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    • 51. 发明授权
    • Compression/expansion method of time-scale of sound signal
    • 声音信号时间尺度的压缩/扩展方法
    • US5781885A
    • 1998-07-14
    • US888527
    • 1997-07-07
    • Takeo InoueShozo Sugishita
    • Takeo InoueShozo Sugishita
    • G10L21/04G10L5/02
    • G10L21/04
    • At a time of compression, two sound waveform segments each having single pitch length are cut-out from an input sound waveform at a time point represented by a current pointer and at a time point advanced from the time point by a single pitch period, respectively, and then, by adding the two sound waveform segments to each other after being multiplied by window functions, a single sound waveformn segment being compressed is produced. Next, the pointer is moved on the input sound waveform according to a compression rate, and then, a similar operation is repeated to produce a sound signal being compressed. At a time of expansion, two sound waveform segments each having double pitch length are cut-out from the sound waveform thus compressed at a time point represented by the current pointer and at a time point delayed from the time point by the single pitch period, respectively, and then, by adding the two sound wave segments to each other after being multiplied by window functions, a single synthesized sound wave form segment is obtained. Next, the pointer is moved on the sound waveform being compressed according to an expansion rate, and then, by repeating a similar operation, a sound signal being expanded is obtained.
    • 在压缩时,分别具有单个节距长度的两个声音波形段从由当前指针表示的时间点的输入声音波形和从时间点延迟单个音调周期的时间点分别切出 ,然后通过在乘以窗函数之后将两个声音波形段相加,产生被压缩的单个声音波形段。 接下来,根据压缩率将指针移动到输入声音波形上,然后重复类似的操作以产生被压缩的声音信号。 在扩展时,从由当前指针表示的时间点和从时间点延迟单个音调周期的时间点,从这样压缩的声音波形中切出两个具有双音调长度的声音波形段, 然后,通过在乘以窗函数之后将两个声波段相加,获得单个合成声波段。 接下来,将指针按照扩展速率在被压缩的声音波形上移动,然后通过重复类似的操作,获得正在扩展的声音信号。
    • 52. 发明授权
    • Corrosion resistant metal pipe with electrode for oil wells
    • 具有油井电极的耐腐蚀金属管
    • US4665305A
    • 1987-05-12
    • US713664
    • 1985-03-19
    • Takashi ShirazawaTakeo Inoue
    • Takashi ShirazawaTakeo Inoue
    • B32B15/04B21C37/06B32B1/08C03C14/00E21B17/00E21B36/04H05B3/03E21B43/24
    • E21B36/04E21B17/003
    • A corrosion-resistant metal pipe, and a process for producing the same, such as may be used in an electrode unit for electrically heating underground hydrocarbon resources or for conveying corrosive materials. The pipe may be produced in any desired length. In one embodiment, the corrosion-resistant pipe includes a base pipe element composed of at least two corrosion-resistant pipes joined by welding. The two pipes are stripped at adjacent ends of a first coat made of a glass-mica molded body formed on both inner and outer surfaces of the pipe. A plurality of communication holes are formed in the joint provided by welding the pipes. A second coat formed of a glass-mica molded body is then provided on both inner and outer surfaces of the joint with the second coat continuous with the first coat.
    • 耐腐蚀金属管及其制造方法可用于电加热地下烃类资源或输送腐蚀性物质的电极单元。 管可以以任何期望的长度生产。 在一个实施例中,耐腐蚀管包括由至少两个通过焊接连接的耐腐蚀管构成的基管元件。 两根管子在由形成在管的内表面和外表面上的玻璃云母模制体形成的第一涂层的相邻端部剥离。 在通过焊接焊接提供的接头中形成多个连通孔。 然后在接头的内表面和外表面上设置由玻璃云母模制体形成的第二涂层,第二涂层与第一涂层连续。
    • 54. 发明授权
    • Electronic circuit capable of stably keeping a frequency during presence
of a burst
    • 能够在存在突发时稳定地保持频率的电子电路
    • US4633510A
    • 1986-12-30
    • US687343
    • 1984-12-28
    • Fumiaki SuzukiToshiyuki TakedaTakeo InoueShigeo Nakajima
    • Fumiaki SuzukiToshiyuki TakedaTakeo InoueShigeo Nakajima
    • H03L7/14H04B1/40H04B7/15H04B7/155H04B1/00
    • H04B1/40H03L7/14
    • In a radio communication system, a transmitting section of a substation comprises a controlling circuit (21) for controlling a carrier frequency of a local oscillator (24) in response to a frequency deviation signal. A burst generating circuit (26) generates a burst in response to the input signal, a burst control signal, and a local oscillation signal of the carrier frequency. The transmitting section further comprises a holding circuit (34) responsive to a frequency control signal and the burst control signal. During presence of the burst control signal, the holding circuit holds the frequency control signal received before a beginning of the burst control signal to keep the carrier frequency of the local oscillation signal invariable until an end of the burst control signal. Otherwise, the frequency control signal passes through the holding circuit as it stands. Consequently, the carrier frequency of the local oscillation signal is controlled only during absence of the input signal and is kept invariable during presence of the input signal.
    • 在无线电通信系统中,变电站的发送部分包括用于响应于频率偏差信号来控制本地振荡器(24)的载波频率的控制电路(21)。 突发发生电路(26)响应于输入信号,脉冲串控制信号和载波频率的本地振荡信号产生脉冲串。 发送部分还包括响应于频率控制信号和突发控制信号的保持电路(34)。 在脉冲串控制信号的存在期间,保持电路保持在突发控制信号开始之前接收到的频率控制信号,以保持本地振荡信号的载波频率不变,直到脉冲串控制信号的结束。 否则,频率控制信号就一直通过保持电路。 因此,本地振荡信号的载波频率仅在没有输入信号的情况下被控制,并且在存在输入信号的过程中保持不变。