公开(公告)号：US5353125A

公开(公告)日：1994-10-04

申请号：US13017

申请日：1993-02-02

申请人： Michihiro Nakagawa ,  Kazuo Izumi ,  Hirohiko Yamazaki ,  Kunio Shijo

发明人： Michihiro Nakagawa ,  Kazuo Izumi ,  Hirohiko Yamazaki ,  Kunio Shijo

IPC分类号： H04L1/08 ,  H04L29/08 ,  H04N1/32 ,  H04N1/333 ,  H04N1/00

CPC分类号： H04N1/32791 ,  H04N1/32619 ,  H04N1/3333

摘要： A facsimile apparatus in a first station with an error correction mode retransmits signal again in response to a request from a section station. The facsimile apparatus includes a CPU to control a transmission speed of the signal transmission circuit so as to transmit operation control signals such as page information signals relating to a document and post message command signals indicating an operation that is to follow a present operation, at a first transmitting speed that corresponds to a transmission speed used to transmit image signals.

摘要翻译： 具有纠错模式的第一站中的传真装置响应于来自区段站的请求再次发送信号。 传真装置包括：CPU，用于控制信号传输电路的传输速度，以便发送诸如与文档相关的页面信息信号的操作控制信号和指示将遵循当前操作的操作的发布消息命令信号， 对应于用于传输图像信号的传输速度的第一传输速度。

公开(公告)号：US4493842A

公开(公告)日：1985-01-15

申请号：US494349

申请日：1983-05-13

申请人： Kunihiko Furuzawa ,  Yuji Funaki ,  Yoshio Hisada ,  Kazuo Izumi

发明人： Kunihiko Furuzawa ,  Yuji Funaki ,  Yoshio Hisada ,  Kazuo Izumi

IPC分类号： A01N43/50 ,  C07D233/60 ,  C07D521/00 ,  C07D233/58

CPC分类号： C07D231/12 ,  A01N43/50 ,  C07D233/56 ,  C07D249/08

摘要： N-acylimidazole compounds represented by the formula: ##STR1## wherein X is halogen atom, or alkyl, alkoxy, lower alkylthio, halogen-substituted alkyl, phenyl, phenoxy, cyano, phenyl lower alkoxy or nitro group, R.sub.1 and R.sub.2, which may be the same or different, are hydrogen or halogen atom, or alkyl, lower alkenyl, lower alkoxy, trifluoromethyl, lower cycloalkyl lower alkyl or lower alkoxy lower alkyl group, or R.sub.1 and R.sub.2, taken together, may form lower alkylene or halogen-substituted lower alkylene group, m is 0 or 1, n is 0, 1 or 2, and when n is 2, (X).sub.2 groups may form methylenedioxy group, which compounds are useful for controlling plant-disease, regulating plant growth and controlling weeds.

摘要翻译： 由下式表示的N-酰基咪唑化合物：其中X为卤素原子，或烷基，烷氧基，低级烷硫基，卤素取代的烷基，苯基，苯氧基，氰基，苯基低级烷氧基或硝基，R1和R2， 氢或卤原子，或烷基，低级烯基，低级烷氧基，三氟甲基，低级环烷基低级烷基或低级烷氧基低级烷基，或者R 1和R 2一起可以形成低级亚烷基或卤素取代的 低级亚烷基，m为0或1，n为0,1或2，当n为2时，（X）2基团可形成亚甲二氧基，该化合物可用于控制植物病害，调节植物生长和控制杂草 。

公开(公告)号：US4051332A

公开(公告)日：1977-09-27

申请号：US661381

申请日：1976-02-25

申请人： Kazuo Izumi ,  Kazuto Izumi

发明人： Kazuo Izumi ,  Kazuto Izumi

IPC分类号： H04B3/20

CPC分类号： H04B3/20

摘要： The invention discloses a multiplex digital echo suppression system in which on each of the transmitting and receiving sides the PCM signal for each channel is converted into the parallel signal and also into the absolute value signal representing the absolute value of the PCM signal by eliminating the sign bit; thus converted signals are accumulated for a predetermined time in a transmitting-side and receiving side accumulators and then compared in a comparator so that the output is derived from the comparator when the accumulated signal in the transmitting-side accumulator is higher in level than the signal accumulated in the receiving-side accumulator; in response to the output signal from the comparator, a first timer is set to a first predetermined time during which the signal is derived from the first timer; when the signal level in the receiving-side accumulator is higher than a predetermined level of a threshold level comparator, the output is derived therefrom and applied to a second timer which in turn is set to a second predetermined time shorter than the time of the first timer, the output signal being derived from the second timer during said second predetermined time. The output from the first timer is applied to a receiving-side logic circuit which in turn controls an attenuator while the outputs from the first and second timers are applied to a transmitting-side logic circuit which controls an echo switch by the logical combination of said output signals.

公开(公告)号：US4004140A

公开(公告)日：1977-01-18

申请号：US507812

申请日：1974-09-20

申请人： Kazuto Izumi ,  Kazuo Izumi

发明人： Kazuto Izumi ,  Kazuo Izumi

IPC分类号： H04B3/20 ,  H03G3/00 ,  H03G3/20 ,  H03H11/24 ,  H03H17/00 ,  G06F7/39

CPC分类号： H03G3/002 ,  H03H17/0054

摘要： A digital attenuator is disclosed which is capable of having the output PCM signal attenuated nearly in proportion to the input PCM signal level based upon simple logic operations ofP.sub.out = .alpha. P.sub.in + NwhereP.sub.out = output PCM signalP.sub.in = input PCM signal processed by a compressor.alpha. = a real number satisfying the condition 0 0, to obtain the sum .alpha.P.sub.in + N, the output signal .alpha.P.sub.in, which is obtained in the manner described above, is added to a specific pattern representing N which is generated by a specific pattern generating circuit. The above sum is compared with P.sub.in and when the former is larger than or equal to the latter, P.sub.in becomes P.sub.out, while when the former is less than the latter, the sum is derived as P.sub.out. Thus, an attenuation nearly proportional to the input PCM signal level may be attained.

摘要翻译： 公开了一种数字衰减器，其能够基于Pout = alpha Pin + N的简单逻辑运算使输出PCM信号几乎与输入PCM信号电平成正比衰减，其中Pout =输出PCM信号Pin =输入PCM信号 压缩器α=满足条件0 <α<1的实数，N =大于或等于0的实数。