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公开(公告)号：JPH0619708A
公开(公告)日：1994-01-28
申请号：JP17224592
申请日：1992-06-30
Applicant: NEC CORP
Inventor： UCHIDA KAORU
IPC: G06F9/38
Abstract: PURPOSE:To analyze the position of an instruction by which data fetched by a load instruction is used, to delay an execution instruction string switching operation synchronized with the execution of the load instruction and to prolong continuous execution sequence length. CONSTITUTION:An arithmetic processing part 10 refers to a program memory 15 in an instruction string control part 14 and proceeds a processing while it refers to and updates a register group 11. At the time of loading data from an external memory to a register, a token including a target instruction address 66 in the load instruction in the program memory 15 is generated in a token generation part 12, and the token is issued to a memory access controller. An instruction string interrupts execution by sequence end flags 65 in respective instructions. The token returned from an external part stands by in a token memory 13 and it is inputted to the arithmetic processing part 10 by the control of the instruction string control part 14 when one's turn comes. Then, the execution of the preceding instruction string is continued. The position of the target instruction used at the time of compiling is analyzed and a position for interruption is decided.
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公开(公告)号：JPH05303493A
公开(公告)日：1993-11-16
申请号：JP10807192
申请日：1992-04-27
Applicant: NEC CORP
Inventor： UCHIDA KAORU
IPC: G06F9/38
Abstract: PURPOSE:To proceed processing without decreasing processing performance by switching instruction trains during the execution of processing other than an arithmetic processor and executing the processing of another instruction train. CONSTITUTION:The arithmetic processing part 10 for executing arithmetic processing proceeds its processing while referring to and updating a register group 11. In the case of executing another processing at the external, a token forming part 12 prepares a token from an instruction in the processing part 10 and the value of a program counter, and the part 12 issues the prepared token to a memory access controller 2 and fetches a token expressing another instruction tain from a token memory 13 for successively storing tokens like an FIFO to process it. A token returned from the external is queued in the memory 13 and inputted to the processing part 10 at its turn under the control of an instruction train control part 14 to continue the execution of the preceding instruction train.
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公开(公告)号：JPH02282875A
公开(公告)日：1990-11-20
申请号：JP10340189
申请日：1989-04-25
Applicant: NEC CORP
Inventor： UCHIDA KAORU
IPC: G06F15/82
Abstract: PURPOSE:To obtain a subroutine mechanism that can be called from plural places by producing a token containing the result data, the module number to serve as a return destination and the link table address out of paired tokens. CONSTITUTION:An output token converter 21 contains an input token register 22, a bus token table 23, a conversion controller 24, a data part register 25, and the multiplexers 26 and 27. When the paired tokens received from an internal bus are converted into the output tokens at output of the paired tokens, the module numbers, the address parts of a link table, and the data parts that should be owned by the output tokens are selectively deformed. In this process applying a subroutine transformation method, a token containing the result data, the module number to serve as a return destination, and the link table address is produced as an output token out of the paired tokens. This produced output token is sent to the return destination. Thus it is possible to obtain a subroutine mechanism that can be called from plural places.
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公开(公告)号：JP2013021701A
公开(公告)日：2013-01-31
申请号：JP2012187034
申请日：2012-08-27
Inventor： UCHIDA KAORU
CPC classification number: H04W12/12 , H04M1/274516 , H04W88/02
Abstract: PROBLEM TO BE SOLVED: To provide a communication system including a mobile terminal, capable of preventing information leakage if the mobile terminal is lost, and capable of regenerating secret data having been stored ever, without losing the new created and updated secret data.SOLUTION: A mobile terminal 1 includes connection state decision means 6 for detecting a channel connection state to a server 2. When the channel connection state indicates a broadband connection, the mobile terminal 1 directly reads out or stores data from/to data storage means 23 provided in the server 2. When the channel connection state indicates a narrow band connection, the mobile terminal 1 once reads out or stores data from/to data storage means 14 provided in the terminal, and thereafter, stores the secret data updated when the operation of the mobile terminal 1 is completed or a secrecy keeping operation initiation command is generated from a user, into the data storage means 23 of the server 2, and then erases the secret data.
Abstract translation: 要解决的问题：提供一种包括移动终端的通信系统，能够防止移动终端丢失时的信息泄漏，并能够重新生成已经存储的秘密数据，而不会丢失新创建和更新的秘密数据 。 解决方案：移动终端1包括用于检测到服务器2的信道连接状态的连接状态判定装置6.当信道连接状态指示宽带连接时，移动终端1直接从/向数据读出或存储数据 存储装置23设置在服务器2中。当信道连接状态表示窄带连接时，移动终端1一次从/向存储在终端中的数据存储装置14读出或存储数据，然后存储更新的秘密数据 当完成移动终端1的操作或从用户生成保密操作开始命令时，进入服务器2的数据存储装置23，然后擦除秘密数据。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2004118676A
公开(公告)日：2004-04-15
申请号：JP2002283308
申请日：2002-09-27
Inventor： UCHIDA KAORU
CPC classification number: G06K9/00067
Abstract: PROBLEM TO BE SOLVED: To provide the low cost and a low overhead fingerprint authenticating method for determining the suitability of an input fingerprint image from widely ranged points of view only by software, and executing authentication by combining it with a feature collation result.
SOLUTION: An input fingerprint characteristic determining part 12 of this fingerprint authenticating device uses the spacial distribution of the luminance of a fingerprint input image. At first, a peak envelope calculating part 121 calculates a peak envelope where the maximum value point and minimum value point of luminance on an observation line are connected with a straight line. In this case, the ridge curve and peak envelope of the fingerprint image obtained under a proper condition show sharp characteristics, and they are used for determination. Then, a discrimination featured value calculating part 122 calculates a plurality of predetermined featured values constituted of the integration of a luminance distribution function and the peak envelope on the observation line. Then, a discrimination determining part 124 substitutes the featured values in a discrimination formula constituted of learning data preliminarily stored in a discrimination coefficient holding part 123 to determine whether or not the input is appropriate.
COPYRIGHT: (C)2004,JPO-
Patent Agency Ranking
公开(公告)号：JP2001216045A
公开(公告)日：2001-08-10
申请号：JP2000025816
申请日：2000-02-03
Applicant: NEC CORP
Inventor： UCHIDA KAORU
Abstract: PROBLEM TO BE SOLVED: To provide a biometrics inputting device capable of surely verifying a person himself or herself without generating any security hole even when biometrics inputting part and processing part are not necessarily integrated. SOLUTION: A fingerprint sensor 11 photographs a fingerprint picture when a finger is touched, and converts the photographed input picture into digital data, and transmits it to a picture enciphering part 13. The picture enciphering part 13 enciphers the input picture based on an encipherment key from an encipherment key holding part 12. A picture decoding part 21 decodes the signal received from the fingerprint inputted device 1 by using the key from the encipherment information holding part 24. A fingerprint feature extracting part 22 calculated features to be used for fingerprint collation from the picture information being the decoded result. A fingerprint feature collating part 23 collates the fingerprint features obtained by the fingerprint feature extracting part 22 with the fingerprint features of a user registered for an each user fingerprint registration information table 26, and transfers the result to a collated result judging part 25.
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公开(公告)号：JP2000276445A
公开(公告)日：2000-10-06
申请号：JP7769799
申请日：1999-03-23
Applicant: NEC CORP
Inventor： UCHIDA KAORU
Abstract: PROBLEM TO BE SOLVED: To obtain an authentication device which has a high security and is free from the trouble that a password is preliminarily stored. SOLUTION: The fingerprint picture of a user detected by a fingerprint sensor 10 is converted to a digital picture, and its fingerprint features are extracted by a fingerprint feature extraction part 11. Fingerprint feature information and Secret information peculiar to the user are stored in a user information storage part 13. A fingerprint collation part 12 compares stored fingerprint features with fingerprint information stored in the user peculiar information storage part 13 to discriminate whether the user is a registered user or not; and if the user is registered, secret information paired with this fingerprint information is sent to an authentication message encryption part 15. A cipher key consensus part 14 uses random numbers to generate a cipher key, and the authentication message encryption part 15 uses this cipher key to encipher the secret information and sends it from a communication message transmission part 16 to an authentication execution machine 2. This machine 2 uses a cipher key generated by a cipher key consensus part 22 to decipher the message received from a portable terminal 1 by an authentication message deciphering part 23.
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公开(公告)号：JPH09134427A
公开(公告)日：1997-05-20
申请号：JP28946095
申请日：1995-11-08
Applicant: NEC CORP
Inventor： UCHIDA KAORU
Abstract: PROBLEM TO BE SOLVED: To automatically extract the location and direction of the first joint line contained in a fingerprint image to be collated and to enable the stable positioning to improve the precision of a fingerprint collation by providing each specified vertical area separation part, a projection calculation part, a valley candidate calculation part and a valley information integration part. SOLUTION: A vertical area separation part 11 divides an input image into plural small areas (zones) by the straight line group parallel to a Y direction. A projection calculation part 12 performs the density projection processing in an X direction in each zone and determines a projection histogram. A valley candidate calculation part 13 determines the minimum point called as a valley from the obtained projection histogram. A valley degree of conviction calculation part 14 calculates the degree of conviction for each valley in each zone. A zone degree of conviction calculation part 15 calculates the degree of conviction for each zone. A valley information integration part 16 inputs the location of the valley obtained from the valley candidate calculation parts 13 in plural zones, the valley degree of conviction obtained from the valley degree of conviction calculation part 14 and the zone degree of conviction obtained from the zone degree of conviction calculation part 15 and determines the joint line location of the fingerprint image and the degree of conviction.
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公开(公告)号：JPH02232785A
公开(公告)日：1990-09-14
申请号：JP5448389
申请日：1989-03-07
Applicant: NEC CORP
Inventor： UCHIDA KAORU
IPC: G06F15/82
Abstract: PURPOSE:To easily realize the synchronization by inserting '0' in front of a data train of a pair token to be shifted out of two pair tokens inputted successively to a synchronizing part, adding '0' to the rear of a data train of the other pair token and combining them. CONSTITUTION:A data processor 20 operates in accordance with a token inputted through an input part 11 from the outside. Before the token is subjected to an operation by a processing unit 16, a direction flag used by a link table to have after the operation and a function table 2 and a code table address 14 are fetched by the link table 12. As a result, the token having a prescribed format is sent to a synchronizing device. The processor 20 of the synchronizing device shifts one of a pair token inputted to a synchronizing part and written in an internal memory, and a pair token inputted to the synchronizing part afterwards, and combines a data train which inserts '0' in front of a data train of the pair token to be shifted, and a data train which adds '0' to the rear of a data train of the other pair token.
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公开(公告)号：JPH01255935A
公开(公告)日：1989-10-12
申请号：JP8319488
申请日：1988-04-06
Applicant: NEC CORP
Inventor： UCHIDA KAORU
Abstract: PURPOSE:To enable outputting a token having the result data to an external part immediately after a final operation is executed by the arithmetic part of a data flow processor by serially connecting a bus token queue, a bus token table and a bus token output part. CONSTITUTION:After a token is processed by a processing unit, in a token outputted to an external bus 102, it is sent from a processing unit to a bus token table 21 in accordance with the code and the token different from it is sent to a link table. The token sent to the table 21 table-refers by a link table address. A module number to be held when the token is outputted and a new link table address are fetched, shaped to the form of an external bus token with it and outputted through a bus token output part 22 to the external bus 102.
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