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    • 71. 发明申请
    • Communications device and wireless communications system
    • 通信设备和无线通信系统
    • US20060020871A1
    • 2006-01-26
    • US11061518
    • 2005-02-22
    • Kazuhisa ObuchiTetsuya YanoShunji Miyazaki
    • Kazuhisa ObuchiTetsuya YanoShunji Miyazaki
    • H03M13/00
    • H04L1/005H03M13/2771H03M13/2957H03M13/2975H04L1/0041H04L1/0052H04L1/0061H04L1/0071
    • A turbo coding device and turbo decoding device that allow for the presence of interleaving in the error correction coding process improves error correction capability even when the decoding device does not employ a scheme whereby extrinsic information is circulated as in a turbo decoding device. A turbo decoding device for decoding data that is obtained by performing error detection coding on a plurality of data blocks and further subjecting that data to turbo coding that includes interleaving in the coding process, comprises a rearrangement unit operable to perform interleaving between a first decoding a second decoding, an error detection unit operable to perform error detection processing for each block based on data after the first decoding, and an adjustment unit operable to adjust a likelihood indicated by data obtained after decoding in the first decoder but prior to the interleaving and corresponding to blocks evaluated as having no errors by the error detection unit, so as to increase reliability of the data.
    • 即使在解码装置不采用如Turbo解码装置那样外来信息循环的方案的情况下,允许在纠错编码处理中存在交织的turbo编码装置和turbo解码装置改善了纠错能力。 一种用于解码通过对多个数据块执行错误检测编码而获得的数据的turbo解码装置,并且在编码处理中进一步对该数据进行包括交织的turbo编码,其包括可重新排列单元,用于执行第一解码 第二解码装置,用于根据第一解码后的数据对每个块执行错误检测处理的错误检测单元,以及调整单元,用于调整在第一解码器中解码之后但在交织之前获得的数据所表示的似然性, 被错误检测单元评估为没有错误的块,以便增加数据的可靠性。
    • 73. 发明授权
    • CDMA receiving apparatus
    • CDMA接收装置
    • US06501789B2
    • 2002-12-31
    • US09792820
    • 2001-02-23
    • Tetsuya YanoKazuhisa Obuchi
    • Tetsuya YanoKazuhisa Obuchi
    • H04L102
    • H04B1/707H04L1/20
    • Disclosed herein is a receiving apparatus in a CDMA communication system for transmitting a transmit data subjected to a spread modulation processing with a predetermined spreading factor, and demodulating the transmit data by subjecting received signals to a despread processing. A first despread signal generator multiplies a received signal by the same code as a spreading code on the transmission side for each chip, divides the results of multiplications for all the chips into a plurality of groups, and sums the results of multiplications in each group so as to output respectively a despread signal having a spreading factor which is smaller than the spreading factor on the transmission side. A second despread signal generator sums respective k pair of the despread signals which are output from the first despread signal generator so as to generate a plurality of despread signals having a predetermined spreading factor. A bit error rate estimator judges whether the transmit data is “0” or “1” from each of the plurality of despread signals in a predetermined spreading factor, and estimates a bit error rate BER in the predetermined spreading factor by using the results of judgments.
    • 这里公开了一种CDMA通信系统中的接收装置,用于以预定的扩频因子发送经过扩展调制处理的发送数据,并且通过对接收到的信号进行解扩处理来解调发送数据。 第一解扩信号发生器将接收到的信号与每个芯片的发送侧的扩展码相乘的代码相乘,将所有码片的乘法结果除以多个组,并将每组中的乘法结果相加 分别输出在发送侧具有小于扩频因子的扩展因子的去扩展信号。 第二解扩信号发生器对从第一解扩信号发生器输出的各k个解扩信号进行求和,以产生具有预定扩频因子的多个解扩信号。 误码率估计器以预定的扩频因子判断发送数据是否为多个解扩信号中的每一个发送数据是“0”还是“1”,并且通过使用判断结果来估计预定扩频因子中的误码率BER 。
    • 75. 发明申请
    • POWER SUPPLY UNIT AND IMAGE FORMING APPARATUS
    • 电源单元和图像形成装置
    • US20130169990A1
    • 2013-07-04
    • US13728155
    • 2012-12-27
    • Yu YOSHIOKATetsuya Yano
    • Yu YOSHIOKATetsuya Yano
    • H04N1/00H02J1/00
    • H04N1/00899G03G15/80G03G2215/0132H02J1/00H02J9/061H04N1/00901H04N2201/0082H04N2201/0091H04N2201/0093H04N2201/0094Y10T307/696
    • A power supply unit includes a first power supply configured to supply electric power to a load using electric power supplied from an external power source; a second power supply configured to store the electric power supplied from the external power source and supply the stored electric power to the load; a no-power detecting unit configured to monitor a voltage of the external power source and detect no electric power from the external power source; and an output switching unit configured to switch the electric power to be supplied to the load to the electric power supplied from the second power supply when the no-power detecting unit detects no electric power. A first setting value that is a target output voltage of the first power supply is larger than a second setting value that is a target output voltage of the second power supply.
    • 电源单元包括:第一电源,被配置为使用从外部电源供应的电力向负载供电; 第二电源,被配置为存储从外部电源提供的电力并将存储的电力提供给负载; 无功率检测单元,被配置为监视外部电源的电压并且不检测来自外部电源的电力; 以及输出切换单元,其被配置为当所述无功率检测单元检测到无电力时,将要提供给所述负载的电力切换到从所述第二电源供应的电力。 作为第一电源的目标输出电压的第一设定值大于作为第二电源的目标输出电压的第二设定值。