公开(公告)号：US4945528A

公开(公告)日：1990-07-31

申请号：US235254

申请日：1988-08-22

申请人： Jan H. Crasemann

发明人： Jan H. Crasemann

IPC分类号： G11B5/02 ,  G11B11/10 ,  G11B11/105

CPC分类号： G11B11/1053 ,  G11B11/10506 ,  G11B11/10584

摘要： In erasable magneto-optical storage layers an improvement of the signal-to-noise ratio during reading is achieved, in that during recording the laser pulse is resolved into a sequence of short pulses, the pulse spacings between the individual pulses being suitably equal to the pulse duration.

摘要翻译： 在可擦除磁光存储层中，实现读取期间信噪比的改善，因为在记录期间，激光脉冲被分解为短脉冲序列，各个脉冲之间的脉冲间隔适当地等于 脉冲持续时间。

公开(公告)号：US4943998A

公开(公告)日：1990-07-24

申请号：US342256

申请日：1989-04-21

申请人： Uwe Bauer

发明人： Uwe Bauer

IPC分类号： H04M3/36 ,  H04Q3/00

CPC分类号： H04Q3/0016 ,  H04M3/36

摘要： A communication network having exchanges and groups of communication lines between the exchanges. Subscriber calls initiate forward messages over all possible groups of communication lines to search for the called party at every exchange. Each exchange includes a terminal module which is callable and capable of calling like a subscriber and which stores data about traffic and the exchange operation, and an external interface. A portable operating station can connect to the interface at any exchange of the network and call every terminal module over the communication lines to determine the network topology and condition.

摘要翻译： 交换机之间具有交换和通信线路组的通信网络。 用户呼叫在所有可能的通信线路组中发起转发消息，以在每个交换机上搜索被叫方。 每个交换机包括终端模块，其可呼叫并能够像用户一样进行呼叫，并且存储关于业务和交换操作的数据，以及外部接口。 便携式操作台可以在任何交换网络上连接到接口，并通过通信线路呼叫每个终端模块，以确定网络拓扑和状况。

公开(公告)号：US4937227A

公开(公告)日：1990-06-26

申请号：US218010

申请日：1988-07-12

申请人： Ulrich E. Enz ,  Jacobus J. M. Ruigrok ,  Victor Zieren

发明人： Ulrich E. Enz ,  Jacobus J. M. Ruigrok ,  Victor Zieren

IPC分类号： G11B5/31

CPC分类号： G11B5/3126 ,  Y10S505/701

摘要： Thin-film magnetic head including an inductive transducing element (15) and a face (3) for magnetic flux coupling of the transducing element with a magnetic recording medium. A first magnetically permeable layer (5) and a second similar layer (7) together constitute a transducing gap (11). To improve the transducing function a layer (21) of a superconducting material is provided between the layers (5) and (7).

公开(公告)号：US4933752A

公开(公告)日：1990-06-12

申请号：US352422

申请日：1989-05-16

申请人： Jacobus A. G. De Rooij

发明人： Jacobus A. G. De Rooij

IPC分类号： H04N5/225 ,  H04N5/335 ,  H04N9/07 ,  H04N9/097

CPC分类号： H04N9/097

摘要： The invention relates to an optical assembly for a camera comprising a color-separation system 1 having three exit windows 3, 4 and 5. A solid-state image sensor 6, 7 and 8 is fixed in a desired position to each exit window 3, 4 and 5 by means of a holder 9, 10 and 11. Each holder 9, 10 and 11 comprises a first holder plate 12, 13, 14 having an aperture 45, 46, 47 and a second holder plate 15, 16, 17 having an aperture 48, 49, 50 and an elastically deformable element 18, 19, 20 which surrounds the apertures of a holder.

公开(公告)号：US4930115A

公开(公告)日：1990-05-29

申请号：US190558

申请日：1988-05-05

申请人： Johannes J. Verboom ,  Constant P. M. J. Baggen ,  Cornelis M. J. Van Uijen ,  Erik W. Gaal

发明人： Johannes J. Verboom ,  Constant P. M. J. Baggen ,  Cornelis M. J. Van Uijen ,  Erik W. Gaal

IPC分类号： G11B20/12 ,  G11B7/00 ,  G11B7/004 ,  G11B20/14 ,  H03M7/14

CPC分类号： G11B20/1426

摘要： A method of and device for recording an information signal (Vc) on a record carrier (1) are revealed. The information words of the information signal are converted into code words (200) comprising a variable number of bits of a first logic value ("1"). The number of consecutive bits of the first logic value is at least equal to P. the number of consecutive bits of the second logic value ("0") is at least Q, P being an integer greater than or equal to 1 and Q being an integer greater than P. the code words are selected in such a way that for information words of successive values the associated code words differ for only one bit. During recording an elementary mark (54) is formed on the record carrier for every bit of the first logic value. Moreover a read device for the record carrier thus obtained is described.

公开(公告)号：US4928389A

公开(公告)日：1990-05-29

申请号：US103079

申请日：1987-09-29

申请人： Harald Melwisch ,  Norbert Schneider

发明人： Harald Melwisch ,  Norbert Schneider

IPC分类号： B26B19/04

CPC分类号： B26B19/04

摘要： In a shaving head (4) for a dry-shaving apparatus comprising a shaving-head frame (5) for detachably mounting an arcuate shear foil (6) which at both ends of at least one of its two longitudinal edges (7, 8) comprises projections (11, 12, 13, 14) associated with slots (22, 23) in the adjacent side walls (20, 21) of the shaving-head frame, into which slots the projections can be inserted when the shear foil is mounted on the shaving-head frame, the shear foil being secured to the shaving-head frame by means of at least one raised portion (26, 27, 28) which comprises at least one ramp (29) which is upwardly inclined in the direction of insertion, which projects from the shaving-head frame, and which engages beneath the relevant longitudinal edge of the shear foil, at least one such raised portion on the longitudinal member of the shaving-head frame adjacent the relevant longitudinal edge of the shear foil is arranged at a distance from the slots in the side walls of the shaving-head frame which constitute the lateral guide means for the projections on the shear foil, said raised portion comprising a further ramp (30) which is downwardly inclined in the direction of insertion and which substantially adjoins the ramp (29) which is upwardly inclined in the direction of insertion.

摘要翻译： 在用于干剃剃装置的剃削头（4）中，包括用于可拆卸地安装弓形剪切箔（6）的剃削头框架（5），所述剃削头框架在其两个纵向边缘（7,8）中的至少一个的两端处， 包括与剃须头框架的相邻侧壁（20,21）中的狭槽（22,23）相关联的突起（11,12,13,14），当安装剪切箔时，突起可插入该槽中 在剃须刀架上，剪切箔通过至少一个凸起部分（26,27,28）固定到剃须刀架上，所述至少一个凸起部分包括至少一个斜面（29），该斜面沿着 插入件，其从剃须刀架框架突出并且接合在剪切箔的相关纵向边缘下方，在剃须刀架的纵向构件上的与剪切箔的相关纵向边缘相邻的至少一个这样的凸起部分是 布置在与剃须头框架的侧壁中的狭槽一定距离处 e，其构成用于在剪切箔上的突起的横向引导装置，所述凸起部分包括另外的斜面（30），该斜面在插入方向上向下倾斜，并且基本上与斜面（29）相邻，所述斜面 的插入。

公开(公告)号：US4923290A

公开(公告)日：1990-05-08

申请号：US232741

申请日：1988-08-16

申请人： Ernst Brinkmeyer ,  Wolfgang Brennecke ,  Rainer J. R. W. Otto

发明人： Ernst Brinkmeyer ,  Wolfgang Brennecke ,  Rainer J. R. W. Otto

IPC分类号： G02F1/03 ,  G02B27/28 ,  G02F1/01

CPC分类号： G02F1/0136 ,  G02F1/0134

摘要： The invention relates to a polarization scrambler comprising a controllable optical phase retardation element for retarding with respect to one another components of a light beam with a different state of polarization, the light beam propagating through the element, and a control arrangement for controlling the phase retardation element, said control arrangement being adapted to supply a control signal so that as a function of time the phase retardation is controlled in such a way that with a given state of polarization (SOP) of the light entering the polarization scrambler varying states of polarization occur at its output in such a way that, averaged in time, the light intensities emerging in each SOP are at least substantially equal. An arrangement suitable for arbitrary input states of polarization is obtained when at least a further controllable phase retardation element (2, 3) connected to a control arrangement and succeeding the first element in the light propagation direction is provided which, represented on the Poincare sphere, creates states of polarization in accordance with a rotational axis which is different from that associated with the first phase retardation element and in that the phase retardation elements (1, 2, 3 ) are controlled by the control arrangement at different frequencies (f.sub.1, f.sub.2, f.sub.3) or in an uncorrelated aperiodical manner.

摘要翻译： 本发明涉及一种偏振扰乱器，其包括可控光学相位延迟元件，用于相对于具有不同偏振态的光束的彼此分量进行延迟，光束传播通过元件，以及用于控制相位延迟的控制装置 所述控制装置适于提供控制信号，使得随着时间的推移，相位延迟被控制为使得进入偏振加扰器的光的偏置的给定状态（SOP）发生在极化状态变化状态 其输出方式使得在每个SOP中出现的光强度在时间上平均至少基本相等。 当在Poincaré球上表示至少一个连接到控制装置并在光传播方向上连接第一元件的可控相位延迟元件（2,3）时，可以获得适合于任意输入偏振状态的装置， 根据不同于与第一相位延迟元件相关联的旋转轴产生偏振状态，并且相位延迟元件（1,2,3）由控制装置在不同频率（f1，f2， f3）或以不相关的非周期性方式。

公开(公告)号：US4920287A

公开(公告)日：1990-04-24

申请号：US265660

申请日：1988-11-01

申请人： Cornelis D. Hartgring ,  Jan Dikken ,  Tiemen Poorter

发明人： Cornelis D. Hartgring ,  Jan Dikken ,  Tiemen Poorter

IPC分类号： H01L21/8234 ,  H01L27/088 ,  H01L29/78 ,  H03K17/10 ,  H03K19/003 ,  H03K19/0948

CPC分类号： H03K19/00361 ,  H03K19/00315

摘要： A digital circuit with a 5 V power supply voltage in which NMOS transistors constructed in sub-micron technology are protected against excessive field strengths by means of additional transistors in order to prevent so-called "hot carrier stress" for this purpose the additional transistors have a greater channel length and/or a higher threshold voltage.

公开(公告)号：US4918379A

公开(公告)日：1990-04-17

申请号：US239090

申请日：1988-08-31

申请人： Abraham Jongepier

发明人： Abraham Jongepier

IPC分类号： G01R31/317 ,  G01R31/28 ,  G01R31/3185 ,  G06F11/273 ,  G11C29/00 ,  G11C29/02 ,  G11C29/56 ,  H01L21/66 ,  H01L21/822 ,  H01L27/04

CPC分类号： G01R31/318536 ,  G01R31/318558 ,  G06F11/2736

摘要： For the testing of an integrated monolithic circuit (IC) the integrated monolithic circuit with a test bus which extends along a functional part of the circuit which is partitioned into macro circuits and which is coupled to the macro circuits, each macro circuit comprising a test interface circuit which is connected in series with test interface circuits of the other macro circuits; via the test interface circuits, the macro circuits can be coupled to the test bus. As a result, macro circuits can be separately tested and in the case of a hierarchic design of integrated circuits, utilizing previously designed marco circuits and test programs for previously designed macro circuits, test development times can be substantially reduced; this is an increasingly important aspect of increasingly complex circuits.

公开(公告)号：US4911528A

公开(公告)日：1990-03-27

申请号：US296459

申请日：1989-01-12

申请人： Remy Polaert

发明人： Remy Polaert

IPC分类号： G02B6/06 ,  G02B13/08

CPC分类号： G02B6/06 ,  G02B13/08

摘要： Anamorphotic optical system transmitting an image while deforming it in one direction and leaving it undeformed in a substantially perpendicular direction. It comprises a main fibre-optical image guide (210) cemented to an exit face (213, 213.sub.2) of at least one beveled supplementary fibre-optical guide (220, 220.sub.2), the axes of the optical fibres of the two guides (210, 213, 213.sub.2) being not parallel to one another. Thus, the magnification of the image is not uniform in the direction of deformation. The transmitted image has either at least two parts each representing a different magnification, or a progressive deformation in the direction of the deformation.

摘要翻译： 变形光学系统在使图像沿一个方向变形并使其在基本上垂直的方向上未变形的同时传送图像。 它包括一个胶合到至少一个斜面的辅助光纤（220,2202）的出射面（213,2133）上的主光纤图像引导件（210），两个引导件（210）的光纤的轴线 ，213,2132）彼此不平行。 因此，图像的倍率在变形方向上不均匀。 透射图像具有至少两个部分，每个部分表示不同的放大倍数，或者在变形方向上的逐渐变形。