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1. 发明专利

JP2003174407A TRAIN RADIO SYSTEM 审中-公开
公开(公告)号：JP2003174407A
公开(公告)日：2003-06-20
申请号：JP2001373984
申请日：2001-12-07
申请人： KOKUSAI DENKI ENGINEERING KK
发明人： IGARASHI KEISUKE
IPC分类号： B61L3/12 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To provide a train radio system capable of quickly and surely confirming the transmission of information necessary for an operating task by quickly confirming a response by using a train radio device in simultaneous communication or the like. SOLUTION: In this train radio system constituted so that necessary information can be transmitted through a radio line between a base station and each of a plurality of train radio mobile stations, when simultaneous communication is transmitted from the base station to each of the plurality of train radio mobile stations, at least either ID information specific to each of the plurality of train radio mobile stations or ID information specific to each vehicle on which each of the plurality of train radio mobile stations is mounted is transmitted to the base station by an allocated time slot with a response by a corresponding switch for reply communication from each of the plurality of train radio mobile stations. COPYRIGHT: (C)2003,JPO

2. 发明专利

JPH11208475A TRAIN SENSING DEVICE USING LEAKAGE COAXIAL CABLE 失效
公开(公告)号：JPH11208475A
公开(公告)日：1999-08-03
申请号：JP3228298
申请日：1998-01-30
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , KOKUSAI DENKI ENGINEERING KK
发明人： MOTOHASHI KOJI , SUZUKI MASAO , SUMINO JUNICHI , ISHII IZUMI , YOSHIDA SHUNZO
IPC分类号： B61L3/12 , H04B5/00 , H04B5/02
摘要： PROBLEM TO BE SOLVED: To detect a train running on a track wirelessly without using a rail. SOLUTION: On both sides of a track at a point for train sensing leakage coaxial cables for signal transmission and reception 1 and 3 having a specified length L are stretched along a rail 6 as positioned lower than the rail 6. The transmission frequency is set so that the gap between the floor surface of vehicle and the ground 10 forms a parallel conductor plate line in the resonated condition over the length L when any train has come. In case no train is coming, the transmitted wave is intercepted by the rail 6 to cause the reception level to remain low and when train has come, the transmitted wave is made Q times as large by the conductor plate line in the resonated condition so that the reception level becomes high.

3. 发明专利

JP2000052990A TRAIN APPROACH ALARM RECEIVER 失效
公开(公告)号：JP2000052990A
公开(公告)日：2000-02-22
申请号：JP22430498
申请日：1998-08-07
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , KOKUSAI DENKI ENGINEERING KK
发明人： ARIMORI YUKIO , MOTOHASHI KOJI , SEKI HIROYUKI , YOSHIDA SHUNZO , MATSUMOTO HIDETOSHI , SAWAI KOJI
IPC分类号： B61L23/00 , B61L23/06
摘要： PROBLEM TO BE SOLVED: To enable a train approach alarm receiver carried by a guard of a work area of a train track to detect the failure of transmitter sending out train approach alarms by transmit waves of constant intervals, by alarm sound. SOLUTION: A receiver is provided with a carrier SQ circuit 11, a switch 12, a rectifier 14, cycle judging circuits 13, 15, an alarm sound oscillator 16 and an alarm control part 17. Since modulated radio waves are sent as tone signals at the time of no train and as message signals at the time of the presence of a train at constant intervals from a transmitter, output of the SQ circuit 11 is inputted to the timer 13 to check the interval of intermittent transmission, and when the switch 12 is on, wave detection output is rectified by the rectifier 14, and whether the tone signals or message signals are at constant intervals is checked by the cycle judging circuit 15. The alarm control part 17 judges the failure of the transmitter if a receive level is low or the interval changes from the checked result, and outputs failure alarm sound from a speaker 84.

4. 发明专利

JP2003264715A VIDEO COMPOSITE SYNCHRONIZING SIGNAL SYNTHESIS CIRCUIT 审中-公开
公开(公告)号：JP2003264715A
公开(公告)日：2003-09-19
申请号：JP2002063462
申请日：2002-03-08
申请人： KOKUSAI DENKI ENGINEERING KK
发明人： ARAKI HOTOKU
IPC分类号： H04N5/06
摘要： PROBLEM TO BE SOLVED: To synthesize optimum composite synchronizing signals not to be affected by a video signal output side and a video display equipment side from the vertical and horizontal separate synchronizing signals of video signals. SOLUTION: A circuit synthesizes the optimum composite synchronizing signals from the vertical and horizontal separate synchronizing signals regardless of the kind and individual difference of equipment on the video signal output side or the equipment on the display equipment side. The circuit is provided with the constitution of variably adjusting the delay amount of vertical synchronizing signals by step changeover and continuous fine adjustment so as to cope with the difference of required composite synchronizing signals. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003188756A STRUCTURE FOR PORTABLE RADIO EQUIPMENT 审中-公开
公开(公告)号：JP2003188756A
公开(公告)日：2003-07-04
申请号：JP2001386059
申请日：2001-12-19
申请人： KOKUSAI DENKI ENGINEERING KK
发明人： TAKANO MASAYUKI
IPC分类号： H04B1/38 , H04B1/3822
摘要： PROBLEM TO BE SOLVED: To facilitate assembly by reducing the number of part items, to improve water-proof and dust-proof functions and to improve the reliability of equipment by preventing intrusion of water and dust for an antenna storage part, operating parts such as switch and a case composed of two bodies, by using an integrally molded packing. SOLUTION: An antenna storage part 22 provided outside two cases 21 of the portable radio equipment is formed as a dome-shaped projection elongated in the height direction and provided with a flange part 22a on the lower part thereof. An operation part 23 such as a switch is formed with ruggedness on he outer circumferential surface of the operation part 23 to be fitted with ruggedness formed on the inner circumferential surface of a notched part 21d on the case 21, and respectively equipped with ruggedness on confronted surfaces to join both the cases 21. Ruggedness to be respectively engaged with the ruggedness on the cases 21 is formed on both side faces of a packing 24 to be mounted between both the cases 21. The antenna storage part 22, the operation part 23 and the packing 24 are integrally molded of elastically deformable materials and fitted between both the cases 21. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2003110430A INTERLEAVING APPARATUS AND DEINTERLEAVING APPARATUS 审中-公开
公开(公告)号：JP2003110430A
公开(公告)日：2003-04-11
申请号：JP2001300893
申请日：2001-09-28
申请人： HITACHI INT ELECTRIC INC , KOKUSAI DENKI ENGINEERING KK
发明人： NAITO MASASHI , NITTA YOSHIKI
IPC分类号： G06F11/10 , H03M13/27 , H04L1/00 , H04L27/36 , H04L27/38
摘要： PROBLEM TO BE SOLVED: To provide an interleaving apparatus and a deinterleaving apparatus which is capable of improving burst error resistance of an error-correcting code by enlarging the size of interleaving without lowering performance such as frame synchronization or equalization. SOLUTION: The interleaving apparatus 20 for rearranging inputted data sequences in a digital wireless communication is provided with an interframe interleaving section 201 for performing rearrangement according to a predetermined rule, by using the inputted data sequences for a plurality of frames to perform interleaving between each of the plurality of frames, and a frame making section 202 for adding a unique word indicating a start position of a frame outputted from the section 201 for each frame outputted from the section 201. Also, the same word is used as a unique word to be added for each frame.

7. 发明专利

JP2002185339A RADIATING ELEMENT AND HIGH FREQUENCY ELECTRONIC CIRCUIT BOARD USING THE SAME 失效
公开(公告)号：JP2002185339A
公开(公告)日：2002-06-28
申请号：JP2000377561
申请日：2000-12-12
申请人： KOKUSAI DENKI ENGINEERING KK
发明人： ODAKA CHOICHIRO , SHINDO MASAHIRO , ITO TADASHI
IPC分类号： H04B1/036 , H04B1/04 , H05K1/02 , H05K7/20
摘要： PROBLEM TO BE SOLVED: To provide a means for effectively reducing the temperature increase at the high potential side(hot side) of the signal of a high frequency electronic circuit board such as a large power transmitter. SOLUTION: A high potential side printed wiring conductor 3b whose temperature increase due to self-heating is the largest of the operating element of a high frequency circuit board in which coils L1 and L2 and capacitors C1 and C2 are mounted on a printed circuit board 2 is formed with a coil-shaped radiating element RC whose one edge is soldered and whose other edge is screwed into a case body 1. Thus, it is possible to directly radiate the heat of the high temperature part by heat conductivity.

8. 发明专利

JP2003258749A SHARED BROADCASTING SYSTEM FOR INSIDE OF PASSENGER CARS AND PLATFORM 审中-公开
公开(公告)号：JP2003258749A
公开(公告)日：2003-09-12
申请号：JP2002055329
申请日：2002-03-01
申请人： KOKUSAI DENKI ENGINEERING KK , HITACHI INT ELECTRIC INC , SANAI DENSHI KOGYO KK
发明人： IGARASHI KEISUKE , OSHIMA TAKAO , MATSUMOTO YUJI , INADA ICHIRO , SUGAWARA TOSHINORI
IPC分类号： B61L25/02 , H04H20/00 , H04H20/62 , H04H1/00
摘要： PROBLEM TO BE SOLVED: To provide a shared broadcasting system for the inside of passenger cars and a platform in which the services of broadcasting guidance can be carried out from the crew in the car to passengers on the platform by effectively coupling the broadcasting facilities of two systems individually positioned for the inside of the passenger cars and for the platform. SOLUTION: The broadcasting signal transmission route of an internal broadcasting device positioned in the passenger car and the broadcasting signal transmission route of a platform broadcasting device positioned on the platform are arranged so that they can interconnected by a first radio channel from the passenger car to the platform and a second radio channel from the platform to the passenger car while the relevant passenger car is stopped by the side of the relevant platform or located closely to the platform, and broadcasting contents obtained by the input means of the broadcasting device to be used as a broadcasting source between the internal broadcasting device and the platform broadcasting device are broadcasted from the other broadcasting device as well via at least one of the first radio channel and the second radio channel. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2002271214A TRANSMISSION OUTPUT CONTROL SYSTEM 失效
公开(公告)号：JP2002271214A
公开(公告)日：2002-09-20
申请号：JP2001064394
申请日：2001-03-08
申请人： KOKUSAI DENKI ENGINEERING KK
发明人： YANAGIHARA TATSUJI , ISHIGOOKA TSUKASA , NARITA TAKAHIRO , ODAKA CHOICHIRO , ITO TADASHI
IPC分类号： H03G3/20 , H03G3/30 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To avoid a drawback in that a user is forced to interrupt transmission during transmitting, due to temperature rise caused by self-heating in a small high-power transmitter/receiver. SOLUTION: In a transmission output control system, in which the output level of a transmitting power amplifier 5 is detected by an output detector 4, and the detected level is compared with the reference level by an error amplifier 6 to control a transmission output so that the difference between the levels is reduced, a reference input is varied according to the detected temperature on a high-frequency output circuit board of the amplifier 5. The transmission output level is lowered, when the temperature is high, and is returned to the original output, when the temperature falls.

10. 发明专利

JP2002076958A BASE STATION RECEIVER 失效
公开(公告)号：JP2002076958A
公开(公告)日：2002-03-15
申请号：JP2000265247
申请日：2000-09-01
申请人： KOKUSAI DENKI ENGINEERING KK , HITACHI INT ELECTRIC INC
发明人： SHINDO MASAHIRO , UENO HIDEKATSU , TAKANO MIKIO , HOSHIKAMI HIROSHI , NAGANO TERUBUMI
IPC分类号： H04J13/00 , H04B1/10 , H04B1/707 , H04B7/26 , H04W88/08
摘要： PROBLEM TO BE SOLVED: To improve sensitivity and interference suppression performance of a base station receiver used for CDMA system mobile radio communication in the wide frequency band of the 3rd generation. SOLUTION: A bandwidth of a front-end RF band-pass filter 1 is set as the bandwidth for allowing transmission of only one channel among assigned three to four channels. A low noise amplifier assures a high gain to realize high sensitivity and interference suppression characteristic. As a result, the circuits after the mixer in the next stage have been freed from restriction of noise.

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