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1. 发明专利

JPH1188535A NETWORK CONTROLLER FOR TERMINAL EQUIPMENT 失效
公开(公告)号：JPH1188535A
公开(公告)日：1999-03-30
申请号：JP25055797
申请日：1997-09-16
申请人： N T T ELECTRON KK
发明人： ITO HIROO , CHIBA YOSHIICHI , SAITO HIROSHI , KAKINUMA MASAHITO
IPC分类号： H04M11/00 , H04L12/02
摘要： PROBLEM TO BE SOLVED: To eliminate the need for installation of indoor-outdoor cables by providing the terminal network controller I-NCU having provision for an ISDN to an outdoor position of a DSU at the side of a line interface LI point. SOLUTION: A DSU 4 and a terminal equipment TE 5 connect to an I-NCU 2 via an LI point 6 and an outdoor meter 3 connects to the outdoor I-NCU 2. The I-NCU 2 has a function of interpreting a signal of layer 3 and terminates D and B channels to apply metering processing to the meter 3 when a specific information element such as a sub address in an outgoing D channel signal from an exchange terminator ET8 designates the I-NCU 2. The processing result is returned to the ET 8 by a definite field such as a user information element in an incoming D channel signal or a B channel. When the I-NCU 2 is not designated, a conventional ISDN protocol that is sent/received between the DSU 4, the TE 5 and the ET 8 is relayed for communication. Thus, the meter 3 is connected to the I-NCU 2 outdoor.

2. 发明专利

JPH1188149A LOGIC CIRCUIT 失效
公开(公告)号：JPH1188149A
公开(公告)日：1999-03-30
申请号：JP25622097
申请日：1997-09-05
申请人： NIPPON TELEGRAPH & TELEPHONE , N T T ELECTRON KK
发明人： GOTO YOSHINORI , OMORI YASUO , NAKAMURA KAZUYUKI
IPC分类号： H03K19/0948
摘要： PROBLEM TO BE SOLVED: To prevent a through-current of a logic gate without increasing the number of elements and making the layout complicated. SOLUTION: In the logic circuit where a CMOS logic gate connects to a post-stage of a transfer gate, a transistors(TRs) whose threshold voltage is lower than that of a PMOS TR QP12 being a component of a post-stage logic gate 2 is employed for a TR of an NMOS transfer gate 3. Thus, in the case that a high level signal is received, the PMOS TR QP12 of the logic gate 2 of the post-stage is surely made nonconductive.

3. 发明专利

JPH1175261A PHS CORDLESS TELEPHONE INFORMATION TRANSFER METHOD 失效
公开(公告)号：JPH1175261A
公开(公告)日：1999-03-16
申请号：JP23516997
申请日：1997-08-29
申请人： N T T ELECTRON KK
发明人： IKEDA YASUHISA , OSHIMA TAKESHI
IPC分类号： H04W4/04 , H04M11/00 , H04W4/20 , H04W76/06 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To transfer low-traffic information at low cost by incorporating digital information in a subaddress area in a call setting message and sending it, and sending a disconnection message without using any information channel. SOLUTION: In the subaddress area in the call setting message at the time of origination at a center 11, a request to send the current value of a meter 12 and a battery state is indicated, and transmitted as the call setting message by radio communication at a base station 14 to communication through a PHS cordless telephone network 15. The communication equipment 13 having received a request to provide information calls the center 11, incorporates the digital information value of the meter 12 in the subaddress area in the call setting message from the communication equipment 13 and sends an answer, and enters a disconnection sequence of a call for sending a disconnection message without using any information channel. When the equipment has its report cycle predetermined or when abnormality of the equipment is detected, the communication equipment 13 originates exactly in the same with the origination at the center 11 to inform the center 11 of the state.

4. 发明专利

JPH10313454A DIGITAL VIDEO IMAGE DISTRIBUTION SYSTEM 失效
公开(公告)号：JPH10313454A
公开(公告)日：1998-11-24
申请号：JP13777397
申请日：1997-05-12
申请人： TOKYO BROADCASTING SYST , N T T ELECTRON KK
发明人： HAYASHI TOSHINARI , OKUNAKA JUNZO
IPC分类号： H04H1/00 , H04H40/18 , H04H60/04 , H04N5/222 , H04N5/232 , H04N7/16 , H04N7/18 , H04N21/21 , H04N21/226 , H04N21/27 , H04H7/00
摘要： PROBLEM TO BE SOLVED: To provide a digital video image distribution system, easy for extension and with reduced maintenance cost for re-installation, that is built up with due consideration to real time performance of a video image and is operated as a component of a LAN. SOLUTION: A system is provided with a means that uses a transmitter side terminal equipment 102 to convert an analog video signal of a video source into digital information by video information compression, a means (hub 103) that distributes the digital video information to a plurality of destinations by a multi-cast communication packet, and a means (NIC included in 104) having an address filter for an address denoting a transmission source to a network interface of a receiver side terminal equipment 104. Then an address denoting the transmission source of the multi-cast communication packet is set to the address filter from a host processing side. Thus, a load of a CPU of the receiver terminal equipment is relieved, the number of terminal equipments sending a video image operated simultaneously is limited only by information amount to be contained in a LAN and a video image information amount, and the system has extendability (coping with increase in input and output numbers).

5. 发明专利

JPH10246874A OPTICAL MODULATOR CONTROL CIRCUIT 失效
公开(公告)号：JPH10246874A
公开(公告)日：1998-09-14
申请号：JP4933197
申请日：1997-03-04
申请人： NIPPON TELEGRAPH & TELEPHONE , N T T ELECTRON KK
发明人： AIZAWA SHIGEKI , MIYAO HIROSHI , YONENAGA KAZUSHIGE , TAKACHIO NOBORU , MIYAMOTO YUTAKA , KUWANO SHIGERU
IPC分类号： G02F1/03 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To control the bias voltage of an optical modulator without being affected by an intensity-modulated component having a mean value of the finite band of an input signal and the finite band of the optical modulator. SOLUTION: A low-frequency signal outputted from a low-frequency generating means 11 is superposed on the bias voltage of an MZ type external modulator 32 through an adding means 13. The output light signal of the MZ type external modulator 32 is converted by a photoelectric converting means 13 into an electric signal. A DC and low-frequency removing means 14 removes a DC component and the low-frequency component of a low-frequency signal from this electric signal to detect only the amplitude-modulated signal component of the low-frequency signal. An envelope detecting means 15 detects the envelope of the output signal of the DC and low-frequency removing means 14. A synchronous detecting means 16 compares the phase of the output signal of the envelope detecting means 15 with that of the low-frequency signal. An integrating means 17 integrates the output signal of the synchronous detecting means 16 and corrects a bias voltage applied to the MZ external modulator 32 through an adding means 12.

6. 发明专利

JPH1063670A DOCUMENT RETRIEVING SYSTEM 失效
公开(公告)号：JPH1063670A
公开(公告)日：1998-03-06
申请号：JP21618096
申请日：1996-08-16
申请人： NIPPON TELEGRAPH & TELEPHONE , N T T ELECTRON KK
发明人： IMAI TAKASHI , UNNO MIKIHIRO , NAMIKI IKUO , UJIIE MASAMI
IPC分类号： G06F17/30
摘要： PROBLEM TO BE SOLVED: To smoothly retrieve a document including keywords specified from plural servers distributed on a network only one server's access and to display the retrieved result based on a client side specific specification. SOLUTION: On the client side, a retrieving server condition setting means 24 specifies a server for executing retrieval out of plural servers based on server definition data. On the server side, a server definition data acquiring/ storing means 34 acquires and stores the server definition data of plural servers for executing retrieval. Then a plural server retrieval correspondence means 32 collects information from plural servers based on the stored server definition data and a displaying data processing means 33 works retrieved results obtained from plural servers to specification to be displayed on the client side and returns the worked retrieved results to the client side. On the client side, a retrieved result display means 25 displays the retrieved results.

7. 发明专利

JPH1031732A DOCUMENT FETCHING AND DISPLAYING SYSTEM 失效
公开(公告)号：JPH1031732A
公开(公告)日：1998-02-03
申请号：JP18708996
申请日：1996-07-17
申请人： NIPPON TELEGRAPH & TELEPHONE , N T T ELECTRON KK
发明人： UNNO MIKIHIRO , IMAI TAKASHI , NAMIKI IKUO , UJIIE MASAMI
IPC分类号： G06F13/00 , G06T1/00 , H04N1/21
摘要： PROBLEM TO BE SOLVED: To quickly start a display when a client fetches and displays a document stored in a server side by computer communication. SOLUTION: Documents to be stored are previously stored in a document storing means 48 in a server part 22 in each page, and in the case of fetching a certain document by a request from a client part 21, the document is fetched not by each document but by each page. Namely when the client part 21 outputs a document fetching request, based on a user's instruction, a file list means 45 in the server part 22 sends information such as the number of pages of the document. A page request means 37 in the client part 21 requests only a page specified by the user, fetches the page from the server part 22 and displays the fetched page. When time required up to the display is less than allowable time, the client part 21 requests and fetches the next page and stores the fetched page in a document storing means 38, so that display can be instantaneously started in accessing the next page.

8. 发明专利

JPH1174498A SEMICONDUCTOR INTEGRATED DEVICE 失效
公开(公告)号：JPH1174498A
公开(公告)日：1999-03-16
申请号：JP23517197
申请日：1997-08-29
申请人： N T T ELECTRON KK
发明人： IEDA NOBUAKI , NAKAJIMA BAN , SAKAI TETSUSHI , MANO TSUNEO , AKAZAWA YUKIO , INO MASAYUKI , INOKAWA HIROSHI
IPC分类号： H01L29/872 , H01L27/12 , H01L27/14 , H01L29/47 , H01L31/04 , H01L31/108
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor integrated device capable of improving the photoelectric conversion efficiency of its light receiving element, by removing one or whole opposed portion of its silicon layer to its electrode wiring through etching, and by projecting a light therethrough on the light receiving element. SOLUTION: In a silicon semiconductor substrate with an SOI structure, a Schottky junction 25 is formed between a first metallic electrode 26 and an N-type or intrinsic silicon layer 23. On the lateral side of the first metallic electrode 26, an N -type region 28 and a second metallic electrode 27 connected with the region 28 are formed. The N-type or intrinsic silicon layer 23 is extenddely from the under portion of the first electrode 26 to the N -type region 28 to bring them into an electrically connected state, one or whole opposed portion of the silicon layer 23 to the wiring of the electrode 26 is removed by an etching so that a light 29 can be projected on the depleted N-type or intrinsic silicon layer 23 from the opposite side to the Schottky junction 25 of a diode via an SiO2 layer 22.

9. 发明专利

JPH1152063A BURIED OBJECT PROBING DEVICE 失效
公开(公告)号：JPH1152063A
公开(公告)日：1999-02-26
申请号：JP20454497
申请日：1997-07-30
申请人： N T T ELECTRON KK
发明人： KAWAKAMI TAKASHI
IPC分类号： G01V3/12 , G01S7/02 , G01S13/88
摘要： PROBLEM TO BE SOLVED: To reduce noise and provide an image excellent in discriminability by averaging the binary addition sum of data obtained by the number of times of sampling every time predetermined from the reference time point of a drive pulse to make probing data. SOLUTION: The drive pulse of a drive pulse generation circuit 5 is generated as the unit of the number of times of 2 power multiplication at a prescribed repeating cycle, and a predetermined time from the reference point of the drive pulse is successively delayed every unit of the number of the times of 2 power multiplication of the drive pulse in the sampling of a probing wave receiving signal by a sampling holding circuit 7. It is performed in response to the rotation of the drive pulse, and A/D conversion data is averaged at every unit of the two power multiplication of the drive pulse sampled by making the same of a time from the reference point of the drive pulse by a main control circuit 11 to make probing data. The data are processed and displayed as a probing image by transmitting the data to a search image processing display device 10 to probe a buried object.

10. 发明专利

JPH1124558A CIPHERING DEVICE 失效
公开(公告)号：JPH1124558A
公开(公告)日：1999-01-29
申请号：JP17367197
申请日：1997-06-30
申请人： NIPPON TELEGRAPH & TELEPHONE , N T T ELECTRON KK
发明人： KANDA MASASUKI , TAKASHIMA YOICHI , AOKI KATSUHIKO , MATSUMOTO TSUTOMU
IPC分类号： H04L9/06 , G09C1/00
摘要： PROBLEM TO BE SOLVED: To increase the safety of a difference deciphering method and a linear deciphering method. SOLUTION: Similarly to the conventional DES(data encryption standard), input data is divided into two partial data R and L and the data R is nonlinearly converted by a nonlinear function means 304 with key data; and its output and the other partial data of the L are exclusively ORed and the array of the output and partial data R is converted into the data R and L, the same process is repeated and the input data are linearly converted 341 with key data in this case as a means 304 and the output is divided into bits in0 and in1 ; and one of function structures 3430 , 3431 ...3437 which are mutually and nonlinearly converted through three nonlinear means similar to one element S-box and three exclusive OR operations and in0 and in1 are inputted to the selected structure, whose outputs out0 and out1 are subjected to bit combination to obtain the output of the means 304.

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