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1. 发明专利

JPS62274842A RADIO COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPS62274842A
公开(公告)日：1987-11-28
申请号：JP11800086
申请日：1986-05-22
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , SAGAWA MITSUNORI
IPC分类号： H04J3/06
摘要： PURPOSE:To attain mutual simultaneous talking between a master station and plural slave stations without hindrance such as crosstalk in each one channel of transmission/ reception radio channel by using the same frequency for the master station and the plural slave stations and controlling the frequency sequentially at a high speed with a synchronizing signal from the master station. CONSTITUTION:An optional station is used as the master station A and others are used as slave stations B, the transmission frequency of the master station A and the reception frequency of the plural slave stations B are assigned to the same radio channel, the transmission frequency of the slave stations B and the reception frequency of the master station are assigned to one and same radio channel having the different frequency from the above frequency, a synchronizing signal is superimposed onto the sending signal from the master station A at all times, the sending period of each station is set in advance so as not to be overlapped with that of other station in the slave stations B, the sending period of its own station is controlled automatically by using the synchronizing signal and the stations are operated sequentially according to the set sending period. Thus, the simultaneous mutual talking between the master station and the plural slave stations B is attained without crosstalk by using the radio channel for each transmission/reception.

2. 发明专利

JPS599513A Data input device 失效
标题翻译：数据输入设备
公开(公告)号：JPS599513A
公开(公告)日：1984-01-18
申请号：JP11674982
申请日：1982-07-07
申请人： Hitachi Ltd , Hitachi Service Eng Co Ltd
发明人： HACHITSUKA TAKASHI , KIMURA TOSHIO
IPC分类号： G01D3/024 , G01D3/02 , G06F3/05 , G06G7/04 , G06G7/26
CPC分类号： G01D3/02
摘要： PURPOSE:To make it possible to perform the measurement within the short accuracy ranges of sensors even though a measuring range is expanded, by providing a structure wherein the output levels of the sensors are added, manipulating the amplification ratio of an amplifier even though sensors are increased, thereby supplying outputs to an operator at the same level. CONSTITUTION:The range of an output to an operator 2 is 0-4.8V. The range of the outputs of a transmitting devices T1-T3 is 0.4-2V. The measuring range of sensors S1-S3 are divided into three parts so that relationship S3
摘要翻译：目的：为了能够在传感器的短距离范围内进行测量，即使测量范围扩大，通过提供传感器的输出电平相加的结构，即使传感器是放大器也可以操纵放大器的放大率增加，从而向相同级别的操作员提供输出。构成：输出到操作员2的范围为0-4.8V。发送装置T1-T3的输出的范围为0.4〜V2V。传感器S1-S3的测量范围被分成三部分，从而获得关系S3 <= S2 <= S1。当测量范围在S3内时，输出通过发送设备T3发送到转换器1，T1和T2的输出变为零电平。当测量范围在S2内时，从发送装置T3输出最大电平2V，从发送装置T2输出与电平对应的值，T1的输出为零电平。当测量范围在S1内时，发送设备T3和T2的输出处于最大电平，发送设备T1的输出对应于该电平。输出电平的转换相应地由转换器1执行，并且0-4.8V范围内的输出被提供给操作者2。

3. 发明专利

JPS5693015A ESTIMATING DEVICE FOR WATER LEVEL IN REACTOR 失效
公开(公告)号：JPS5693015A
公开(公告)日：1981-07-28
申请号：JP16935479
申请日：1979-12-27
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , ONODERA KATSUSHIGE , KIYOKAWA KAZUHIRO
IPC分类号： G01F23/00 , G21C17/02 , G21C17/035
摘要： PURPOSE:To estimate changes in water level, by a method wherein an operational circuit, which finds a difference between an incoming cooling water amount to and an outgoing cooling water (steam) from a nuclear reactor, converts a ratio of the difference to a set constant into changes in water level per unit hour, and multiplies the changes by a set hour, is installed. CONSTITUTION:For example, a steam release valve for pressureized steam in a nuclear reactor opens, and a water level changes resulting from flowing-in of cooling water from a separated cooling water pump. A signal SG1 from a cooling water meter sends an incoming amount signal to a substractor 5 through a signal processor 1, and an operational amplifier 4. In the meantime, a signal S7 from the release valve sends an outgoing (liquid) amount signal, corresponding to an exhaust steam amount, through a processor 2 and the operational amplifier 4. A difference signal between the incoming and the outgoing amount is outputted to a divider 6, and a change amount in a water level per unit hour is sent to a multiplier 8. The change amount is multiplied by a set time sent from an elapsing time setter 10, and then, an estimated value for changes in the water level is outputted to an indicator 9.

4. 发明专利

JPS63160424A RADIO TRANSMITTER 失效
公开(公告)号：JPS63160424A
公开(公告)日：1988-07-04
申请号：JP30645486
申请日：1986-12-24
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , KITAGAMI TAKEHIRO
IPC分类号： H04B1/04
摘要： PURPOSE:To attain a stable radio communication while S/N is kept constant even if noise level is changed by controlling a high frequency output of a radio transmitter in response to a noise detection level. CONSTITUTION:A noise detector 10 is added to the transmission circuit of a radio transmitter, a noise caught by a transmission antenna 4 is rectified and extracted as a DC signal, the DC signal controls a current supplied to the transmission circuit to adjust the high frequency output automatically. That is, when the noise level is increased, the noise signal is rectified and the DC signal level rises and the supply current to the transmission circuit controlled by the DC signal is increased and the high frequency output is increased attended therewith. Conversely, when the noise level is decreased, the DC signal is decreased, the supply current is decreased and the high frequency output is lowered. Thus, the high frequency output is increased/decreased in response to the change in the external noise level to ensure a prescribed S/N and stable communication is attained by using a radio equipment with a minute output.

5. 发明专利

JPS57141141A ADAPTER FOR MODEM 失效
公开(公告)号：JPS57141141A
公开(公告)日：1982-09-01
申请号：JP2550381
申请日：1981-02-25
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , KIYOKAWA KAZUHIRO
IPC分类号： H04B1/74 , H04B15/00 , H04L1/00 , H04L1/04 , H04L27/00
摘要： PURPOSE:To achieve excellent data communication in the presence of a large noise by transmitting communication data by shifting it selectively into a less- noise frequency band and by returning it to its original frequency band on a reception side. CONSTITUTION:A switch, a discriminator 2, a frequency converter 3, a controller 4, a frequency converter, a transmission part T1, a reception part R1, and a communication circuit are provided. The discriminator 2 consists of band-pass filters B1-B3, averaging circuits AV1-AV3, sample holding circuits SH1-SH3, an adder ADD, etc. The output of the adder ADD is inputted to a voltage-controlled oscillator VCO, which varies in oscillation frequency in proportion to the input voltage, so a variable resistance is so set that the oscillator VCO oscillates at center frequencies in the bands of the filters B1-B3. The output of the oscillator VCO is inputted to the frequency converter 3 and the output f1 of the oscillator VCO and the carrier f0 of the transmission part T1 are mixed by an operational amplifier to obtain an output frequency f0+f1. This is transmitted and then returned to the original frequency band on a reception side.

6. 发明专利

JPS57115033A DATA TRANSMISSION AND RECEPTION DEVICE 失效
公开(公告)号：JPS57115033A
公开(公告)日：1982-07-17
申请号：JP109081
申请日：1981-01-09
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , KIYOKAWA KAZUHIRO
IPC分类号： H04L1/00 , H04B1/10 , H04B3/00 , H04B3/11
摘要： PURPOSE:To enable stable communication with less error rate even on a communication line of high noise, by cancelling noise superimposed on a data signal through the use of noise signal induced in a noise detection cable and controlling the data signal level and the reception signal level against noise signal level. CONSTITUTION:A data signal from a transmitter 2 is appied to a variable gain amplifier 11 and controlled according to the noise signal level induced in a noise detection cable 16 and applied to a communication cable 9 via a transformer 4. The received data signal is applied to a noise separator 21, the noise signal is subtracted and applied to a variable attenuator 19. The data signal is attenuated with a variable attenuator 19 according to the level of noise signal from the cable 16 and applied to a receiver 7.

7. 发明专利

JPS61831A PROCESS INPUT DEVICE 失效
公开(公告)号：JPS61831A
公开(公告)日：1986-01-06
申请号：JP11998884
申请日：1984-06-13
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , OOMORI SHIGEO , SAGAWA MITSUNORI , KIYOKAWA KAZUHIRO
IPC分类号： G05B9/02 , G05B7/02 , G06F3/05
摘要： PURPOSE:To delete the specific noise superposed on a process signal by discriminating signals through a BPF that transmits only the induced noise of a commercial power supply which is superposed on the process signal and subtracting the discriminated signal from the process signal. CONSTITUTION:A process signal S3 given from a process signal source is supplied to a reverse amplifier A1 consisting of resistances R1 and R2. One of both inverted signals is supplied to a reverse amplifier A2 via a resistance R3; while the other inverted signal is supplied to a BPF1 via a capacitor C1 and a resistance R4. The BPF1 inverts only the AC signals of 50-60Hz and transmits and supplies them to the amplifier A2 via a resistance R5. The amplifier A2 adds the output of the amplifier A1 and the output of the BPF1. Therefore, an inverted signal is obtained by deleting the noise component superposed on the signal S3 out of said signal S3 which is supplied to a signal processing circuit 10.

8. 发明专利

JPS62169081A CONTROL-ROD DRIVE-SPEED AUTOMATIC REGULATOR 失效
公开(公告)号：JPS62169081A
公开(公告)日：1987-07-25
申请号：JP1020386
申请日：1986-01-22
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： HACHITSUKA TAKASHI , KIMURA TOSHIO
IPC分类号： G21C7/16

9. 发明专利

JPS59139771A Automatic controller of image pickup screen 失效
标题翻译：图像拾取画面的自动控制器
公开(公告)号：JPS59139771A
公开(公告)日：1984-08-10
申请号：JP1286383
申请日：1983-01-31
申请人： Hitachi Ltd , Hitachi Service Eng Co Ltd
发明人： KIMURA TOSHIO , YATSUKA TAKASHI , KIYOKAWA KAZUHIRO
IPC分类号： H04N5/225 , H04N5/30
摘要： PURPOSE: To simplify the photographing operation by storing automatically the image of a subject in a full effecitve memory range of a frame memory by means of both video and scan signals at a spot formed at a single end part of the subject.
CONSTITUTION: A blanking pulse (a) is supplied to one side of an AND circuit 20, and a pulse (b) having the width little larger than the pulse (a) is produced through a monostable multivibrator 22 and supplied to the terminal of one side of an AND circuit 23. A terminal of the circuit 20 is supplied to the other terminal of the circuit 23 via an inverter 21; while the other terminal of the circuit 20 is supplied to the terminal R of an FF 24. The output of the circuit 20 is connected to the terminal S of the FF 24. The circuit 20 delivers "1" with input of the pulse (a) when "1" is not supplied to the circuit 23 by the video signal (d) of a spot and the pulse (b) of the monostable multivibrator 22. Then the FF 24 is set and "1" is delivered from Q' to turn on a transistor 25. Then the signal (d) is recorded in a full range of a frame memory. Under such conditions, a motor 29 is stopped.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在形成在被摄体的单个端部处的点处的视频和扫描信号自动存储被摄体的图像在帧存储器的全效率存储范围内来简化拍摄操作。构成：向AND电路20的一侧提供消隐脉冲（a），并且通过单稳态多谐振荡器22产生具有比脉冲（a）稍大的宽度的脉冲（b），并提供给一个电路20的端子通过反相器21提供给电路23的另一个端子; 而电路20的另一个端子被提供给FF24的端子R.电路20的输出端连接到FF24的端子S.电路20通过脉冲输入端输出“1” （a）当点位的视频信号（d）和单稳态多谐振荡器22的脉冲（b）未向电路23提供“1”时，FF24被置位，“1” 从Q'传送以接通晶体管25.然后信号（d）被记录在帧存储器的全范围内。在这种情况下，马达29停止。

10. 发明专利

JPS58126657A SPARK CHAMBER 失效
公开(公告)号：JPS58126657A
公开(公告)日：1983-07-28
申请号：JP754482
申请日：1982-01-22
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KIMURA TOSHIO , KIYOKAWA KAZUHIRO , HACHITSUKA TAKASHI
IPC分类号： G01T5/12 , H01J47/14
摘要： PURPOSE:To enable a constantly stable measurement to be automatically performed on even a nuclide having a short half-life by automatically obtaining an optimum applied voltage which corresponds to the change of the counting rate, and supplying the optimum applied voltage to each electrode by regulating high- voltage power sources. CONSTITUTION:The initial voltages of high-voltage power sources 6 and 8 are set by controlling manual voltage regulators 14 and 15. Next, when they are affirmed by voltmeters (M1) and (M2), the frequency of the electric discharge of a sample is counted in a spark chamber 1. Then, the counted value is fed to the input of a counting-rate detector 16, and the detector 16 delivers a signal corresponding to the counting rate of the spark chamber 1. Here, when a sample of a radioactive nuclide having a short half-life is measured in the spark chamber 1, the counting rate decreases with the lapse of time, the outputs of operation amplifiers (A1) and (A4) decrease as the counting rate decreases, and the set voltages of the power sources 6 and 8 decrease automatically. Thus, each electrode installed in the spark chamber 1 can be automatically supplied with an applied voltage which corresponds to the counting rate.

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