Positioning system, positioning method, and positioning server
    41.
    发明申请
    Positioning system, positioning method, and positioning server 有权
    定位系统,定位方法和定位服务器

    公开(公告)号:US20050143092A1

    公开(公告)日:2005-06-30

    申请号:US11017135

    申请日:2004-12-21

    IPC分类号: G01S5/10 H04W64/00 H04Q7/20

    CPC分类号: H04W64/00

    摘要: To provide a positioning system, a positioning method, and a positioning server, which are capable of improving accuracy in detection of a position. In a positioning system, three or more access points connected to a terminal station by wireless communication are connected to a positioning server through a network, the access points transmit, to the positioning server, information regarding times of having received a signal transmitted from any one of the access points or the terminal station, and the positioning server measures a position of the terminal station based on the information regarding the times, the information having been received from the access points. In the positioning system, the access points select a communication method for maximizing a strength of the signal received from the terminal station and receive the signal from the terminal station, and the positioning server measures the position of the terminal station based on the information regarding the times, the information having been received from the access points.

    摘要翻译: 提供能够提高位置检测精度的定位系统,定位方法和定位服务器。 在定位系统中,通过无线通信连接到终端站的三个或更多个接入点通过网络连接到定位服务器,接入点向定位服务器发送关于接收到从任何一个发送的信号的时间的信息 的接入点或终端站,并且定位服务器根据关于时间的信息来测量终端站的位置,该信息已从接入点接收。 在定位系统中,接入点选择用于使从终端接收的信号的强度最大化并从终端接收信号的通信方法,并且定位服务器基于关于终端的信息来测量终端的位置 时间,从接入点接收到的信息。

    Base station and wireless communication system
    42.
    发明申请
    Base station and wireless communication system 失效
    基站和无线通信系统

    公开(公告)号:US20050014525A1

    公开(公告)日:2005-01-20

    申请号:US10848367

    申请日:2004-05-19

    CPC分类号: H04W64/00 H04W88/08

    摘要: The present invention reduces the number of base stations required to carry out terminal position detection. A base station which serves for terminal position detection using radio signals comprises an antenna to transmit and receive a radio signal; a radio signal receiver which generates a received signal from the radio signal received; a signal processing unit which processes the received signal and generates a transmit signal; a radio signal transmitter which generates a radio signal from the transmit signal; a control unit which exerts control of the base station operation; and a signal processing unit for position detection which performs signal processing for terminal position detection. A signal receivable range with which a signal can be received by the radio signal receiver is made longer than a signal transmission range with which a signal is transmitted by the radio signal transmitter.

    摘要翻译: 本发明减少了执行终端位置检测所需的基站的数量。 用于使用无线电信号进行终端位置检测的基站包括发射和接收无线电信号的天线; 从接收到的无线电信号产生接收信号的无线电信号接收机; 信号处理单元,处理所接收的信号并产生发送信号; 无线电信号发射机,其从所述发射信号产生无线电信号; 执行基站操作的控制的控制单元; 以及用于位置检测的信号处理单元,其执行用于终端位置检测的信号处理。 使得由无线电信号接收机可以接收信号的信号可接收范围比无线电信号发射机发送信号的信号传输范围更长。

    Strobe light-emission control apparatus
    43.
    发明授权
    Strobe light-emission control apparatus 失效
    频闪发光控制装置

    公开(公告)号:US06788892B2

    公开(公告)日:2004-09-07

    申请号:US10452204

    申请日:2003-06-03

    申请人: Takashi Yano

    发明人: Takashi Yano

    IPC分类号: G03B1505

    CPC分类号: H05B41/325

    摘要: When a strobe flash is not emitting light, a photoreception current that is output from a phototransistor is detected and correction current corresponding to amount of extraneous light is produced by a voltage-controlled current source. Further, a light-emission control apparatus, receives emitted light reflected from the subject and halts the light emission when a value obtained by integrating a photoreception signal exceeds a first predetermined threshold value. If a period of time from start of light emission by the discharge tube to that at which the integrated value exceeds the threshold value falls within a predetermined period of time, the integrated value is reset and integration is performed again. Further, the aperture of a diaphragm is reduced and the threshold value is raised from the first threshold value to a second threshold value.

    摘要翻译: 当闪光灯闪光不发光时,检测从光电晶体管输出的光接收电流,并且通过电压控制的电流源产生与外来光量相对应的校正电流。 此外,当通过对光接收信号进行积分而获得的值超过第一预定阈值时,发光控制装置接收从被摄体反射的发射光并停止发光。 如果从放电管的发光开始到积分值超过阈值的时间的时间段落在预定时间段内,则重置积分值并再次进行积分。 此外,膜片的孔径减小,并且阈值从第一阈值升高到第二阈值。

    Code division multiple access mobile communication system
    44.
    发明授权
    Code division multiple access mobile communication system 失效
    码分多址移动通信系统

    公开(公告)号:US06721296B2

    公开(公告)日:2004-04-13

    申请号:US10217404

    申请日:2002-08-14

    IPC分类号: H04B7216

    CPC分类号: H04B1/707 H04B7/2628

    摘要: A code division multiple access (CDMA) mobile communication system with improvements to permit stable reception with a minimum of bit error. The system comprises a voltage-controlled oscillator for supplying a carrier to a radio frequency quadrature demodulator, and a frequency controller for detecting a frequency error from a phase correction signal of the first step to generate a control signal that controls the oscillator. The frequency controller includes an extracting circuit and an integrating circuit. The extracting circuit extracts a phase change based on the frequency error derived from the phase correction signal of the first step and from a signal preceding that signal by a predetermined delay time. The integrating circuit integrates the phase change and outputs the integrated result as the control signal. The predetermined delay time is preferably set within a range not exceeding the delay time needed for averaging by an averaging circuit that receives the phase correction signal of the first step and outputs a phase correction signal. The carrier to a radio frequency quadrature modulator is preferably supplied from the voltage-controlled oscillator.

    摘要翻译: 具有改进的码分多址(CDMA)移动通信系统,以允许以最小的位错误的稳定的接收。 该系统包括用于向无线电频率正交解调器提供载波的压控振荡器和用于从第一步骤的相位校正信号检测频率误差的频率控制器,以产生控制振荡器的控制信号。 频率控制器包括提取电路和积分电路。 提取电路基于从第一步骤的相位校正信号导出的频率误差和该信号之前的信号预定的延迟时间提取相位变化。 积分电路对相位进行了积分,并输出积分结果作为控制信号。 预定的延迟时间优选地设定在不超过接收第一级的相位校正信号的平均电路进行平均所需的延迟时间的范围内并输出相位校正信号。 无线电频率正交调制器的载波优选地从压控振荡器提供。

    Power-source system, power supplying method and image capturing apparatus
    45.
    发明授权
    Power-source system, power supplying method and image capturing apparatus 有权
    电源系统,供电方法和摄像装置

    公开(公告)号:US06691048B2

    公开(公告)日:2004-02-10

    申请号:US09899098

    申请日:2001-07-06

    申请人: Takashi Yano

    发明人: Takashi Yano

    IPC分类号: G01R2100

    摘要: A power-source system includes: a power source; a voltage monitoring unit for monitoring a voltage of the power source to detect that the voltage falls below a consumption-limit level below which the use of the power source is to be limited; a consumption limiting unit for limiting the use of the power source when the voltage falls below the consumption-limit level; and a consumption-limit prohibiting unit for prohibiting the consumption limiting unit from limiting the use of the power source when the voltage of the power source falls below the consumption-limit level because of a momentary voltage fall different from a voltage fall corresponding to a discharge curve of the power source.

    摘要翻译: 电源系统包括:电源; 电压监视单元,用于监视电源的电压,以检测电压低于限制使用电源的消耗极限电平以下; 消耗限制单元,用于当所述电压降到所述消耗限制水平以下时限制所述电源的使用; 以及消耗限制禁止单元,用于当电源的电压下降到低于消耗极限电平时禁止消耗限制单元限制电源的使用,因为瞬时电压下降与对应于放电的电压下降不同 电源曲线。

    Code division multiple access mobile communication system

    公开(公告)号:US06456609B2

    公开(公告)日:2002-09-24

    申请号:US09922803

    申请日:2001-08-07

    IPC分类号: H04B7216

    CPC分类号: H04B1/707 H04B7/2628

    摘要: A code division multiple access (CDMA) mobile communication system with improvements to permit stable reception with a minimum of bit error. The system comprises a voltage-controlled oscillator for supplying a carrier to a radio frequency quadrature demodulator, and a frequency controller for detecting a frequency error from a phase correction signal of the first step to generate a control signal that controls the oscillator. The frequency controller includes an extracting circuit and an integrating circuit. The extracting circuit extracts a phase change based on the frequency error derived from the phase correction signal of the first step and from a signal preceding that signal by a predetermined delay time. The integrating circuit integrates the phase change and outputs the integrated result as the control signal. The predetermined delay time is preferably set within a range not exceeding the delay time needed for averaging by an averaging circuit that receives the phase correction signal of the first step and outputs a phase correction signal. The carrier to a radio frequency quadrature modulator is preferably supplied from the voltage-controlled oscillator.

    Sheet feeding apparatus, image forming apparatus having the same, and image reading apparatus having the same
    47.
    发明授权
    Sheet feeding apparatus, image forming apparatus having the same, and image reading apparatus having the same 有权
    片材馈送装置,具有该片材馈送装置的图像形成装置和具有该片材馈送装置的图像读取装置

    公开(公告)号:US06382622B1

    公开(公告)日:2002-05-07

    申请号:US09570687

    申请日:2000-05-12

    IPC分类号: B65H352

    摘要: The present invention relates to a sheet feeding apparatus comprising a sheet supporting means for supporting sheets, a feeding means for feeding the sheets on the sheet supporting means in a sheet feeding direction, a separating means for rotating in a direction opposite to the sheet feeding direction to separate the sheets sheet by sheet in pressurized contact with the feeding means and a transmitting means for transmitting drive force of the feeding means to the separating means. A circumferential speed of the separating means is set smaller than a circumferential speed of the feeding means.

    摘要翻译: 本发明涉及一种片材进给装置,它包括用于支撑片材的片材支撑装置,用于在片材进给方向上将片材供给在片材支持装置上的进给装置,用于沿与片材进给方向相反的方向旋转的分离装置 将片材与供给装置加压接触地分开,以及用于将进给装置的驱动力传递到分离装置的传送装置。 分离装置的圆周速度被设定为小于进给装置的圆周速度。

    Document information management system
    48.
    发明授权
    Document information management system 失效
    文件信息管理系统

    公开(公告)号:US06356923B1

    公开(公告)日:2002-03-12

    申请号:US09120032

    申请日:1998-07-21

    IPC分类号: G06F1500

    CPC分类号: G06F17/30011 G06F17/30879

    摘要: The document information management system according to the present invention comprises data base with a plurality of document files previously stored therein, a medium form having a document information section with document information recorded thereon and a bar code information section with electronic information corresponding to contents of the document information converted to bar code information and stored therein, a marking unit for giving a selection mark by selecting a desired word from a medium form, a reading unit for reading a selection mark and bar code information from a medium form with the selection mark given thereto, a retrieving unit for retrieving a corresponding document file from a data base using a word with a selection mark given thereto as a key word according to the selection mark and bar code information, and an output unit for outputting the retrieved document file as related information.

    摘要翻译: 根据本发明的文档信息管理系统包括具有先前存储在其中的多个文档文件的数据库,具有记录有文档信息的文档信息部分的媒体形式和具有对应于该内容的电子信息的条形码信息部分 转换为条形码信息的文档信息并存储在其中,标记单元,用于通过从介质形式中选择期望的字来提供选择标记;读取单元,用于从给定的选择标记的介质形式读取选择标记和条形码信息 一种检索单元,用于根据选择标记和条形码信息,使用具有给予其的选择标记的单词从数据库中检索相应的文档文件;以及输出单元,用于输出检索到的文档文件作为相关 信息。

    Spread spectrum communication system and transmission power control method therefor
    49.
    发明授权
    Spread spectrum communication system and transmission power control method therefor 失效
    扩频通信系统及其传输功率控制方法

    公开(公告)号:US06335924B1

    公开(公告)日:2002-01-01

    申请号:US09008589

    申请日:1998-01-16

    IPC分类号: H04B7216

    摘要: In a spread spectrum communication system, one (Wn) of a series of orthogonal codes for spectrum spreading is assigned to signal-to-noise ratio measurement in a terminal. On the basis of a noise signal detected by de-spreading a signal received from an antenna with the above described orthogonal code Wn and a pilot signal, each terminal derives a signal-to-noise ratio. Each terminal transmits the signal-to-noise ratio to the base station as a power control signal. On the basis of signal-to-noise information received from each terminal as the power control signal, the base station controls signal transmission power for each terminal.

    摘要翻译: 在扩展频谱通信系统中,用于频谱扩展的一系列正交码中的一个(Wn)被分配给终端中的信噪比测量。 基于通过使用上述正交码Wn解调从天线接收的信号而检测的噪声信号和导频信号,每个端子导出信噪比。 每个终端将信噪比作为功率控制信号发送到基站。 基于从每个终端接收到的信号噪声信息作为功率控制信号,基站控制每个终端的信号传输功率。

    Coordinate input device for accurate detection of coordinates of a point on a writing panel having an increased size
    50.
    发明授权
    Coordinate input device for accurate detection of coordinates of a point on a writing panel having an increased size 失效
    坐标输入装置,用于准确检测具有增大尺寸的书写面板上的点的坐标

    公开(公告)号:US06256023B1

    公开(公告)日:2001-07-03

    申请号:US09111129

    申请日:1998-07-06

    IPC分类号: G09G500

    CPC分类号: G06F3/0436

    摘要: A coordinate input device includes a writing panel which includes a writing surface having two vertical sides and two horizontal sides. A plurality of transmitting units transmit surface acoustic waves SAW to propagate the SAW within the writing panel in one of a vertical direction and a horizontal direction through reflection. A plurality of receiving units receive the SAW from the plurality of transmitting units through reflection, and output detection signals in response to the received SAW, so that coordinates of a specified point on the writing panel are detected based on the detection signals. A plurality of reflectors, provided on the four sides of the writing surface, reflect the SAW from the transmitting units inwardly to the writing panel and reflect the reflected SAW to the receiving units. In the coordinate input device, the plurality of reflectors, the plurality of transmitting units, and the plurality of receiving units are divided into at least two groups with respect to one of the vertical direction and the horizontal direction, respectively, and symmetrically placed about a predetermined line of the writing panel.

    摘要翻译: 坐标输入装置包括书写面板,书写面板具有书写面,具有两个垂直边和两个水平边。 多个发送单元透射表面声波SAW,以通过反射在垂直方向和水平方向之一上在写入面板内传播SAW。 多个接收单元通过反射从多个发送单元接收SAW,并且响应于所接收的SAW输出检测信号,从而基于检测信号检测写入面板上的指定点的坐标。 设置在书写表面四侧的多个反射器将SAW从发送单元向内反射到书写面板,并将反射的SAW反射到接收单元。 在坐标输入装置中,多个反射器,多个发送单元和多个接收单元分别相对于垂直方向和水平方向之一分成至少两组,并且对称地放置在 书写面板的预定线。