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

JPH04293332A BIT PHASE SYNCHRONIZING CIRCUIT 失效
公开(公告)号：JPH04293332A
公开(公告)日：1992-10-16
申请号：JP5856991
申请日：1991-03-22
申请人： HITACHI LTD , HITACHI VLSI ENG
发明人： OZAKI NAOHIKO , ASANO KENICHI , AIKI KIYOSHI , MIZUKAMI MASAO
IPC分类号： H04L7/02 , H03L7/06 , H04L25/493
摘要： PURPOSE:To suppress increase in power consumption and further to easily distribute a high speed clock in the bit phase synchronizing circuit comprising a bit phase adjustment circuit, a bit change point detection circuit and a bit phase control circuit. CONSTITUTION:The bit phase synchronizing circuit consists of a bit phase adjustment circuit changing a delay quantity of an input data, a bit change point detection circuit 2 detecting a relation of a phase of the input data with a phase of a reference clock and generating a change point detection signal representing it that the phase is deviated from the allowable range, and a bit phase control circuit 3 giving a control signal for selecting the delay quantity to the bit phase adjustment circuit 1 according to the change detection signal, and the bit phase control circuit 3 is operated by a clock whose speed is lower than that of the reference clock. Thus, the power consumption is suppressed by decreasing the speed of the bit phase control circuit. Moreover, circuits for high speed clock operation are limited to facilitate clock distribution.

2. 发明专利

JP2000307472A METHOD FOR DEMODULATING CODE SPREAD QPSK MODULATED SIGNAL AND RADIO COMMUNICATION DEVICE 失效
公开(公告)号：JP2000307472A
公开(公告)日：2000-11-02
申请号：JP11065499
申请日：1999-04-19
申请人： HITACHI LTD
发明人： AIKI KIYOSHI , ARIYOSHI MASAYUKI , SUZUKI MEI
IPC分类号： H04L27/22 , H04B1/707 , H04B1/7093
摘要： PROBLEM TO BE SOLVED: To provide a demodulating method for spread spectrum QPSK (quadrature phase shift keying) modulated signal and a radio communication device which can make a circuit smaller in scale and lower in power consumption. SOLUTION: The I component Di(t) and Q component Dq(t) of a code spread QPSK modulated signal are inversely spread by chips with an I component spread code Ci and a Q component spread code Cq to generate a plurality of series of inverse spread results by the chips, the series of inverse spread results are processed in specific combinations to generate demodulated values of the I component and Q component of the QPSK modulated signal by the chips, and the demodulated values of the I component and Q component by the chips are cyclically accumulated according to respective chip sequences of the spread code.

3. 发明专利

JPH09292945A POINTING DEVICE 失效
公开(公告)号：JPH09292945A
公开(公告)日：1997-11-11
申请号：JP10679796
申请日：1996-04-26
申请人： HITACHI LTD
发明人： KATSURAGI MASAHIKO , AIKI KIYOSHI
IPC分类号： G06F3/033 , G06F3/048
摘要： PROBLEM TO BE SOLVED: To provide an information input device which does not occupy a great deal of space, is convenient for carrying and does not need training and the learning of an input operation by providing a key switch and a small track ball for a finger case part, modulating switch on/off signal and a shift coordinate signal into light signals and emitting the signal light toward a different reception part. SOLUTION: The pushbutton switch 13 and the track ball with shift coordinate encoder 15 for learning shift quantity are incorporated in the finger case part 11. A control circuit for converting switch on/off information and shift quantity information into the light modulation signals and a light emitting part 16 are incorporated in an arm band part 10. The shift direction and the shift quantity or the track ball 15 in the finger case part 11 and on/off information on the pushbutton switch 13 are transmitted to an encoder circuit part 43 calculating a rotation position and shift quantity and a switch interface part 47 for detecting the turning on/off of the switch via a lead line and they are light-transmitted to a reception part 31 for connecting a personal computer 62 from the light-emitting element 16.

4. 发明专利

JPH09282067A WIRELESS KEYBOARD SYSTEM 失效
公开(公告)号：JPH09282067A
公开(公告)日：1997-10-31
申请号：JP9382496
申请日：1996-04-16
申请人： HITACHI LTD
发明人： AIKI KIYOSHI , MORISHIMA KENTA , KATSURAGI MASAHIKO , HATAKEYAMA TSUTOMU , YAMAMOTO TAKASHI , HAMAMOTO NOBUO
IPC分类号： G06F3/02
摘要： PROBLEM TO BE SOLVED: To enable bidirectional communication by infrared light and to discriminate whether data transfer is properly performed or not by arranging light emitting/receiving modules at both a keyboard part and the main body part of a device. SOLUTION: A main body part 1 of the device and a keyboard part 2 perform communication through an infrared communication line L1 provided by linearly connecting the space between light emitting/ receiving modules 13 and 23. Further, a memory 24 of the keyboard part 2 stores an individual number for recognizing the keyboard part 2 itself and an individual number for the main body part 1 of the device of a communicating party and a memory part 1 4 at the main body part 1 of the device stores an individual number for the main body part 1 of the device itself and an individual number for the keyboard part 2 of a communicating party so that the communicating parties are recognized each other. Then, while receiving key information, the main body part 1 of the device returns a response to the keyboard part 2 and the keyboard part 2 compares the received response information with key information stored in advance and discriminates whether data transfer is properly performed or not.

5. 发明专利

JPH0492534A TRANSMISSION CIRCUIT 失效
公开(公告)号：JPH0492534A
公开(公告)日：1992-03-25
申请号：JP20807090
申请日：1990-08-08
申请人： HITACHI LTD
发明人： AIKI KIYOSHI , OZAKI NAOHIKO , MIZUKAMI MASAO , GOHARA SHINOBU
IPC分类号： H04L12/28
摘要： PURPOSE:To reduce the total size of a transmission circuit by providing a synchronizing pattern inserting pert, a transmission elastic store memory part, a parallel/serial conversion part, a bit phase synchronizing part, a serial/parallel conversion part, a cell synchronizing part, and a reception elastic store memory part. CONSTITUTION:A bit phase synchronizing circuit 1, a serial/parallel conversion circuit 2, a byte synchronizing circuit 3, a cell. synchronizing circuit 4, a reception elastic store memory '), a synchronizing pattern inserting circuit 7, a transmission elastic store memory circuit 6, a parallel/serial conversion circuit 8, etc., are provided on the same chip together with a transmission drive element and a reception element. That is, several, steps of protecting functions are provided to the sequence for detection of noncoincidence of the synchronizing patterns under decision of synchronization and the sequence for detection of coincidence of the synchronizing patterns under non-decision of synchronization. Thus the malfunctions including the bit errors can be prevented. Then the number of wirings can be minimized on a transmission line and therefore the exchanging ability equivalent to about several tens of circuits can be secured on a single board. As e result, a device can be easily miniaturized.

6. 发明专利

JP2010148829A Computer system 有权
标题翻译：电脑系统
公开(公告)号：JP2010148829A
公开(公告)日：2010-07-08
申请号：JP2008333166
申请日：2008-12-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURIYAMA HIROYUKI , AIKI KIYOSHI , TANAKA TAKESHI
IPC分类号： A61B5/11
摘要： PROBLEM TO BE SOLVED: To provide a system for easily visualizing the sleeping state of a user.
SOLUTION: A sleep monitor system includes a sensor mounted on a human and outputting an acceleration; and a computer for detecting the change of direction of a human body, on the basis of the output acceleration. The system generates an image for evaluating the sleeping state of the user. The computer obtains acceleration information, detects a bedtime, a wake-up time, and roll-over times during the sleep so as to calculate intervals between the respective roll-over times. Besides, the calculated roll-over intervals are time-sequentially arrayed, and the lengths of the roll-over intervals are indicated by shading, so that the image is generated, where the depth of the sleep during sleeping is visualized. Transition of quality in daily sleeping is presented to the user with the rate of the roll-over intervals which are equal to or longer than a predetermined length to the whole sleeping time as an index.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于容易地使用户可视化睡眠状态的系统。解决方案：睡眠监视器系统包括安装在人身上并输出加速度的传感器; 以及用于根据输出加速度检测人体方向变化的计算机。系统生成用于评估用户睡眠状态的图像。计算机在睡眠期间获得加速度信息，检测睡前时间，唤醒时间和翻转时间，以计算各个翻转时间之间的间隔。此外，计算出的翻转间隔是时间顺序排列的，并且翻转间隔的长度由阴影指示，从而生成在睡眠期间睡眠深度可视化的图像。以每次睡眠质量的转换，将以等于或长于预定长度的翻转间隔的速率以整个睡眠时间作为索引呈现给用户。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2002303653A SEMICONDUCTOR INTEGRATED CIRCUIT APPARATUS 审中-公开
公开(公告)号：JP2002303653A
公开(公告)日：2002-10-18
申请号：JP2001265210
申请日：2001-09-03
申请人： HITACHI LTD , HITACHI ULSI SYS CO LTD
发明人： AIKI KIYOSHI , HIKONE KAZUFUMI , ADACHI HIROYUKI , OKAMOTO MASAYOSHI , ONOSE MASAO , MIZUNO YUJI
IPC分类号： G01R31/28 , H01L21/3205 , H01L21/66 , H01L23/52 , H01L23/58
摘要： PROBLEM TO BE SOLVED: To solve the problem that a semiconductor integrated circuit device having inspection pads at four corners are repeatedly moved and are subjected to needle contact one by one every time as far as no special probe cards are used in the conventional probe inspection, and hence it took inspection per one time times the number of inspections (number of circuits) for inspection time per semiconductor wafer, which has been a problem in costs. SOLUTION: Pads 211, 212, 213, and the like for inspecting probes are arranged at one side or two opposite sides of a circuit 1, and wiring 411, 412, 413, and the like is extended from desired pads 311, 312, 313, and the like for bonding arranged at a side other than one side or two opposite sides in the above where the pad for inspecting probes is arranged for connecting to the corresponding pads 211, 212, 213, and the like for inspecting probes. In probe inspection, the probe needle is brought into contact with the pads (probe inspection and pad for bonding) that are arranged at one side or the two opposite sides in a circuit to be inspected for inspection.

8. 发明专利

JPH11341016A SWITCHING SYSTEM 失效
公开(公告)号：JPH11341016A
公开(公告)日：1999-12-10
申请号：JP11606599
申请日：1999-04-23
申请人： HITACHI LTD
发明人： OZAKI NAOHIKO , YANAGI JUNICHIRO , TORII YUTAKA , AOKI KAORU , AIKI KIYOSHI , GOHARA SHINOBU
IPC分类号： H04L12/28
摘要： PROBLEM TO BE SOLVED: To perform a cell exchange operation in accordance with a cell transmission speed of an outgoing line by selecting an address queue in accordance with an output of a table for specifying a destination of a cell and a quality class and controlling cell writing into and reading from a buffer memory. SOLUTION: Quality class control of two classes is performed by providing two writing address memories 101 and 101' and two reading address memories 102 and 102' respectively. At the time of writing of a cell, writing addresses WA1 and WA1' are read from each of the writing address memories 101 and 101' respectively with a VP included in cell header information to be inputted from a line L31 as an address, each of the reading address memories 102 and 102' outputs reading addresses RA1 and RA1' with the VP to be outputted from a band control table 104" as the address. A quality class control circuit 106 selects a specified CLS and outputs it.

9. 发明专利

JPH10171620A ELECTRONIC PAPER 失效
公开(公告)号：JPH10171620A
公开(公告)日：1998-06-26
申请号：JP32649096
申请日：1996-12-06
申请人： HITACHI LTD
发明人： KATSURAGI MASAHIKO , IWAMA YUKIKO , OGURA CHIKAYOSHI , ONISHI TADASHI , AIKI KIYOSHI , AKIYAMA YASUHIRO , HAMAMOTO NOBUO
IPC分类号： G06F3/041 , G06F3/03 , G06F3/048 , G06F3/14 , G09F9/00 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To unnecessitate a printing mechanism part and to enable anyone to reuse an electronic paper by using a display which can be bent like paper and displaying at all times the received information while the light serving as the energy source of a power supply. SOLUTION: If no information is received from a host terminal 13, a controller 21 functions to display the contents of the print information which are sent in the past, i.e., the contents of the character or image information which are already stored in a nonvolatile display memory 22. When a print instruction is given to a host terminal, the print information is sent to the normal controller 21 via an infrared signal transmitting/receiving part 2 and then an interface circuit 20. Then the print information is stored in the memory 22 and also shown on a display 4 which can be freely bent like paper. The display data once stored in an electronic paper never vary until they are printed out. In other words, the printed-out display data are semipermanently kept as they are as long as the light energy is supplied to a solar battery.

10. 发明专利

JPH09163426A PAGER TERMINAL HAVING PROVISION FOR MULTIMEDIA AND ITS SYSTEM 失效
公开(公告)号：JPH09163426A
公开(公告)日：1997-06-20
申请号：JP31515895
申请日：1995-12-04
申请人： HITACHI LTD
发明人： KATSURAGI MASAHIKO , HAMAMOTO NOBUO , ONISHI TADASHI , AIKI KIYOSHI , AKIYAMA YASUHIRO
IPC分类号： H04W88/02 , H04Q7/16
摘要： PROBLEM TO BE SOLVED: To obtain the small sized pager terminal suitable for carrying in which expansion processing is available even when any kind of media information and any kind of coding system information are in mixture by using a microprocessor applying expansion decoding to information through the adoption of the expansion decoding system with respect to a read compression coding system. SOLUTION: A single chip microprocessor 30 stores image display information and sound information subject to compression coding obtained from a base band demodulation section 40 to a data storage memory 31. Then a content of an identification code denoting a compression coding system of multimedia information consisting of the image display information and the sound information is checked, and an expansion processing arithmetic operation in matching with received data among plural expansion processing arithmetic operations is executed by reading an arithmetic program of the expansion arithmetic processing from the data storage memory 31. Since one microprocessor is used for expansion processing adopting diversified information compression systems, the cost of a pager terminal is reduced the size of the pager terminal is made small.

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