专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JPS6388481A ULTRASONIC MEASURING APPARATUS 失效
公开(公告)号：JPS6388481A
公开(公告)日：1988-04-19
申请号：JP23488286
申请日：1986-10-01
申请人： KUBOTA LTD
发明人： KISHIDA HIROSHI
IPC分类号： G01S7/527 , G01S7/536 , G01S15/08
摘要： PURPOSE:To accurately measure the distance up to an object, by providing a reference voltage setting means for setting a reference voltage level to magnitude exceeding a noise level during a time when a transmission part transmits an ultrasonic wave. CONSTITUTION:Control data is outputted to an ultrasonic wave generating circuit 7 from CPU3 through an I/O interface 6 and the ultrasonic wave generated from the circuit 7 is transmitted to an object 21 according to said control data through an amplifier 10 and a transmitter 1. The reflected wave from the object 21 is inputted to a comparator 9 through a receiver 2, an amplifier 12 and a detection circuit 11. At the time of measurement of a distance, CPU3 outputs reference voltage to the comparator 9 through the interface 6 and a D/A converter 8. The reference voltage is compared with a received signal by the comparator 9 and, when the received signal exceeds the reference voltage, detection data is outputted. The reference voltage level in the comparing part of a receiving part can be made large at the time of the transmission of the ultrasonic wave. Therefore, the noise signal generated by the transmission of the ultrasonic wave does not exceed the reference voltage and a distance can be accurately measured.

92. 发明专利

JPS6310796B2 失效
公开(公告)号：JPS6310796B2
公开(公告)日：1988-03-09
申请号：JP5792481
申请日：1981-04-17
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： MASUKO AKINOBU
IPC分类号： H04N5/63 , G01S7/527 , G01S7/536 , G01S13/04 , G01S13/88 , G01S15/06 , H01H35/00 , H04N5/44

93. 发明专利

JPS633267B2 失效
公开(公告)号：JPS633267B2
公开(公告)日：1988-01-22
申请号：JP4701479
申请日：1979-04-16
申请人： KENSETSUSHO DOBOKU KENKYU SHOCHO , TATEISHI DENKI KK
发明人： IIJIMA TAKASHI , CHO KENJI , KADOWAKI TAKAO , KAWANA MASUO , MIKAMI KAZUO , TSUZUKI TERUHIKO , MATSUZAKI MASAKATSU , FUKUSHIMA MASATAKA , KAWASAKI RYOHEI
IPC分类号： G01S15/74 , G01B17/00 , G01S7/527 , G01S7/536 , G01S13/93 , G01S15/93

94. 实用新型

JPS63283U 失效
公开(公告)号：JPS63283U
公开(公告)日：1988-01-05
申请号：JP9331586
申请日：1986-06-20
IPC分类号： G01S7/529 , G01S7/52 , G01S7/526 , G01S7/527 , G01S7/536 , G01S15/10 , G01S7/66

95. 发明专利

JPS62240889A ULTRASONIC SENSOR 失效
公开(公告)号：JPS62240889A
公开(公告)日：1987-10-21
申请号：JP8541086
申请日：1986-04-14
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： AZUMA NAOYA , INOUE HIRONOBU , KATAYAMA SUSUMU , TAKAGI TOSHIMASA
IPC分类号： G01S15/87 , G01S7/527 , G01S7/536 , G01S15/04
摘要： PURPOSE:To prevent incorrect information due to changes in environmental conditions and the like by providing a first detection means for detecting the presence of an object to be detected in a detecting area and a second detection means for continually detecting the object to be detected in an area larger the detecting area. CONSTITUTION:A receiving unit 112 is provided as a second detection means in addition to a receiving unit 111 as first detection unit. By making the amplification factor of the amplifier circuit 52 in the receiving unit 112 larger than that of an amplifier circuit 51, the width of a detecting area is enlarged. Further, by making a time during which the gate of a signal processing circuit 72 is opened longer than a time during which the gate of a signal processing circuit 71 is opened, the range of the detecting area in the direction of a distance is enlarged. Accordingly, since the distribution between both areas is facilitated by continually detecting the enlarged area of the receiving unit 112, incorrect information due to changes in various environmental conditions is prevented.

96. 发明专利

JPS62220889A ULTRASONIC DETECTING DEVICE 失效
公开(公告)号：JPS62220889A
公开(公告)日：1987-09-29
申请号：JP6354186
申请日：1986-03-20
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HAYASHI MASAYUKI
IPC分类号： G01S7/526 , G01S7/52 , G01S7/527 , G01S7/536 , G01S15/04
摘要： PURPOSE:To improve a noise removal rate by judging only a wave which has small pulse variation in a received signal to be a reflected wave. CONSTITUTION:An ultrasonic wave which is sent by an ultrasonic wave sender 4 and reflected by an obstacle 0 is received by an ultrasonic wave receiver 5. The output of the ultrasonic wave receiver 5 is inputted to a pulse width measuring circuit 9 through an amplifying circuit 6, a filter circuit 7, a waveform shaping circuit 8, and an AND gate 14 to measure the pulse width of the received signal. This pulse width is stored in a storage circuit 10. A comparing circuit 11 compares the measured value with the numeral stored in the storage circuit 10 and outputs a detection signal if the comparison difference is less than a certain value.

97. 发明专利

JPS62187274A ULTRASONIC SWITCH 失效
公开(公告)号：JPS62187274A
公开(公告)日：1987-08-15
申请号：JP2943986
申请日：1986-02-13
申请人： FUJI ELECTRIC CO LTD
发明人： TANIGAWA KIYOSHI , NAKAJIMA SHINICHI
IPC分类号： G01S7/527 , G01S7/536 , G01S15/04 , G01S15/18
摘要： PURPOSE:To decide securely whether or not an object body is present without any malfunction due to a noise and to obtain a stable detection output by comparing the counted value of clock pulses with a set value and deciding whether or not the counted value is within an effective range. CONSTITUTION:A pulse train intermitting means 2 intermits a pulse train transmitted by an ultrasonic sending means 1 at a constant period and a time detecting means 3 detects the time from the transmission of an ultrasonic wave pulse by the sending means 1 to the arrival of the pulse train at the ultrasonic oscillator of the sending means 1 after reflection by the object body. A time setting means 8 generates a set value including a permissible error range based on the detected time detected by the detecting means 3. Then, a presence/ absence deciding means 4 compares the output of a detecting means 3 with the set value set by a setting means 8 at every period of the intermitting means 2 to decide whether the output is within an effective range or not, thereby storing the result in a storage means 5. When a effective decision result is stored in the storage means by prescribed times continuously, a deciding means 6 sends a presence signal to drive a switch circuit 7.

98. 发明专利

JPS62172284A ULTRASONIC MATTER DETECTOR 失效
公开(公告)号：JPS62172284A
公开(公告)日：1987-07-29
申请号：JP1501686
申请日：1986-01-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： TAKAGI TOSHIMASA , INOUE HIRONOBU , AZUMA NAOYA
IPC分类号： G01S7/527 , G01S7/536
摘要： PURPOSE:To positively detect invading matter by securing a wide detection area, by detecting preliminarily present stationary matter and setting only the area of said matter as a non-sensitive area to remove the same from a detection area. CONSTITUTION:The reflected ultrasonic wave receiving output by an ultrasonic transmitting-receiving sensor 1 is processed by an amplifying detection circuit 3 and a detection circuit 4 and the informations of the distance and direction of preliminarily present stationery matter are outputted from a signal processing circuit 5. A non-sensitive area setting circuit 6 sets the narrow area corresponding to the stationary matter as a non-sensitive area from said informations to remove the same from a detection area. Therefore, a wide detection area is secured and only the invading matter can be surely detected.

99. 发明专利

JPS62163989A SONAR 失效
公开(公告)号：JPS62163989A
公开(公告)日：1987-07-20
申请号：JP576486
申请日：1986-01-14
申请人： NEC CORP
发明人： KAWAMURA MASAO
IPC分类号： G01S7/527 , G01S7/536
摘要： PURPOSE:To display the signal of an object so as to be capable of easily discriminating the same from other signals, by a method wherein a timewise phase difference signal is converted to a phase difference signal to frequency and discriminating the phase difference signal to frequency equal to or less than predetermined frequency and equal to or more than a predetermined level from the other signal as the signal of the object. CONSTITUTION:The signal received by a first receiver 1 and the signal received by a second receiver 2 are sent to a correlation device 3 and receive correlation processing to calculate a phase difference signal phi. This phase difference signal phi is the function of the incident angle phi of a plane wave and sent to a memory 4 to be temporarily stored therein as a time series signal. In the memory 4, a time width T is made constant while a delivery range is timewise shifted by T and repeatedly sent to a Fourier transformer 5 which in turn performs frequency analysis at every time series signal of the time width T. The frequency spectrum 105 of the output of the Fourier transformer 5 is sent, to a threshold value judge device 6. The threshold value judging device 6 judges whether the sent signal frequency spectrum has a value equal to or less than certain frequency and equal to or more than a predetermined level and outputs said spectrum.

100. 实用新型

JPS6271581U 失效
公开(公告)号：JPS6271581U
公开(公告)日：1987-05-07
申请号：JP16356485
申请日：1985-10-24
IPC分类号： G01S7/523 , E05F15/20 , G01S7/52 , G01S7/526 , G01S7/527 , G01S7/536 , G01S15/04 , H01H37/00 , H03K17/94 , G01S7/66

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式