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1. 发明专利

JPS544023A DECIMAL POINT DISPLAY AND CONTROL SYSTEM FOR NUMERAL DISPLAY UNIT 失效
公开(公告)号：JPS544023A
公开(公告)日：1979-01-12
申请号：JP6796977
申请日：1977-06-10
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO
IPC分类号： G06F3/12 , G06F3/147
摘要： PURPOSE:To enable decimal display and luminance control, in a numeral display unit having the 4-bit data input for numeral display control and the 1-bit data set input.

2. 发明专利

JPS5440031A DISPLAY CONTROL SYSTEM FOR DISPLAY UNIT 失效
公开(公告)号：JPS5440031A
公开(公告)日：1979-03-28
申请号：JP10634777
申请日：1977-09-06
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , NOMURA AKIHITO
IPC分类号： G06F3/153 , G06F3/14 , G09G5/18
摘要： PURPOSE:To avoid the transfer process of the same data and thus to enhance the processing capacity of the computer by changing the ratio between the trigger signal number of the sweep binary counter and the signal unmber of the data transfer request via the division circuit and the selection circuit.

3. 发明专利

JPS5496065A DISTANCE MEASURING METHOD 失效
公开(公告)号：JPS5496065A
公开(公告)日：1979-07-30
申请号：JP188278
申请日：1978-01-13
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , FUJINAMI TOSHIKI , NOMURA AKIHITO
IPC分类号： G01S1/72 , G01S15/74
摘要： PURPOSE:To realize distance measurement for a long period of time under the influence of noise, by measuring the distance between the master station and slave station under water by changing over between the transponder system and Pinger system depending on the noise. CONSTITUTION:According to a specific time signal generated by a time generating circuit 5 of a master station 1 under water, a specific sound wave pulse signal is transmitted from a transmitting circuit 8 and a transmitter 9 through an interface circuit 6, and is received by a receiver 11 of a slave station 2 under water. This reception signal causes a gate 13 to be opened, and the sound wave pulse signal from a pulse generating circuit 15 is transmitted from a transmitter 19 and is received in the master station 1. Thus, the distance between the master station 1 and the slave station 2 is measured by the transponder method. In this case, a gate 17 is closed by the sound wave signal of the circuit 15 through the gate 13 of the slave station 2. On the other hand, when the submarine noise in the vicinity of the slave station is large and the sound wave pulse signal from the master station 1 is not received by the slave station 2 at the specified time, the sound wave pulse signal from the circuit 15 through the open gate 17 is received by the master station 1, so that the distance may be measured for a long period of time under the influence of noise by the Pinger system.

4. 发明专利

JPS543569A UNDERWATER DISTANCE MEASURING SYSTEM 失效
公开(公告)号：JPS543569A
公开(公告)日：1979-01-11
申请号：JP6796877
申请日：1977-06-10
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , NOMURA AKIHITO
IPC分类号： G01S15/08 , G01S15/00
摘要： PURPOSE:To prevent the influence of acoustic noise and perform measurement of underwater distances with good S/N by controlling the transmission of the acoustic signal of a sub-station with the underwater current from the main station.

5. 发明专利

JPS51112247A SELFFDIAGNOSIS SYSTEM OF SIGNAL CONVERSION EQUIPMENT 失效
公开(公告)号：JPS51112247A
公开(公告)日：1976-10-04
申请号：JP3676675
申请日：1975-03-28
申请人： HITACHI LTD
发明人： WATANABE SHIGERU , MIYATA MASAHIKO
IPC分类号： G06F11/22 , G01S7/52 , G06F11/00
摘要： PURPOSE:To improve reliability and maintenance ability of a digitalized signal conversion equipment by adding a self-diagnosis function.

6. 发明专利

JPS51112241A BINARY NUMBER WEIGHT CONVERSION CIRCUIT 失效
公开(公告)号：JPS51112241A
公开(公告)日：1976-10-04
申请号：JP3676775
申请日：1975-03-28
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , WATANABE SHIGERU
IPC分类号： G06F7/00
摘要： PURPOSE:To change a circuit which converts a binary number whose weight of MSB is A into a binary number with weight B of its MSB into a simple weight conversion circuit by connecting digital adders in series.

7. 发明专利

JPS63293649A DISPLAY SYSTEM FOR WORKING STATE OF PROCESSOR 失效
公开(公告)号：JPS63293649A
公开(公告)日：1988-11-30
申请号：JP12814487
申请日：1987-05-27
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , KATAYAMA TAKASHI
IPC分类号： G06F11/32
摘要： PURPOSE:To realize the check for normalness of a processing sequence by recognizing whether a program which gives the ON/OFF control to the display put into the course of a sequence processing action is carried out periodically or not. CONSTITUTION:A processor 1 carries out a main program via a processing part 4. The reference is given to the state of a specific bit set at a register 3 during execution of the main program. The ON/OFF signal is delivered via an output buffer 5 in accordance with the result of said reference to the state of the specific bit. Thus a display device 6 is controlled. In this case, the specific bit set at the register 3 is inverted in each fixed cycle via a timer interruption processing part 2. This inverting cycle is larger than the executing cycle of the main program. For instance, the specific bit is never inverted when an abnormal loop occurs in the main program and this abnormal state can be displayed as it is.

8. 发明专利

JPS53120121A ROTATION CONTROL CIRCUIT FOR DC MOTOR 失效
公开(公告)号：JPS53120121A
公开(公告)日：1978-10-20
申请号：JP3455977
申请日：1977-03-30
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO
IPC分类号： H02P7/29 , H02P7/293
摘要： PURPOSE:To permit control of the rps of a DC motor by intermittently supplying voltage supplied to the motor and detecting the back electromotive force of the motor with a switching circuit during the ''off'' period of the voltage supply.

9. 发明专利

JPS52125263A CHATTERING PREVENTION CIRCUIT 失效
公开(公告)号：JPS52125263A
公开(公告)日：1977-10-20
申请号：JP4129376
申请日：1976-04-14
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO
IPC分类号： H03K5/1254 , H03K5/01
摘要： PURPOSE:To reduce the design man-hours and to make the logic circuit unified in mounting, by providing FF circuit and clock pulse generating circuit and by obtaining the chattering prevention circuit for the signal contact switch possible to treat as pure logic circuit.

10. 发明专利

JPS52154A HYPERBOLIC CURVE FM WAVE GENERATOR 失效
公开(公告)号：JPS52154A
公开(公告)日：1977-01-05
申请号：JP7571575
申请日：1975-06-23
申请人： HITACHI LTD
发明人： MIYATA MASAHIKO , WATANABE SHIGERU
IPC分类号： H03B23/00
摘要： PURPOSE:To digitally generate a hyperbolic curve FM wave with counter without ROM.

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