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1. 发明专利

JPH075239A GPS RECEIVER 失效
公开(公告)号：JPH075239A
公开(公告)日：1995-01-10
申请号：JP16970293
申请日：1993-06-16
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU
IPC分类号： G01S19/20 , G01S19/40 , G01S5/14
摘要： PURPOSE:To correct the degrading of position accuracy at a low cost without special equipment depending on selective utilizing property by extracting the diurnal component of changes in position from a data observed at a known fixed point to be stored together with time for use as correction value. CONSTITUTION:Signals received by an antenna 1 and a receiver 2 are demodulated to perform a position calculation with a arithmetic section 3. A satellite radiowave is received at a fixed known point for more than 24 hour and a difference between the fixed point positional information and a measured position obtained by receiving radiowaves to compute is determined to be supplied to a signal processing section 5. A position error data (diurnal component of positional changes) extracted with a processing section 5 is stored into a memory section 6 together with date and time data. When a receiver is used in a moving object such as ship later for position measurement, in computation with the arithmetic section 3, a memory data of the memory section 6 is used to determined a position by correction. As a satellite appears at the same position as that on the preceding day at a cycle of about 23 hour and 56 minute, it is advanced by 4 minute per day thereby enabling the correction of the data by the memory data four minute later back from the preceding day.

2. 发明专利

JPH05107333A SHIP RADIO COMMUNICATION SYSTEM 失效
公开(公告)号：JPH05107333A
公开(公告)日：1993-04-27
申请号：JP29854391
申请日：1991-10-17
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI , MIWA KATSUJI , HIRAMA AKIRA
IPC分类号： G01S19/07 , G01S19/14 , G01S19/41 , H04B7/00
摘要： PURPOSE:To form a radio communication system, which has a high utilization factor of frequency band and excellent convenience and reliability, with a ship station in which a GPS receiver is provided and a base station in which a receiver and a means of estimating an error in the position of its own station measured by the receiver as GPS error information are provided. CONSTITUTION:A ship station 30 is provided with means 32, 32a of delivering a GPS error information demand signal to demand the delivery of GPS error information to a base station 20 and a means of receiving the GPS error information transmitted from the base station and correcting the position of its own ship measured by a GPS receiver 31 of its own station. The base station 20 is provided with means 22, 22a of delivering the GPS error information after receiving the GPS error information demand signal from the ship station 30.

3. 发明专利

JPH023149B2 失效
公开(公告)号：JPH023149B2
公开(公告)日：1990-01-22
申请号：JP8880984
申请日：1984-05-01
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI
IPC分类号： G01S7/526 , G01S15/89 , G01S15/96

4. 发明专利

JPS62240885A AFTER-STORAGE CORRELATION TYPE ULTRASONIC DETECTOR AND DISPLAY 失效
公开(公告)号：JPS62240885A
公开(公告)日：1987-10-21
申请号：JP2463887
申请日：1987-02-06
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI
IPC分类号： G01S7/62
摘要： PURPOSE:To enable a noise to be simply and easily removed by storing detection information before a correlation processing and correlating the adjacent read-out signals with each other among the read-out signals on the storage readout side. CONSTITUTION:Detection information is transferred to a main memory unit 22 via a terminal 22e and written in a RAM 75. The information read out of the RAM 75 is fed via a shift register 79 and the output of D1 of the register 79 and the output of D2 that is delayed from the output of D1 by one bit, that is, the two outputs D1 and D2 which are adjacent to each other in readout are given to a ROM 78. The ROM 78 is a code converter and the two pieces of information of D1 and D2 are converted to different pieces of information in the ROM 78. In the usual reflected and received signals of a fish finder in general, since no extreme difference is present between one piece of detection information and a subsequent piece of detection information, it scarcely occurs that the preceding detection information has no signal and the present detection information is received at a high level. On the other hand, since interference noises generated when the transmission signals of another fish finder are directly received are generally strong, when either of the two pieces D1 and D2 of information has no signal, the detected signal is forcibly invalidate so that the interference noises can be removed.

5. 发明专利

JPS619594B2 JPS619594B2 - 失效
公开(公告)号：JPS619594B2
公开(公告)日：1986-03-25
申请号：JP8376478
申请日：1978-07-10
申请人： Koden Electronics Co Ltd
发明人： TANAKA ISOICHI , KATAYAMA SUSUMU , CHIWAKI KENICHI , KOBAYASHI KENICHI
IPC分类号： A61B8/00 , G01N29/06 , G01S7/06 , G01S7/295 , G01S7/62
CPC分类号： G01S7/6263 , G01N29/0609

6. 发明专利

JPS60231191A SOUND WAVE DETECTOR 失效
公开(公告)号：JPS60231191A
公开(公告)日：1985-11-16
申请号：JP8880984
申请日：1984-05-01
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI
IPC分类号： G01S7/526 , G01S15/89 , G01S15/96
摘要： PURPOSE:To detect a reflected signal from the bottom of water accurately by clearing data in a memory section when the level of a reflected signal received is determined to be less than the level of the data of the memory section exceeding by a specified value. CONSTITUTION:When a transmission trigger pulse is generated, a gate 47 is opened and when the reflected signal received corresponding to the depth of the water bottom previously detected is obtained, the gate 37 is closed. When a comparator 36 determines that the received signal is smaller than the memory data of a memory section 37, the decision output 48 is given to the gate 47. Therefore, as the gate 47 is left open, until the reflected signal received corresponding to the reflected wave from the water bottom previously detected is received after the generation of the trigger pulse, an output 48 which was determined to be smaller on the side of the received signal from the comparator 36 passes by the gate 47 and the contents of the memory section 37 are cleared by the signal. Thus, the reflected signal from the water bottom can be detected accurately.

7. 发明专利

JPS58127187A ECHOE FINDER 失效
公开(公告)号：JPS58127187A
公开(公告)日：1983-07-28
申请号：JP1106982
申请日：1982-01-25
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI , YAMADA TOSHIICHI , MATSUSE TAKAYA
IPC分类号： G01S7/56 , G01N29/44 , G01S7/295 , G01S7/527 , G01S7/536 , G01S7/62 , G01S13/30 , G01S15/96
摘要： PURPOSE:To achieve an easily visible indication with a resonable suppression of noises by detecting and indicating the maximum of digital values of echo waves received at a specified interval. CONSTITUTION:Echo signals received sequentially at a specified interval such as one pixel period or the like is fetched into a CPU31 following an A/D conversion. The CPU31 compares wave signals sequentially received by a process control according to a program of an ROM32 to control the writing updating of larger received signals into an RAM33 whereby the max. value of digital values of echo waves during one pixel period is transferred to a buffer memory 15 through the RAM33. Thus, the echo wave signal the largest in the amplitude is selected as representative signal and indicated thereby enabling resonable suppression of noises and making the indication easy to observe.

8. 发明专利

JPS586151B2 失效
公开(公告)号：JPS586151B2
公开(公告)日：1983-02-03
申请号：JP12172777
申请日：1977-10-11
申请人： KODEN ELECTRONICS CO LTD
发明人： KATAYAMA SUSUMU
IPC分类号： G01S7/62 , G01S7/58 , G01S15/93 , G01S15/96 , G09G5/00

9. 发明专利

JPS57120874A Alarm device for water depth 失效
标题翻译：水深报警装置
公开(公告)号：JPS57120874A
公开(公告)日：1982-07-28
申请号：JP588881
申请日：1981-01-20
申请人： Koden Electronics Co Ltd
发明人： KATAYAMA SUSUMU , KOBAYASHI KENICHI , YAMADA TOSHIICHI , MATSUSE TAKAYA
IPC分类号： G01S15/96 , G01S15/93
CPC分类号： G01S15/93
摘要： PURPOSE:To permit identification of the approach to an intended fishing field and shoals without viewing displayed video by comparing the magnitude of the numerical value of the variable range mark set depth and the numerical value of sea bottom depth, and giving an alarm. CONSTITUTION:The searching range of fish groups or the like is shifted with a shift switch 24 and the scale of depth is digitally displayed with a variable shift mark VRM signal generating circuit 25, so that the depth of the displayee video is read directly. The shift quantity information from the switch 24 and the VRM signal from the circuit 25 are inputted to a scale data processing circuit 26. On the other hand, the figure of the sea bottom depth measured actually with a sea bottom detecting circuit 79 is conducted to a magnitude comparator 57, and is compared with the VRM display depth figure from the circuit 26. Selection is accomplished with a switch 80 to output to an alarm 58 so as to give an alarm when the sea bottom is shallower than the VRM for the prevention of wrecking of ships and when the seam bottom is deeper than the VRM in case that a fishing boat is heading toward the fishing field.
摘要翻译：目的：通过比较可变范围标记集深度的数值和海底深度的数值，并给出报警，允许识别预期捕鱼场和浅滩的方法，而不查看显示的视频。构成：利用移动开关24移动鱼群等的搜索范围，并且利用可变移动标记VRM信号生成电路25数字显示深度刻度，从而直接读取被显示视频的深度。来自开关24的移位量信息和来自电路25的VRM信号被输入到比例数据处理电路26.另一方面，实际上用海底检测电路79测量的海底深度的图形被进行到幅度比较器57，并且与电路26的VRM显示深度图进行比较。选择是通过开关80来实现的，以输出到报警器58，以便当海底比VRM浅，以防止当船只正在向渔场前进时，船舶的沉没和VRM的深度比VRM更深。

10. 发明专利

JPS56162067A ADDITIONAL DEVICE FOR ULTRASONIC DETECTOR 失效
公开(公告)号：JPS56162067A
公开(公告)日：1981-12-12
申请号：JP6592180
申请日：1980-05-20
申请人： KODEN ELECTRONICS CO LTD
发明人： KOBAYASHI KENICHI , KATAYAMA SUSUMU
IPC分类号： H04R1/00 , G01S7/52
摘要： PURPOSE:To connect an additional device simply without remodeling the device provided already, by providing plural reactance elements and diodes of antiparallel connection in the additional device for increment of output. CONSTITUTION:Signal lines are divided into a1, a2, b1, and b2, and an additional device 11 having a booster circuit 3 is connected between them. The output from an ultrasonic transmitter and receiver 1 is amplified by the booster circuit 3 and is supplied to a transmitter and receiver 5. Reactance elements 6, 7, 9 and 10 are provided for impedance matching. The receiving signal from the transmitter and receiver 5 is supplied to the transmitter and receiver 1 through reactance elements 9, 10, 6 and 7. In this case, the booster circuit 3 is disconnected by high-impedance diodes 2 and 4, and the receiving signal is not short-circuited because a diode 8 is high-impedance. Thus, the additional device is connected simply.

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