwiched by the gate electrode and the drain electrode.
摘要翻译：要解决的问题：提供一种包括满足小面积，低功率操作和高速操作的逻辑门的半导体器件。解决方案：根据本实施例的半导体器件包括逻辑门，其包括多于一个薄膜晶体管，其中栅极电极和半导体层经由栅极绝缘膜和源电极和漏极布置在衬底上电极被布置成与半导体层连接。至少在第一薄膜晶体管中，栅电极处于电浮动状态，并且半导体层相对于衬底的表面在垂直方向上包括由栅电极和源极夹持的第一重叠区域以及被栅极电极和漏极电极夹在中间的第二重叠区域。至少在第二薄膜晶体管中，栅电极连接到输入端子，并且沟道层在相对于衬底表面的表面的垂直方向上包括由栅电极和源电极和被栅电极和漏电极夹在中间的第二重叠区域。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2013033335A Contactless electronic device 有权
标题翻译：无连接电子设备
公开(公告)号：JP2013033335A
公开(公告)日：2013-02-14
申请号：JP2011168352
申请日：2011-08-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OZAKI HIROAKI , YAMAZOE TAKANORI , UCHIYAMA HIROYUKI , WAKANA HIRONORI , KAWAMURA TETSUSHI
IPC分类号： G06K19/07 , H04B5/02
摘要： PROBLEM TO BE SOLVED: To operate a contactless electronic device with a transistor using carrier accumulation stably irrespective of communication range and communication condition, and to increase a communicable range of the contactless electronic device.SOLUTION: There is provided a contactless electronic device constituted by a transistor using carrier accumulation that comprises: a first rectification circuit which converts a signal received by an antenna into a first DC power supply voltage; a second rectification circuit which converts the signal received by the antenna into a second DC power supply voltage; a logic circuit which runs with a voltage resulting from a first smoothing capacitor's smoothing the first DC power supply voltage; a modulation signal amplification circuit which amplifies a first modulation signal output by the logic circuit and outputs the amplified modulation signal as a second modulation signal; a load modulation circuit which, on the basis of the second modulation signal, modulates the voltage resulting from the first smoothing capacitor's smoothing the first DC power supply voltage.
摘要翻译：要解决的问题：无论通信范围和通信条件如何，都可以使用载波累积稳定地操作具有晶体管的非接触式电子设备，并且增加非接触式电子设备的可通信范围。解决方案：提供一种由使用载波累积的晶体管构成的非接触电子器件，其包括：第一整流电路，其将由天线接收的信号转换为第一直流电源电压; 第二整流电路，其将由天线接收的信号转换为第二直流电源电压; 逻辑电路，其以由第一平滑电容器对第一直流电源电压进行平滑的电压运行; 调制信号放大电路，放大由逻辑电路输出的第一调制信号，并输出放大的调制信号作为第二调制信号; 负载调制电路，其基于所述第二调制信号，对由所述第一平滑电容器对所述第一直流电源电压进行平滑化而得到的电压进行调制。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2010033457A Position measurement system, wireless communication device and position measurement method 审中-公开
标题翻译：位置测量系统，无线通信设备和位置测量方法
公开(公告)号：JP2010033457A
公开(公告)日：2010-02-12
申请号：JP2008196898
申请日：2008-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAGAWA SHIGEO , YAMAMOTO MASAAKI , YAMAZOE TAKANORI , MIYAZAKI SUKEYUKI
IPC分类号： G06K17/00 , B65G1/137 , G01S5/02 , G01S13/74 , G06K19/00 , G06K19/07
摘要： PROBLEM TO BE SOLVED: To perform position management of an article disposed in an indoor area or the like with small power consumption. SOLUTION: A position measurement system for measuring a position of a terminal in a prescribed area has: a terminal including an RFID (Radio Frequency IDentification) and a wireless communication device; a reading device for communicating with the RFID; and a base station for wirelessly communicating with the wireless communication device. The reading device transmits a first signal showing that the terminal enters the prescribed area to the RFID included in the terminal when the terminal enters the prescribed area. The RFID starts the wireless communication device when receiving the first signal. The base station acquires position information of the terminal by communicating with the wireless communication device. The reading device transmits a second signal showing that the terminal comes out from the prescribed area to the RFID included in the terminal when the terminal comes out from the prescribed area. The RFID stops the wireless communication device when receiving the second signal. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：以低功耗对设置在室内等的物品进行位置管理。解决方案：用于测量在规定区域中的终端的位置的位置测量系统具有包括RFID（射频识别）和无线通信设备的终端; 用于与RFID通信的读取装置; 以及用于与无线通信设备无线通信的基站。当终端进入规定区域时，读取装置向终端内的RFID发送表示终端进入规定区域的第一信号。 RFID在接收到第一信号时启动无线通信设备。基站通过与无线通信装置通信来取得终端的位置信息。当终端从规定区域出来时，读取装置发送表示终端从规定区域向终端中包含的RFID发出的第二信号。当接收到第二信号时，RFID停止无线通信设备。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009010597A Rfid system, and communication cryptographic method 审中-公开
标题翻译： RFID系统和通信CRYPTOGRAPHIC方法
公开(公告)号：JP2009010597A
公开(公告)日：2009-01-15
申请号：JP2007169107
申请日：2007-06-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAMOTO MASAAKI , YAMAZOE TAKANORI , KUWANA TOSHIYUKI , NAKAJIMA YASUYOSHI
IPC分类号： H04L9/20 , G06K17/00 , G06K19/07 , G06K19/073 , H04B1/59 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To make it difficult to decrypt cipher while securing convenience of RFID by including an initial value for random number generation in a cipher frame and sending the cipher frame from an R/W and changing random number seeds for each cipher frame. SOLUTION: The reader/writer 200 generates, before transmission of a down cipher frame, a random number seed based upon a stored value of a first imparted data storage means storing imparted data included in the down cipher frame having been sent last, and performs encryption/decryption based upon random number data generated by a first random number generating means using the random number seed as an initial value. A tag 300 generates, before reception of the down cipher frame, a random number seed based upon a stored value in a second imparted data storage means storing the imparted data included in the down cipher frame having been received last, and performs decryption/encryption based upon random number data generated by the second random number generating means using the random number seed as an initial value. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了在通过在密码帧中包括用于随机数生成的初始值并且从R / W发送密码帧并且为每个而改变随机数种子来确保RFID的便利性使得难以解密密码密码框。解决方案：读取器/写入器200在发送下降密码帧之前，基于存储被包括在最后发送的下降密码帧中的被赋予的数据的第一赋予数据存储装置的存储值，生成随机数种子，并且基于使用随机数种子作为初始值的由第一随机数生成装置生成的随机数数据执行加密/解密。标签300在接收到下降密码帧之前，根据存储在最后接收的下行密码帧中所包含的被赋予数据的第二赋予数据存储装置中的存储值，生成随机数种子，并进行解密/加密对由第二随机数生成装置生成的随机数数据使用随机数种子作为初始值。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008153851A Rfid device 有权
标题翻译： RFID设备
公开(公告)号：JP2008153851A
公开(公告)日：2008-07-03
申请号：JP2006338447
申请日：2006-12-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAMOTO MASAAKI , YAMAZOE TAKANORI , KUWANA TOSHIYUKI , WATANABE KAZUKI
IPC分类号： H04B5/02 , H04B1/59
CPC分类号： H04B5/0056 , G06K19/0726 , G06K19/07749 , H04B5/0062
摘要： PROBLEM TO BE SOLVED: To provide an RFID device for accurately receiving a transmission command from the reader/writer of an affiliated RFID system.
SOLUTION: A demodulation circuit 31 of an RFID device is provided with a variable LPF 301 capable of changing a reception band width; a binarization circuit 302 connected to the variable LPF; a transmission speed detection circuit 303 for detecting the transmitting speed of a reception command from the binarization signal; and a control circuit 304 for setting band width corresponding to the maximum transmission speed of a reception command as reception band width in the initial state of the variable LPF, and for changing the reception band width of the variable LPF according to the transmission speed of the reception command.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于从附属RFID系统的读写器准确地接收发送命令的RFID装置。解决方案：RFID设备的解调电路31具有能够改变接收带宽的可变LPF 301; 连接到可变LPF的二值化电路302; 用于从二值化信号中检测接收命令的发送速度的传输速度检测电路303; 以及控制电路304，用于将与接收命令的最大传输速度相对应的带宽设置为可变LPF的初始状态下的接收带宽，并且根据传输速度来改变变量LPF的接收带宽接收命令。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007183790A Rfid device, rfid system and access control method 审中-公开
标题翻译： RFID设备，RFID系统和访问控制方法
公开(公告)号：JP2007183790A
公开(公告)日：2007-07-19
申请号：JP2006001286
申请日：2006-01-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUSHIMA SHINICHIRO , KUWANA TOSHIYUKI , KOBAYASHI YUICHI , MOTOSAWA JUN , MORIYA MASUMI , YAMAZOE TAKANORI
IPC分类号： G06K19/073 , G06F21/02 , G06F21/24 , G06K19/07
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive and highly convenient RFID device and an RFID system and an access control method having a security function for the reading/writing of data. SOLUTION: The RFID device 100 is provided with an access number storage part 211 for recording access number when performing the reading/writing of data of a data storage part 210 of the RFID device 100 and a reading/writing setting information storage part 212 for locking reading/writing for the data of the storage part 210. Furthermore, the RFID device is provided with a function validation flag storage part 213 for validating or invalidating the access number recording function or the lock function. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供廉价且高度方便的RFID设备和具有用于读/写数据的安全功能的RFID系统和访问控制方法。解决方案：RFID设备100设有用于在执行RFID设备100的数据存储部分210的数据的读取/写入时记录访问号码的访问号码存储部分211以及读/写设置信息存储部分 212，用于锁定用于存储部分210的数据的读取/写入。此外，RFID设备设置有用于验证或使访问号码记录功能或锁定功能无效的功能验证标志存储部件213。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2013125782A Oxide semiconductor device 审中-公开
标题翻译：氧化物半导体器件
公开(公告)号：JP2013125782A
公开(公告)日：2013-06-24
申请号：JP2011272337
申请日：2011-12-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UCHIYAMA HIROYUKI , KAWAMURA TETSUSHI , WAKANA HIRONORI , OZAKI HIROAKI , YAMAZOE TAKANORI
IPC分类号： H01L29/786 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To provide an oxide semiconductor device having good characteristics and high reliability even when a flexible substrate is used.SOLUTION: An oxide semiconductor device has: a gate electrode 2; a gate insulating layer 3 provided on the gate electrode 2; a channel part provided on the gate electrode 2 via the gate insulating layer 3; and source-drain electrodes 6 electrically connected with the channel part. The channel part includes an oxide semiconductor layer 5 and a conductive layer 4. At least one of the source-drain electrodes 6 is connected to the conductive layer 4 via the oxide semiconductor layer 5.
摘要翻译：要解决的问题：即使使用柔性基板，也提供具有良好特性和高可靠性的氧化物半导体器件。解决方案：氧化物半导体器件具有：栅电极2; 设置在栅极电极2上的栅极绝缘层3; 经由栅极绝缘层3设置在栅极电极2上的沟道部分; 以及与沟道部电连接的源极 - 漏极电极6。沟道部分包括氧化物半导体层5和导电层4.至少一个源 - 漏电极6经由氧化物半导体层5连接到导电层4.版权所有（C）2013，JPO和INPIT

10. 发明专利

JP2013026699A Radio communication apparatus, radio communication method, and radio communications system 审中-公开
标题翻译：无线电通信设备，无线电通信方法和无线电通信系统
公开(公告)号：JP2013026699A
公开(公告)日：2013-02-04
申请号：JP2011157392
申请日：2011-07-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAMOTO MASAAKI , YAMAZOE TAKANORI
IPC分类号： H04B1/59 , H04B1/16 , H04W48/16
CPC分类号： Y02D70/00 , Y02D70/40
摘要： PROBLEM TO BE SOLVED: To suppress electric power required for reception in radio communication.SOLUTION: A radio communication apparatus, radio communication method and radio communications system according to the present invention reads out history information from a circuit for storing start records as history information when the apparatus is driven by radio waves from the outside and receives the electric waves from the outside for starting, thereby conducting radio communication suited to the read-out history information for saving of standby power.

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