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公开(公告)号：JPH0478946A
公开(公告)日：1992-03-12
申请号：JP19238490
申请日：1990-07-20
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PURPOSE:To recognize the change of an EEPROM (read only memory which can execute electrical erasure, write, and rewriting), or the excess of the number of times of write of a specific address by monitoring and managing the number of times of write of each address of two sets of EEPROMs. CONSTITUTION:The monitoring system of a memory using a nonvolatile memory is provided with a monitoring means 6 for writing data of different kinds in every address of a first nonvolatile memory (EEPROM) 1, and also, and integrating the number of times of rewriting of data rewritten to each address. Also, the monitoring means 6 is provided with an alarm means 5 for migrating write to a second nonvolatile memory 2 prepared separately in the case the number of times of rewriting of a specific address of the nonvolatile memory 1 exceeds the limited number of times, and also, informing the change of a first nonvolatile memory 1. In such a way, a change of the EEPROM, and an excess of the limited number of times of the number of times of write of the specific address can be recognized.
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公开(公告)号：JPH0228579A
公开(公告)日：1990-01-30
申请号：JP17942188
申请日：1988-07-18
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PURPOSE:To realize a system which can track a received radio wave without any mechanical movable part at low cost with simple constitution by scanning the beam direction of an antenna whose beam direction can be controlled electrically at a constant frequency. CONSTITUTION:The arriving received radio wave is received by radiation elements 11-1n, whose reception outputs are inputted to variable phase shifters 21-2n; and the output signals of the variable phase shifters 21-2n are inputted to an adder 30. Then a receiver 40 inputs the addition output of the adder 30 and outputs an input signal level. Then a synchronous detecting circuit 60 detects the level signals outputted by an oscillator 50 and the receiver 40 synchronously with the oscillation output of the oscillator 50. Then a control circuit 70 inputs the oscillation output of the oscillator 50 and the detection output of the synchronous detecting circuit 60 and outputs respective control signals for controlling the respective phase shifters 21-2n. Consequently, the system which can track the received radio wave without any mechanical movable part can be realized at low cost with the simple constitution.
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公开(公告)号：JPH01193912A
公开(公告)日：1989-08-03
申请号：JP1693888
申请日：1988-01-29
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PURPOSE:To diagnose a back-up power circuit without using a complicated detection circuit by periodically operating a back-up power and checking the subsequent content of memory data. CONSTITUTION:When a CPU 5 excites a relay 4a through an output port 6, and brakes a contact point 4b, a second volatile memory 3 operates by a back-up battery 7. When the back-up battery is exhausted, storage data of the second volatile memory 3 is lost. The excitation of the relay 4a is removed, and the second volatile memory 3 is operated by a normal-use power 1, whereby power diagnosis data in a first volatile memory 2 and that in the second volatile memory 3 are compared in a central processing unit (CPU) 5. When they are different, the back-up power circuit is judged that an abnormality has occurred and an abnormality detection signal is outputted to a terminal 8. Thus, the consumption of the back-up power and the like can be diagnosed by a simple circuit.
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公开(公告)号：JPH06318812A
公开(公告)日：1994-11-15
申请号：JP10579393
申请日：1993-05-07
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PURPOSE:To attain the tracking control of a satellite or the like by a step track without a pilot signal even when a burst signal is received. CONSTITUTION:An antenna 1 receives a reception signal S1 and changes its directivity stepwise with a drive signal S4 from a motor 4. A reception circuit 2 produces an intermediate frequency signal S3 from the reception signal S1. A demodulator 3 produces a reception level signal S5 and a synchronizing signal S7 synchronously with the signal S5 in response to the signal S3. A drive control circuit 5 integrates the reception level signal S5 for a predetermined period in the synchronization state only of the demodulator 3 and produces a drive command signal S8 through the comparison based on the reception level signal integrated as above and uses the signal S8 to control the motor 4.
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公开(公告)号：JPH03113615A
公开(公告)日：1991-05-15
申请号：JP25458389
申请日：1989-09-28
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
IPC: G06F1/14
Abstract: PURPOSE:To prevent the errorneous calibration of the time value of a software timer by reading the time value from a storage means when a reference clock is inputted, subtracting a normalization value from the time value, obtaining an error value and setting the normalization value in the storage means when the value of the error value is within a prescribed range. CONSTITUTION:A counting means 10, a normalization means 11 and a calibration means 12 are included in CPU 1. A frequency divider 3 frequency-divides a clock, generates the real time clock of 100 Hz and inputs it to the interruption terminal of CPU 1. A reference clock oscillator 4 generates the reference clock of 1Hz and inputs it to CPU 1. When the reference clock is inputted, the time value is read from a memory 5, a normalization processing is executed as against the time value and the normalization values is obtained. Then, the normalization value is subtracted from the time value so as to obtain the error value. Then, the values of the error value is decided to be within the prescribed range or not. When it is within the prescribed range, the normalization value in the memory 5. Thus, the time value is prevented from the being errorneously calibrated.
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Patent Agency Ranking
公开(公告)号：JPS62260570A
公开(公告)日：1987-11-12
申请号：JP10262286
申请日：1986-05-02
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
IPC: H02P1/42
Abstract: PURPOSE:To protect a motor by emitting a signal to a command control section when the energizing time of currents flowing through an auxiliary coil exceeds a fixed time. CONSTITUTION:When a drive command is outputted from a command control section 3, a drive control section 2 flows power currents through the main coil excitation side and the auxiliary coil excitation side. When a split-phase- start type single-phase motor 1 is turned, a centrifugal switch 5 is operated, and the excitation of the auxiliary coil A1, A2 sides is released. When the drive control section 2 flows currents through the motor 1, on the other hand, currents flowing through auxiliary coils A1, A2 are detected by a current detector 6. The energizing time of currents is counted by a timer 7, and a stoppage command signal is outputted to the command control section 2 from the timer 7 when the energizing time exceeds a fixed time. 4 : Thermal relay.
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公开(公告)号：JPS62174672A
公开(公告)日：1987-07-31
申请号：JP1572886
申请日：1986-01-29
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PURPOSE:To uniform accuracy when a satellite is tracked by detecting the stroke length of a screw jack which moves an antenna and varying the time of step driving for rotating an electric motor according to the level of the detection. CONSTITUTION:The driving device consists of the screw jack 2 constituting the driving part 7 for the antenna 5, the motor 3 which drives it, a detector 4 which detects the stroke length L of the jack 2 or the orientation angle thetaof the antenna 5, etc. Further, a step track device 8 controls the driving time of the motor 3 for each step of the jack 2 according to the output signal of the detector 4. Consequently, the one-step driving time corresponding to the stroke length L is set in the device 8 previously. Then, the stroke length L of the jack 2 or corresponding orientation angle theta is detected and then the driving time of rotation of the motor 3 is varied and adjusted according to the value. Therefore, the quantity of fine variation in the angle of the antenna 5 is made constant to obtain uniform tracking accuracy.
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公开(公告)号：JP2009175037A
公开(公告)日：2009-08-06
申请号：JP2008015025
申请日：2008-01-25
Inventor： YAMANE TOSHINOBU
IPC: G01S3/42
Abstract: PROBLEM TO BE SOLVED: To provide a tracking device capable of performing optimum adjusting of a phase even while a movable body is moving. SOLUTION: A tracking reception section extracts signals of an orthogonal component generated corresponding to a deviation between a direction of a radio source and a main axis direction of an antenna for tracking the radio source from an output of the antenna. A phase adjusting section superposes an AC signal to one of the signals of the orthogonal component and adjusts the phase of the signals of the orthogonal component so as to suppress an interference component occurring on the other signal of the orthogonal component. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供即使在可移动体移动时也能够进行相位的最佳调整的跟踪装置。 解决方案：跟踪接收部分从天线的输出中提取对应于无线电源的方向与用于跟踪无线电源的天线的主轴方向之间的偏差产生的正交分量的信号。 相位调整部将AC信号叠加到正交分量的信号之一，并调整正交分量的信号的相位，以抑制在正交分量的另一信号上发生的干扰分量。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2001148605A
公开(公告)日：2001-05-29
申请号：JP32856299
申请日：1999-11-18
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PROBLEM TO BE SOLVED: To inexpensively and precisely track a satellite operated by plural different frequency bands by a step track system. SOLUTION: A first antenna control means 28 specifies the direction of a satellite by a step tracking system based on the output signal of the first reception means 10 of a C band. A second antenna control means 30 specifies the direction of the satellite by the step tracking system based on the output signal of the second reception means of a Ku band. An antenna 4 is step-driven near a direction estimated from the direction of the satellite, which the first antenna control means 28 specifies. Namely, the second antenna control means 30 grasps the direction of the satellite to a certain degree and acquires the satellite by the step tracking system. Thus, the satellite can be tracked by the step tracking system even in the Ku band of narrow antenna beam width.
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公开(公告)号：JPH09233564A
公开(公告)日：1997-09-05
申请号：JP4022596
申请日：1996-02-28
Applicant: NEC CORP
Inventor： YAMANE TOSHINOBU
Abstract: PROBLEM TO BE SOLVED: To control the directional antenna of a mobile station itself so as to turn the directional antenna toward a base station at all times based on the signal of wide band data by turning the directional antenna of the base station itself toward the mobile station based on the position information of the mobile station and transmitting this signal of wide band data to the mobile station. SOLUTION: A mobile station 1 reports its own position through a GPS antenna 2 and a position information measuring instrument 3 to an antenna controller 11. The antenna controller 11 transmits this position information through a transmitter/receiver 9 and full directional antennas 10 and 27 to an antenna controller 25 at a base station 21. The antenna controller 25 at the base station 21 turns an antenna 22 for video transmission toward the mobile station 1 by driving motors 23 and 24 based on this position information and transmits a non-modulated signal. The mobile station 1 receives this non- modulated signal through an antenna 4 for video transmission. The antenna controller 11 at the mobile station 1 turns the antenna 4 for video transmission toward the base station 21 by driving motors 5 and 6 so that the reception level of this signal can be maximum.
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