公开(公告)号：WO1984000260A1

公开(公告)日：1984-01-19

申请号：PCT/US1983000859

申请日：1983-06-03

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  DUTTWEILER, Donald, Lars ,  GRITTON, Charles, William, Kevin ,  TAO, Ying, Get

IPC: H03H07/01

CPC classification number: H04B3/23 ,  H03H21/0012 ,  H04B3/231

Abstract: Loop gain normalization is employed in adaptive filters to control weighting of the filter characteristic updates in order to converge properly to a desired filter characteristic. Filter stability and rapid high quality convergence is realized for a variety of received or inputted signals by employing both long term and fast attack estimates of a prescribed input signal characteristic to control the update gain. In one embodiment, both long term (201) and fast attack (202) input signal power estimates are generated and one of the two estimate values is selected (204) to control the update gain. Specifically, the fast attack estimate is modified by a predetermined value (203) and, then, the larger of the long term estimate and modified fast attack is selected (204) to control the update gain.

公开(公告)号：WO1984000220A1

公开(公告)日：1984-01-19

申请号：PCT/US1983000094

申请日：1983-01-24

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  NARAYANAN, C., Murali ,  SLOAN, Donald, Richard ,  ZEE, Benjamin

IPC: G06F03/04

CPC classification number: G06F13/364

Abstract: A digital system has a resource, such as a communication bus (28), adapted for a access by a plurality of devices, a plurality of devices (0-15) adapted to access the resource, and an arbitrator (27) for arbitrating access to the resource by the devices. The arbitrator includes programmable means (24) for designating order of priority of the devices for accessing the resource, which means are reprogrammable to change the order. The means are further adapted to periodically redetermine the designated priority order in a specified manner, which manner can be changed by reprogramming the means. The priority determining manner may include a constant decreasing priority, a round-robin priority, or a combination of the two. Selecting means (70) responsive to the requesting devices and to the priority designating means select the highest priority requesting device for access to the resource, and access granting means (69) grant to the selected device access to the resource.

Abstract translation: 数字系统具有适于由多个设备访问的适于访问资源的多个设备（0-15）的资源（例如通信总线（28））和用于仲裁访问的仲裁器（27） 通过设备到资源。 仲裁器包括用于指定用于访问资源的设备的优先级顺序的可编程装置（24），这意味着可重新编程以改变顺序。 该装置进一步适于以指定的方式周期性地重新确定指定的优先权顺序，哪种方式可以通过重新编程手段来改变。 优先级确定方式可以包括不断降低的优先级，循环优先级或两者的组合。 响应于请求设备和优先级指定装置的选择装置（70）选择用于访问资源的最高优先级请求装置，并且访问授权装置（69）授予所选择的设备对资源的访问。

公开(公告)号：WO1983004461A1

公开(公告)日：1983-12-22

申请号：PCT/US1983000030

申请日：1983-01-11

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  EVERHART, Joseph, Robert ,  OSBORN, Jeffrey, George

IPC: H04L09/00

CPC classification number: H04L9/0841 ,  H04L9/083

Abstract: Encryption systems typically rely on the distribution of cipher keys between terminals for scrambling and unscrambling transmitted messages. Elaborate security precautions are necessary to protect the cipher keys since a compromise of the key could result in a compromise of the transmission. There is disclosed a key distribution method and apparatus which uses a channel (14, 15, 18) from identified terminals (A, B, X) to a central key distribution center (KDC) for the establishment, on a one-session basis, of the key which is to be used for the next session between those terminals. The key establishing link (16) is itself encoded using a cipher key which changes after each usage. Provision is made to verify, for each new connection, that a compromise has not priorly occurred.

公开(公告)号：WO1983004343A1

公开(公告)日：1983-12-08

申请号：PCT/US1983000696

申请日：1983-05-09

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  ALSPECTOR, Joshua ,  KINSBRON, Eliezer ,  STERNHEIM, Marek, Andre

IPC: H01L21/82

CPC classification number: H01L28/40

Abstract: Polyoxide capacitors for semiconductor integrated circuits having oxide dielectric films (18) of 500 Angstroms or less are fabricated using in-situ doped polysilicon layers (17) to have electrical field breakdowns of from 6 to 9 MV/cm. The first polysilicon layer (17) is formed by LPCVD using silane and phosphene at a temperature in the range from about 570 degrees C to 595 degrees C. These capacitors are relatively precisely valued devices used particularly in applications such as filter/codecs. However, they are useful wherever integral capacitors are needed having high dielectric strength polyoxides, including such semiconductor integrated circuit devices as EPROMs and dynamic RAMs.

公开(公告)号：WO1983004116A1

公开(公告)日：1983-11-24

申请号：PCT/US1983000542

申请日：1983-04-14

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  HUANG, Alan

IPC: G06F07/00

CPC classification number: G06F7/78 ,  G06F7/24 ,  Y10S707/99937

Abstract: A serial chain of N sorting modules (700) is arranged to sort batches of up to N items in a desired sequence in accordance with value of the items. Each sorting module is arranged to compare two input items, to select one item for transfer to the next module, depending upon the relative value of the items, and to simultaneously accept the next item from the previous module. The value of the items can be numeric, alphabetic, etc. In accordance with the invention, each module is also arranged to detect the occurrence of an item having a unique value which indicates the beginning of batch of items. Upon detection, each module passes the items in the same order as they were received, independent of their value. The chain of modules may sort records each having data and an associated key by applying the keys to the sorting circuits and the data to the slave circuits (750). Record sorting can be used to interchange the time slots of a time-division multiplexed signal, or to rearrange empty slots such that they can be utilized.

公开(公告)号：WO1983004111A1

公开(公告)日：1983-11-24

申请号：PCT/US1983000627

申请日：1983-04-29

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  BOYD, Gary, Delane ,  CHENG, Julian

IPC: G02F01/13

CPC classification number: G02F1/132 ,  G02F1/1391

Abstract: A row (102-1) and column matrix (101-2) of strip electrodes is utilized for switching bistable liquid crystal display cells from the vertical state to the horizontal state via resistive heating by applying an electric current of sufficient magnitude and duration to selected electrodes (102-1, 102-2). Resistive heating causes the liquid crystal (130) to undergo a phase transition from the nematic mesophase to an isotropic phase. Extinction of the current permits the liquid crystal to cool preferentially into the horizontal state of the nematic mesophase. Horizontal-to-vertical state switching is performed by conventional electric field effect techniques. Faster operating devices are thus made possible.

Abstract translation: 利用带状电极的行（102-1）和列矩阵（101-2），通过施加足够大和持续时间的电流至选定的电阻，通过电阻加热将双稳态液晶显示单元从垂直状态切换到水平状态 电极（102-1,102-2）。 电阻加热导致液晶（130）从向列型中间相发生相变到各向同性相。 电流的消光允许液晶优先冷却到向列型中间相的水平状态。 通过常规电场效应技术进行水平垂直状态切换。 因此，更快的操作装置成为可能。

公开(公告)号：WO1983003822A1

公开(公告)日：1983-11-10

申请号：PCT/US1983000449

申请日：1983-03-30

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  RIDGWAY, David, Nolen

IPC: C03B37/16

CPC classification number: G02B6/25 ,  Y10T29/49195 ,  Y10T225/12 ,  Y10T225/325 ,  Y10T225/357

Abstract: Optical fibers are cleaved with high precision by a technique that yields flat endfaces that are perpendicular to the axis of the fiber within 1 degree, and typically within 0.5 degree. This is very advantageous for obtaining low loss splices of fibers, especially single mode fibers. In the present technique, a fiber (101) is secured in two linearly aligned chuks (102, 108) in a sequence that allows one end to rotate unconstrained to minimize tortion. An axial tension is then applied in the fiber, which is next scored. The fiber then typically breaks, but cleaving can be promoted by applying further tension, or introducing moisture, if necessary.

公开(公告)号：WO1983003728A1

公开(公告)日：1983-10-27

申请号：PCT/US1983000496

申请日：1983-04-07

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  GAVRILOVICH, Charles, Dan

IPC: H04M03/36

CPC classification number: H04M3/08 ,  H04M3/36

Abstract: A method for detecting defective communications circuits in a telecommunications system. Communications circuits are arranged in groups according to destination. Unacknowledged communications are counted for each group. A group whose incidence of such unacknowledged communications is especially high is likely to contain one or more defective communication circuits. More detailed measurements, including a count of attempts to use each member of such a group, are then taken to identify individual defective communication circuits. A communication circuit having an especially high count of attemps to use is likely to be defective.

Abstract translation: 一种用于检测电信系统中的有缺陷的通信电路的方法。 通信电路根据目的地分组安排。 未确认的通信被统计为每个组。 这种未确认通信的发生率特别高的组可能包含一个或多个有缺陷的通信电路。 然后采取更详细的测量，包括尝试使用这种组的每个成员的计数，以识别各个有缺陷的通信电路。 具有特别高的使用次数的通信电路可能是有缺陷的。

公开(公告)号：WO1983003508A1

公开(公告)日：1983-10-13

申请号：PCT/US1983000409

申请日：1983-03-23

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  HUIZINGA, Donald, Dean ,  MEANS, Donald, Richard ,  UNDERHILL, Edward, William

IPC: H04M01/31

CPC classification number: H04M1/312

Abstract: Afin d'étendre le service téléphonique par bouton-poussoir aux systèmes téléphoniques non équipés pour répondre aux signaux de composition de numéros à fréquence multiple, il est nécessaire de convertir les numéros composés par bouton-poussoir en des impulsions conventionnelles de composition. Un train d'impulsions se composant d'intervalles d'établissement et d'interruption de contacts représentant le numéro composé est converti électroniquement (107) en des séries correspondantes d'intervalles d'établissement et d'interruptions de contacts sur la ligne téléphonique (102, 103) en commutant en position "MARCHE" et "ARRET" (106, 108-1, 108-2) un transistor d'impulsions (101) qui est en série avec la ligne téléphonique. Afin de maintenir le transistor d'impulsions en position "MARCHE" pendant les intervalles de non composition de numéros et pendant chaque intervalle d'établissement de contact, et afin de ne pas atténuer les signaux vocaux, le transitor d'impulsions est polarisé par une source réglable de courant (105). Le courant nécessaire pour polariser en position "MARCHE" le transistor d'impulsions est en rapport linéaire avec le courant de la ligne téléphonique circulant au travers du chemin émetteur-collecteur de transistor, et variant considérablement d'une station à l'autre. Afin de réduire au minimum le courant nécessaire pour polariser le transistor d'impulsions, un détecteur de courant (104) dérive un signal proportionnel au courant de ligne qui est réinjecté à son tour vers la source de courant (105) afin de réguler le courant de polarisation pour qu'il soit proportionnel au courant de ligne.

公开(公告)号：WO1983003179A1

公开(公告)日：1983-09-15

申请号：PCT/US1983000242

申请日：1983-02-24

Applicant: WESTERN ELECTRIC COMPANY, INC.

Inventor： WESTERN ELECTRIC COMPANY, INC. ,  THELEN, William

IPC: H04Q09/00

CPC classification number: H04L12/40032 ,  H04L12/413

Abstract: Un système multipoints amélioré d'accès à la communication de données, avec détection de conflits, comprend un support duplicateur de communication (1010, 1011), des unités d'interface de réseau (1112, 1119, 1123) adaptées pour être connectées à des émetteurs-récepteurs (1125, 1126, 1129) sur les deux supports, des émetteurs-récepteurs adaptés pour être connectés à une pluralité d'unités d'interface de réseau, et un circuit local de détection de conflits (1130) associé à chaque émetteur-récepteur et qui détecte des conflits entre des tentatives simultanées de transmission par deux ou plusieurs unités d'interface de réseau connectées à l'émetteur-récepteur.