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1. 发明授权

US4800554A Disk magazine 失效
标题翻译：磁盘杂志
公开(公告)号：US4800554A
公开(公告)日：1989-01-24
申请号：US102194
申请日：1987-09-29
申请人： Hidetoshi Yamasaki , Masae Murata
发明人： Hidetoshi Yamasaki , Masae Murata
IPC分类号： G11B17/30 , G11B23/03 , G11B17/00 , G11B23/04
CPC分类号： G11B17/30 , G11B23/0323
摘要： A disk magazine for use with an audio and a video instrument of the type using disks and accommodating a stack of disks therein includes generally rectangular trays each of which is bodily removable from a casing of the magazine through an opening, which is formed only through the front end of the casing. Each tray is guided by horizontally aligned ones of tray guides which are arranged in steps on the inner periphery of each of opposite side walls of the casing with respect to an intended direction of tray insertion. Whether or not the tray is inserted in a correct position into the casing is checked to prevent the tray from being loaded in a position other than the correct one.
摘要翻译：用于与使用盘并且容纳其中的盘的类型的音频和视频仪器一起使用的磁盘盒包括大体上矩形的托盘，每个托盘通过开口可以从盒体的外壳身体可移除，该开口仅通过开口形成外壳前端。每个托盘由水平对齐的托盘引导件引导，托盘引导件相对于托盘插入的预期方向逐步布置在壳体的每个相对侧壁的内周上。检查托盘是否插入到壳体中的正确位置，以防止托盘被装载在正确位置以外的位置。

2. 发明授权

US5481514A Recording/reproducing apparatus including an auto changer for a disk-like recording medium 失效
标题翻译：包括用于盘状记录介质的自动更换器的记录/再现装置
公开(公告)号：US5481514A
公开(公告)日：1996-01-02
申请号：US112371
申请日：1993-08-27
申请人： Hidetoshi Yamasaki , Masae Murata , Yukio Noya , Yasukazu Yomogita , Manabu Taguchi , Akira Yamanaka , Naoki Sibuya
发明人： Hidetoshi Yamasaki , Masae Murata , Yukio Noya , Yasukazu Yomogita , Manabu Taguchi , Akira Yamanaka , Naoki Sibuya
IPC分类号： G11B17/22 , G11B17/26 , G11B17/08
CPC分类号： G11B17/225 , G11B17/26
摘要： An auto player technique is provided in a recording/reproducing apparatus storing a plurality of disks, wherein size of the apparatus can be reduced in height and width and positioning accuracy can be increased. A pair of tray stockers are disposed right and left. A lifter transporting the tray in a vertical direction is disposed behind the tray stockers. The lifter includes a tray extracting mechanism selectively extracting disks from the tray stockers. The tray extracting mechanism simultaneously engages with two trays disposed at the same height of the right and left tray stockers when extracting trays. A recording/reproducing device is disposed below the lifter. A drive mechanism engages with the recording/reproducing device to shift it in a right and left direction. A lock mechanism is provided to engage with the recording/reproducing device when the drive mechanism is disengaged from the recording/reproducing device.
摘要翻译：在存储多个盘的记录/再现装置中提供自动播放器技术，其中可以减小装置的尺寸，并且可以提高定位精度。左右一对托盘存放器。沿着垂直方向运送托盘的升降器设置在托盘储料器的后面。升降机包括从托盘储料器选择性地提取盘的托盘提取机构。当提取托盘时，托盘提取机构同时与设置在左右托盘储存器的相同高度处的两个托盘啮合。记录/再现装置设置在升降机的下方。驱动机构与记录/再现装置接合，以在左右方向上移动。当驱动机构与记录/再现装置分离时，提供锁定机构以与记录/再现装置接合。

3. 发明申请

US20080175221A1 Wireless Transmission System and Wireless Transmission Method and Wireless Station and Transmitting Station for Use Therein 有权
标题翻译：无线传输系统和无线传输方法及其使用的无线站和传输站
公开(公告)号：US20080175221A1
公开(公告)日：2008-07-24
申请号：US10569491
申请日：2005-09-16
申请人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
发明人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
IPC分类号： H04J3/06
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/0667 , H04B7/0676 , H04B7/15592 , H04W84/042 , H04W84/047
摘要： The present invention provides a wireless transmission system in which it is possible to exert a maximum path diversity effect even if the maximum number of effective branches is limited to a small number. A transmission timing control section (23) determines a transmission start timing to be a timing obtained by delaying a reference timing by a predetermined delay amount. A modulation section (21) modulates a signal by a modulation scheme such that an anti-multipath property is exerted when the signal is demodulated on a receiver side, and transmits the modulated signal at the transmission start timing. In a receiving station (12), a demodulation section (33) demodulates the receive signal to obtain receive data. The predetermined delay amount is such that signals are received at the receiving station (12) at a plurality of signal-receiving timings, and the number of signal-receiving timings is less than or equal to a predetermined maximum number of effective branches, a difference between the signal-receiving timings is greater than or equal to a predetermined delay resolution and is less than or equal to a predetermined maximum delay.
摘要翻译：本发明提供一种无线传输系统，其中即使最大数量的有效分支被限制为少数，也可以施加最大路径分集效应。发送定时控制部（23）将发送开始定时确定为通过将基准定时延迟预定延迟量而获得的定时。调制部（21）通过调制方式对信号进行调制，使得当在接收机侧解调信号时施加抗多径特性，并在发送开始定时发送调制信号。在接收站（12）中，解调部（33）对接收信号进行解调，得到接收数据。预定延迟量使得在接收站（12）处以多个信号接收定时接收信号，并且信号接收定时的数量小于或等于预定的最大有效分支数，差在信号接收定时之间大于或等于预定的延迟分辨率并且小于或等于预定的最大延迟。

4. 发明授权

US5561673A Antenna switched diversity reciever 失效
标题翻译：天线切换分集接收机
公开(公告)号：US5561673A
公开(公告)日：1996-10-01
申请号：US227446
申请日：1994-04-14
申请人： Hitoshi Takai , Hidetoshi Yamasaki , Yoshio Urabe
发明人： Hitoshi Takai , Hidetoshi Yamasaki , Yoshio Urabe
IPC分类号： H04B7/08 , H04L1/06 , H04L1/20
CPC分类号： H04B7/0888 , H04B7/0814 , H04B7/082 , H04L1/06
摘要： An antenna switched diversity receiver comprising a plurality of physically separated antennas, a switching unit for selectively switching to one of the plurality of antennas to receive a burst in a time series, a decoding unit for decoding transmission data contained in the received burst in a reversed manner to coding, a bit-error-detecting unit for detecting a bit error in decoded data in each received burst, and a control unit for controlling the switching unit in accordance with the bit-error detection result. The receiver may additionally include a RSSI (received signal strength indicator) checking unit for checking a RSSI of a switched antenna and a RSSI holding unit for holding a RSSI. The receiver constructed as above controls switching based on detection of at least one bit error in each of m consecutive bursts burst alone or together with the RSSI. As a result, the receiver obtains excellent diversity effect while being compact and economical.
摘要翻译：一种天线切换分集接收机，包括多个物理分离的天线，切换单元，用于选择性地切换到所述多个天线中的一个天线以按时间序列接收脉冲串;解码单元，用于将包含在所接收的脉冲串中的发送数据逆转用于检测每个接收脉冲串中的解码数据中的比特误差的比特误差检测单元，以及用于根据比特误差检测结果控制切换单元的控制单元。接收机还可以包括用于检查交换天线的RSSI的RSSI（接收信号强度指示符）检查单元和用于保持RSSI的RSSI保持单元。如上构造的接收机基于对单独的m个连续突发突发中的每一个中的至少一个比特错误的检测或与RSSI一起来控制切换。结果，接收器在紧凑且经济的情况下获得优异的分集效应。

5. 发明授权

US08525608B2 PLL frequency synthesizer 有权
标题翻译： PLL频率合成器
公开(公告)号：US08525608B2
公开(公告)日：2013-09-03
申请号：US13319221
申请日：2010-05-11
申请人： Kenji Takahashi , Hidetoshi Yamasaki
发明人： Kenji Takahashi , Hidetoshi Yamasaki
IPC分类号： H03B5/12
CPC分类号： H03L7/099 , H03L7/18 , H03L2207/06 , H03L2207/50
摘要： A PLL frequency synthesizer provides improved phase noise characteristics. In an ADPLL frequency synthesizer, a frequency characteristic adjusting unit compares a predetermined threshold to the difference between the fractional portion of a DCO control signal and the closest integer value, and generates an adjustment signal. A supplementary varactor shifts the oscillating frequency characteristics based on the adjustment signal. By setting the predetermined threshold to a value defining the range in which the possibility of incrementing or decrementing is high, the oscillating frequency characteristics are shifted in cases when the target value of the fractional portion of the DCO control signal is in the range in which the possibility of incrementing or decrementing is high. By shifting the oscillating frequency characteristics, the target value of the fractional portion of the DCO control signal are shifted to a range in which the possibility of incrementing or decrementing is low.
摘要翻译： PLL频率合成器提供改进的相位噪声特性。在ADPLL频率合成器中，频率特性调整单元将预定阈值与DCO控制信号的分数部分与最接近的整数值进行比较，并产生调整信号。辅助变容二极管根据调整信号移动振荡频率特性。通过将预定阈值设置为定义递增或递减的可能性的范围高的值，在DCO控制信号的分数部分的目标值处于该范围内的情况下，振荡频率特性被移位递增或递减的可能性很高。通过移动振荡频率特性，DCO控制信号的分数部分的目标值被转移到增加或减少的可能性低的范围。

6. 发明授权

US07756218B2 Wireless transmission system and wireless transmission method and wireless station and transmitting station for use therein 有权
标题翻译：无线传输系统和无线传输方法以及其中使用的无线站和发射站
公开(公告)号：US07756218B2
公开(公告)日：2010-07-13
申请号：US10569491
申请日：2005-09-16
申请人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
发明人： Hideki Nakahara , Hitoshi Takai , Hidetoshi Yamasaki , Kenji Miyanaga , Koichiro Tanaka
IPC分类号： H04L27/00
CPC分类号： H04L1/1887 , H04B7/022 , H04B7/0667 , H04B7/0676 , H04B7/15592 , H04W84/042 , H04W84/047
摘要： A wireless transmission system exerts a maximum path diversity effect even if the maximum number of effective branches is limited to a small number. A transmission timing control section determines a transmission start timing to be a timing obtained by delaying a reference timing by a predetermined delay amount. A modulation section modulates a signal by a modulation scheme such that an anti-multipath property is exerted when the signal is demodulated on a receiver side, and transmits the modulated signal at the transmission start timing. In a receiving station, a demodulation section demodulates the receive signal to obtain receive data. The predetermined delay amount is such that signals are received at the receiving station at a plurality of signal-receiving timings, and the number of signal-receiving timings is less than or equal to a predetermined maximum number of effective branches, a difference between the signal-receiving timings is greater than or equal to a predetermined delay resolution and is less than or equal to a predetermined maximum delay.
摘要翻译：无线传输系统即使最大数量的有效分支被限制为少数，也施加最大路径分集效应。发送定时控制部分将发送开始定时确定为通过将基准定时延迟预定延迟量而获得的定时。调制部通过调制方式对信号进行调制，使得当在接收机侧解调信号时施加反多径特性，并在发送开始定时发送调制信号。在接收站中，解调部分解调接收信号以获得接收数据。预定延迟量使得在多个信号接收定时在接收站处接收信号，并且信号接收定时的数量小于或等于预定的最大有效分支数，信号之间的差接收定时大于或等于预定的延迟分辨率，并且小于或等于预定的最大延迟。

7. 发明授权

US06181749B2 Diversity reception apparatus 有权
标题翻译：分集接收装置
公开(公告)号：US06181749B2
公开(公告)日：2001-01-30
申请号：US09182063
申请日：1998-10-29
申请人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki , Kenichi Mori
发明人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki , Kenichi Mori
IPC分类号： H04B708
CPC分类号： H01Q3/267 , H04B7/0817 , H04B7/0888 , H04L1/06
摘要： A demodulator 1 obtains demodulated data in a plurality of channels. Estimating portions 2a and 2b estimate and output the numbers of erroneous symbols and error locations thereof in the demodulated data. A data comparator 3 compares the demodulated data corresponding to the error locations with the demodulated data in the corresponding locations in other channels to determine whether the error location is correct, and it outputs a decision signal in response to the determination. A data selector 4 selects one of the demodulated data in the plurality of channels on the basis of the numbers of erroneous symbols and the decision signals and outputs the data as selected data. It is then possible to maintain the reliability of error detection even when a less redundant short error detecting code is used, and also to accurately select a channel of good quality even when the demodulated data in all channels contain the same extent of errors.
摘要翻译：解调器1获得多个信道中的解调数据。估计部分2a和2b估计并输出解调数据中的错误符号和错误位置的数目。数据比较器3将对应于错误位置的解调数据与其他通道中的相应位置中的解调数据进行比较，以确定错误位置是否正确，并且响应于该确定而输出判定信号。数据选择器4基于错误符号和判定信号的数量选择多个信道中的解调数据中的一个，并输出数据作为选择的数据。即使当使用较少冗余的短错误检测码时也可以保持错误检测的可靠性，并且即使当所有信道中的解调数据包含相同的错误程度时，也可以准确地选择质量良好的信道。

8. 发明授权

US5825820A Waveform shaping method and equipment 失效
公开(公告)号：US5825820A
公开(公告)日：1998-10-20
申请号：US264616
申请日：1994-06-23
申请人： Yoshio Urabe , Shouichi Koga , Hitoshi Takai , Koji Kai , Hidetoshi Yamasaki
发明人： Yoshio Urabe , Shouichi Koga , Hitoshi Takai , Koji Kai , Hidetoshi Yamasaki
IPC分类号： H03G3/30 , H04L25/03 , H04L27/20 , H04L27/36 , H04L27/00
CPC分类号： H03G3/3089 , H03G3/3047 , H04L25/03859 , H04L27/2067 , H04L27/362
摘要： In the transmitter which carries out burst transmission using information data as a packet, if the status is divided into four modes, namely, burst stop mode, burst rising mode, burst continuous mode, and burst falling mode, a waveform shaping equipment designed to read out shaped waveform data for each mode from outputs of either of the two memory tables, the first memory table which holds waveform data for specific data patterns used in common in burst rising mode and burst falling mode and the second memory table which holds waveform data for all data patterns used in the burst continuous mode, or a waveform shaping equipment comprising the third memory table which holds waveform data corresponding to all the data patterns used in the burst rising mode and the fourth memory table which holds waveform data corresponding to all data patterns used in the burst falling mode and generating shaped waveform data by synthesizing the two outputs of the third and the fourth memory tables at the time of burst continuous mode.

9. 发明授权

US5454012A Digital signal transmission device for improvement of anti-multipath feature, a method of the same and digital signal transmission waveform 失效
标题翻译：用于改善抗多径特征的数字信号传输装置，一种相同方法和数字信号传输波形
公开(公告)号：US5454012A
公开(公告)日：1995-09-26
申请号：US227111
申请日：1994-04-13
申请人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
发明人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
IPC分类号： H04B14/06 , H04L27/18 , H04L27/20 , H04L27/04
CPC分类号： H04L27/18
摘要： A digital signal transmission device for transmitting a signal generated by modulating a carrier wave according to a binary or M-ary data sequence. Such device comprises a differentially encoding unit for converting the original data sequence into a transmission data sequence, a waveform generation unit for.degree. generating a phase transition waveform in each time slot which corresponds to each data included in the transmission data sequence, and a modulation unit for modulating the carrier wave according to a signal which has the phase transition waveform generated by the waveform generation unit. The information to be transmitted is present in a difference between two data which are spaced form each other by a prescribed time slots. The phase transition waveform includes a center part and a connection part for linking the center parts in adjacent time slots where a phase transition waveform in the center part of a present time slot is generated according to a corresponding data, then a phase transition waveform in the connection part is generated to continue on the phase transition waveform in the center parts of time slots succeeding to and preceding the present time slot without having a discontinuity even at the linking point.
摘要翻译：一种数字信号传输装置，用于发送根据二进制或多元数据序列调制载波产生的信号。这种装置包括用于将原始数据序列转换成发送数据序列的差分编码单元，用于在与发送数据序列中包括的每个数据相对应的每个时隙中产生相位变化波形的DEG的波形生成单元和调制单元用于根据具有由波形生成单元生成的相变波形的信号来调制载波。要发送的信息以彼此间隔开规定时隙的两个数据之间的差异存在。相变波形包括中心部分和连接部分，用于根据相应的数据链接当前时隙的中心部分中的相位变化波形的相邻时隙中的中心部分，然后在生成连接部分，以便在当前时隙之前和之前的时隙的中心部分的相位转变波形上继续，而不会在连接点处具有不连续性。

10. 发明授权

US08675759B2 Wireless transmission system, and wireless station and method used for same 有权
标题翻译：无线传输系统，以及无线电台及其使用方法
公开(公告)号：US08675759B2
公开(公告)日：2014-03-18
申请号：US12294568
申请日：2007-03-20
申请人： Hitoshi Takai , Hidetoshi Yamasaki , Hideki Nakahara , Kenji Miyanaga
发明人： Hitoshi Takai , Hidetoshi Yamasaki , Hideki Nakahara , Kenji Miyanaga
IPC分类号： H04B7/02
CPC分类号： H04B7/2662
摘要： A wireless transmission system performs multi-station simultaneous transmission of data. The wireless transmission system includes wireless stations for transmitting and receiving data. Transmitter-side wireless stations, a multipath channel, and receiver-side wireless stations constitute a system for path diversity. At least one wireless station among the wireless stations determines, depending on a response packet with respective to a multi-station simultaneous transmission request packet transmitted by itself or other stations, delay amounts from a reference timing during multi-station simultaneous transmission in the wireless transmission system, and symbol waveforms that are a basis for a modulated waveform. A difference between each delay amount is set to be larger than or equal to a predetermined delay resolution for each symbol waveform, and a difference between maximum and minimum values of the delay amounts is set to be smaller than or equal to a predetermined maximum delay.
摘要翻译：无线传输系统执行多站同时传输数据。无线传输系统包括用于发送和接收数据的无线站。发射机侧无线站，多路径信道和接收机侧无线站构成路径分集的系统。无线站中的至少一个无线站根据与其自身或其他站发送的多站同时发送请求分组相对应的响应分组来确定在无线发送中的多站同时发送期间的基准定时的延迟量系统和符号波形，这是调制波形的基础。每个延迟量之间的差设定为大于或等于每个符号波形的预定延迟分辨率，并且延迟量的最大值和最小值之间的差被设置为小于或等于预定最大延迟。

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