Howling remover having cascade connected equalizers suppressing multiple
noise peaks
    91.
    发明授权
    Howling remover having cascade connected equalizers suppressing multiple noise peaks 失效
    具有串联连接的均衡器的啸声去除器抑制多个噪声峰值

    公开(公告)号:US5710823A

    公开(公告)日:1998-01-20

    申请号:US526771

    申请日:1995-09-11

    IPC分类号: G10K15/00 H04R3/02 H04R27/00

    CPC分类号: H04R3/02

    摘要: A howling prevention apparatus prevents a howling noise which is generated in a sound amplification system using a microphone and a loudspeaker. The howling prevention apparatus utilizes a plural number of first to n-th equalizers, which have a variable frequency response and which modulate an output of the microphone. A detector detects a frequency point at which a loop gain of the system reaches a peak while supplying a standard noise signal to the loudspeaker to produce a test sound and measuring the sound collected by the microphone through the series of the equalizers. A frequency response of the first equalizer is adjusted to suppress a noise peak at and around a frequency point detected by the detector. Then, a frequency response of the second equalizer is also adjusted to suppress a noise peak at and around another frequency point detected by the detector. Lastly, a frequency response of the n-th equalizer is adjusted by subsequently repeating the above setting procedure.

    摘要翻译: 啸叫防止装置防止在使用麦克风和扬声器的声音放大系统中产生的啸声。 啸声预防装置利用具有可变频率响应并且调制麦克风的输出的多个第一至第N均衡器。 检测器检测系统的环路增益达到峰值的频率点,同时向扬声器提供标准噪声信号以产生测试声音,并通过一系列均衡器测量由麦克风收集的声音。 调整第一均衡器的频率响应以抑制由检测器检测的频点处和周围的噪声峰值。 然后,还调整第二均衡器的频率响应,以抑制由检测器检测到的另一频率点处和周围的噪声峰值。 最后,通过随后重复上述设置过程来调整第n个均衡器的频率响应。

    Wood board and flooring material
    92.
    发明授权
    Wood board and flooring material 失效
    木板和地板材料

    公开(公告)号:US5554429A

    公开(公告)日:1996-09-10

    申请号:US274969

    申请日:1994-07-14

    摘要: A wood board comprising a core layer comprising one or more strand boards formed by using a foaming binder, and at least one surface layer comprising oriented strand board, which is laminated to at least one surface of the core layer, the foaming binder being a mixture of a foaming resin and a non-foaming resin at a ratio within a range of 4:1-1:4. It is preferable that the thin wooden strips comprising the surface layer has at least one of an average length value and an average width value thereof which is larger than that of the thin wooden strips comprising the core layer. The wood board of the present invention has particularly superior resistance to moisture, and has low density and high strength. In the wood board of the present invention, it is possible to adjust the anisotropy of the strength thereof by adjusting the number of layers or the thickness thereof. The present invention furthermore provides a flooring material having high strength in which a decorative single sheet is applied to at least one surface of the wood board described above.

    摘要翻译: 一种木板,其包括芯层,所述芯层包括通过使用发泡粘合剂形成的一个或多个股线板,以及至少一个包含定向刨花板的表面层,其被层压到所述芯层的至少一个表面上,所述发泡粘合剂是混合物 发泡树脂和不发泡树脂的比例在4:1-1:4的范围内。 优选地,包含表面层的薄木条具有平均长度值和平均宽度值中的至少一个,其大于包括芯层的薄木条的平均长度值和平均宽度值中的至少一个。 本发明的木板具有特别优异的耐湿性,并且具有低密度和高强度。 在本发明的木板中,通过调节层数或其厚度,可以调节其强度的各向异性。 本发明还提供了一种具有高强度的地板材料,其中将装饰性单片施加到上述木板的至少一个表面。

    Stator for miniature motors
    93.
    发明授权
    Stator for miniature motors 失效
    小型电机定子

    公开(公告)号:US5473210A

    公开(公告)日:1995-12-05

    申请号:US287167

    申请日:1994-08-08

    摘要: A stator for miniature motors having a permanent magnet fixedly fitted to the inner circumferential surface of a housing formed into a bottomed hollow cylindrical shape, in which the circumferential surface of the housing consists of two opposing flat parts and two concave cylindrical surfaces; engaging projections are provided on the flat parts, and flat surfaces coming in contact with said flat parts, and engaging surfaces facing coming in contact with the engaging projections are provided on the axial edge of the permanent magnet made of a flexible ferromagnetic material, and formed into an arc-segment shape in cross section; and the permanent magnet is fixedly fitted in the housing by bringing the arc-segment-shaped outer circumferential surfaces of the permanent magnet in contact with the cylindrical surfaces of the housing, and bringing the flat surfaces on the axial edges of the permanent magnet in contact with the flat parts by causing the engaging projections to cut into the engaging surfaces by the plastic deformation of the engaging projections in a state where the permanent magnet is inserted into the housing.

    摘要翻译: 一种用于微型电动机的定子,其具有固定地装配到形成为有底的中空圆柱形的壳体的内周表面的永磁体,其中壳体的周向表面由两个相对的平坦部分和两个凹形的圆柱形表面组成; 在平坦部分上设有接合突起,与平坦部分接触的平坦表面和与接合突起接触的接合表面设置在由柔性铁磁材料制成的永磁体的轴向边缘上,并形成 横截面为弧形; 并且永磁体通过使永磁体的弧形外周面与壳体的圆筒形表面接触而固定地装配在壳体中,并且使永磁体的轴向边缘上的平坦表面接触 通过在永磁体插入到壳体中的状态下通过接合突起的塑性变形使啮合凸起切入到接合表面中。

    Electronic musical instrument having key after-sensors and stroke
sensors to determine differences between key depressions
    94.
    发明授权
    Electronic musical instrument having key after-sensors and stroke sensors to determine differences between key depressions 失效
    电子乐器具有关键的后传感器和行程传感器,以确定按键凹陷之间的差异

    公开(公告)号:US5453571A

    公开(公告)日:1995-09-26

    申请号:US20858

    申请日:1993-02-19

    摘要: An electronic musical instrument includes a key support portion, a plurality of keys pivotally supported on the key support portion, a musical tone signal generator, after sensors, and a musical tone signal control unit. The musical tone signal generator generates a musical tone signal corresponding to each of the plurality of keys. Each after sensor has a plurality of sensors and is arranged in correspondence with the plurality of keys and operated near key depression end positions to for independently generate pieces of key information. The musical signal control unit controls the musical tone signal generator on the basis of the key information.

    摘要翻译: 电子乐器包括按键支撑部分,枢轴支撑在键支撑部分上的多个键,音乐信号发生器,传感器之后以及乐音信号控制单元。 乐音信号发生器产生与多个键中的每一个相对应的乐音信号。 每个后传感器具有多个传感器,并且与多个键对应地布置并且在键按压结束位置附近操作以独立地生成多个键信息。 音乐信号控制单元基于密钥信息来控制乐音信号发生器。

    Elevator control apparatus with compensation for current sensor offset
voltage
    95.
    发明授权
    Elevator control apparatus with compensation for current sensor offset voltage 失效
    电梯控制装置补偿电流传感器偏移电压

    公开(公告)号:US5407027A

    公开(公告)日:1995-04-18

    申请号:US945619

    申请日:1992-09-16

    CPC分类号: H02M7/53875 B66B1/30

    摘要: An elevator control apparatus has a converter for converting AC power to DC power, an inverter for converting the DC power resulting from the conversion by the converter into AC voltage of a variable voltage and a variable frequency so as to drive with the AC voltage an induction motor for vertically moving an elevator car, a current detector for detecting the current output by the inverter and for producing an output signal indicative of the detected current, a current command generating circuit for generating a current command value for the induction motor, and a control circuit for controlling the inverter on the basis of both the current command value from the current command generating circuit and the output signal from the current detector. The control apparatus includes a cancellation circuit for cancelling offset voltage by storing, when the inverter is stopped while the current command generating circuit keeps generating the current command value, the output signal of the current detector, and by adding, when the inverter is in operation, the stored output signal to the present output signal of the current detector.

    摘要翻译: 电梯控制装置具有用于将AC电力转换为DC电力的转换器,用于将由转换器的转换产生的DC电力转换为可变电压和可变频率的AC电压的逆变器,以便以AC电压驱动感应 用于垂直移动电梯轿厢的电动机,用于检测逆变器的电流输出并产生表示检测电流的输出信号的电流检测器,用于产生感应电动机的电流指令值的电流指令产生电路,以及控制 基于来自电流指令发生电路的电流指令值和来自电流检测器的输出信号控制逆变器的电路。 该控制装置包括:消除电路,用于通过在电流指令发生电路持续产生电流指令值时停止逆变器时存储当前检测器的输出信号,并且当逆变器运行时 存储的输出信号到当前检测器的当前输出信号。

    Automatic performance device having a function of automatically
controlling storage and readout of performance data
    96.
    发明授权
    Automatic performance device having a function of automatically controlling storage and readout of performance data 失效
    自动演奏装置具有自动控制演奏数据的存储和读出功能

    公开(公告)号:US5347083A

    公开(公告)日:1994-09-13

    申请号:US96608

    申请日:1993-07-23

    摘要: A memory has plural storage areas for storing performance data of plural music pieces. When the player has input desired performance data via an input device like a keyboard, the thus-input performance data are automatically stored into a first storage area of the memory. At the same time, a specific search is executed by the search section to examine whether or not performance data of a music piece corresponding to the input performance data are already stored in the memory. If a second storage area storing the performance data corresponding to the input performance data has been detected or searched out, a series of the performance data stored in the second storage area are sequentially read out for an automatic reproductive performance. If, on the other hand, such a second storage area has not been detected, writing of the input performance data into the first storage area is continued without such an automatic reproductive performance being executed. Therefore, it is sufficient for the player to perform an operation to input a part or whole part of the desired music piece. Then, in response to the player's input operation, music piece number selection and readout or write processes are automatically carried out in accordance with the result of the search by the search section.

    摘要翻译: 存储器具有用于存储多个音乐片段的演奏数据的多个存储区域。 当播放器经由诸如键盘的输入设备输入期望的演奏数据时,这样输入的演奏数据被自动存储到存储器的第一存储区域中。 同时,搜索部分执行特定搜索,以检查与输入的演奏数据相对应的乐曲的演奏数据是否已经存储在存储器中。 如果已经检测或搜索存储与输入演奏数据相对应的演奏数据的第二存储区域,则顺序地读出存储在第二存储区域中的一系列演奏数据,以进行自动再现演奏。 另一方面,如果没有检测到这样的第二存储区域,则在不进行这样的自动再生性能的情况下,继续将输入性能数据写入到第一存储区域。 因此,播放器执行操作以输入所需乐曲的一部分或全部部分就足够了。 然后,响应于播放器的输入操作,根据搜索部分的搜索结果自动执行音乐片段编号选择和读出或写入处理。

    Electric contact material and electric contact using said material
    98.
    发明授权
    Electric contact material and electric contact using said material 失效
    使用所述材料的电接触材料和电接触

    公开(公告)号:US5338618A

    公开(公告)日:1994-08-16

    申请号:US951587

    申请日:1992-09-25

    摘要: An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, and Ag or Ag alloy as the remaining portion; an electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, at least one element selected from a group consisting of In, Sn, Zn, Mn, Pd, Sb, Cu, Mg, Pb, Cd, Cr and Bi by an amount of 0.1 to 1.0% by weight (however, in the case of Zn and Mn, the amount is set less than 0.5% by weight), and/or at least one element selected from a group consisting of Fe, Ni and Co by an amount of 0.03 to 0.6% by weight, and Ag as the remaining portion; and an electric contact formed by using the above material. It is excellent in the arc resistance, wear resistance an lubricity in a small current region and is suitable as the material for a slide contact and rotary slide contact.

    摘要翻译: 当以稀土量表示的至少一种稀土元素的Li的氧化物为0.05〜0.18重量%表示时,含有0.01〜2.0重量%的Li氧化物的电接触材料 元素,Ag或Ag合金作为剩余部分; 当以Li的量表示,含有0.01〜2.0重量%的Li氧化物的电接触材料,当以稀土元素的量表示时,至少一种稀土元素为0.05〜0.18重量% 选自由In,Sn,Zn,Mn,Pd,Sb,Cu,Mg,Pb,Cd,Cr和Bi组成的组中的至少一种元素,其量为0.1至1.0重量%(然而,在 Zn和Mn,其含量设定为小于0.5重量%),和/或至少一种选自Fe,Ni和Co的元素的量为0.03至0.6重量%,Ag为剩余量 一部分; 以及通过使用上述材料形成的电接触。 电弧电阻优良,耐磨性小,在小电流区域具有润滑性,适用于滑动接触和旋转滑动接触的材料。

    Miniature motor
    100.
    发明授权
    Miniature motor 失效
    微型电机

    公开(公告)号:US5315191A

    公开(公告)日:1994-05-24

    申请号:US37000

    申请日:1993-03-25

    申请人: Satoshi Suzuki

    发明人: Satoshi Suzuki

    摘要: A miniature motor having a housing formed into a bottomed hollow cylindrical shape. The inner circumferential surface to which a pair of permanent magnets, which are rare-earth plastic magnets of an essentially C shape in cross section, are fixedly fitted. An end cap is fitted to an open end of the housing, and a rotor is rotatably supported in the housing by bearings provided on the housing and the end cap. A pair of the permanent magnets are formed in such a manner that the magnetic force of each magnet is made different from each other so that the rotor can be attracted to the permanent magnet having a larger magnetic force. One of the permanent magnets is made of a rare-earth plastic magnet containing a coloring material.

    摘要翻译: 一种微型电动机,其具有形成为有底的中空圆柱形状的壳体。 作为截面为大致C形的稀土塑料磁体的一对永磁体的内周面固定地嵌合。 端盖装配到壳体的开口端,并且通过设置在壳体和端盖上的轴承将转子可旋转地支撑在壳体中。 以这样的方式形成一对永久磁铁,使得每个磁体的磁力彼此不同,使得转子可以被吸引到具有较大磁力的永磁体。 其中一个永磁体由含有着色材料的稀土塑料磁体制成。