公开(公告)号：US5355127A

公开(公告)日：1994-10-11

申请号：US902783

申请日：1992-06-24

申请人： Fumitaka Kan ,  Kenji Nakamura ,  Masanori Takenouchi ,  Naoji Hayakawa ,  Isamu Shimoda ,  Masahiko Okunuki

发明人： Fumitaka Kan ,  Kenji Nakamura ,  Masanori Takenouchi ,  Naoji Hayakawa ,  Isamu Shimoda ,  Masahiko Okunuki

IPC分类号： G11C7/00 ,  G11C11/23 ,  H03K19/14 ,  H04Q1/00

CPC分类号： H03K19/14 ,  G11C11/23 ,  G11C7/005

摘要： In a method and apparatus for transferring information in a form of electron beam, an electron beam detector detects the electron beam, and emission of the electron beam from a predetermined electron beam source is controlled in accordance with a signal from the detector upon detection of the electron beam. In the method and apparatus, a deflection electrode is also used to deflect the electron beams according to an electric or magnetic field to perform charge shifting, logical additions, Logical multiplications, image formation, and the like.

摘要翻译： 在用于以电子束形式传送信息的方法和装置中，电子束检测器检测电子束，并且在检测到电子束时根据来自检测器的信号来控制来自预定电子束源的电子束的发射 电子束。 在该方法和装置中，偏转电极还用于根据电场或磁场偏转电子束，以执行电荷转移，逻辑加法，逻辑乘法，图像形成等。

公开(公告)号：US5309268A

公开(公告)日：1994-05-03

申请号：US123900

申请日：1993-09-20

申请人： Kenji Nakamura ,  Jun Nitta

发明人： Kenji Nakamura ,  Jun Nitta

IPC分类号： H04B10/29 ,  H04B10/00 ,  H04B10/02

CPC分类号： H04B10/29

摘要： In an optical communication system, a transmitted signal is modulated with a subcarrier signal having a frequency higher than the frequency of said transmitted signal on the transmission side, the modulated signal light emitted to a transmission channel. On the reception side, the received signal is filtered and decoded by means of a band-pass filter having a center frequency approximately equal to the frequency of the subcarrier signal of the received signal. The above arrangement makes it possible to achieve an arrangement free from the influence of deterioration in the degree of modulation due to spontaneous emission generated from an optical amplifier disposed midway along the transmission channel. The optical amplifier may be an optical differential gain amplifier which has the differential-gain optical input/output characteristics of outputting spontaneous emission of low intensity according to a digital signal value "0" and output light of high intensity according to a digital signal value "1". The arrangement enables optical amplification of signal light without the risk of outputting high-level spontaneous emission due to direct current excitation. It is therefore possible to provide received signals of high quality by eliminating any deterioration in S/N ratio and any deterioration of the degree of modulation of signal light due to spontaneous emission from the optical amplifier disposed midway along the transmission channel.

摘要翻译： 在光通信系统中，利用在发送侧的频率高于所述发送信号的频率的副载波信号来调制发送信号，发送到发送信道的调制信号光。 在接收侧，接收信号被滤波和借助于具有与接收信号的子载波信号的频率近似的中心频率的带通滤波器进行解码。 上述布置使得可以实现不受由沿着传输通道中途设置的光放大器产生的自发发射的调制程度的劣化的影响的布置。 光放大器可以是光差分增益放大器，其具有根据数字信号值“0”输出低强度的自发发射的差分增益光输入/输出特性，并且根据数字信号值“ 1“。 该装置能够对信号光进行光放大，而不会由于直流激励而输出高电平自发发射的风险。 因此，通过消除S / N比的任何劣化以及由于沿着传输通道设置的中途的光放大器的自发发射而导致的信号光的调制程度的任何劣化，可以提供高质量的接收信号。

公开(公告)号：US5220611A

公开(公告)日：1993-06-15

申请号：US422577

申请日：1989-10-17

申请人： Kenji Nakamura ,  Shigeru Matsuoka

发明人： Kenji Nakamura ,  Shigeru Matsuoka

IPC分类号： G10L11/00 ,  G06F3/16 ,  G06F17/22 ,  G10L13/00 ,  G10L13/02 ,  G10L15/00 ,  G10L21/04

CPC分类号： G10L13/033 ,  G06F3/16 ,  G10L21/04

摘要： A document edition system includes a microphone to input audio information; an analog to digital converter to convert the audio information into digital information; a memory unit to store the digital audio information into an external storage unit as information to be added to document information; a sound pressure display control unit to display the sound pressure information of the digital audio information to a display device; a digital to analog converter to regenerate the digital audio information from the memory unit into speech; and a device to add the audio information to an arbitrary position of the document information. The sound pressure display control unit can display the speech regenerating position from the digital to analog converter onto a sound pressure display waveform and also includes a device for displaying the sound pressure information by a predetermined pattern width or a tone. There is also provided a device for adding information denomination to the audio information and for storing the resultant audio information into the external storage unit; a device for reading out the audio information from the external storage unit by the information denominations added thereto upon reproduction; and a device for coupling and editing the plurality of readout audio information by their information denominations.

摘要翻译： 文件编辑系统包括用于输入音频信息的麦克风; 将音频信息转换为数字信息的模数转换器; 存储单元，用于将数字音频信息存储到外部存储单元中作为要添加到文档信息的信息; 声压显示控制单元，用于将数字音频信息的声压信息显示到显示装置; 数字到模拟转换器，用于将数字音频信息从存储器单元再生成语音; 以及将音频信息添加到文档信息的任意位置的设备。 声压显示控制单元可以将数字到模拟转换器的语音再现位置显示在声压显示波形上，并且还包括用于以预定的图案宽度或音调显示声压信息的装置。 还提供了一种用于将信息面额添加到音频信息并用于将所得到的音频信息存储到外部存储单元中的装置; 用于通过再现时添加的信息面值从外部存储单元读出音频信息的装置; 以及用于通过其信息面值来耦合和编辑多个读出的音频信息的装置。

公开(公告)号：US5159633A

公开(公告)日：1992-10-27

申请号：US641879

申请日：1991-01-15

申请人： Kenji Nakamura

发明人： Kenji Nakamura

IPC分类号： G09C1/00 ,  G06F21/10 ,  H04L9/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/16 ,  H04N7/167

CPC分类号： H04L9/088 ,  H04L9/12 ,  H04L9/3247 ,  H04N7/1675 ,  H04L2209/56 ,  H04L2209/60

摘要： There is disclosed a multimedia network system for transmitting real-time communication type information such as a television video signal and storage type information such as a computer file using at least one transmission path. The real-time communication type information is encrypted by a secret-key system, and the storage type information is encrypted by a public-key system. A common encryption key of the public-key system is changed in each communication. High-speed information can be safely encrypted and transmitted.

公开(公告)号：US5144466A

公开(公告)日：1992-09-01

申请号：US415764

申请日：1989-10-02

申请人： Kenji Nakamura ,  Masao Majima ,  Noboru Yamamoto

发明人： Kenji Nakamura ,  Masao Majima ,  Noboru Yamamoto

IPC分类号： H04J14/02

CPC分类号： H04J14/028 ,  H04J14/0226 ,  H04J14/0245 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

摘要： The present invention discloses an optical fiber communication system for an optical network in which a plurality of types of communication terminal equipments are connected to one another via optical fibers, the optical fiber communication system being consisting of the steps: conducting wavelength multiplexing using at least three wavelengths, allotting a first optical wavelength to a packet switched communication of a distribution control system, allotting a second optical wavelength to a line switched communication of a time division multiplexing system, allotting the residual optical wavelength to a line switched communication by an optical wavelength allotment system, and conducting a control of the line switched communication of the time division multiplexing system using the second optical wavelength and the line switched communication by the optical wavelength allotment using the residual optical wavelength, this control being conducted by using the packet switched communication using the first optical wavelength.The present invention further discloses an optical network having an optical network control unit to which the optical fiber communication system is applied, an optical network having no optical network control unit, a terminal equipment forming the optical network, and an optical network control unit.

公开(公告)号：US5115357A

公开(公告)日：1992-05-19

申请号：US715889

申请日：1991-06-18

申请人： Kenji Nakamura

发明人： Kenji Nakamura

IPC分类号： H04N5/7826 ,  G11B5/012 ,  G11B19/02 ,  G11B19/04 ,  G11B20/02 ,  H04N1/21 ,  H04N5/76

CPC分类号： H04N1/2129 ,  G11B19/02 ,  G11B19/04 ,  G11B5/012 ,  H04N1/2112 ,  H04N5/7605 ,  H04N2101/00 ,  Y10S358/906

摘要： A magnetic recording device capable of executing frame recording with use of a pair of adjacent magnetic heads has a signal detection circuit for determining whether a given track is unrecorded based on signal reproduced by the magnetic head, a head feeding mechanism, a controller for controlling the head feeding mechanism, the controller allowing the magnetic head to move until two adjacent unrecorded tracks are detected in the frame recording mode.

摘要翻译： 能够使用一对相邻磁头执行帧记录的磁记录装置具有信号检测电路，用于基于由磁头再现的信号来确定给定磁道是否未被记录，磁头馈送机构，用于控制磁头的控制器 头进给机构，控制器允许磁头移动，直到在帧记录模式中检测到两个相邻的未记录的轨道。

公开(公告)号：US4995505A

公开(公告)日：1991-02-26

申请号：US260449

申请日：1988-10-20

申请人： Yoshio Takahashi ,  Mitsuo Sudo ,  Takamasa Arikawa ,  Kenji Nakamura ,  Izumi Sato ,  Katsuyuki Onogi ,  Takao Iura ,  Nobuji Ishida

发明人： Yoshio Takahashi ,  Mitsuo Sudo ,  Takamasa Arikawa ,  Kenji Nakamura ,  Izumi Sato ,  Katsuyuki Onogi ,  Takao Iura ,  Nobuji Ishida

IPC分类号： B21D43/05

CPC分类号： B21D43/052 ,  B21D43/05 ,  B21D43/055

摘要： A trolley is reciprocably moved along a guide and work supported by the trolley is vertically moved by a lift mechanism and the lift mechanism is made compact in size, light in weight and highly reliable in operation, whereby the processing speed of a processing line can be increased and therefore productivity can be improved.

公开(公告)号：US4882715A

公开(公告)日：1989-11-21

申请号：US167254

申请日：1988-03-11

申请人： Koichi Egara ,  Norihiro Mochizuki ,  Kenji Nakamura ,  Kazuo Yoshinaga

发明人： Koichi Egara ,  Norihiro Mochizuki ,  Kenji Nakamura ,  Kazuo Yoshinaga

IPC分类号： G06G7/195

CPC分类号： G06G7/195

摘要： In a surface acoustic wave elastic convolver capable of showing sufficiently high convolution efficiency with a simple structure, the convolver comprises a piezo-electric substrate, plural input transducers formed on the substrate for respectively generating surface acoustic waves corresponding to input signals, an output transducer for obtaining a convolution signal of the input signals, from a surface acoustic wave generated by non-linear interaction, of the surface acoustic waves generated by those input transducers, and a dielectric film of a non-linear effect larger than that of the substrate, formed on the substrate in at least an area where the output transducer is formed.

公开(公告)号：US4858062A

公开(公告)日：1989-08-15

申请号：US183517

申请日：1988-04-14

申请人： Naoji Hayakawa ,  Masanori Takenouchi ,  Kenji Nakamura ,  Fumitaka Kan ,  Yasuo Kozato ,  Isao Hakamada

发明人： Naoji Hayakawa ,  Masanori Takenouchi ,  Kenji Nakamura ,  Fumitaka Kan ,  Yasuo Kozato ,  Isao Hakamada

IPC分类号： G03G15/32 ,  H01J1/308

CPC分类号： G03G15/323 ,  H01J1/308

摘要： A charging device for forming a latent image of high precision includes plural electron beams generated by plural solid state beam sources, which are independently controlled by plural accelerating electrodes by independently variable voltages.

摘要翻译： 用于形成高精度的潜像的充电装置包括由多个固态光束源产生的多个电子束，它们通过独立的可变电压独立地由多个加速电极控制。

公开(公告)号：US4798987A

公开(公告)日：1989-01-17

申请号：US87410

申请日：1987-08-20

申请人： Kenji Nakamura

发明人： Kenji Nakamura

IPC分类号： H03H9/02 ,  H01L41/08

CPC分类号： H03H9/02968

摘要： A surface acoustic wave generator includes a transducer array of a plurality of surface acoustic wave transducers having different center frequencies from each other, and a variable frequency oscillator for supplying an HF signal to drive the transducer array. A distributor distributes the HF signal supplied from the oscillator to each of the transducers of the transducer array, and a device provided between each of the transducers and the distributor prevents the HF signals reflected by the transducers from returning to the distributor.

摘要翻译： 表面声波发生器包括具有彼此不同的中心频率的多个表面声波换能器的换能器阵列，以及用于提供HF信号以驱动换能器阵列的可变频率振荡器。 分配器将从振荡器提供的HF信号分配给换能器阵列的每个换能器，并且设置在每个换能器和分配器之间的装置防止换能器反射的HF信号返回到分配器。