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    • 12. 发明授权
    • Surface acoustic wave convolver
    • 表面声波卷积器
    • US5336957A
    • 1994-08-09
    • US993112
    • 1992-12-18
    • Kazuhiko YamanouchiNorihito MihotaShunji KatoHiromu TeradaJunichi Ogata
    • Kazuhiko YamanouchiNorihito MihotaShunji KatoHiromu TeradaJunichi Ogata
    • H03H9/72G06G7/195H01L41/08
    • G06G7/195
    • A surface acoustic wave convolver includes first and second interdigital electrodes for exciting surface acoustic waves and an output electrode for detecting the surface acoustic waves to extract a convolution output as an electrical signal, the first and second interdigital electrodes and the output electrode being formed on a piezoelectric or electrostrictive substrate. In order to improve convolution efficiency and obtain wide-range characteristics, each of the first and second interdigital electrodes has a predetermined thickness, the first interdigital electrode is arranged such that positive and negative electrodes are alternately arranged so as to have electrode widths and periods which are gradually decreased toward the output electrode, the second interdigital electrode is arranged such that positive and negative electrodes are alternately arranged so as to have electrode widths and periods which are gradually increased toward the output electrode, and the second interdigital electrode has a double electrode structure in addition, in order to reduce ripples in frequency characteristics, the output electrode are divided into a plurality of pieces, and two end portion of each of the first and second interdigital electrodes are weighted.
    • 表面声波卷曲器包括用于激发表面声波的第一和第二叉指电极和用于检测表面声波以将卷积输出提取为电信号的输出电极,第一和第二叉指电极和输出电极形成在 压电或电致伸缩基板。 为了提高卷积效率并获得宽范围特性,第一和第二叉指电极中的每一个具有预定厚度,第一交叉指状电极被布置成使得正极和负极交替地布置成具有电极宽度和周期, 朝向输出电极逐渐减小,第二叉指电极被布置为使得正极和负极交替地布置成具有朝向输出电极逐渐增加的电极宽度和周期,并且第二叉指电极具有双电极结构 此外,为了减少频率特性的波动,输出电极被分成多个片,并且第一和第二叉指电极中的每一个的两个端部被加权。
    • 15. 发明申请
    • ELECTRONIC DEVICE, SIGNAL TRANSMISSION DEVICE, AND SIGNAL TRANSMISSION METHOD
    • 电子设备,信号传输设备和信号传输方法
    • US20120120862A1
    • 2012-05-17
    • US13384120
    • 2010-08-09
    • Norihito MihotaHirofumi KawamuraYasuhiro OkadaNaoto NakamuraYoshiyuki Akiyama
    • Norihito MihotaHirofumi KawamuraYasuhiro OkadaNaoto NakamuraYoshiyuki Akiyama
    • H04W92/00H04H20/71
    • H04B7/022H04B7/0413
    • Signal distribution, signal switching, and signal collection are performed with a simple configuration. An electronic device comprises a transmission unit (108) for transmitting, as a wireless signal, a signal to be transmitted and a reception unit (208) for receiving the wireless signal transmitted from the transmission unit. In the electronic device, a plurality of pairs of wireless signal transmission points in the transmission unit and wireless signal reception points in the reception unit can be formed. Using the pairs of transmission points and reception points make it possible to execute at least either one of signal distribution in which the same signal to be transmitted from a transmission point is transmitted to the multiple reception points and signal switching in which a signal to be transmitted from a transmission point is selectively transmitted to any of the multiple reception points. The signal to be transmitted is transmitted as a wireless signal. In this case, the signal distribution, signal switching, and signal collection are performed in a wireless signal portion. Since a portion where a signal transmission is performed through electric wiring does not interpose the portion where the signal distribution, signal switching, and signal collection are performed, the signal distribution, signal switching, and signal collection can be performed with a simple configuration.
    • 以简单的配置进行信号分配,信号切换和信号采集。 电子设备包括用于作为无线信号发送要发送的信号的发送单元(108)和用于接收从发送单元发送的无线信号的接收单元(208)。 在电子设备中,可以形成发送单元中的多对无线信号发送点和接收单元中的无线信号接收点。 使用发送点和接收点对可以执行信号分配中的至少一个,其中从发送点发送的相同信号被发送到多个接收点,并且其中要发送的信号的信号切换 从发送点选择性地发送到多个接收点中的任一个。 要发送的信号作为无线信号发送。 在这种情况下,在无线信号部分中执行信号分配,信号切换和信号采集。 由于通过电线执行信号传输的部分不会插入执行信号分配,信号切换和信号收集的部分,所以可以以简单的配置进行信号分配,信号切换和信号收集。
    • 16. 发明申请
    • Wireless transmission system, wireless communication device and wireless transmission method
    • 无线传输系统,无线通信设备和无线传输方式
    • US20110075581A1
    • 2011-03-31
    • US12805929
    • 2010-08-25
    • Norihito Mihota
    • Norihito Mihota
    • H04W24/02H04W72/04
    • H04B7/0697H04B7/0682
    • Disclosed herein is a wireless transmission system including a plurality of antenna pairs; a demodulation functional unit; and a transmission characteristic correction unit. The plurality of antenna pairs each including a transmission antenna and a reception antenna. A wireless signal transmitted from a transmission antenna directly arrives as a desired wave at a corresponding reception antenna. Meanwhile, a wireless signal transmitted from a different transmission antenna directly arrives as an unnecessary wave at the reception antenna. The demodulation functional unit corresponding to each antenna pair demodulates a modulation signal received by the reception antenna. The transmission characteristic correction unit carries out correction calculation based on a transmission characteristic of a transmission space between the transmission and reception antennae based on demodulation signals demodulated by the demodulation functional units to acquire an output signal corresponding to a transmission subject signal.
    • 这里公开了一种包括多个天线对的无线传输系统; 解调功能单元; 和传输特性校正单元。 多个天线对各自包括发送天线和接收天线。 从发送天线发送的无线信号在对应的接收天线直接到达期望波。 同时,从不同的发送天线发送的无线信号作为不必要的波直接到达接收天线。 对应于每个天线对的解调功能单元解调由接收天线接收的调制信号。 传输特性校正单元基于由解调功能单元解调的解调信号,基于发送和接收天线之间的发送空间的发送特性进行校正计算,以获取与发送对象信号相对应的输出信号。
    • 18. 发明授权
    • Image display method and image display processor
    • 图像显示方法和图像显示处理器
    • US07574004B2
    • 2009-08-11
    • US10507716
    • 2004-02-03
    • Norihito Mihota
    • Norihito Mihota
    • H04N7/167
    • H04N21/41415H04N5/74H04N5/913H04N21/4122H04N21/8352H04N2005/91385H04N2005/91392
    • A method and apparatus for directly and indirectly preventing illegal copying of works such as cinema or video images displayed on a display apparatus such as a theater screen or display unit. In particular, the method and apparatus prevents illegal copying of a displayed work wherein one seeks to use an image pickup apparatus, such as a video camera, to make a copy of the displayed work. Prevention of illegal copying is achieved by implementing one or more changeover modes to changeover a display operation condition so that a stripe pattern or the like is produced on a redisplayed image to deteriorate the quality of the redisplayed image.
    • 一种用于直接和间接地防止非法复制诸如剧院屏幕或显示单元之类的显示装置上显示的电影或视频图像的作品的方法和装置。 特别地,该方法和装置防止非法复制所显示的作品,其中人们试图使用诸如摄像机的图像拾取装置来制作所显示的作品的副本。 通过实施一个或多个切换模式来切换显示操作条件来实现非法复制的防止,使得在重新显示的图像上产生条纹图案等,从而劣化重新显示的图像的质量。
    • 20. 发明授权
    • Signal transmission device, electronic device, and signal transmission method
    • 信号传输装置,电子装置和信号传输方法
    • US08718544B2
    • 2014-05-06
    • US13391643
    • 2010-08-31
    • Kenichi KawasakiNorihito MihotaHidenori Takeuchi
    • Kenichi KawasakiNorihito MihotaHidenori Takeuchi
    • H04B7/24
    • H04B1/04
    • A signal generation unit 107 and a first set value processing unit 7100 are included in a preceding stage of a transmission path connection unit 108 at a transmission side, and a signal generation unit 207 and a second set value processing unit 7200 are included in a subsequent stage of a transmission path connection unit 208 at a receiving side. The signal generation unit 107 or the signal generation unit 207 performs prescribed signal processing based on a set value. The first set value processing unit 7100 inputs a set value, that has been prescribed for the signal generation unit 107, to the signal generation unit 107, and the second set value processing unit 7200 inputs a set value, that has been prescribed for the signal generation unit 207, to the signal generation unit 207. Since the set value is not dynamically changed according to an environment change, or the like, simplification of a parameter operation circuit or reduction of power consumption is realized, and the parameter operation circuit does not unnecessarily operate even when it is used under the state without environment change.
    • 信号生成单元107和第一设定值处理单元7100包括在发送侧的传输路径连接单元108的前级中,信号生成单元207和第二设定值处理单元7200包括在后续 在接收侧的传输路径连接单元208的阶段。 信号生成单元107或信号生成单元207基于设定值进行规定的信号处理。 第一设定值处理单元7100将已经为信号生成单元107规定的设定值输入到信号生成单元107,第二设定值处理单元7200输入已经为信号规定的设定值 生成单元207到信号生成单元207.由于根据环境变化等不动态地改变设定值,因此实现了参数运算电路的简化或功耗的降低,并且参数运算电路不 即使在没有环境变化的状态下使用也不必要地运行。