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21. 发明专利

JPS5546612A OSCILLATION CIRCUIT USING COMPLEMENTARY TYPE METAL OXIDE FILM SEMICONDUCTOR INTEGRATED CIRCUIT 失效
公开(公告)号：JPS5546612A
公开(公告)日：1980-04-01
申请号：JP11915778
申请日：1978-09-29
申请人： FUJITSU LTD
发明人： NAKASHIMA TOSHIO , MORITA TOSHIYUKI , YABE TOSHIHIRO
IPC分类号： H03B5/06 , H03B5/32 , H03B5/36
摘要： PURPOSE:To stabilize the oscillation operation of an oscillator using a CMOS integrated circuit, by using CMOS as a NAND gate. CONSTITUTION:Of a NAND gate with several inputs, CMOS gate 11 is composed and one of inputs is reset signal input C; an oscillation circuit consists of crystal oscillator 2, resistances 3, 4 and 5, and capacitors 6 and 7. When the oscillator of the above-mentioned constitution is applied with reset signal S with a rise in voltage stabilized after power feeding time, stable oscillation operation can be attained without equalizing input voltage Vi to output voltage Vo. Therefore, applying reset signal S in a state of Vi=Vo sets Vi and Vo unequal when the rise in voltage is stabilized and oscillation starts subsequently at the oscillation frequency of a crystal. In this way, a stable oscillation state cah be obtained.

22. 发明专利

JPS549385A MONITORING CONTROL SYSTEM 失效
公开(公告)号：JPS549385A
公开(公告)日：1979-01-24
申请号：JP7421177
申请日：1977-06-22
申请人： FUJITSU LTD
发明人： MORITA TOSHIYUKI , NAKASHIMA TOSHIO
IPC分类号： H04Q9/00
摘要： PURPOSE:To prevent the generation of non-monitoring state when an accident is generated in transmission line in a cyclic polling type monitoring control system using one transmission line, by means of polling mutually from the monitoring offices of both terminals.

23. 发明专利

JP2000031707A TERMINATOR AND TRANSMISSION SYSTEM 失效
公开(公告)号：JP2000031707A
公开(公告)日：2000-01-28
申请号：JP20083298
申请日：1998-07-15
申请人： FUJITSU LTD
发明人： MORITA TOSHIYUKI , YOSHIDA YUTAKA , SAKAI JUNYA , AZUMA AKIRA
IPC分类号： H04N7/10 , H01P1/24 , H01P1/26 , H04N7/16 , H04N21/647
摘要： PROBLEM TO BE SOLVED: To make the terminator applicable to an existing transmission system and to maintain an excellent transmission characteristic with high accuracy at a low cost with respect to the terminator that terminates a transmission line used for transmission of a main signal and an AC signal superimposed on the main signal and formed via a plug and the transmission system provided with the transmission line and the terminator. SOLUTION: The terminator terminating a transmission line 12 that is formed as lines connected via a plug 11 and is used for transmission of a main signal modulated by transmission information and an AC signal superimposed on the main signal to provide power at the outside of the occupied band of the main signal, is provided with a bypass circuit 14 that applies a voltage in excess of a maximum rating of a nonlinear element 13 formed to a plug section of the plug 11 in response to the AC signal to the nonlinear element 13 or injects a current in excess of a maximum current rating and has an impedance with an allowable deviation of impedance matching with the transmission line 12 with respect to the main signal.

24. 发明专利

JPS6096049A FAULT LOCATING SYSTEM 失效
公开(公告)号：JPS6096049A
公开(公告)日：1985-05-29
申请号：JP20401583
申请日：1983-10-31
申请人： FUJITSU LTD
发明人： MORITA TOSHIYUKI
IPC分类号： H04L25/02 , H04B17/40 , H04L27/00
摘要： PURPOSE:To attain ease of fault location by disconnecting transmission of a main signal when a digital radio line is disconnected, transmitting only a pseudo random signal from a transmission section and allowing a relay station to compare the detected pseudo random signals mutually to discriminate faulty section. CONSTITUTION:In applying 0 to a terminal 30, a data signal and a pseudo random signal PNo transmitted from terminals 3, 4 of a speed converter 1 to terminals 22, 23 are blocked at AND circuits 31, 32 and 33 and two pseudo random signals PNt only shifted by n-bit each is outputted externally from output terminals 22, 23. A pseudo random signal supplied to a terminal 43 among pseudo random signals of two channels supplied to input terminals 42 and 43 is subject to n-bit delay at a delay circuit 2 and made in phase to the pseudo random signal supplied to the terminal 42. The two pseudo random signals are fed to an EX-OR circuit 44, its output is fed to a time counting circuit 45 so as to discriminate the presence of fault.

25. 发明专利

JPS6096036A AUXILIARY SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6096036A
公开(公告)日：1985-05-29
申请号：JP20401783
申请日：1983-10-31
申请人： FUJITSU LTD
发明人： MORITA TOSHIYUKI
IPC分类号： H04B1/68 , H04B1/76 , H04B7/005 , H04B17/00 , H04B17/309
摘要： PURPOSE:To obtain a microwave single side band auxiliary signal transmission system not requiring an exclusive band by transmitting an amplitude equalization pilot signal inserted to a transmission signal while being applied with angular modulation with an auxiliary signal comprising an ordering signal, a supervising control signal and a line switching control signal or the like. CONSTITUTION:Main signals from a carrier terminal station (not shown) fed to terminals 50, 51, e.g., SIG-1 and SIG-2 are modulated by an output wave of a pilot signal oscillator 3 and after they are increased to an intermediate frequency band, the result is fed to a hybrid circuit 12. On the other hand, an amplitude equalization pilot signal from pilot signal oscillators 6, 8, 10 is frequency- modulated shallowly at frequency modulators 7, 9, 11 by using an ordering signal inputted to terminals 52, 53, 54, a supervising control signal and a switching control signal. Then the signal is synthesized with the main signals SIG-1 and SIG-2. A microwave single side band signal inputted to a terminal 55 of the receiver is amplified/frequency-converted at a reception section 20 and then fed to an amplitude equalizer 21.

26. 发明专利

JPS58194442A Fault detecting system 失效
标题翻译：故障检测系统
公开(公告)号：JPS58194442A
公开(公告)日：1983-11-12
申请号：JP7532782
申请日：1982-05-07
申请人： Fujitsu Ltd
发明人： MORITA TOSHIYUKI , ITOU HIDEAKI
IPC分类号： H04L1/00 , H04B17/40 , H04L1/02 , H04L25/02
CPC分类号： H04L1/02
摘要： PURPOSE:To enable an end office to detect the faulty area of a communication circuit, by storing the received data at each switching office, sending the stored data to the end office with a command given from the end office and comparing the stored data with the data received with a normal route at the end office. CONSTITUTION:An input signal RI is received 12 at a switching office and then demodulated to extract the data and clock signal. This clock signal is modulated by a transmitter 13 and then transmitted as a transmission output signal RO. A storing circuit 14 stores the demodulated data, and a control signal receiving circuit 16 receives the control signal sent from an end office in the opposite direction to apply the control signal to the circuit 14 and a reading/transmitting circuit 15. The end office feeds the data and the clock signal supplied from a receiver 19 to a code error detecting circuit 20, actuates a controlling/transmitting circuit 21 after detecting an error and transmits a control signal to each end office via a transmitter 22. The switching office transmits the stored data to the end office when receiving a control signal containing the number of its own station. While the end office stores 23 the transmitted data for each switching office and compares 25 this data with the data stored 24 previously to discriminate the faulty area.
摘要翻译：目的：为了使终端能够检测到通信电路的故障区域，通过在每个交换局存储接收到的数据，将终端办公室的存储数据发送到终端局，并将存储的数据与在终端办公室用正常路由接收的数据。构成：在交换局接收输入信号RI，然后解调以提取数据和时钟信号。该时钟信号由发射机13调制，然后作为发送输出信号RO发送。存储电路14存储解调数据，并且控制信号接收电路16从相对方向接收从终端局发送的控制信号，以将控制信号施加到电路14和读/发电路15.末端局馈送从接收器19提供给代码错误检测电路20的数据和时钟信号在检测到错误后致动控制/发送电路21，并且经由发送器22将控制信号发送到每个终端局。交换局将存储的当接收到包含其本站号码的控制信号时，向终端机发送数据。终端办公室存储23个用于每个交换局的发送数据，并将该数据与之前存储的数据25进行比较，以区分故障区域。

27. 发明专利

JPS56149111A ELASTIC SURFACE WAVE DEVICE 失效
公开(公告)号：JPS56149111A
公开(公告)日：1981-11-18
申请号：JP5227380
申请日：1980-04-22
申请人： FUJITSU LTD
发明人： TODA YOSHIFUMI , WAKATSUKI NOBORU , MORITA TOSHIYUKI , ITOU HIDEAKI
IPC分类号： H03H9/25 , H03H3/08 , H03H9/02 , H03H9/05
摘要： PURPOSE:To prevent the discharge of an elastic surface wave element at end surfaces, by providing an insulator between the circumference of the element and the bottom plate of a metallic case. CONSTITUTION:The circumference of elastic surface wave element 18 mounted on bottom plate 17 of metallic case 16 is covered with insulator 19. As this insulator 19, resin having excellent electric insulating property is favorably used and epoxy resin, silicone resin, etc., for example, are suitable. When Eb>>Ea where the dielectric strength of the insulator is Eb and that of air is Ea, the discharge of the element at end surfaces is prevented.

28. 发明专利

JPS56146316A ELASTIC SURFACE WAVE DEVICE 失效
公开(公告)号：JPS56146316A
公开(公告)日：1981-11-13
申请号：JP4857380
申请日：1980-04-15
申请人： FUJITSU LTD
发明人： TODA YOSHIFUMI , ITOU HIDEAKI , MORITA TOSHIYUKI , HODOHARA KIYOAKI
IPC分类号： H03H9/25 , H03H3/08 , H03H9/02 , H03H9/05
摘要： PURPOSE:To prevent not only the concentration of electric charge caused by the pyroelectric effect but the discharge on the end face of an elastic surface wave element, by rounding the corner part where the surface and the side face of said wave element adjoin with each other and the corner part where the side faces adjoin with each other. CONSTITUTION:The elastic surface wave element 17 is adhered to the bottom plate 16a via the adhesive 21 when the element 17 is stored into the metallic case 16. Then the corner part where the surface and the side face of the element 17 adjoin with each other is rounded 22, and at the same time the corner part where the side faces adjoin with each other is also rounded 23. For such elastic surface element, the electric charge caused on the element surface by the pyroelectric effect is prevented from concentrating in the corner part. At the same time, the discharge given to the plate 16a of the case 16 from the element surface can be avoided.

29. 发明专利

JPS56120237A LINE IDENTIFYING SYSTEM 失效
公开(公告)号：JPS56120237A
公开(公告)日：1981-09-21
申请号：JP2366080
申请日：1980-02-27
申请人： FUJITSU LTD
发明人： MORITA TOSHIYUKI , HAYASHI MASAO
IPC分类号： H04J3/00 , H04B7/14 , H04B7/15 , H04B7/24 , H04J3/14 , H04K1/04 , H04L1/00 , H04L7/00 , H04L27/18 , H04W56/00 , H04W84/12
摘要： PURPOSE:To enable line identification, by making different the virtual random signal applied to other channel by a given phase, to the virtual random signal applied to the reference channel. CONSTITUTION:The signal inserted with the frame synchronising signal FS and converted in speed is separated into two systems with a serial-parallel conversion circuit SP. Further, one channel is scrambled with the virtual random signal generator PN1 at a scramble circuit SCR1. Other channel is scrambled with the signal delayed at a delay circuit DL1. Further, by keeping the delay time between the delay circuit DL1 at the transmission side and the delay circuit DL2 at the reception side equal each other, reception and reproduction can be made for correct line only.

30. 发明专利

JPS56119547A DETECTING CIRCUIT FOR BREAKING OF SIGNAL AND MARK RATE 失效
公开(公告)号：JPS56119547A
公开(公告)日：1981-09-19
申请号：JP2185880
申请日：1980-02-23
申请人： FUJITSU LTD
发明人： TODA YOSHIFUMI , MORITA TOSHIYUKI , ITOU HIDEAKI , HODOHARA KIYOAKI
IPC分类号： H04L1/00 , H04L1/20 , H04L25/02
摘要： PURPOSE:To independently determine the detection limit for breaking of signal through causing the limit of the detection mark rate to approach 0 and 1, by comparing the output of the integrating circuit, which has a time constant longer than that of the integrating circuit connected to retriggerable multivibrator, with the reference voltage. CONSTITUTION:When input signal 1 of pulse period t1 shorter than time constant CXRX of integrating circuit 14 is given to retriggerable multivibrator 11, Q' output signal 2 continues to be 0 and does not generate the alarm signal. When input signal 1 of pulse period t2 near time constant CXRX is given, output 2 repeates the operation of 0, 1 and averages them to generate the output signal, and pulse perior t2 becomes longer; and when it exceeds the threshold, alarm is generated. If instantaneous breaking sufficently longer than time constant R1C1 of integrating circuit 17 is generated in input signal 1, the alarm signal is generated when output signal 3 of integrating circuit 17 increases and exceeds the threshold voltage. If instantaneous break shorter than time constant R1C1 in the input signal, output signal 3 which does not reach the threshold voltage is reduced, and so alarm is not generated.

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