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31. 发明专利

JPS63240240A D-CHANNEL CONTROL CIRCUIT 失效
公开(公告)号：JPS63240240A
公开(公告)日：1988-10-05
申请号：JP7505787
申请日：1987-03-27
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： AMAMIYA SHIGEO , KUWABARA HIDEO , MURANO KAZUO , TSUDA TOSHITAKA , OKUMURA YASUYUKI
IPC分类号： H04M11/00 , H04L13/00 , H04L29/10
摘要： PURPOSE:To correctly execute the detection of collision of D-channel by allowing a D-channel of a bus side being prolonged in a repeater to a D-cannel of a basic bus with a matched timing to take over it, receiving a data at a network terminator and reflecting it to an E-channel to detect collision. CONSTITUTION:A repeater REP uses a latch circuit 13 to latch once a D-channel D2 from a bus 2 and sends the D-channel of the bus side 1 to the bus 1 in the transmission timing as a channel D1. The repeater REP compares the D- channel outputted to the bus 1 with the E channel E1 received from the network terminator and when they are coincident, it is decided to have no collision and the D-channel D2 received from the bus 2 via a selection circuit 12 is reflected onto the E-channel E2. If the result of comparison shows dissidence, since it means the presence of collision in the bus 1, the D-channel D2 is not reflected onto the E-channel E2 of the bus 2, a no D-channel signal X such as an inverse of D-channel signal or a random signal is sent.

32. 发明专利

JPS6322568B2 失效
公开(公告)号：JPS6322568B2
公开(公告)日：1988-05-12
申请号：JP5322184
申请日：1984-03-19
申请人： FUJITSU LTD
发明人： KUWABARA HIDEO , CHIKAMA TERUMI
IPC分类号： G02B6/42 , G02B27/00 , H01L31/0248

33. 发明专利

JPS6378694A STEREOSCOPIC TELEVISION TELEPHONE 失效
公开(公告)号：JPS6378694A
公开(公告)日：1988-04-08
申请号：JP22340486
申请日：1986-09-20
申请人： FUJITSU LTD
发明人： KUWABARA HIDEO
IPC分类号： H04N7/14 , H04N13/00
摘要： PURPOSE:To obtain the eye contact to the other party by image picking-up and transmitting pictures R and L while plane image pickup elements scan parts other than the aperture of a lens in a plane display device. CONSTITUTION:The plane display device 21 alternately displays the received pictures R and L, and a polarizer 22 passes through only light polarized in the a fixed direction among light outputted from the plane display device 21. In synchronization with switching a display screen, a liquid crystal cell 23 outputs the light polarized in the direction as it is or by rotating it by 90 deg.. Consequently the pictures R and L are alternately displayed through lights in different polarization directions. A caller uses polarization glasses which have a polarization lens corresponding to the picture R and a polarization lens corresponding to the picture L. The plane image pickup elements 261 and 262 stop scanning while the plane display device 21 is scanning in the apertures of lenses 251 and 252. While the device 21 is scanning other parts except for the apertures, the elements 261 and 262 operate, decompose the image of the caller which is formed through the lenses 251 and 252 to the pictures R and L, pick up images and transmit them.

34. 发明专利

JPS6344780A SPECTRAL LINE WIDTH ALTERATION DEVICE OF LASER BEAM SOURCE 失效
公开(公告)号：JPS6344780A
公开(公告)日：1988-02-25
申请号：JP18921486
申请日：1986-08-12
申请人： FUJITSU LTD
发明人： SUYAMA MASUO , MASUDA SHIGEFUMI , ONAKA HIROSHI , KUWABARA HIDEO
IPC分类号： H01S5/06 , H01S5/0683 , H01S5/0687 , H01S5/14
摘要： PURPOSE:To facilitate spectral line width control by adjusting or controlling spectral line widths of laser beams through an alteration of fitness of a tuning plate which is installed in an external resonator. CONSTITUTION:A semiconductor laser diode 5 is driven by a laser driving power source 6. A tuning plate 2 is composed so that it can be rotated around a pivot 10 with the aid of PZT 9. Output laser beams of the semiconductor laser diode 5 are branched by a photocoupler 13 and a spectral amplitude of the laser beams is detected by a line width detecting device 15 from beat signals generated by a delay self homodyng system beat signal generating device 14 that receives the branched laser beams. Since a PZT voltage developed depending on the above detecting result returns to PZT 9, its voltage easily controls the spectral line widths of the output laser beams.

35. 发明专利

JPS6333944A MULTI-FRAME SYSTEM 失效
公开(公告)号：JPS6333944A
公开(公告)日：1988-02-13
申请号：JP17826486
申请日：1986-07-29
申请人： FUJITSU LTD
发明人： AMAMIYA SHIGEO , KUWABARA HIDEO , MURANO KAZUO , KOMINE HIROAKI
摘要： PURPOSE:To allow plural terminal equipments to apply two-way communication with a network terminator at the same time by separating a spair bit sent from each terminal equipment into plural number and assigning it to separate terminal equipments. CONSTITUTION:A pattern control means 104 is provided with a network terminal equipment 102, processes multi-framing so that a specific bit N in a sent frame is the repetition of '0' and (n-1) sets of 'ls', sends a reflected bit (m) from the sending of '0' to the i-th frame and sends plural channels of data bits S1, S2-for the remaining (n-i) frames in place of m-bit. Further, a pattern controller 105 is provided with each terminal equipment 103, sends a monitor bit M for the i-th frame from the frame next to the reception of the specific bit N of '0' and sends a data bit corresponding to any of data bits S1, S2-of plural channels in place of the N bit for the remaining (n-i) frames. Thus, the plural terminal equipments 103 make simultaneous two way communication with the network terminator 102.

36. 发明专利

JPS631223A OPTICAL BUS SYSTEM 失效
公开(公告)号：JPS631223A
公开(公告)日：1988-01-06
申请号：JP14432386
申请日：1986-06-20
申请人： FUJITSU LTD
发明人： IGUCHI KAZUO , SOEJIMA TETSUO , AMAMIYA SHIGEO , MURANO KAZUO , KUWABARA HIDEO
IPC分类号： H04B10/29 , H04B10/27 , H04B10/278
摘要： PURPOSE:To greatly increase the branching frequency of optical signals sent from the same optical bus by using plural types of optical couplers having the optimum branch ratios in accordance with the branching frequency for signal branching. CONSTITUTION:A line 102 consists of an optical fiber whose starting end is connected to an optical transmitter or receiver. The optical couplers 1031-103n corresponding to terminals 1041-104n are put into the line 102 to branch this line 102 to said terminals 1041-104n respectively. Thus an optical bus is formed. Here different branching ratios are given to the couplers 1031-103n and these couplers are arranged at and after the optical transmitter or the optical receiver 101 in the order of larger branching ratios. An approximately equal optical level is secured at each terminal input point by optimizing the branching ratio of each optical coupler. Thus the optical power received from the optical transmitter is effectively distributed to each terminal. As a result, the optical level higher than the desired value is not supplied to a terminal set near the optical transmitter unlike a conventional system. Then the branching frequency can be increased.

37. 发明专利

JPS61219239A CLOCK SELECTION CONTROLLING DEVICE FOR NETWORK TERMINATING DEVICE 失效
公开(公告)号：JPS61219239A
公开(公告)日：1986-09-29
申请号：JP5940285
申请日：1985-03-26
申请人： FUJITSU LTD
发明人： AMAMIYA SHIGEO , KUWABARA HIDEO , MURANO KAZUO
IPC分类号： H04L7/00 , H04L7/033
摘要： PURPOSE:To improve the reliability of the selection of the clock selection controlling device of a network terminating device, by discriminating the connecting form between the network terminating device and terminal device and selecting an appropriate retiming clock in accordance with the discriminated form and, if any possibility of mis-discrimination is considered, holding the last discriminated result. CONSTITUTION:A received frame timing signal (c) and the output signal (b) of a monostable multivibrator 22 are compared with each other at an AND circuit 23 and the compared result is outputted as the detecting signal of 'H' or 'L' level corresponding to a connected form by means of a RS flip-flop 24 and D flip-flop 25. Moreover, when the detecting signal (d) of the case where the balanced bit just before the received frame bit is 'H' is outputted, a D flip-flop 27 holds the content of then discriminated detecting signal (h) by means of the detecting signal (d) and gives an output signal (f) corresponding to the content to the data input terminal of the D flip-flop 25 as a signal (g) through an OR circuit 28. Therefore, when the detecting signal (d) is outputted, no distance discrimination is executed and the D flip-flop 25 holds the last outputting condition and, as a result, a stable output is obtained.

38. 发明专利

JPS61138388A Optical ic card 失效
标题翻译：光学IC卡
公开(公告)号：JPS61138388A
公开(公告)日：1986-06-25
申请号：JP25907084
申请日：1984-12-10
申请人： Fujitsu Ltd
发明人： ASAMI TOSHIHIRO , NAKAJO TAKAFUMI , KUWABARA HIDEO , MURANO KAZUO
IPC分类号： G06K19/07 , B42D15/10 , G06K7/10 , G06K19/073 , G07C9/00
CPC分类号： G06K7/1097 , G07C9/00111
摘要： PURPOSE:To stop the action of a built-in circuit when an optical IC card is not used by providing a luminous energy modulator capable of adjusting a voltage detecting circuit and luminous energy by the prescribed time in terms of the optical IC card used by converting optical power into electric power. CONSTITUTION:A luminous source 2a supplies an optical power LP to the photodetecting part 1a of the optical IC card 1 by a white color lamp, etc. The luminous energy modulator 2a1 applies the hourly modulation to the luminous source 2a so that the optical power LP can be supplied during the prescribed period. Now the luminous energy modulator 2a1 is previously adjusted so that the optical electrostatic element 1a1 of the photodetecting part 1a can output a time width tau0, a vibration va-vb and the rectangular pulse voltage V0 of a period T. Inputting the voltage V0, the voltage detecting circuit 1a2 changes said voltage V0 to a voltage V1 at on-off levels of a logical element which is installed in the circuit and has a threshold vs. When a voltage V3 continues during a certain period with a t0 as a reference, a switch SW is turned on, and a microprocessor 1b1 becomes accessible to A RAM and a PROM. The card 1 will not act by a light beam from the sun, etc.
摘要翻译：目的：通过提供能够调节电压检测电路和发光能量的光能调制器，在光学IC卡未被使用时，通过转换使用的光IC卡来停止内置电路的动作。光功率进入电力。构成：发光源2a通过白色灯等将光功率LP提供到光IC卡1的光检测部分1a。发光能量调制器2a1对发光源2a施加小时调制，使得光功率LP 可在规定期限内提供。现在，调节光能调制器2a1，使得受光部分1a的光学静电元件1a1可以输出时间段T的时间宽度τ0，振动va-vb和矩形脉冲电压V0。输入电压V0，电压检测电路1a2将所述电压V0改变为安装在电路中的逻辑元件的开 - 关电平的电压V1，并且具有阈值 - 当电压V3在以t0为参考的一定周期期间持续时，开关SW导通，并且微处理器1b1变得可访问A RAM和PROM。卡1不会受到来自太阳等的光束的作用

39. 发明专利

JPS6184932A Burst mode time division two-way transmitter 失效
标题翻译： BURST模式时间段双路发射机
公开(公告)号：JPS6184932A
公开(公告)日：1986-04-30
申请号：JP20663584
申请日：1984-10-02
申请人： Fujitsu Ltd
发明人： KUWABARA HIDEO
IPC分类号： H04B10/00 , H04B10/2507 , H04B10/556 , H04L5/16
CPC分类号： H04B10/2503
摘要： PURPOSE:To decrease the bit error rate by using a short wavelength for a larger quantity of data transmission when the quantity of data transmission differs largely in a two-way transmitter so as to improve the S/N at the reception of a high bit rate signal. CONSTITUTION:The light converting efficiency given to a photodetector from an optical fiber 2 is improved by selecting a short wavelength for the wavelength of a face lighting type light emitting element 1a of a station having a larger quantity of transmission data in order to avoid a bit error due to noise. Further, the noise at the photodetection side is less in a station having a less quantity of transmission data because the bit rate is low and the band is narrowed. Thus, the wavelength is selected longer to improve a balanced S/Nbetween terminal stations. Even when the converting efficiency is lowered, since noise is less, no bit error is caused. Then the light with a shorter wavelength is used for a terminal station having a larger quantity of data depending on the quantity of the transmission data at the terminal station. The S/N between the terminal stations is improved by using a longer wavelength for a terminal station having a less quantity of data.
摘要翻译：目的：当数据传输量在双向发射机中大幅度变化时，通过使用短波长来减少较大数据传输的误码率，从而提高接收高比特率时的S / N 信号。构成：通过选择具有较大传输数据量的站的面部照明型发光元件1a的波长的短波长来改善从光纤2向光电检测器提供的光转换效率，以避免位噪音造成的误差此外，由于比特率较低并且频带变窄，所以在具有较少传输数据量的站中的光电检测侧的噪声较小。因此，选择更长的波长以改善终端站之间的平衡S / N。即使转换效率降低，由于噪声较小，因此不会产生位错误。然后，具有较短波长的光用于具有较大数据量的终端，取决于终端站的传输数据量。通过对具有较少数据量的终端使用较长波长来改善终端站之间的S / N。

40. 发明专利

JPS6174433A Two-wire bus connection system of terminal equipment and network terminator 失效
标题翻译：终端设备和网络终端机的两线总线连接系统
公开(公告)号：JPS6174433A
公开(公告)日：1986-04-16
申请号：JP19756884
申请日：1984-09-20
申请人： Fujitsu Ltd
发明人： KUWABARA HIDEO , MURANO KAZUO , AMAMIYA SHIGEO
IPC分类号： G06F13/00
摘要： PURPOSE: To take easily frame synchronization of each terminal equipment by comparing the coincidence between a transmission monitor bit and a reception monitor bit at a terminal equipment so as to adjust a delay circuit.
CONSTITUTION: The terminal equipment TE has a random pulse generator FG, a variable delay circuit D, and a phase detection circuit PD. Then plural equipments TE are connected to the network terminator NT via a bus BUS. Then the equipment TE transmits a phase adjusting monitor bit M at the head of frame, the equipment NT identifies the bit M by means of fixed sampling and the content of identification to the equipment TE as an m-bit. The equipment TE receiving it adjusts the circuit D so that the received content in m-bit is made coincident with the transmitted signal in M-bit. In adjusting the delay time in this way, the delay time difference from each equipment TE to the equipment NT is eliminated to take frame synchronization of each equipment TE at the same time.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过比较终端设备的传输监视位和接收监视位之间的一致性来简化每个终端设备的帧同步，以调整延迟电路。构成：终端设备TE具有随机脉冲发生器FG，可变延迟电路D和相位检测电路PD。然后，多个设备TE经由总线BUS连接到网络终端器NT。然后，设备TE在帧头发送相位调整监视器位M，设备NT通过固定采样将标识位M和作为m位的设备TE的识别内容识别。接收到的设备TE调整电路D，使得m位中的接收内容与M位中的发送信号一致。在以这种方式调整延迟时间时，消除了从每个设备TE到设备NT的延迟时间差，以便同时对每个设备TE进行帧同步。

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