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    • 21. 发明授权
    • Code error detecting circuit
    • 代码错误检测电路
    • US5917841A
    • 1999-06-29
    • US748509
    • 1996-11-08
    • Yukio KodamaKazuo Murakami
    • Yukio KodamaKazuo Murakami
    • G06F11/10G11B20/18H03M13/00H03M13/09H03M13/15H04L1/00G06F11/00
    • H03M13/09H03M13/15
    • A Cyclic Redundancy Check (CRC) code word except a fixed pattern is provided to a code data input terminal of a division circuit in synchronization with a clock signal and divided at the division circuit, then, a remainder data of the division result is outputted from output terminals. The remainder data outputted from the output terminals is compared with a CRC inherent value at a comparison circuit, and a comparison result signal indicating whether the CRC code word includes errors is outputted. A temporary memory means takes in the comparison result signal in response to rise of a clock signal inputted into a clock signal input terminal, temporarily stores it, then output its storage contents as an error detecting signal via an output node.
    • 除了固定模式之外的循环冗余校验(CRC)码字被提供给与时钟信号同步的分频电路的码数据输入端,并在分频电路中分频,然后从分频电路输出除法结果的余数数据 输出端子。 将从输出端子输出的余数与比较电路的CRC固有值进行比较,并输出指示CRC码字是否包含错误的比较结果信号。 临时存储器装置响应于输入到时钟信号输入端的时钟信号的上升而接收比较结果信号,暂时存储,然后通过输出节点输出其存储内容作为错误检测信号。
    • 22. 发明授权
    • CRC code generation circuit for generating a CRC code and a code error
detection circuit for detecting a code error in a CRC code word
    • 用于产生CRC码的CRC码产生电路和用于检测CRC码字中的码错误的码错误检测电路
    • US5870413A
    • 1999-02-09
    • US820385
    • 1997-03-12
    • Yukio KodamaKazuo Murakami
    • Yukio KodamaKazuo Murakami
    • H03M13/00G06F11/10
    • H03M13/09
    • When encoding, data bits in a CRC code word are received for every bit by a dividing circuit where the CRC code word is divided by a generation polynomial and a remainder is output from parallel data output terminals. The remainder is added to a CRC intrinsic value and "0" information in the adder. The addition result is a CRC code in a CRC code word for transmission. When a code error is detected, data bits in a CRC code word and a CRC code are received for every bit by the dividing circuit, where they are divided by the generation polynomial and a remainder is output from the respective parallel data terminals. The remainder data is added to the CRC intrinsic value in the adder, and the result is further processed by a logical sum circuit. The logical sum is output as a CRC flag. The present invention provides a CRC code generation circuit for generating a CRC code in a CRC code word at high speed as well as a code error detection circuit for detecting a code error in a CRC code word at high speed.
    • 当编码时,通过分割电路为每个比特接收CRC码字中的数据比特,其中CRC码字被生成多项式除以余数由并行数据输出端输出。 其余部分加到CRC固有值,加法器中加上“0”信息。 相加结果是用于传输的CRC码字中的CRC码。 当检测到代码错误时,由分割电路为每个位接收CRC码字和CRC码中的数据位,并将其除以生成多项式,并从各个并行数据终端输出余数。 剩余数据被加到加法器中的CRC固有值,结果被逻辑和电路进一步处理。 逻辑和作为CRC标志输出。 本发明提供了一种用于以高速CRC码字生成CRC码的CRC码生成电路,以及用于以高速检测CRC码字中的码错误的码错误检测电路。
    • 25. 发明授权
    • Performance recording and playback apparatus
    • 性能录音和播放设备
    • US5523525A
    • 1996-06-04
    • US106079
    • 1993-08-13
    • Kazuo MurakamiAkira Hashimoto
    • Kazuo MurakamiAkira Hashimoto
    • G09B5/06G09B15/00G10H1/00G11B27/00G11B27/032G11B27/10G09B15/04H04B7/00H04B7/08
    • G11B27/10G09B15/00G09B5/065G10H1/0041G11B27/002G11B27/032G11B2220/90
    • A performance recording and playback apparatus is provided between a performance apparatus and a video apparatus in an audio/video recording and playback system. The performance apparatus is capable of producing and reproducing performance data, while the video apparatus is capable of recording and playing back performance data and video data on a single recording medium. Herein, the performance data produced from the performance apparatus is supplied to and recorded by the video apparatus. Under the operation of the performance recording and playback apparatus, a recording operation of the video apparatus is controlled such that the performance data is recorded in synchronism with the video data, while playback operations of the video apparatus and performance apparatus are also controlled such that the performance data which is played back from the recording medium and then supplied to the performance apparatus is reproduced in synchronism with the video data which is played back from the recording medium and is displayed on a display device. Preferably, the performance apparatus is an automatic player piano or an electronic musical instrument, while the video apparatus is a video tape recorder so that the recording medium is a video tape.
    • 在音频/视频记录和回放系统中的演奏装置和视频装置之间提供演奏记录和重放装置。 性能装置能够产生和再现性能数据,而视频装置能够在单个记录介质上记录和播放性能数据和视频数据。 这里,从演奏装置产生的演奏数据被提供给视频装置并由视频装置记录。 在演奏记录和播放装置的操作下,控制视频装置的记录操作,使得与视频数据同步地记录演奏数据,同时还控制视频装置和演奏装置的播放操作,使得 从记录介质再现并随后提供给演奏装置的演奏数据与从记录介质再现的视频数据同步再现并显示在显示装置上。 优选地,演奏装置是自动演奏器钢琴或电子乐器,而视频装置是录像机,使得记录介质是录像带。
    • 26. 发明授权
    • Motor driven compressor
    • 电动压缩机
    • US08152490B2
    • 2012-04-10
    • US12334025
    • 2008-12-12
    • Masao IguchiMasahiro KawaguchiKen SuitouHiroshi FukasakuTatsushi MoriKazuo Murakami
    • Masao IguchiMasahiro KawaguchiKen SuitouHiroshi FukasakuTatsushi MoriKazuo Murakami
    • F04B17/00
    • F04C18/0215F04C29/047F04C2230/604F04C2240/808
    • A motor-driven compressor has a compression mechanism, a rotary shaft, an electric motor, a motor drive circuit and a housing assembly. The compression mechanism, the electric motor and the motor drive circuit are disposed along the axial direction of the rotary shaft in the housing assembly. The housing assembly has first and second housings. The first housing mounts the electric motor and the compression mechanism. The first housing has first and second mounting lugs formed integrally with the peripheral surface of the first housing. The second housing is joined to the first housing for accommodating the motor drive circuit. The second housing has a third mounting lug formed integrally with the second housing. The first through third mounting lugs are fastened to a mounting object to which the motor-driven compressor is to be mounted by means of fastening members.
    • 电动压缩机具有压缩机构,旋转轴,电动机,马达驱动电路和壳体组件。 压缩机构,电动机和电动机驱动电路沿壳体组件中的旋转轴的轴向设置。 壳体组件具有第一和第二壳体。 第一壳体安装电动机和压缩机构。 第一壳体具有与第一壳体的外周表面一体形成的第一和第二安装凸耳。 第二壳体接合到第一壳体以容纳马达驱动电路。 第二壳体具有与第二壳体一体形成的第三安装凸耳。 第一至第三安装凸耳通过紧固构件紧固到安装对象,电动压缩机将被安装到该安装对象上。