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1. 发明申请

US20050206446A1 Demodulator for demodulating pulse position modulated signal 失效
标题翻译：用于解调脉冲位置调制信号的解调器
公开(公告)号：US20050206446A1
公开(公告)日：2005-09-22
申请号：US11068921
申请日：2005-03-02
申请人： Yoshihito Shimazaki , Hiroji Akahori
发明人： Yoshihito Shimazaki , Hiroji Akahori
IPC分类号： H03K9/04 , H03M1/12 , H04B1/7163 , H04J13/00 , H04L25/49
CPC分类号： H03K9/04 , H04B1/71637 , H04L25/4902
摘要： A PPM signal demodulator for demodulating a PPM signal transmitted in a UWB radio communication system includes a rectifier for rectifying a received PPM signal to obtain an absolute value signal, integrator and comparators for integrating the absolute value signal for every first, second and third integral times and comparing the integrated values for the integral times, absolute value circuits for converting respective outputs of the integrator and comparators to corresponding absolute values, moving average circuits for moving-averaging respective outputs of the absolute value circuits, a determining circuit for generating demodulation data on the basis of the integrated and compared result by the integrator and comparator, and a main control for generating, on the basis of the outputs of the moving average circuits, integral interval control signals that control the first, second and third integral times to supply them to the respective integrator and comparators.
摘要翻译：用于解调在UWB无线电通信系统中发送的PPM信号的PPM信号解调器包括整流器，用于对接收的PPM信号进行整流以获得绝对值信号，积分器和用于对绝对值信号进行积分的比较器，用于每第一，第二和第三积分时间比较积分时间的积分值，将积分器和比较器的各个输出的绝对值电路与相应的绝对值进行比较，用于对绝对值电路的各个输出进行移动平均的移动平均电路，用于产生解调数据的确定电路，积分器和比较器的积分和比较结果的基础，以及用于基于移动平均电路的输出产生控制第一，第二和第三积分时间以供应它们的积分间隔控制信号的主控制到相应的积分器和比较器。

2. 发明授权

US6038253A Data receiver with symbol rate discrimination and statistical analysis functions 失效
标题翻译：具有符号率鉴别和统计分析功能的数据接收器
公开(公告)号：US6038253A
公开(公告)日：2000-03-14
申请号：US52130
申请日：1998-03-31
申请人： Yoshihito Shimazaki
发明人： Yoshihito Shimazaki
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L1/0046 , H04B17/26 , H04L1/0065 , H04L1/08
摘要： A received signal has been converted from a source symbol rate to another symbol rate by symbol repetition, then interleaved to form frames in which the same symbol sequence is repeated multiple times. The source symbol rate is identified by dividing each frame into various numbers of blocks, and determining whether each such division makes at least a certain proportion of the blocks identical. The source symbols are reproduced by identifying a subset of similar blocks from statistical properties of the blocks, and combining the signal values in the subset of blocks.
摘要翻译：接收到的信号已经通过符号重复从源符号速率转换为另一个码元速率，然后被交织以形成多个重复相同符号序列的帧。通过将每个帧划分成不同数量的块来识别源符号速率，并且确定每个这样的分区是否使至少一定比例的块相同。源符号通过从块的统计特性中识别相似块的子集，以及组合块的子集中的信号值来再现。

3. 发明申请

US20100015981A1 CELLULAR RADIO COMMUNICATION SYSTEM AND HANDOVER METHOD 审中-公开
标题翻译：细胞无线电通信系统和切换方法
公开(公告)号：US20100015981A1
公开(公告)日：2010-01-21
申请号：US12302184
申请日：2007-05-23
申请人： Yoshihito Shimazaki , Takeshi Umehara
发明人： Yoshihito Shimazaki , Takeshi Umehara
IPC分类号： H04W36/00
CPC分类号： H04W36/0061 , H04W16/32
摘要： A cellular radio communication system according to a first aspect of the present invention includes a plurality of base stations to send control information to a mobile station belonging to a cell controlled by each of the plurality of base stations for enabling handover to a cell adjacent to a cell controlled by each of the plurality of base stations. Further, the control information sent from at least some of the plurality of base stations concerns a smaller number of cells than a total number of adjacent cells to the cell controlled by each of the plurality of base stations.
摘要翻译：根据本发明的第一方面的蜂窝无线电通信系统包括多个基站，用于向属于由多个基站中的每一个基站控制的小区的移动站发送控制信息，以使得能够切换到与该多个基站相邻的小区小区由多个基站中的每一个控制。此外，从多个基站中的至少一些基站发送的控制信息涉及比由多个基站中的每一个控制的小区的相邻小区的总数少的小区数。

4. 发明授权

US07221215B2 Demodulator for demodulating pulse position modulated signal 失效
标题翻译：用于解调脉冲位置调制信号的解调器
公开(公告)号：US07221215B2
公开(公告)日：2007-05-22
申请号：US11068921
申请日：2005-03-02
申请人： Yoshihito Shimazaki , Hiroji Akahori
发明人： Yoshihito Shimazaki , Hiroji Akahori
IPC分类号： H03K9/04
CPC分类号： H03K9/04 , H04B1/71637 , H04L25/4902
摘要： A PPM signal demodulator for demodulating a PPM signal transmitted in a UWB radio communication system includes a rectifier for rectifying a received PPM signal to obtain an absolute value signal, integrator and comparators for integrating the absolute value signal for every first, second and third integral times and comparing the integrated values for the integral times, absolute value circuits for converting respective outputs of the integrator and comparators to corresponding absolute values, moving average circuits for moving-averaging respective outputs of the absolute value circuits, a determining circuit for generating demodulation data on the basis of the integrated and compared result by the integrator and comparator, and a main control for generating, on the basis of the outputs of the moving average circuits, integral interval control signals that control the first, second and third integral times to supply them to the respective integrator and comparators.
摘要翻译：用于解调在UWB无线电通信系统中发送的PPM信号的PPM信号解调器包括整流器，用于对接收的PPM信号进行整流以获得绝对值信号，积分器和用于对绝对值信号进行积分的比较器，用于每第一，第二和第三积分时间比较积分时间的积分值，将积分器和比较器的各个输出的绝对值电路与相应的绝对值进行比较，用于对绝对值电路的各个输出进行移动平均的移动平均电路，用于产生解调数据的确定电路，积分器和比较器的积分和比较结果的基础，以及用于基于移动平均电路的输出产生控制第一，第二和第三积分时间以供应它们的积分间隔控制信号的主控制到相应的积分器和比较器。

5. 发明授权

US07289470B2 Method and apparatus of performing handoff 失效
标题翻译：进行切换的方法和装置
公开(公告)号：US07289470B2
公开(公告)日：2007-10-30
申请号：US10268101
申请日：2002-10-10
申请人： Yoshihito Shimazaki
发明人： Yoshihito Shimazaki
IPC分类号： H04Q7/00 , H04Q7/20
CPC分类号： H04W36/18 , H04B7/0408 , H04W36/30
摘要： In a mobile communications system, a mobile station communicates with a first base station operating at a first antenna specific weight factor. While the mobile station is both in a coverage area of the first base station and a coverage area of a second base station, the mobile station transmits a control signal to the second base station which causes the second base station to operate at a second antenna specific weight factor which is the same as the first antenna specific weight factor. The mobile station then communicates with the second base station, operating at the second antenna specific weight factor, to complete a handoff operation.
摘要翻译：在移动通信系统中，移动站与以第一天线特定权重因子操作的第一基站进行通信。当移动站既在第一基站的覆盖区域和第二基站的覆盖区域中时，移动站向第二基站发送控制信号，使得第二基站在第二天线特定权重因子与第一天线特定权重因子相同。然后，移动台与第二基站进行通信，以第二天线特定权重因子操作，以完成切换操作。

6. 发明申请

US20070159241A1 Demodulator for demodulating pulse position modulated signal 失效
公开(公告)号：US20070159241A1
公开(公告)日：2007-07-12
申请号：US11715435
申请日：2007-03-08
申请人： Hiroji Akahori , Yoshihito Shimazaki
发明人： Hiroji Akahori , Yoshihito Shimazaki
IPC分类号： H03K7/04 , H03K9/04 , H03K9/06
CPC分类号： H03K9/04 , H04B1/71637 , H04L25/4902
摘要： A PPM signal demodulator for demodulating a PPM signal transmitted in a UWB radio communication system includes a rectifier for rectifying a received PPM signal to obtain an absolute value signal, integrator and comparators for integrating the absolute value signal for every first, second and third integral times and comparing the integrated values for the integral times, absolute value circuits for converting respective outputs of the integrator and comparators to corresponding absolute values, moving average circuits for moving-averaging respective outputs of the absolute value circuits, a determining circuit for generating demodulation data on the basis of the integrated and compared result by the integrator and comparator, and a main control for generating, on the basis of the outputs of the moving average circuits, integral interval control signals that control the first, second and third integral times to supply them to the respective integrator and comparators.

7. 发明授权

US5812025A Automatic-gain-control circuit compensating for changes in gain control characteristics 失效
标题翻译：自动增益控制电路补偿增益控制特性的变化
公开(公告)号：US5812025A
公开(公告)日：1998-09-22
申请号：US784257
申请日：1997-01-15
申请人： Yoshihito Shimazaki
发明人： Yoshihito Shimazaki
IPC分类号： H03G3/20 , H03G1/04 , H03G3/30
CPC分类号： H03G1/04
摘要： According to a first aspect of the invention, an automatic-gain-control circuit, which generates a control signal that controls the gain of a variable-gain element, modifies the control signal to compensate for changes in the gain control characteristic of the variable-gain element. According to a second aspect of the invention, the automatic-gain-control modifies a fixed value which is added to cancel a direct-current offset, the modification being made in response to changes in the gain control characteristic of the variable-gain element.
摘要翻译：根据本发明的第一方面，产生控制可变增益元件的增益的控制信号的自动增益控制电路修改控制信号，以补偿可变增益元件的增益控制特性的变化，增益元素。根据本发明的第二方面，自动增益控制修改相加的固定值以消除直流偏移，该修正是响应于可变增益元件的增益控制特性的改变而进行的。

8. 发明申请

US20050141605A1 Pulse modulator and PPM demodulation determining circuit employed in ultra wideband wireless communications 失效
标题翻译：用于超宽带无线通信的脉冲调制器和PPM解调确定电路
公开(公告)号：US20050141605A1
公开(公告)日：2005-06-30
申请号：US11006813
申请日：2004-12-08
申请人： Hiroji Akahori , Yoshihito Shimazaki
发明人： Hiroji Akahori , Yoshihito Shimazaki
IPC分类号： H04J13/00 , H04B1/717 , H04L25/49 , H04L27/04
CPC分类号： H04B1/7174 , H04B1/71637 , H04L25/4902
摘要： The present invention provides a pulse modulator and a PPM demodulation determining circuit employed in Ultra Wideband (UWB) wireless communications. The pulse modulator comprises high frequency delayers which delay an input pulse, variable gainers each of which amplifies the delayed pulse, and an adder which adds the amplified pulses. The PPM demodulation determining circuit comprises an absolute value converter which absolute value-converts a received signal, integration circuits which individually integrate the absolute value-converted signals, and a comparison/determination unit which compares the integrated signals.
摘要翻译：本发明提供了一种在超宽带（UWB）无线通信中采用的脉冲调制器和PPM解调确定电路。脉冲调制器包括延迟输入脉冲的高频延迟器，每个放大延迟脉冲的可变增益器以及将放大脉冲相加的加法器。 PPM解调判定电路包括绝对值转换接收信号的绝对值转换器，对绝对值转换信号分别积分的积分电路和对积分信号进行比较的比较/确定单元。

9. 发明申请

US20050059391A1 Wireless LAN terminal device, portable data terminal system, mobile phone, wireless LAN communication method, method for providing service, and method for transferring incoming call 失效
标题翻译：无线LAN终端装置，便携式数据终端系统，移动电话，无线LAN通信方法，提供服务的方法以及用于传送来电的方法
公开(公告)号：US20050059391A1
公开(公告)日：2005-03-17
申请号：US10941008
申请日：2004-09-15
申请人： Akira Ikeda , Yoshihito Shimazaki , Atsushi Shimbo
发明人： Akira Ikeda , Yoshihito Shimazaki , Atsushi Shimbo
IPC分类号： H04L12/28 , H04W4/04 , H04W4/16 , H04W52/00 , H04W64/00 , H04W68/00 , H04W84/12 , H04W88/02 , H04W92/18 , H04Q7/24
CPC分类号： H04W88/02 , H04W4/16 , H04W52/0212 , H04W84/12 , Y02D70/142 , Y02D70/23 , Y02D70/26
摘要： A portable wireless LAN terminal device attachable to an external connecting terminal installed in a portable external connection device, such as a portable data terminal device, includes a device body (2); means for transmitting and receiving (6-9) a signal through a wireless LAN circuit, the means for transmitting and receiving being installed the device body (2); means for supplying power (11) to each portion from means for accumulating power installed in the device body (2) or means for accumulating power attachable to the device body (2); a connecting terminal (13) installed in the device body (2) and attachable to the external connecting terminal; and first sound producing means (12, 15), which is installed in the device body, for producing sound based on the signal received by the means for transmitting and receiving (6-9).
摘要翻译：可附接到安装在便携式外部连接装置（例如便携式数据终端装置）中的外部连接终端的便携式无线LAN终端装置包括装置本体（2）; 用于通过无线LAN电路发送和接收（6-9）信号的装置，用于发送和接收的装置安装在装置本体（2）上; 用于为安装在装置主体（2）中的蓄电装置的每个部分供电（11）的装置或用于累积可附装到装置本体（2）的电力的装置; 连接端子（13），其安装在所述装置主体（2）中并可附接到所述外部连接端子; 和第一声音产生装置（12,15），其安装在装置主体中，用于基于由发送和接收装置接收的信号产生声音（6-9）。

10. 发明授权

US5946361A Viterbi decoding method and circuit with accelerated back-tracing and efficient path metric calculation 失效
标题翻译：维特比解码方法和具有加速回溯和有效路径度量计算的电路
公开(公告)号：US5946361A
公开(公告)日：1999-08-31
申请号：US489933
申请日：1995-06-13
申请人： Satoru Araki , Yoshihito Shimazaki , Shigeru Ono
发明人： Satoru Araki , Yoshihito Shimazaki , Shigeru Ono
IPC分类号： H03M13/23 , G06F11/10 , H03M13/41 , H04L27/06 , H04Q7/20
CPC分类号： H03M13/4169
摘要： In a first aspect of the invention, a Viterbi decoding circuit stores comparison result bits in a bit-accessible path memory unit. A back-trace is performed by setting a state value in a shift register, then shifting comparison result bits from the path memory unit into the shift register. A certain number of bits at the shift-in end of this register are supplied as read address bits to the path memory unit. In a second aspect of the invention, a Viterbi decoding circuit has selectors that first select old path metric values and branch metric values, which are added or subtracted to produce candidate path metric values, then select the candidate path metric values, which are subtracted to produce a comparison result bit representing the sign of their difference. These additions and subtractions are performed by the same arithmetic unit.
摘要翻译：在本发明的第一方面，维特比解码电路将比较结果位存储在位可访问路径存储单元中。通过设置移位寄存器中的状态值，然后将比较结果位从路径存储器单元移位到移位寄存器来执行后跟踪。该寄存器的移入端的一定数量的位作为读地址位提供给路径存储单元。在本发明的第二方面，维特比解码电路具有选择器，其首先选择旧路径量度值和分支量度值，其被相加或相减以产生候选路径度量值，然后选择候选路径量度值，其被减去产生一个表示它们差异的符号的比较结果位。这些加法和减法由相同的算术单元执行。

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