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1. 发明专利

JPH0599600A PROXIMITY FUSE 失效
公开(公告)号：JPH0599600A
公开(公告)日：1993-04-20
申请号：JP28954091
申请日：1991-10-09
申请人： NEC CORP
发明人： ODA OSAMU
IPC分类号： F42C13/04 , G01S13/88
摘要： PURPOSE:To effectively use a directional nose by a simple structure. CONSTITUTION:A guide signal indicating a pitch and a yaw is input to a direction calculator 5 during flying. The calculator 5 calculates the direction of a target article when a missile approaches the article and outputs the direction of the article to a selector 6. Then, the selector 6 judges an ignition place capable of effectively using a directional nose based on the direction, and selects any of igniters 7a-7d corresponding to the place. When the missile approaches a predetermined distance to the article, a deciding circuit 4 ignites a nose only by the igniter 7 corresponding to the ignition place near the article of the igniters 7a-7d when it outputs a trigger signal to the igniters 7a-7d based on a level of a received signal, and hence can effectively use the nose.

2. 发明专利

JPH04198788A TARGET DETECTING DEVICE 失效
公开(公告)号：JPH04198788A
公开(公告)日：1992-07-20
申请号：JP32797590
申请日：1990-11-28
申请人： NEC CORP , NIHON DENKI DENPA KIKI ENJINIA
发明人： ODA OSAMU , FUJIMOTO NAOYA
IPC分类号： G01S7/02 , G01S7/03 , G01S7/42
摘要： PURPOSE:To reduce the size of a conventional device by using a main reflector common to two radio waves with different frequencies and an auxiliary reflector reflecting the radio wave with one frequency and permeating the radio wave with the other frequency. CONSTITUTION:When radio waves with a frequency A and a frequency B are fed, the incident radio wave with the frequency A is reflected by a main reflector 1 and further reflected by an auxiliary reflector 2 and focused at the position of a feed horn 3 quite similarly to when a normal Cassegrain antenna is used. The radio wave with the frequency B is reflected by the main reflector 1 and permeates the auxiliary reflector 2 and is focused at the position of a feed horn 4 quite similarly to when a normal parabolic antenna is used. The radio waves with different frequencies can be concurrently focused at separate positions. Two antenna systems are not required to be installed in parallel, and the size of a conventional device can be reduced to a half.

3. 发明专利

JPH03220480A TARGET DISCRIMINATION APPARATUS 失效
公开(公告)号：JPH03220480A
公开(公告)日：1991-09-27
申请号：JP1521590
申请日：1990-01-24
申请人： NEC CORP , NIPPON DENKI DENPA KIKI ENG KK
发明人： ODA OSAMU , FUJIMOTO NAOYA
IPC分类号： G01S13/04 , G01S7/32
摘要： PURPOSE:To discriminate a target from the other reflecting objects when the reception intensities of the target and of the reflecting objects is equal to each other by detecting the variance of the quantity of a change in the reception intensity due to a change in detected frequencies. CONSTITUTION:A transmission/reception switching device 1 leads the transmission signal of a transmitter 2 to an antenna 3 and, during the absence of the transmission signal, leads a received signal to a receiver 4. A frequency controller 5 outputs a frequency control signal to the transmitter 2 and the receiver 4 and changes transmission and reception frequencies. The differentiated signal of reception intensity outputted from a differentiation circuit 6 based on a reception intensity signal from the receiver 4 is squared by a squaring circuit 7 and integrated by an integration circuit 8 during a prescribed time interval. An integrated signal is outputted as a target discrimination signal only when the integrated signal exceeds a prescribed value in a discriminator 9.

4. 发明专利

JPS62159075A TARGET DETECTING DEVICE 失效
公开(公告)号：JPS62159075A
公开(公告)日：1987-07-15
申请号：JP112386
申请日：1986-01-07
申请人： NEC CORP
发明人： FUJIMOTO NAOYA , ODA OSAMU
IPC分类号： G01S13/66 , G01S3/78 , G02B17/00
摘要： PURPOSE:To enlarge an aperture of a reflecting mirror by using a main reflecting mirror being common to a radio wave and a light beam, and a sub-reflecting mirror for reflecting a radio wave and making a light beam transmit through, and focusing simultaneously the radio wave and the light beam to other part on the antenna aperture center axis. CONSTITUTION:A target detecting device is provided with a main reflecting mirror 1 for reflecting a radio wave and a light beam, and a sub-reflecting mirror 2 for reflecting a radio wave and making a light beam transmit through, and an optical sensor 3 converts an incident infrared ray signal to an electric signal, and outputs it to a target detecting circuit 6. A feed horn 4 radiates a transmitting output from a transmitter-receiver 5, and also, leads an incident receiving power to the transmitter- receiver 5. The transmitter-receiver 5 outputs the transmitting output to the feed horn 4, also, converts a receiving power from the feed horn 4 to a receiving signal, and outputs it to the target detecting circuit 6. The target detecting circuit 6 outputs a target detecting circuit 6. The target detecting circuit 6 outputs a target detecting signal, when one of signals from the optical sensor 3 and the transmitter-receiver 5 exceeds some prescribed time. In this way, a size in the width direction of a device can be made small, and an aperture of the reflecting mirror can be enlarged.

5. 发明专利

JPS6211187A APPARATUS FOR DISCRIMINATING TARGET 失效
公开(公告)号：JPS6211187A
公开(公告)日：1987-01-20
申请号：JP15041385
申请日：1985-07-08
申请人： NEC CORP
发明人： ODA OSAMU , FUJIMOTO NAOYA
IPC分类号： G01S13/04 , G01S7/295
摘要： PURPOSE:To discriminate a target, by detecting the change quantity of the receiving intensity of an antenna by the scanning of beam and integrating said change quantity within a predetermined time. CONSTITUTION:A duplexer 1 guides the transmission signal of a transmitter 2 to an antenna 3 and guides the receiving signal of the antenna 3 during a period of emitting no transmission signal. A differentiation circuit 5 outputs the differentiation signal of receiving intensity and an absolute value circuit 6 outputs the absolute value thereof and an integrating circuits 7 integrates the absolute value signal within a predetermined time to output an integration signal. A discrimination circuit 8 outputs the integration signal as a target discrimination signal only when said signal exceeds a predetermined value. Therefore, a target having a complicated shape can be discriminated from a reflective body having a simple shape.

6. 发明专利

JPH07113861A COMPOSITE SEEKER 失效
公开(公告)号：JPH07113861A
公开(公告)日：1995-05-02
申请号：JP28199693
申请日：1993-10-15
申请人： NEC CORP
发明人： ODA OSAMU
IPC分类号： G01S3/42 , G01S3/786 , G01S7/03 , G01S13/66
摘要： PURPOSE:To provide a composite seeker capable of tracking a target even when the target stops the emission of a radio wave without damaging secrecy. CONSTITUTION:A passive radio wave seeker, an active radio wave seeker 30, a light wave seeker 20 and a judgment circuit 6 are provided and, at first, the radio wave seekers approach a target and the light wave seeker performs the terminal induction of the target. Since receiving output is obtained in the passive radio wave seeker in the induction due to the radio wave seekers when the target emits a radio wave, the judgment circuit 6 sets the active radio wave seeker 30 to a non-operation mode during a period when there is the receiving output of the passive radio wave seeker to hold secrecy and, since the receiving output of the passive seeker is not obtained when the target stops the emission of a radio wave, the judgment circuit 6 sets the active radio wave seeker 30 to a operation mode so as to keep sight of the target.

7. 发明专利

JPS62119399A TARGET DETECTOR 失效
公开(公告)号：JPS62119399A
公开(公告)日：1987-05-30
申请号：JP25997685
申请日：1985-11-19
申请人： NEC CORP
发明人： ODA OSAMU
IPC分类号： G01S3/78 , F42B15/01 , G01S3/02 , G01S3/789

8. 发明专利

JPH0452585A TARGET DETECTION DEVICE 失效
公开(公告)号：JPH0452585A
公开(公告)日：1992-02-20
申请号：JP16382090
申请日：1990-06-21
申请人： NEC CORP
发明人： FUJIMOTO NAOYA , ODA OSAMU
IPC分类号： G01S13/34
摘要： PURPOSE:To prevent an enemy side to discover it easily and interference by the enemy side from being received easily by using a spectrum-diffused transmission signal and by correlating it inside. CONSTITUTION:A code generator 1 generates spectrum diffusion code, outputs this transmission pulse train signal to a frequency modulator 2, and at the same time outputs it to an exclusive OR circuit 10 and a correlation function operator 11. Then, the modulator 2 performs frequency modulation by FSK (Frequency Shift Keying) by transmission pulse train signal according to spectrum diffusion code from the generator 1. Then, the operator 11 obtains a mutual correlation function between the transmission pulse train signal from the generator 1 and the reception pulse train signal from the circuit 10 and then outputs the correlation signal to a comparator 12. Then, the comparator 12 outputs target detection signal only when the correlation signal exceeds a specified value. On the other hand, since the non-correlated internal noise or interference wave does not exceeds a threshold value, the comparator 12 does not output target detection signal.

9. 发明专利

JPS60214491A Recorder 失效
标题翻译：录音机
公开(公告)号：JPS60214491A
公开(公告)日：1985-10-26
申请号：JP7128084
申请日：1984-04-10
申请人： Nec Corp
发明人： YASUDA KENTAROU , ODA OSAMU
IPC分类号： G11B27/02 , G11B5/027 , G11B5/86 , G11B27/026
CPC分类号： G11B27/026
摘要： PURPOSE:To read the recorded contents and to record them in independent positions in the same medium by moving independently a recording head and a reading head and by making it possible to supply a read signal to the recording head. CONSTITUTION:When a command supplied from a contact plug 18 is a deleting command a controller 10 actuates an oscillator 11 and supplies a high frequency current to a deleting head 2. In case of a recording command, the controller 10 changes over a switch 15 and outputs an input signal from a contact plug 17 to a recording head 3 through a current amplifier 12. In case of a reading command, the controller 10 changes over a switch 14, amplifies an output signal voltage from a reading head 6 by an amplifier 13 and outputs it from a contact plug 16. In case of a transfer command, the controller 10 changes over the switches 14 and 15 reversely, supplies a current signal to the recording head 3 from the reading head 6 through the amplifier 13 and the current amplifier 12, and records it. Simultaneously the controller 10 rotates motors 7 and 4, and shifts reading and recording positions.
摘要翻译：目的：通过独立地移动记录头和读取头，并且可以向记录头提供读取信号，来读取记录的内容并将其记录在同一介质中的独立位置。构成：当从接触插头18提供的命令是删除命令时，控制器10致动振荡器11并向删除头2提供高频电流。在记录命令的情况下，控制器10切换开关15和通过电流放大器12将来自接触插头17的输入信号输出到记录头3.在读取命令的情况下，控制器10切换开关14，由放大器13放大来自读取头6的输出信号电压并从接触插头16输出。在传送命令的情况下，控制器10反向切换开关14和15，通过放大器13和电流放大器从读取头6向记录头3提供电流信号 12，并记录。同时，控制器10旋转马达7和4，并移动读取和记录位置。

10. 发明专利

JPH04158199A PROXIMITY FUSE 失效
公开(公告)号：JPH04158199A
公开(公告)日：1992-06-01
申请号：JP28224490
申请日：1990-10-19
申请人： NEC CORP
发明人： SHIROMA TAKENORI , ODA OSAMU
IPC分类号： F42C13/04 , G01S13/88
摘要： PURPOSE:To eliminate operation except at a target by providing a second discriminator for deciding to output a high level when a distance value indicated by a distance signal becomes a predetermined value or less, and an ignition driver for operating an ignition when both the outputs of first and second discriminators become high levels. CONSTITUTION:A distance signal A to be supplied from a guiding device placed in a missile is input to a discriminator 4b. When the missile approaches a target and the signal A indicates a value for a predetermined distance, the discriminator 4b outputs a high level to an AND gate of a driver 4. Both discriminators 4a, 4b output high levels and a 2-input AND gate of a driver 5 satisfies an AND condition, the driver 5 outputs a drive signal to an ignition circuit 6 based on the output of the gate to ignite powder. The amplitude of a reception signal level for sending a high level output and distance of the discriminators 4a, 4b are previously set based on performance of the missile. An operation except at a target can be remarkably suppressed.

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