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    • 1. 发明授权
    • Base station, receiving apparatus, and receiver trouble diagnosing method
    • 基站,接收设备和接收机故障诊断方法
    • US08082006B2
    • 2011-12-20
    • US11914264
    • 2005-12-19
    • Yoshiaki HasegawaAkihiro SaitoTomoya UchiikeYoshihiro Kanomata
    • Yoshiaki HasegawaAkihiro SaitoTomoya UchiikeYoshihiro Kanomata
    • H04M1/00H04B1/38
    • H04W88/08H04B1/18H04B17/21H04W24/00
    • A receiver of a wireless base station that uses a simple mode to detect a failure is provided, and an SW 201 switches whether an input port of the receiver 133 is to be connected with an antenna 114 or to be terminated. An LNA (a low noise amplifier) 205 amplifies an input signal with a low distortion. SWs 202 and 203 switch between a first path which runs through the LNA 205 and a second path 204 which does not run through the LNA 205. An AGC AMP, the gain of which is controlled such that the output thereof is constant, amplifies the signal with the controlled gain. A base station control section uses the SW 201 to terminate the input port of the receiver so that thermal noise is input to the LNA 205. Further, the SWs 202 and 203 are changed over to determine the normality of the receiver based on the fact that a first gain of an AGC-AMP 211 when connected to the first path, a second gain of the AGC-AMP 211 when connected to the second path, and a difference between the first and second gains fall within their respective predetermined ranges.
    • 提供了使用简单模式来检测故障的无线基站的接收机,并且SW201切换接收机133的输入端口是否与天线114连接或被终止。 LNA(低噪声放大器)205以低失真放大输入信号。 SW 202和203在穿过LNA 205的第一路径和不穿过LNA 205的第二路径204之间切换。AGC AMP,其增益被控制使得其输出恒定,放大信号 具有可控增益。 基站控制部分使用SW 201终止接收机的输入端口,使得热噪声被输入到LNA 205.此外,SW 202和203被转换以基于以下事实来确定接收机的正常性: 连接到第一路径时AGC-AMP 211的第一增益,当连接到第二路径时AGC-AMP 211的第二增益,以及第一和第二增益之间的差落在它们各自的预定范围内。
    • 2. 发明申请
    • Base Station, Receiving Apparatus, and Receiver Trouble Diagnosing Method
    • 基站,接收设备和接收机故障诊断方法
    • US20090170560A1
    • 2009-07-02
    • US11914264
    • 2005-12-19
    • Yoshiaki HasegawaAkihiro SaitoTomoya UchiikeYoshihiro Kanomata
    • Yoshiaki HasegawaAkihiro SaitoTomoya UchiikeYoshihiro Kanomata
    • H04M1/00H04B1/06H04B17/00
    • H04W88/08H04B1/18H04B17/21H04W24/00
    • A receiver of a wireless base station that uses a simple mode to detect a failure is provided, and an SW 201 switches whether an input port of the receiver 133 is to be connected with an antenna 114 or to be terminated. An LNA (a low noise amplifier) 205 amplifies an input signal with a low distortion. SWs 202 and 203 switch between a first path which runs through the LNA 205 and a second path 204 which does not run through the LNA 205. An AGC AMP, the gain of which is controlled such that the output thereof is constant, amplifies the signal with the controlled gain. A base station control section uses the SW 201 to terminate the input port of the receiver so that thermal noise is input to the LNA 205. Further, the SWs 202 and 203 are changed over to determine the normality of the receiver based on the fact that a first gain of an AGC-AMP 211 when connected to the first path, a second gain of the AGC-AMP 211 when connected to the second path, and a difference between the first and second gains fall within their respective predetermined ranges.
    • 提供了使用简单模式来检测故障的无线基站的接收机,并且SW 201切换接收机133的输入端口是否与天线114连接或被终止。 LNA(低噪声放大器)205以低失真放大输入信号。 SW 202和203在穿过LNA 205的第一路径和不穿过LNA 205的第二路径204之间切换。AGC AMP,其增益被控制使得其输出恒定,放大信号 具有可控增益。 基站控制部分使用SW 201终止接收机的输入端口,使得热噪声被输入到LNA 205.此外,SW 202和203被转换以基于以下事实来确定接收机的正常性: 连接到第一路径时AGC-AMP 211的第一增益,当连接到第二路径时AGC-AMP 211的第二增益,以及第一和第二增益之间的差落在它们各自的预定范围内。
    • 5. 发明申请
    • SLIDE ACTION TYPE HINGED-LID PACKAGE
    • 滑动动作类型铰链包装
    • US20110062175A1
    • 2011-03-17
    • US12948819
    • 2010-11-18
    • Tetsuya NAKAMURAShunsuke TawadaHidehisa TokitaMasahiro FukuiAkihiro Saito
    • Tetsuya NAKAMURAShunsuke TawadaHidehisa TokitaMasahiro FukuiAkihiro Saito
    • B65D43/16
    • B65D85/1054
    • A slide action type hinged-lid package (2) includes an inner case (6) having a lid (4), and an outer body (8) slidably accommodating the inner case. The outer body has an opening (46) formed through a front wall thereof (40) and allowing the inner case to be partly exposed, and a contact piece (48) provided at the rear edge of an upper open end thereof (38) and extending toward the interior of the outer body. The inner case has a reinforcing member arranged on the inside of a front wall thereof (14) which is exposed through the opening, and a strip (34) connected to the rear part of the lid and capable of engaging with the contact piece. When the inner case is slid up relative to the outer body, the engagement between the strip and the contact piece causes the lid to open and also regulates the amount of sliding of the inner case.
    • 滑动式铰接盖包装(2)包括具有盖(4)的内壳(6)和可滑动地容纳内壳的外体(8)。 外体具有通过其前壁(40)形成并允许内壳部分露出的开口(46),以及设置在其上开口端(38)的后边缘处的接触片(48)和 延伸到外部本体的内部。 内壳体具有设置在其前壁(14)的内侧的加强构件(14),该加强构件通过开口暴露,以及连接到盖的后部并且能够与接触片接合的条带(34)。 当内侧壳体相对于外部主体滑动时,带材和接触片之间的接合使得盖子打开并且还调节内侧壳体的滑动量。
    • 7. 发明授权
    • Auto power control circuit for laser diode
    • 激光二极管自动功率控制电路
    • US06792013B2
    • 2004-09-14
    • US09988322
    • 2001-11-19
    • Hiromasa IshiwataAkihiro Saito
    • Hiromasa IshiwataAkihiro Saito
    • H01S300
    • H01S5/0683H01S5/042H01S5/0617
    • An auto laser power control circuit is provided which improves the response of the optical output level of a laser diode in accordance with variations in the operation mode. In an auto laser power control circuit for comparing a voltage corresponding to the optical output from the laser diode which emits a light in accordance with a supplied driving current with a reference voltage, and controlling the driving current so as to reduce the difference at the time of the steady operation, by controlling a switch connected between the input and output terminals of an operational unit which compares the voltage corresponding to the optical output from the laser diode and the reference voltage, the driving current to the laser diode is controlled with a smaller time constant upon the start such as a transition of from a read operation mode to a write operation mode as compared with the time of the steady operation.
    • 提供一种自动激光功率控制电路,其根据操作模式的变化提高激光二极管的光输出电平的响应。在用于比较与激光二极管的光输出相对应的电压的自动激光功率控制电路中, 其根据所提供的具有参考电压的驱动电流发射光,并且通过控制连接在操作单元的输入和输出端子之间的开关来控制驱动电流以减小稳定操作时的差异 其比较对应于来自激光二极管的光输出的电压和参考电压,到激光二极管的驱动电流在开始时以较小的时间常数来控制,例如从读操作模式转换到写操作模式 与稳定运行的时间相比。
    • 10. 发明授权
    • Electrophotographic printing device
    • 电子照相印刷装置
    • US5276461A
    • 1994-01-04
    • US509597
    • 1990-04-13
    • Akihiro Saito
    • Akihiro Saito
    • G03G15/00G03G21/18B41J2/47G03G21/00H01R13/62
    • G03G21/1889G03G15/5079G03G15/55G03G15/553G03G2215/00092G03G2215/00109G03G2221/1606G03G2221/1636G03G2221/1654G03G2221/1663G03G2221/1823G03G2221/183
    • A laser printer comprises a cartridge of a photosensitive unit, a printing mechanism for effecting a printing operation by electrifying a photosensitive member of the photosensitive unit, applying a light beam to the electrified photosensitive member to form an electrostatic latent image thereon, developing the electrostatic latent image to create a visible image and then transferring the image to printing paper, and a nonvolatile memory for storing data indicating the printing history of the photosensitive unit. The printing device further comprises a microprocessor for updating the data stored in the nonvolatile memory each time the printing operation is effected, checking whether the data stored in the nonvolatile memory has reached a value corresponding to a service life of the photosensitive unit, and generating a replacement requiring signal when it is detected that the data stored in the nonvolatile memory has reached the value.
    • 激光打印机包括感光单元的盒,用于通过使感光单元的感光构件通电来进行打印操作的打印机构,将光束施加到带电的感光构件上以在其上形成静电潜像,显影静电潜像 图像以创建可见图像,然后将图像传送到打印纸;以及非易失性存储器,用于存储指示感光单元的打印历史的数据。 打印装置还包括微处理器,用于在每次打印操作时更新存储在非易失性存储器中的数据,检查存储在非易失性存储器中的数据是否已经达到与感光单元的使用寿命相对应的值, 当检测到存储在非易失性存储器中的数据已经达到该值时的替换需求信号。