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

JPH07311545A FINGER LANGUAGE INTERPRETATION DEVICE 失效
公开(公告)号：JPH07311545A
公开(公告)日：1995-11-28
申请号：JP10109794
申请日：1994-05-16
申请人： HITACHI LTD , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： SAGAWA HIROHIKO , OKI MASARU , OHIRA EIJI
IPC分类号： G09B21/00
摘要： PURPOSE:To provide a finger language interpretation device which enables a user to input finger language in a finger language sentence unit and to recog nize the finger language with good accuracy even if person to input the finger language changes or posture to make the finger language changes. CONSTITUTION:The time of the boundary of finger language words composing a finger language sentence is detected in a boundary detector 3. This boundary detector 3 sends a detection signal d2 to a finger language data memory device 4 when the detector detects the boundary of the finger language words. The normalized finger language data sent from a normalizing device 2 is previously stored in the finger language data memory device 4 which sends the finger language data stored thus far to a finger language recognizer 5 when the detection signal d2 is set to the memory device. What finger language is the inputted finger language is recognized in this finger language recognizer 5 by using the finger language data of every finger language word inputted from the finger language memory device 4 and the finger language word data stored in a finger language word dictionary 6. The recognized results are sent to an output device 7 and are outputted in the form of characters and voices.

2. 发明专利

JPH07334368A KNOWLEDGE BASE SYSTEM AND RECOGNITION SYSTEM 失效
公开(公告)号：JPH07334368A
公开(公告)日：1995-12-22
申请号：JP12596394
申请日：1994-06-08
申请人： HITACHI LTD , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： SAKURAI AKIHITO
IPC分类号： G06K9/72 , G06F9/44 , G06K9/62 , G06N5/02 , G06N5/04 , G10L15/08 , G10L15/18 , G10L15/28 , G10L3/00
摘要： PURPOSE:To maintain resistance against ambiguity/noise for a knowledge expression system, in which the relation of cause and effect does not exist, by providing a minimum cost tree by introducing cost expressing the good quality of consistency among the components of a knowledge base. CONSTITUTION:At a finger language translating device, meaning word groups and the cost expressing the good quality of consistency are applied to word group/cost correspondence tables 130 and 135. Based on these correspondence tables 130 and 135, a minimum tree solving part 125 finds out the best analysis for one word string candidate applied from a minimum cost analystic calculating part 120 while using a high-step graph. At such a time, the minimum cost analystic calculating part 120 operates the device shown by the minimum tree solving part 125 for each word storing candidate and finds out the word group division at the minimum cost for each word string candidate. At a minimum cost candidate selecting part 140, the values calculated by the processing parts 120 and 125 are compared and the best candidate is selected out of the word string candidates. At a Japanese translating part 145, a Japanese expression is performed based on the best analysis of the calculated word string candidate.

3. 发明专利

JPH07177087A OPTICAL CONNECTOR FOR PLANAR OPTICAL FUNCTION ELEMENT 失效
公开(公告)号：JPH07177087A
公开(公告)日：1995-07-14
申请号：JP31788393
申请日：1993-12-17
申请人： NEC CORP , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： ARAKI SOICHIRO
IPC分类号： G02B6/00 , G02B27/28 , G02F1/35 , G02F3/02 , H04B10/27 , H04B10/80 , H04B10/02
摘要： PURPOSE:To provide a small-sized optical connector for planar optical function element which has a high optical use efficiency. CONSTITUTION:This device consists of reflection mirrors 13 to 15, quarter-wave plates 16 to 18, polarization beam splitters 19 to 21, quarter-wave plates 24 to 26, and VSTEP elements 27 to 29, and images are formed between VSTEP elements by image forming lenses 22 and 23. VSTEP elements consists of light emitting parts 30 to 32, first light reception parts 33 to 35, and second light reception parts 36 to 38 respectively. Output signal light 101 emitted from the light emitting part 31 of the VSTEP element 28 has the plane of polarization converted by the quarter-wave plate 25 and is separated into input light 102 and 103 of the same light intensity to the next stage and the preceding stage by the polarization beam splitter 20. Input light 102 and 103 have planes of polarization converted by quarter-wave plates 18 and 17 and reflection mirrors 15 and 14 and are connected to the next stage and the preceding stage by polarizing beam splitters and image forming lenses and are made incident on the first light reception part 35 of the VSTEP element 29 and the second light reception part 36 of the VSTEP element 27 respectively, and thus, cascading and bidirectional communication between planar optical function elements are possible.

4. 发明专利

JPH07321405A SURFACE EMITTING SEMICONDUCTOR LASER AND ITS CONTROL METHOD 失效
公开(公告)号：JPH07321405A
公开(公告)日：1995-12-08
申请号：JP11576994
申请日：1994-05-30
申请人： GIJUTSU KENKYU KUMIAI SHINJIYO , FUJITSU LTD
发明人： SHOJI HAJIME
IPC分类号： H01S5/00 , H01S5/042 , H01S5/062 , H01S5/183 , H01S3/18
摘要： PURPOSE:To obtain a surface emitting semiconductor laser in which a polarizing face can be controlled electrically in a definite direction by a method wherein a substrate-side electrode having an opening part emitting a laser beam is formed on the side of a substrate, a central electrode is formed on the side of a reflecting film and a circumferential electrode is formed around it directly above an active layer. CONSTITUTION:An n-side electrode 6 having an opening part 5 is formed on the side of a substrate 1 by using an AuGe/Au multilayer film. As electrodes on the side of a reflecting film 3, a central electrode 7 and a circumferential electrode 8 are formed directly above an active layer 4 by using an AuZn/Au multilayer film. For example, when a current is made to flow across a central electrode 7 and a substrate-side electrode 6 and, at the same wime, a current is made to flow across one circumferential electrode 80 and the substrate-side electrode 6, the polarization direction of the emitted beam of light can be controlled in a direction in which the central electrode 7 is connected to the center of the circumferential electrode 80. Consequently, a polarizing face can be decided in a prescribed direction in a surface emitting semiconductor laser, and the polarizing face can be changed to an arbitrary direction when it is controlled electrically.

5. 发明专利

JPH07263792A SURFACE LIGHT EMISSION SEMICONDUCTOR LASER AND ITS MANUFACTURE 失效
公开(公告)号：JPH07263792A
公开(公告)日：1995-10-13
申请号：JP4892794
申请日：1994-03-18
申请人： GIJUTSU KENKYU KUMIAI SHINJIYO , FUJITSU LTD
发明人： SHOJI HAJIME
IPC分类号： H01S5/00 , H01S3/18
摘要： PURPOSE:To readily manufacture a surface light emission semiconductor laser whose characteristics, reliability and producibility are improved with high controllability. CONSTITUTION:A semiconductor current block layer 4 and a mask dielectric film for selective formation are formed one by one, the dielectric film and the current block layer 4 are selectively removed to form an opening part in a region which becomes a laser resonator. Then, the current block layer 4, a first clad layer 8, active layers 9, 10, 11 and a second clad layer 12 are formed one by one inside the opening part using the dielectric film as a mask.

6. 发明专利

JPH07250035A OPTICAL RECEIVER 失效
公开(公告)号：JPH07250035A
公开(公告)日：1995-09-26
申请号：JP4263694
申请日：1994-03-14
申请人： TOSHIBA CORP , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： UENISHI KATSUJI
IPC分类号： H01L31/10 , H04B10/00 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/67 , H04B10/80 , H04B10/28 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26
摘要： PURPOSE:To provide the optical receiver for providing a signal logically synthesizing an optical signal to be made incident on a photodetecting element array without increasing the number of wires such as pull-out wires from the photodetecting element array. CONSTITUTION:Concerning this optical receiver for which a photodiode array 14-ij is formed on a substrate 10, each terminal is connected by an induced common connecting wire 17, terminal resistors 21 and 22 are connected to each of respective terminals of photodetecting elements at both the terminal parts of the photodiode array and further, the signal logically synthesizing plural amplitude modulated optical signals 27 made incident from one terminal of the common connecting wire 17 on the photodiode array is detected through a waveform shaping circuit 25, an LC circuit network provided with a fixed characteristic impedance is composed of the photodiode array and the common connecting wire and further, the value of the terminal resistors 21 and 22 is made equal with the characteristic impedance of the LC circuit network.

7. 发明专利

JPH07170538A CONNECTION ELEMENT AND DEVICE 失效
公开(公告)号：JPH07170538A
公开(公告)日：1995-07-04
申请号：JP31461093
申请日：1993-12-15
申请人： NEC CORP , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： KAWAI SHIGERU
IPC分类号： H04J14/00 , H04B10/00 , H04B10/27 , H04J14/02 , H04Q3/52 , H04B10/02
摘要： PURPOSE:To realize a crossbar switch through the use of a wavelength multiplex technology and to obtain a self-routing network with less delay by using the crossbar switch. CONSTITUTION:The device is constituted of a monochroic light source 1, an optical bus 2, a light receiving element array 3, a fixed wavelength selecting element 4, a light source drive circuit 5, a signal amplifier circuit 6 and a digital circuit 7 used to decode an address of a light receiving signal. A signal is received by the light source drive circuit 5, photoelectric-converted by the monochroic light source 1 and the resulting signal propagates inside the optical bus 2. An optical signal with plural wavelengths is propagated inside the optical bus 2 and the wavelength selecting element 4 separates each signal of respective wavelength propagated in the optical bus 2 and the separated signal is made incident onto the light receiving element array 3. The received signal is amplified by the signal amplifier circuit 6 and the digital circuit 7 decodes an address signal.

8. 发明专利

JPH07326813A OPTICAL SWITCH 失效
公开(公告)号：JPH07326813A
公开(公告)日：1995-12-12
申请号：JP11732694
申请日：1994-05-31
申请人： GIJUTSU KENKYU KUMIAI SHINJIYO , FUJITSU LTD
发明人： OTSUBO KOJI
IPC分类号： H01S5/00 , H01S3/18
摘要： PURPOSE:To make possible high speed modulation wherein extinction ratio is high and wavelength chirp does not exist, by arranging a polarizing element at a position where the emitted light of a surface emitting semiconductor laser is blocked, in the manner in which the emitted light permeates the element at a specified injection current value. CONSTITUTION:A polarizing element 2 is so arranged behind the light emitting surface of a surface emitting semiconductor laser 1 that the light in the polarization direction at the time of oscillation start of the surface emitting semiconductor laser 1 can permetate the polarizing element 2. When the current value is changed from the current value I1 before 90 deg. rotation of polarized wave is generated to the current value I2 after the rotation has been generated, the light permeating the polarizing element 2 is extinguished. When the current value is inversely changed from the value I2 to the value I1, the light permeates the polarizing element 2. Hence the ON/OFF of the light with very high extinction ratio is possible by a very narrow current driving range. The period of ON/OFF of the light can be inverted by setting the polarizing element 2 in the manner in which the light polarized vertically to the above direction permeates the element.

9. 发明专利

JPH07311756A NEURO CONTROLLER 失效
公开(公告)号：JPH07311756A
公开(公告)日：1995-11-28
申请号：JP10363894
申请日：1994-05-18
申请人： HITACHI LTD , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： OBUCHI YASUNARI , MASUI HIRONARI , OKI MASARU
IPC分类号： G06G7/60 , G06F15/18 , G06N3/00 , G06N3/08
摘要： PURPOSE:To obtain nearly the best solution by providing an importance degree control means which sets the weight value of combination in a group according to found importance and controls the speed of convergence of output value of each neuron in the group. CONSTITUTION:A combination weight value and initial output value setting part 110 is provided with an importance degree decision and control part 112 which optionally adjusts the extent of combination in groups, and the speed of convergence of output values of neurons in the respective groups is adjusted. Then, the importance degree decision and control part 112 which adjusts the speed of convergence of output values of neurons of the whole network determines the degree of importance of each group on the basis of the extent of combination between groups. For example, when one group is aimed at, the maximum value among weight values of combination between the neurons in the group and neurons in other groups is judged as the degree of importance of the group. The value is set to the weight value of combination connecting the neurons in the group and neurons which belong to the more important group are converged faster.

10. 发明专利

JPH07263783A OPTICAL WIRING DEVICE 失效
公开(公告)号：JPH07263783A
公开(公告)日：1995-10-13
申请号：JP5417094
申请日：1994-03-24
申请人： SANYO ELECTRIC CO , GIJUTSU KENKYU KUMIAI SHINJIYO
发明人： ISHIKAWA TORU , IBARAKI AKIRA
IPC分类号： G02B6/12 , H01S3/10 , H01S5/022
摘要： PURPOSE:To provide an optical bus which enables an easy modification of a course of light propagation. CONSTITUTION:The title device has a plane optical waveguide board 1 and a plurality of reflection members 2 to 5 for reflecting light injected to the optical waveguide board 1. Two reflection members are constituted of light modulation elements 3a, 3b which can change optical absorption spectrum.

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