公开(公告)号：US06442146B1

公开(公告)日：2002-08-27

申请号：US09075249

申请日：1998-05-11

申请人： Tetsuo Onodera ,  Hiroshi Usami ,  Akihiro Shibuya ,  Eimatsu Moriyama ,  Kiyoshi Hamaguchi ,  Yoichi Saito ,  Tadashi Matsumoto ,  Mitsuhiko Mizuno

发明人： Tetsuo Onodera ,  Hiroshi Usami ,  Akihiro Shibuya ,  Eimatsu Moriyama ,  Kiyoshi Hamaguchi ,  Yoichi Saito ,  Tadashi Matsumoto ,  Mitsuhiko Mizuno

IPC分类号： H04B7212

CPC分类号： H04B7/212

摘要： The present invention is directed to a TDMA communication system which is adapted to different communication environments or prepares different communication environments and allows each mobile station to be set for working in any one of the different communication environments. The communication system commonly uses a TDMA format that has a fixed frame-length and a constant number of bits for each of the slots composing the frame. The communication environments have prepared respective sets of communication conditions, each set including a transmission power, a modulating method, the number of multiplexed signals, error-correction, an antenna gain, a frequency hopping value and a diversity value. At each mobile station and each base station, one of plural sets of communication conditions for respective environments is selected to establish communication with each other under the selected environment.

摘要翻译： 本发明涉及适用于不同通信环境或准备不同通信环境的TDMA通信系统，并且允许每个移动站被设置用于在不同通信环境中的任何一个中工作。 通信系统通常使用对于构成帧的每个时隙具有固定的帧长度和固定比特数的TDMA格式。 通信环境已经准备好各种通信条件，每组包括传输功率，调制方法，多路复用信号的数量，纠错，天线增益，跳频值和分集值。 在每个移动站和每个基站处，选择用于各个环境的多组通信条件之一，以在所选择的环境下建立彼此的通信。

公开(公告)号：US6157508A

公开(公告)日：2000-12-05

申请号：US231614

申请日：1999-01-14

申请人： Hiroshi Usami

发明人： Hiroshi Usami

IPC分类号： G11B5/09 ,  G11B5/008 ,  G11B5/53 ,  G11B15/12 ,  G11B15/18 ,  G11B23/00 ,  G11B15/14

CPC分类号： G11B5/0086 ,  G11B15/125 ,  G11B15/1875 ,  G11B5/534 ,  G11B23/0007

摘要： A magnetic recording/playback apparatus for recording information to a magnetic tape and playing back the information from the magnetic tape, includes first and second recording heads which are provided on a rotary cylinder and alternately record information to the magnetic tape. First and second playback heads are provided on the rotary cylinder at predetermined positions relative to the first and second recording heads, and alternately play back the information from the magnetic tape. A crosstalk canceling switch device cancels crosstalk at outputs of the first and second playback heads when the apparatus is run in a read-after-write mode, the crosstalk canceling switch device being set in a closed position during the read-and-write mode and interconnecting the output of the first playback head and the output of the second playback head.

摘要翻译： 用于将信息记录到磁带并从磁带中回放信息的磁记录/重放装置包括设置在旋转磁盘上并交替地将信息记录到磁带的第一和第二记录头。 第一和第二重放头相对于第一和第二记录头在预定位置处设置在旋转圆筒上，并且从磁带交替地重放信息。 串扰消除开关装置在读写模式下运行时，消除第一和第二重放头的输出处的串扰，串扰消除开关装置在读 - 写模式期间被设置在关闭位置;以及 互连第一播放头的输出和第二播放头的输出。

公开(公告)号：US5372545A

公开(公告)日：1994-12-13

申请号：US066426

申请日：1993-05-25

申请人： Etsuji Noda ,  Hiroshi Usami ,  Yoshiki Hashimoto

发明人： Etsuji Noda ,  Hiroshi Usami ,  Yoshiki Hashimoto

IPC分类号： F24F7/007 ,  F24F11/00 ,  G01S3/78 ,  G01S15/04 ,  G01S15/88 ,  G01V8/12 ,  G05D23/19

CPC分类号： G05D23/1902 ,  F24F11/0034 ,  F24F2011/0035 ,  F24F2011/0036

摘要： A ventilator includes a ventilator fan and a sensor which detects a human body without contact. When a user performs the specific action, a comparator compares the action with a pattern stored in a memory. If the action matches the pattern, a controller controls the operation of the ventilator fan.

摘要翻译： 呼吸机包括呼吸机风扇和检测人体而不接触的传感器。 当用户执行特定操作时，比较器将该动作与存储在存储器中的模式进行比较。 如果动作符合模式，则控制器控制呼吸机风扇的操作。

公开(公告)号：US4777543A

公开(公告)日：1988-10-11

申请号：US898539

申请日：1986-08-21

申请人： Hideo Nishijima ,  Kaneyuki Okamoto ,  Katsuhiko Goto ,  Hiroshi Usami

发明人： Hideo Nishijima ,  Kaneyuki Okamoto ,  Katsuhiko Goto ,  Hiroshi Usami

IPC分类号： G11B15/467 ,  H04N5/7826 ,  G11B5/588 ,  G11B15/473

CPC分类号： G11B15/4675

摘要： In an automatic tracking system for a magnetic recording and reproducing apparatus wherein tracking is controlled so as to increase an amplitude of a reproduced signal which is delivered from a rotary head for reproducing a track recorded by a helical scan system, the amplitudes of the reproduced signal are detected at a plurality of points of time within one rotational cycle of the rotary head, and the tracking is controlled so as to increase a minimum value among the detected values at the plurality of points of time.

摘要翻译： 在用于磁记录和再现装置的自动跟踪系统中，其中跟踪被控制以增加从用于再现由螺旋扫描系统记录的轨迹的旋转磁头传送的再现信号的幅度，再现信号的幅度 在旋转头的一个旋转周期内的多个时间点被检测，并且跟踪被控制以便在多个时间点上增加检测值中的最小值。

公开(公告)号：US06879845B2

公开(公告)日：2005-04-12

申请号：US09930134

申请日：2001-08-16

申请人： Toshiro Suzuki ,  Ken Takei ,  Satoshi Takahashi ,  Hiroshi Usami ,  Yuuji Ishida

发明人： Toshiro Suzuki ,  Ken Takei ,  Satoshi Takahashi ,  Hiroshi Usami ,  Yuuji Ishida

IPC分类号： H04B7/02 ,  H04W16/28 ,  H04M1/00

CPC分类号： H04W16/28

摘要： In a time-division multiplexing wireless communication system, an antenna module has plural antenna elements. Receiver high-frequency circuit synthesizes signals from the antenna elements according to an antenna directivity having a desired beam pattern. Demodulator selects one of the received signals from wireless terminals according to the synthesized received signals, and determines transmission beam direction information for use in directing the beam in the selected direction. Weighting circuit generates weight coefficients for setting of the beam patterns and transmission beam directions according to the transmission beam direction information, and produces transmission time slots according to a table listing the relations of the transmission beam directions and the time slots for use in the beam radiation in those directions. Down-link fixed beam-forming circuit and modulator control the antenna module using the generated beam pattern, beam direction and transmission time slots to transmit the down-link signal.

摘要翻译： 在时分复用无线通信系统中，天线模块具有多个天线元件。 接收机高频电路根据具有所需波束图案的天线方向性从天线元件合成信号。 解调器根据合成的接收信号从无线终端选择一个接收到的信号，并且确定用于将波束指向所选方向的传输波束方向信息。 加权电路根据传输波束方向信息产生用于设置波束图案和传输波束方向的加权系数，并根据列出发射波束方向与用于波束辐射的时隙的关系的表产生传输时隙 在这些方向。 下行链路固定波束形成电路和调制器使用生成的波束图案，波束方向和传输时隙来控制天线模块，以发送下行链路信号。

公开(公告)号：US4933925A

公开(公告)日：1990-06-12

申请号：US926562

申请日：1986-10-31

申请人： Hirohisa Yamaguchi ,  Hiroshi Usami

发明人： Hirohisa Yamaguchi ,  Hiroshi Usami

IPC分类号： G11B7/007 ,  G11B7/09

CPC分类号： G11B7/0903 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/24082

摘要： An optical tracking control apparatus comprises a differential amplifier for differentially amplifying signals respectively reproduced from two mutually adjacent track turns of a guide track on both sides of an intermediate part in which an information signal is recorded and reproduced on and from a disc, a zero crossing detector for detecting a zero crossing of an output signal of the differential amplifier and for producing a switching pulse signal, and a polarity inverting circuit responsive to the switching pulse signal for alternately inverting the polarity of a crosstalk component reproduced from the two mutually adjacent track turns of the guide track as crosstalk for every one-half period of the switching pulse signal. An output signal of the polarity inverting circuit is used as a tracking error signal for controlling the tracking of the light beam.

摘要翻译： 光学跟踪控制装置包括差分放大器，用于差分放大信号，该信号分别从在盘上记录和再现信息信号的中间部分的两侧的导轨的两个相互相邻的轨道匝重现， 检测器，用于检测差分放大器的输出信号的零交叉并用于产生开关脉冲信号;以及极性反转电路，响应于开关脉冲信号，用于交替地反转从两个相互相邻的轨道匝数再现的串扰分量的极性 作为开关脉冲信号的每半个周期的串扰。 极性反转电路的输出信号用作用于控制光束跟踪的跟踪误差信号。