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1. 发明专利

JPS55109043A CALL PILING SYSTEM FOR OPTICAL DATA TRANSMISSION 失效
公开(公告)号：JPS55109043A
公开(公告)日：1980-08-21
申请号：JP1533779
申请日：1979-02-13
申请人： FUJITSU LTD
发明人： ATSUYA KINICHI , HIGETA TSUKUMO , KAKEHI HAJIME , YAMADA YUUSAKU , WATANABE YOSHIHIDE
IPC分类号： H04B10/00 , H04B10/556 , H04M11/06
摘要： PURPOSE:To obtain the digital signals by supplying both the data signal waveform and the call signal waveform to the modulator in the alternate switching and then giving the sampling with the frequency which is higher enough than the data signal frequency, thus amplifying the system constitution. CONSTITUTION:The data signal sent from data transmitter 1 is D/A-converted through modulator 21. And the call signal from telephone transmitter 11 is supplied directly to switch unit 22 since it is the analog signal. The both signals are switched in the time-division way through unit 22, and both the data signal and the call signal are sampled together at DELTAM modulator 23 and with the frequency which is higher enough than the frequency of the data signal. And one pulse of the data signal is converted into the digital signal of plural bits and then into the optical signal through photoelectric converter 2 to be converted again into the electric signal through photoelectric converter E2'. After this, the electric signal is converted into the analog signal through DELTAM demodulator 23' to be divided into the data signal and the call signal each through switch unit 22' to be sent to data receiver 1' and telephone receiver 11' directly each.

2. 发明专利

JPS56166616A FILTER SWITCHING CIRCUIT 失效
公开(公告)号：JPS56166616A
公开(公告)日：1981-12-21
申请号：JP7098380
申请日：1980-05-28
申请人： FUJITSU LTD
发明人： TAKEDA KIYOSHI , NONAKA KENJI , YAMADA YUUSAKU
IPC分类号： H03G5/02 , H03H11/04 , H03H11/12
摘要： PURPOSE:To decrease the number of parts by varying the resistance value of one optional resistance among series resistances, constituting a filter by short-circuiting it by an analog switch. CONSTITUTION:When a control voltage at a control input terminal 3 is held at a high or low level, analog switches S1, S3, S5, and S7 turn off or on and when a control voltage at a control input terminal 4 is held at a high or low level, analog switches S2, S4, S6, and S8 turn off or on. For this purpose, the control voltages applied to the control input terminals 3 and 4 are controlled to vary resisstance values, thereby varying characteristics of a filter.

3. 发明专利

JPS56117446A DATA TRANSMITTING SYSTEM 失效
公开(公告)号：JPS56117446A
公开(公告)日：1981-09-14
申请号：JP2143480
申请日：1980-02-22
申请人： FUJITSU LTD
发明人： YAMADA YUUSAKU , NONAKA KENJI , TAKEDA KIYOSHI , SHIRAI HIROAKI
IPC分类号： H04B1/04 , H04B10/00 , H04B10/07 , H04B10/556 , H04L29/00
摘要： PURPOSE:To reduce the power consumption and thus eliminate a replacement of the batteries for a long time, by carrying out a transmission of data when the input data changes and giving a data transmission with a fixed time interval when the input data has no change respectively. CONSTITUTION:The pulley 4 is turned according to the change of water level, and this turning motion is converted into a digital data through the A-D converter 5 to be converted into a pulse series by the parallel-serial converting circuit 6. This pulse series is converted into the optical signals by the light emitting element 7 to be transmitted via the optical fiber cable 8. The BUSY signal 12 at the moment when the input data changes is detected by the fall detecting circuit 13, and then the power supply switch 14 is closed to perform a transmission of data. The switch 14 is closed by the automatic starting circuit 15 and with every second T1 for a transmission of data. This transmission of data is monitored by the information renewal check timer 16 at the reception part, and an external alarm is delivered in case the data is not renewed within the T2 second.

4. 发明专利

JPS5531309A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS5531309A
公开(公告)日：1980-03-05
申请号：JP10395178
申请日：1978-08-28
申请人： FUJITSU LTD
发明人： SUMI KAZUTOMI , YAMADA YUUSAKU
IPC分类号： G06F13/14 , H04L12/40
摘要： PURPOSE:To eliminate the effect of the noise and the diconection with a reduced number of the control signal lines and by combining the selection transmission lines forming a matrix when the data is transmitted between the central processor and several units of the data input/output units which are dotted on the common bus transmission line. CONSTITUTION:One of input/output units 14a 14i is selected via gate control signal transmission line 15 formed with digital output interface devices 12a and 12b. And then, for example, unit 14a is selected via lines (a) of devices 12a and 12b. The selected input/output unit performs the data transfer to processor 10 via common bus transmission line plus interface devices 11a and 11b. As the gate control signal transmission line features the matrix structure, the occurrence can be reduced for both malfunction and disconnection.

5. 发明专利

JPS5486363A STATE CHANGE DETECTING CIRCUIT 失效
公开(公告)号：JPS5486363A
公开(公告)日：1979-07-09
申请号：JP15352477
申请日：1977-12-22
申请人： FUJITSU LTD
发明人： TAKIZAWA HIROSHI , YAMADA YUUSAKU
IPC分类号： G08B25/00 , G05B23/02 , G08B1/08 , G08B23/00 , G08C25/00 , H04Q9/00
摘要： PURPOSE:To obtain a circuit of a small size, low cost and yet good packaging efficiency by providing an assembly of exclusive-OR gates which convert plural external data to one state change information, differentiating the output thereof and setting which state change has occured in an FF circuit. CONSTITUTION:External data with each two pieces as one set are inputted to the exclusive-OR gate groups EOR11, EOR12... of the first stage and the outputs of the gates EOR11, EOR12... with each 2 pieces as 1 set are inputted to the exclusive-OR gate groups EOR21, EOR22... of the second stage. Finally the outputs of the gates EOR31 and EOR32 are inputted to the gate EOR41, whose output is then applied to the differentiation circuit C consisting of an inverter INV, capacitor Ca, resistance R and OR gate. The output of said differentiation circuit C is applied to an FF circuit D. Thereby, the detection circuit which is capable of detecting the contents of the state change of external data, is small and inexpensive and yet is of good packaging efficiency may be obtained.

6. 发明专利

JPS60102077A STILL PICTURE TRANSMISSION SYSTEM 失效
公开(公告)号：JPS60102077A
公开(公告)日：1985-06-06
申请号：JP20945383
申请日：1983-11-08
申请人： FUJITSU LTD
发明人： YONEMOTO EIJI , YAMADA YUUSAKU
IPC分类号： H04N7/18
摘要： PURPOSE:To control freely a camera while observing a monitor by reducing or making coarse the range of a picture read from a memory during the camera control from the reception side as well as to decrease the transmission time per one pattern. CONSTITUTION:In the conventional still picture transmitting using a WAD counter 47 generating a write address and an RAD counter 48L generating a read address, a picture picked up by a camera is written in a memory 41 in the rate of one pattern at some patterns and it is read at a low speed in matching with the transmission speed of a line 1. Since the time required for the read needs nearly 30sec per one pattern with a transmission speed of 9,600BPS, the transmission time is decreased by limiting a read range 41' from the memory 41. For example, in reduction the longitudinal and lateral size of the range 41' to 1/8, the read time is 30/64, and reduced nearly to 0.5sec.

7. 发明专利

JPS59105732A Intermittent transmission system 失效
标题翻译：间歇传输系统
公开(公告)号：JPS59105732A
公开(公告)日：1984-06-19
申请号：JP21644482
申请日：1982-12-10
申请人： Fujitsu Ltd
发明人： YAMADA YUUSAKU , NOZAWA KUNIO
IPC分类号： H04B1/66 , H04B14/04
CPC分类号： H04B14/046
摘要： PURPOSE:To reduce the overall average power consumption of a device by monitoring the signal level of an input part to delay the working cycles of A/D conversion and transmission compared with the normal cycle when no signal exists or the signal level is less than a certain value and to stop the supply of power supply voltage to the A/D converter and a light emitting diode when they have no working. CONSTITUTION:The threshold value + or -V1 is set at a comparator 16. That is, the data is sampled and transmitted in a cycle of time t1 when a comparator 16 decides that the level of an input signal is larger than V1. However, if the input signal is discriminated to be less than + or -V1, the comparator 16 gives information to a control part 18 and changes the sampling and transmitting cycles to t2 (t1
摘要翻译：目的：通过监视输入部分的信号电平来降低器件的总体平均功耗，从而延长A / D转换和传输的工作周期，与正常周期相比，当没有信号存在或者信号电平小于当A / D转换器和发光二极管不工作时，停止供给电源电压。构成：在比较器16中设定阈值+或-V1。即，当比较器16判定输入信号的电平大于V1时，以时间t1的周期对数据进行采样和发送。然而，如果输入信号被鉴别为小于+或-V1，则比较器16向控制部分18提供信息，并将采样和发送周期改变为t2（t1

8. 发明专利

JPS5769495A Data acqusition system 失效
标题翻译：数据处理系统
公开(公告)号：JPS5769495A
公开(公告)日：1982-04-28
申请号：JP14544680
申请日：1980-10-17
申请人： Fujitsu Ltd
发明人： ITOU AKIRA , TAKIZAWA HIROSHI , YAMADA YUUSAKU
IPC分类号： H04Q9/00 , G06F17/40 , G08C15/00 , G08C19/00

9. 发明专利

JPS5687935A COUNTING CIRCUIT 失效
公开(公告)号：JPS5687935A
公开(公告)日：1981-07-17
申请号：JP16467679
申请日：1979-12-20
申请人： FUJITSU LTD
发明人： KAWASHIMA RIYUUTAROU , KAYA KATSUHIKO , YAMADA YUUSAKU
IPC分类号： H03K21/00 , H03K21/40 , H03K27/00
摘要： PURPOSE:To form the counter circuit combinedly having the advantages of electronic and mechanical counting circuits, by controlling the switching gate in cooperation with the addition circuit accumulating and adding the addition input to be counted and the input to be added, with the signal adding the integration operation for the data of the input to be added and the addition input. CONSTITUTION:When the addition input pulse Pin to be counted is fed, the 2nd input side for a switching gate 41 is closed and the 1st input side is opened. In this case, since the capacitor C1 inputs a part of the counting output data Dout, the value is equal to this data Dout, and to the value of this capacitor C2 up to now. The addition circuit 31 receives the accumulated addition data up to now stored in the capacitor C1 at the terminal 32 to perform the addition of Dout + Pin. The new result of addition is stored in the capacitor C2. On the other hand, while the 2nd input side of the switching gate 41 is still closed, new count output data is not received. Further, after the pulse Pin is intermittent, the 2nd input side is opened and the counting output data is rewritten into new data Dout. Further, the new data is stored in the capacitor C1 via the resistance R1.

10. 发明专利

JPS55162642A SUPERIMPOSING SYSTEM FOR CALL SIGNAL 失效
公开(公告)号：JPS55162642A
公开(公告)日：1980-12-18
申请号：JP7097379
申请日：1979-06-06
申请人： FUJITSU LTD
发明人： ATSUYA KINICHI , HIGETA TSUKUMO , KAKEHI HAJIME , YAMADA YUUSAKU , KUDOU YUKIO
IPC分类号： H04B10/00 , H04B10/524 , H04J14/00 , H04J14/04 , H04J14/06
摘要： PURPOSE:To perform the multiplex transmission of signal, by sampling the waveform of digital data and analog call signal in time sharing manner for the same PCM modulation. CONSTITUTION:The digital data from a data transmitter 41 and the call signal from a telophone set 42 are sampled at a switching unit 43 in time sharing manner, and PCM modulation is made at a PCM modulator 44. This is in photo conversion at an electro-optic converter 45 and transmitted into an optical fiber 46. At the reception side, the received photo signal is converted into an electric signal and it is demodulated at a PCM demodulator 48, and a switching unit 49 distributes the data into digital data and call signal to the digital reception unit 51 and the telephone set 50 at the switching unit 49. Thus, telophone signal can be transmitted asynchronizingly in superposition on the digital data.

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