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

JPS598347A Semiconductor integrated circuit device 失效
标题翻译：半导体集成电路设备
公开(公告)号：JPS598347A
公开(公告)日：1984-01-17
申请号：JP11679882
申请日：1982-07-07
申请人： Hitachi Ltd , Nippon Telegr & Teleph Corp
发明人： HASHIDA MITSUYOSHI , KAWARADA KUNIYASU
IPC分类号： H01L21/331 , H01L21/761 , H01L29/73
CPC分类号： H01L21/761
摘要： PURPOSE:To prevent abnormal operation between wells due to a parasitic transistor with the substrate used as the base by newly providing a well between the adjacent wells. CONSTITUTION:A semiconductor integrated circuit device employing the P-N junction separation structure uses, for example, a P type substrate 3 and provides an N well 1 and an N well 2. Another well 4 is additionally provided between the wells 1 and 2 and a potential A of the well 4 is set higher than the potential of wells 1 and 2. Thereby, the collector of a parasitic N-P-N transistor which uses the P type substrate 3 as the base is formed by the N well 4. Accordingly, even when the base and emitter junction is forward biased, a collector current can be extracted from the well 4. Therefore, any influence is applied on the well 2 and junction between the wells 1 and 2 can be prevented. This well 4 may be a well containing elements and may be provided in such a manner as surrounding the well 1.
摘要翻译：目的：通过在相邻的井之间新提供一个井，以防止基板用作基底的寄生晶体管，以防止井之间的异常操作。构成：采用PN结分离结构的半导体集成电路器件使用例如P型衬底3并提供N阱1和N阱2.另外在阱1和2之间提供另一阱4，阱4的A设定为高于阱1和2的电位。由此，使用P型衬底3作为基极的寄生NPN晶体管的集电极由N阱4形成。因此，即使当基极并且发射极结被正向偏置，可以从阱4中提取集电极电流。因此，对阱2施加任何影响，并且可以防止阱1和2之间的接合。该井4可以是容纳好的元件，并且可以以围绕井1的方式提供。

2. 发明专利

JPH07170559A PORTABLE TELEPHONE SYSTEM 失效
公开(公告)号：JPH07170559A
公开(公告)日：1995-07-04
申请号：JP15901594
申请日：1994-07-11
申请人： HITACHI LTD , KOKUSAI ELECTRIC CO LTD
发明人： FUKUSHIMA YUTAKA , TAKEMURA TETSUO , IWAKI SHINICHI , HASHIDA MITSUYOSHI , WANAMI MASAO , SHINPO ISAO , WADA MITSUHIRO , UTAKI HIROSHI , KONDOU YOSHIHIRO , YAMAMOTO YOSHINOBU , NAKAKOSHI ARATA , WATABE YUMIKO , OTA KOICHI , KUWABARA HIROSHI
IPC分类号： H04Q7/38 , H04Q7/26 , H04Q7/30 , H04Q7/34 , H04Q7/22 , H04Q7/24
摘要： PURPOSE:To allow the user to recognize the location of a radio base station and the use of the radio base station. CONSTITUTION:A radio base station serving a speech channel by a radio channel to each of plural portable telephone sets is installed in a public telephone box in relation with each portable telephone set and whose presence is easily recognized by the users. The radio base station is made up of a main body 3900 and an antenna 3902 and preferably with a display device by which the use state of speech channels of the radio base station is displayed visually externally.

3. 发明专利

JPH05130669A METHOD FOR REGULATING MOBILE BODY COMMUNICATION SYSTEM 失效
公开(公告)号：JPH05130669A
公开(公告)日：1993-05-25
申请号：JP29268691
申请日：1991-11-08
申请人： HITACHI LTD
发明人： HASHIDA MITSUYOSHI
IPC分类号： H04W48/20 , H04W84/10
摘要： PURPOSE:To remove regulation of a base station having little traffic volume by allowing a base station having much traffic to take partial change of traffic volume to be regulated. CONSTITUTION:In respect of the transmission route of traffic information, respective base stations are linearly connected and each base station is provided with a radio part 100, a control part 200, a communication processing part 300, a regulation rate calculating part 400, and an information transfer part 500. A base station having traffic volume less than a fixed value is not regulated and other base stations are regulated so as to attain a specified regulation rate as a whole by distributing the regulation rate to the base stations so as to take charge of a specified traffic volume to be regulated. Each base station determines the regulation rate of the traffic to be processed by itself and that of its slave station based upon the regulation rate transmitted from its master station, the traffic volume of its own station and that transmitted from the slave station and transmits the regulation rate to the slave station.

4. 发明专利

JPS6028461B2 失效
公开(公告)号：JPS6028461B2
公开(公告)日：1985-07-04
申请号：JP1057278
申请日：1978-02-03
申请人： HITACHI LTD
发明人： HASHIDA MITSUYOSHI , HIROSE KAZUTO
IPC分类号： H04Q1/457 , H04L27/26

5. 发明专利

JPS57118493A Receiver of digital mf signal 失效
标题翻译：数字信号接收器
公开(公告)号：JPS57118493A
公开(公告)日：1982-07-23
申请号：JP305281
申请日：1981-01-14
申请人： Hitachi Ltd
发明人： HASHIDA MITSUYOSHI
IPC分类号： H04Q1/457
CPC分类号： H04Q1/4575
摘要： PURPOSE:To obtain a digital MF signal receiver which increases both the efficiency and multiplication of circuit, by eliminating the waste time of an absolute value sum circuit. CONSTITUTION:The 16-bit series data showing the sample value of an MF signal which received the series-parallel conversion plus the 8-bit series data of the product among the window function plus sine and cosine waves are applied to the parallel and series inputs to be applied to a multiplier. Furthermore an integrator is added to increase the multiplication factor of a receiver. Thus the integrating action is carried out individually for the sine and cosine wave sides respectively.
摘要翻译：目的：通过消除绝对值和电路的浪费时间，获得提高电路效率和乘法的数字MF信号接收器。构成：在窗口功能加正弦和余弦波之间，显示接收到串并联转换加乘积8位序列数据的MF信号的采样值的16位串行数据被应用于并行和串行输入应用于乘数。此外，增加了积分器以增加接收机的乘法系数。因此，分别对正弦波和余弦波进行积分动作。

6. 发明专利

JP2001007936A PORTABLE TELEPHONE SYSTEM 失效
公开(公告)号：JP2001007936A
公开(公告)日：2001-01-12
申请号：JP2000141417
申请日：2000-05-15
申请人： HITACHI LTD , HITACHI INT ELECTRIC INC
发明人： FUKUSHIMA YUTAKA , TAKEMURA TETSUO , IWAKI SHINICHI , HASHIDA MITSUYOSHI , WANAMI MASAO , SHINPO ISAO , WADA MITSUHIRO , UTAKI HIROSHI , KONDO YOSHIHIRO , YAMAMOTO YOSHINOBU , NAKAKOSHI ARATA , WATABE YUMIKO , OTA KOICHI , KUWABARA HIROSHI
IPC分类号： H04M9/00 , H04B7/26 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To achieve a variety of services using a portable telephone. SOLUTION: Data received by a portable telephone 1 connected to a radio base station 2, which is connected to an exchange 4 or the like, by radio has error corrected by an error control circuit 270 and is sent to an outside connected data terminal 172 through an interface as prescribed. Meanwhile, data sent from the data terminal through the interface as prescribed is transmitted from the portable telephone 1 to the radio base station 2. For example, when the data terminal 271 is a home security device, not only the home security device can be controlled in the place where a user has gone but also the home security device can call the portable telephone, which the user being out carries, at a prescribed timing to send required information or the like to the portable telephone.

7. 发明专利

JPH05102916A PORTABLE TELEPHONE SYSTEM 失效
公开(公告)号：JPH05102916A
公开(公告)日：1993-04-23
申请号：JP25948891
申请日：1991-10-07
申请人： HITACHI LTD , KOKUSAI ELECTRIC CO LTD
发明人： FUKUSHIMA YUTAKA , TAKEMURA TETSUO , IWAKI SHINICHI , HASHIDA MITSUYOSHI , WANAMI MASAO , SHINPO ISAO , WADA MITSUHIRO , UTAKI HIROSHI , KONDOU YOSHIHIRO , YAMAMOTO YOSHINOBU , NAKAKOSHI ARATA , WATANABE YUMIKO , OTA KOICHI , KUWABARA HIROSHI
IPC分类号： H04B10/00 , H04B10/032 , H04B10/035 , H04B10/07 , H04B10/272 , H04B10/29 , H04M3/22 , H04W4/16 , H04W24/04 , H04W24/06 , H04W56/00 , H04W60/04 , H04W64/00 , H04W84/04 , H04W88/08 , H04W92/00
摘要： PURPOSE:To improve the reliability of a portable telephone system. CONSTITUTION:In each system, a base station controller 3 is connected to a radio base station BS vie a duplex optical fiber 62. This fiber 62 is connected to each station BS of the corresponding system via a star coupler 65. Then each station BS is placed in each area so that the stations BS of different systems are contiguous to each other. Thus it is possible to improve reliability of the long distance transmission between the controller 3 and the station BS and also to use the portable telephone system of another system through the contiguous areas even if a fault occurs in a certain system.

8. 发明专利

JPS6378593A LATCHING CIRCUIT 失效
公开(公告)号：JPS6378593A
公开(公告)日：1988-04-08
申请号：JP22181586
申请日：1986-09-22
申请人： HITACHI LTD
发明人： HASHIDA MITSUYOSHI
IPC分类号： H03K3/02 , H03K3/037 , H05K3/02

9. 发明专利

JPS617267B2 JPS617267B2 - 失效
公开(公告)号：JPS617267B2
公开(公告)日：1986-03-05
申请号：JP2877679
申请日：1979-03-14
申请人： Hitachi Ltd
发明人： HASHIDA MITSUYOSHI
IPC分类号： G01R23/15 , G01R23/10 , H02H3/46 , H03K9/06

10. 发明专利

JPS60167556A MEASUREMENT METHOD OF THRESHOLD VALUE FOR CROSS CONTACT OF GROUND FAULT BATTERY 失效
公开(公告)号：JPS60167556A
公开(公告)日：1985-08-30
申请号：JP2180384
申请日：1984-02-10
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： HASHIDA MITSUYOSHI , HAYASHI TOSHIO
IPC分类号： H04M3/30
摘要： PURPOSE:To obtain a threshold value of ground fault detection by putting a constant current source into a line A which is set between the A line terminal and the earth of a subscriber's circuit, flowing a current to a line from a current source and measuring the potential of the line to confirm a ground fault detecting action. CONSTITUTION:A current IG of a constant current source 2 has a rise at a slope RS (RS: feed resistance of subscriber circuit) from a level 0. When the IG exceeds the threshold current IGTH for detection of ground fault, the feed resistance of the subscriber circuit is increased to the N-fold value by a protecting function. Then the IG has a sudden rise when IG=IGTH is satisfied. The potential of a line A is observed by a voltmeter, an oscilloscope, etc. while increasing the IG. Then the IG is equal to the IGTH when a sudden voltage change is produced.

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