专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0772892A DEVICE FOR VOICE RECOGNITION 失效
公开(公告)号：JPH0772892A
公开(公告)日：1995-03-17
申请号：JP21840993
申请日：1993-09-02
申请人： NIPPON DENSO CO
发明人： AKAHORI ICHIRO , FURUHATA KEIJI , SATO TATSUYA
IPC分类号： G10L15/10 , G10L15/14 , G10L3/00
摘要： PURPOSE:To provide a voice recognition device furthermore improving a word recognition rate. CONSTITUTION:A sound input is supplied to a characteristic extraction part 13 together with a sound section detection part 11, and the time sequence of a characteristic parameter of an input sound section is extracted, and the similarity is found by a similarity adding part 13 based on a madel stored in an HMM storage part 14. To the similarity obtained in such a manner, a correction amount dealing with respective words stored in a correction amount storage part 16 is added in a correction adding part 15, and the maximum similarity of the corrected similarity is decided by a word decision part 17, and the recognition result of word is obtained.

2. 发明专利

JPS6176740A Electronically controlled type fuel injection device for diesel engine 失效
标题翻译：用于柴油发动机的电子控制型燃油喷射装置
公开(公告)号：JPS6176740A
公开(公告)日：1986-04-19
申请号：JP19824984
申请日：1984-09-20
申请人： Nippon Denso Co Ltd
发明人： AKAHORI ICHIRO , SHIOZAKI MAKOTO
IPC分类号： F02B3/06 , F02D35/00 , F02D41/00 , F02D41/14 , F02D41/40
CPC分类号： F02D35/0007 , F02B3/06 , F02D41/1401 , F02D41/407 , F02D2041/1415 , F02D2041/143 , F02D2041/1433 , F02D2041/2034 , Y02T10/44
摘要： PURPOSE:To obtain a high-speed, highly accurate and extremely high-stable servo-operation, by providing, in a positional servo, a shortest time control means for changing predetermined parameters used in computation of shortest time control in accordance with the temperature of lubrication oil. CONSTITUTION:A positional servo 3 controls an actuator 82 such that a desired position Pr is coincident with an actual position P of the fuel adjusting member 83 which is detected by an actual position detector 84. A shortest time control section 7 calculates a deviation PE between the desired position Pr and an actual position P, a current I running through the actuator 82 and a control input U for a controlled object 8 in accordance with an estimated speed value V which is estimated by a speed estimating means 9 and the temperature T of lubrication oil. Thus, it is possible to provide a high-speed, highly accurate and extremely high-stable servo-operation.
摘要翻译：目的：为了获得高速，高精度和极高稳定性的伺服操作，通过在位置伺服中提供最短时间控制装置，用于根据最短时间控制计算中使用的预定参数，根据润滑油。构成：位置伺服3控制致动器82，使得期望位置Pr与由实际位置检测器84检测到的燃料调节构件83的实际位置P一致。最短时间控制部7计算期望位置Pr和实际位置P，根据由速度估计装置9估计的估计速度值V和通过致动器82运行的电流I和受控对象8的控制输入U，以及温度T 润滑油。因此，可以提供高速，高精度和极高稳定性的伺服操作。

3. 发明专利

JPH07115370A HIGH SPEED VECTOR QUANTIZER AND HIGH SPEED VECTOR QUANTIZING METHOD 失效
公开(公告)号：JPH07115370A
公开(公告)日：1995-05-02
申请号：JP28592193
申请日：1993-10-18
申请人： NIPPON DENSO CO
发明人： SATO TATSUYA , AKAHORI ICHIRO , FURUHATA KEIJI , SATO HIDEKI
IPC分类号： H03M7/30
摘要： PURPOSE:To provide the vector quantizer and the vector quantizing method, by which a code vector of the minimum distortion is obtained, and the data processing capacity is improved. CONSTITUTION:The figure shows a block diagram of the high speed vector quantizer, consists of a retrieval control means 1b having a distance calculating circuit 1g of an exclusive IC, and a code book(CB) 1a, and the CB 1a is a ROM having a node dividing condition of a bisected tree structure up to an m-th stage. By using a reduced multi-dimensional tree, the divided area is reduced more remarkably. To which vector of the CB 1a an input vector 1h is the nearest is compared with a square value of a distance by a infinity norm to an area formed by each node, after following a bisected tree and deriving a temporary solution, all the nodes are checked, and in the end, a result if outputted from a back track control part 1c. A calculation of the infinity norm distance is only subtraction and a square operation, a square root calculation containing a floating point is not required, and the calculation can be saved considerably, compared with deriving a Euclidean distance and executing the comparison.

4. 发明专利

JPH04228372A REAR WHEEL STEERING ANGLE CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JPH04228372A
公开(公告)日：1992-08-18
申请号：JP13144191
申请日：1991-06-03
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： HASEDA TETSUSHI , TSUZUKI YOSHIHIKO , AKAHORI ICHIRO , INOUE HIDEO , TAKEDA OSAMU
IPC分类号： B62D6/00 , B62D101/00 , B62D113/00 , B62D117/00 , B62D137/00
摘要： PURPOSE:To remove a spear-shaped nozzle superposed on a yaw rate signal with simple structure without causing the phase delay of the signal by providing a digital filter for holding the output value at the time of the rate-of-change of the input value of yaw rate signals inputted from a yaw rate sensor being larger than the set value. CONSTITUTION:An analog buffer 22 takes in signals from a rear wheel steering angle sensor 12 and a yaw rate sensor 18, an A/D converter 23 performs analog digital conversion, and a driving circuit 24 supplies a direct current servo motor 2 with a current corresponding to a current command signal If from a microcomputer 19. The microcomputer judges, on the basis of the signal from the yaw rate sensor 18, whether the absolute value of the difference between the present yaw rate input value uj and the preceding yaw rate uj-1 is larger than the present value (a), and outputs the preceding yaw rate output value yj-1 as the present yaw rate yj when the absolute value of the difference is larger than the preset value (a).

5. 发明专利

JPH01171066A CONTROL SYSTEM DESIGN SUPPORTING DEVICE 失效
公开(公告)号：JPH01171066A
公开(公告)日：1989-07-06
申请号：JP33331987
申请日：1987-12-25
申请人： NIPPON DENSO CO , HARA TATSUJI
发明人： AKAHORI ICHIRO , HARA TATSUJI
IPC分类号： G05B17/02 , G06F17/50
摘要： PURPOSE:To analyze the characteristic of respective parts of a control system under the same design environment as the actual one and to improve a design work efficiency by inputting a characteristic related to an input output, communication characteristic data and a coupling condition and executing the dummy measurement. CONSTITUTION:At the time of inputting through a control system data input means M1, the communication characteristic data for control equipment are stored into a communication element storing means M2 and the coupling condition is hierarchized for a coupling element and stored into a coupling information storing means M3. The communication characteristic data calculated by a communication characteristic calculating means M4 are stored for respective coupling elements into the coupling information storing means M3. When the characteristic to be measured through a measurement object setting means M6 and the measurement object are designated, a dummy measuring means M5 calculates the characteristic designated based on the communication characteristic data and the calculating result is displayed through a displaying means M8 to a display device M7 together with the constitution of the control system. Thus, the parameter change of respective parts of the control system is facilitated and the desired measurement data can be known quickly after the change.

6. 发明专利

JPH0378474A CONTROL CIRCUIT FOR ULTRASONIC MOTOR 失效
公开(公告)号：JPH0378474A
公开(公告)日：1991-04-03
申请号：JP21374589
申请日：1989-08-19
申请人： NIPPON DENSO CO
发明人： TAKEDA KEIZO , AKAHORI ICHIRO , NAKANO YOSHIHISA
IPC分类号： H02N2/00
摘要： PURPOSE:To drive a motor efficiently by providing a displacement sensor and a sweep means and making the reference frequency follow the resonance frequency. CONSTITUTION:A ultrasonic motor comprises a stator where a piezoelectric element is adhered to an elastic body, and a control circuit 1. The control circuit 1 applies AC voltage onto the piezoelectric element 2 and comprises a determining means 3, a sweep means 4, a drive means 5, and a comparing means 6. The section at the segment electrode 2d of the piezoelectric body 2 is employed as the displacement sensor for the elastic body. Reference frequency determined through the determining means 3 is modified, within a predetermined range, through the sweep means 4 and applied onto the piezoelectric body 2. Further, the sensor output at this time is fed to the comparing means 6 and the reference frequency is increased or decreased to match with the resonance frequency through the determining means 3.

7. 发明专利

JPH0222799A ACOUSTIC RECOGNIZING DEVICE 失效
公开(公告)号：JPH0222799A
公开(公告)日：1990-01-25
申请号：JP17338788
申请日：1988-07-12
申请人： NIPPON DENSO CO
发明人： NAKAMURA TETSUYA , TAKAMI MASAYUKI , AKAHORI ICHIRO
IPC分类号： G08G1/0965
摘要： PURPOSE:To cause the title device to accurately recognize sounds even when the frequency of the sounds changes as time elapses by recognizing the sounds from the shape of frequency characteristics of the sounds associated with hourly changes. CONSTITUTION:Detected sounds are converted into acoustoelectric signals by means of an acoustoelectric converter M1 and checked by a frequency analyzing means M2 for hourly frequency characteristics. A peak extracting means M3 extracts peaks of the frequency characteristics at every hour from the hourly given frequency characteristics. The peak information is divided into groups at every hourly continuous group by means of a grouping means M4. The grouped peak information is inputted to a feature quantity extracting means M5 and the means 5 extracts the feature quantity of the characteristic shape of the continuous peak groups. The information of the feature quantity is inputted to an identifying means M6 and prescribed sounds are recognized based on the feature quantity and the reference feature quantity of the acoustic signals to be recognized stored in a reference feature quantity storing means M7.

8. 发明专利

JPS61171618A SPEED CONTROL DEVICE FOR ENGINE VEHICLE EQUIPPED WITH STEPLESS TRANSMISSION 失效
公开(公告)号：JPS61171618A
公开(公告)日：1986-08-02
申请号：JP1103685
申请日：1985-01-25
申请人： NIPPON DENSO CO
发明人： MORI HOMARE , YASUURA NOBUSHI , SHIOZAKI MAKOTO , AKAHORI ICHIRO
IPC分类号： B60K31/02 , B60K20/00 , B60W30/00 , F16H61/02 , F16H63/40
摘要： PURPOSE:To enable a constant speed running to be accomplished by configurating a device in such a manner that a required quantity of fuel and a required change gear ratio are determined based on both an engine necessary horse power which is computed on the basis of a deviation of an actual speed, and the actual speed so as to control a fuel feed device and the transmission. CONSTITUTION:An actual speed NW from a speed sensor 5, and a target speed NWC from a target speed command device 6 are inputted into No.1 arithmetic circuit 8 of a control device 7. An engine necessary horse power is computed based on the computed difference between the actual speed NW and the target speed NWO and then is inputted into No.2 arithmetic circuit 9 computes the obtained data together with the actual speed NW and determines a required change gear ratio (e) and a required quantity of fuel Q, signals for which are then outputted to the stepless transmission 3 and a fuel feed device 2 respective ly in controlling both the engine 1 and the transmission 3 so as to maintain a constant speed. This configuration enables a constant speed running to be accomplished.

9. 发明专利

JPH0798598A SOUND RECOGNIZING DEVICE 失效
公开(公告)号：JPH0798598A
公开(公告)日：1995-04-11
申请号：JP24151793
申请日：1993-09-28
申请人： NIPPON DENSO CO
发明人： FURUHATA KEIJI , AKAHORI ICHIRO , SATO TATSUYA
IPC分类号： G10L15/14 , G10L3/00
摘要： PURPOSE:To provide a sound recognizing device which can reduce memory capacity, for example, a device which can be effectively applied to a sound dial telephone and the like. CONSTITUTION:An input voice is inputted to a feature sampling section 11, and time series of feature parameters is outputted. In a voice learning mode, an output from the feature sampling section 11 is sent to a parameter deciding section 13 through a switch 12, parameters of each registered word to be recognized are decided, similarity between parameters is calculated while similar parameters are integrated in a compression section. And this compressed HMM parameter is held by a holding section 15. At the time of recognition, an output from the feature sampling section 11 is sent to a likelihood calculating section 16 through the switch 12, likelihood of each word is calculated in accordance with the stored HMM parameter, and a word having the highest likelihood in a word deciding section is outputted as a recognizing word.

10. 发明专利

JPS6176739A Electronically controlled type fuel injection device for diesel engine 失效
标题翻译：用于柴油发动机的电子控制型燃油喷射装置
公开(公告)号：JPS6176739A
公开(公告)日：1986-04-19
申请号：JP19758884
申请日：1984-09-19
申请人： Nippon Denso Co Ltd
发明人： AKAHORI ICHIRO , SHIOZAKI MAKOTO
IPC分类号： F02B3/06 , F02D35/00 , F02D41/00 , F02D41/14 , F02D41/40
CPC分类号： F02D41/1401 , F02B3/06 , F02D35/0007 , F02D41/407 , F02D2041/1415 , F02D2041/143 , F02D2041/1433 , F02D2041/2034 , Y02T10/44
摘要： PURPOSE:To obtain a high-speed, highly accurate and highly stable servo- operation, by providing such an arrangement that in a positional serve for computing a control input value for an actuator which adjusts the amount of fuel injection, there is provided a shortest time control means for determining the control input value. CONSTITUTION:A fuel injection amount computing section 2 delivers a desired value Pr of a fuel adjusting member 83 in a fuel injection pump 5. In a positional servo 3 an actuator 82 is controlled such that the desired position Pr is coincident with an actual position P of the fuel adjusting member 83 which is detected by an actual position detector 84. A shortest time control section 7 calculates a deviation PE between the desired position Pr and an actual position P, a current I running through the actuator 82 and a control input U for a controlled object 8 in accordance with an estimated speed value V which is estimated by a speed estimating means 9. Thus, since a dynamic and nonlinear model is used for the controlled object, it is possible to provide a high-speed, highly accurate and highly stable servo-operation.
摘要翻译：目的：为了获得高速，高精度和高度稳定的伺服操作，通过提供一种这样的布置，即在用于计算调节燃料喷射量的致动器的控制输入值的位置中，提供了最短的用于确定控制输入值的时间控制装置。构成：燃料喷射量计算部2在燃料喷射泵5中输送燃料调节部件83的期望值Pr。在位置伺服机构3中，控制致动器82，使得期望位置Pr与实际位置P一致通过实际位置检测器84检测到的燃料调节构件83.最短时间控制部7计算期望位置Pr和实际位置P之间的偏差PE，通过致动器82的电流I和控制输入U 用于根据由速度估计装置9估计的估计速度值V的受控对象8.因此，由于对受控对象使用动态和非线性模型，因此可以提供高速，高精度和高度稳定的伺服操作。

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