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    • 73. 发明授权
    • Voice coding-and-transmission system with silent period elimination
    • 语音编码和传输系统,无声期消除
    • US5873058A
    • 1999-02-16
    • US824520
    • 1997-03-26
    • Hisashi YajimaNoriaki KawanoYushi NaitoShigeaki Suzuki
    • Hisashi YajimaNoriaki KawanoYushi NaitoShigeaki Suzuki
    • G10L19/04G10L20060101G10L15/00G10L19/00G10L19/12G10L19/14H03M3/04H03M7/30H04B1/66H04J3/17H04L12/28H04Q3/00G10L3/00
    • G10L19/173
    • In a voice coding-and-transmission system using a differential coding, a degradation of voice quality caused by a silent period transmission network and an ATM network is prevented without improving a silent-period elimination transmission network and existing transmission networks such as a STM network. In a relay node 104, an encoder 114 codes a voice signal from a decoder 108 again for a transient period immediately after a voice is started, and a transmission node 100 and a reception node 102 are tandem-connected. The encoder 114 and a decoder 122 at a reception node 102 are given respectively same reference values of a differential processing by memories 118, 128 when the voice is started, thereby preventing an abnormal sound generation due to a mismatch of inner statuses thereof when the voice is started. During the transient period, the internal statuses of an encoder 106 at a reception node 100 and the decoder 122 are closed each other. After the transient period is elapsed, switching a switch in a silent-period eliminator 112 to a digital-one-link, thereby preventing the degradation of the voice quality caused by quantization errors.
    • 在使用差分编码的语音编码 - 传输系统中,防止由无声期传输网络和ATM网络引起的语音质量的恶化,而不改进无声期消除传输网络和诸如STM网络的现有传输网络 。 在中继节点104中,编码器114在语音开始之后立即再次对来自解码器108的语音信号进行编码,并且发送节点100和接收节点102串联连接。 接收节点102处的编码器114和解码器122在语音开始时由存储器118,128分别给出与差分处理相同的参考值,从而防止当声音的内部状态不匹配时产生异常声音 开始了 在过渡期间,编码器106在接收节点100和解码器122的内部状态彼此关闭。 在经过了暂时期之后,将无声期消除器112中的开关切换到数字一链路,从而防止由量化误差引起的语音质量的劣化。
    • 74. 发明授权
    • Circuit multiple transmission system
    • 电路多传输系统
    • US5493610A
    • 1996-02-20
    • US84531
    • 1993-06-28
    • Shigeaki SuzukiYuhshi NaitoWataru Fushimi
    • Shigeaki SuzukiYuhshi NaitoWataru Fushimi
    • H04M11/00H04J3/16H04M11/06H04N1/00H04N1/333
    • H04N1/33361H04J3/1688H04M11/068H04N1/33323H04N2201/3335H04N2201/33371
    • In a circuit multiplex transmission system for transmitting speech/facsimile signals, a transmission circuit allocation control unit outputs a data transmission rate designation signal according to the load of the transmission circuit. A facsimile procedure operating unit operates a facsimile procedure, by reloading a control signal to be used for controlling the facsimile procedure or by selectively causing a training, which takes place prior to sending a message, to end in failure, in such a manner that a facsimile base band data transmission rate will be a rate designated by a transmission rate designation information. The result is that since the facsimile base band data transmission rate is controlled according to the load of the transmission circuit, it is possible to accommodate the same number of input telephone lines as that if every input signal is a speech signal.
    • 在用于发送语音/传真信号的电路复用传输系统中,传输电路分配控制单元根据传输电路的负载输出数据传输速率指定信号。 传真过程操作单元通过重新加载用于控制传真过程的控制信号或者通过选择性地引起在发送消息之前发生的以失败结束的训练,操作传真过程,方式是 传真基带数据传输速率将是由传输速率指定信息指定的速率。 结果是,由于传真基带数据传输速率根据传输电路的负载进行控制,所以可以容纳与每个输入信号是语音信号相同数量的输入电话线。
    • 75. 发明授权
    • Dampening mask for use in aircraft
    • 用于飞机的防潮面罩
    • US5010594A
    • 1991-04-30
    • US371971
    • 1989-06-27
    • Shigeaki SuzukiHideo Inoue
    • Shigeaki SuzukiHideo Inoue
    • A61M16/10A62B18/02
    • A62B18/025A61M16/1045A61M16/06
    • A dampening mask for use in aircraft, includes a mask body to be worn in a manner in which it is placed in front of the nose of the wearer to cover at least the nose, and forming a small space separated from the outside air in front of the nose; and a ventilation-passage member provided in a portion of the mask body which is, when the mask is worn, situated in front of the nose, the ventilation-passage member interconnecting the small space and the outside air in communication, the ventilation-passage member being a honeycomb structure made of a moisture absorbing material which has a function of absorbing and releasing moisture, the honeycomb structure having a large number of ventilation passages (tubular cavities) directed forward so as to form passages for air.
    • 一种用于飞机的防潮面罩,包括一个面罩主体,该面具主体以穿着者的鼻子前方的方式穿戴,以至少覆盖鼻子,并形成一个与前面的外部空气隔开的小空间 的鼻子 以及通气部件,其设置在所述面罩主体的穿着所述面罩的位置处于所述鼻部前方的部分上,所述通气部件将所述小空间与所述外部空气连通,所述通气通路 构件是由具有吸收和释放水分的功能的吸湿材料制成的蜂窝结构体,蜂窝结构体具有大量通向前方的通风通道(管状空腔),以形成空气通道。
    • 77. 发明授权
    • Process for preparing .alpha., .beta.-unsaturated aldehydes
    • 制备α,β-不饱和醛的方法
    • US4745229A
    • 1988-05-17
    • US15095
    • 1987-02-13
    • Junzo OteraShigeaki SuzukiTakashi OnishiYoshiji Fujita
    • Junzo OteraShigeaki SuzukiTakashi OnishiYoshiji Fujita
    • C07C45/27C07C45/28C07C45/56C07C47/21C07C69/145
    • C07C47/21C07C45/27C07C45/28C07C45/56C07C67/29
    • A process for preparing .alpha.,.beta.-unsaturated aldehydes of the general formula (I) ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are independently a hydrogen atom, or an alkyl or alkenyl group with or without being substituted with a lower acyloxy group. The aldehyde of the general formula (I) is prepared by reaction between an allylic chloride of the following general formula (IIa) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have, respectively, the same meanings as defined above, and an amine oxide selected from the group consisting of tri(lower alkyl)amine N-oxides of the formula,R.sub.3.sup.4 N.sup.+ O.sup.-,in which R.sup.4 represents a lower alkyl group having from 2 to 4 carbon atoms, and N-lower alkylmorpholine N-oxides of the following formula ##STR3## in which R.sup.5 represents a lower alkyl group having from 1 to 4 carbon atoms. Alternatively, the aldehyde of the formula (I) is obtained by reaction between an allylic chloride of the following general formula (IIb) ##STR4## in which R.sup.1, R.sup.2 and R.sup.3 have, respectively, the same meanings as defined above, and an amine oxide selected from the group consisting of tri(lower alkyl)amine N-oxides of the formula,R.sub.3.sup.4 N.sup.+ O.sup.-,in which R.sup.4 has the same meaning as defined above, and N-lower alkylmorpholine N-oxides of the following formula ##STR5## in which R.sup.5 has the same meaning as defined above, in the presence of an alkali metal iodide or a copper halide.
    • 制备通式(I)的α,β-不饱和醛的方法,其中R 1,R 2和R 3独立地为氢原子,或具有或不具有低级烷基或烯基的烷基或烯基 酰氧基。 通式(I)的醛通过以下通式(IIa)的烯丙基氯与其中R 1,R 2和R 3分别具有与上述相同的含义和 选自下列的三(低级烷基)胺N-氧化物的氧化胺,其中R 4表示具有2至4个碳原子的低级烷基的式R 34 N + O-,和N-低级烷基吗啉N- 下式“IMAGE”的氧化物,其中R 5表示具有1至4个碳原子的低级烷基。 或者,式(I)的醛通过以下通式(IIb)的烯丙基氯(IIb)(其中R1,R2和R3分别具有与上述相同的含义) 和选自下式的三(低级烷基)胺N-氧化物的氧化胺,其中R 4具有与上述相同的含义的R 34 N + O-,以及下述的N-低级烷基吗啉N-氧化物 在碱金属碘化物或卤化铜存在下,其中R 5具有与上述相同的含义的式“IMAGE”。