公开(公告)号：US3875562A

公开(公告)日：1975-04-01

申请号：US35931173

申请日：1973-05-11

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK

IPC: H04Q3/52 ,  H03K17/00 ,  H04Q11/04 ,  H04Q3/00

CPC classification number: H04Q11/04

Abstract: An electronic selector for the exchange of PAM or PCM coded information without blocking is disclosed in which the number of outlets of the selector is equal to the number of inlets. Between each of the inlets and the outlets of the selector, an analog shift register is connected which for each pair of inlets and outlets comprises a first and a second stage. Each first stage is controlled by a selector inlet control unit which cyclically and sequentially activates the first stages, so that each PAM or PCM unit of information appearing on an inlet is stored in the first stage. The selector also contains a selector outlet control unit which, in dependence on a marker, cyclically activates a predetermined one of the second stages, so that the information stored in the first stage is transferred to the predetermined second stage and thereby to the desired outlet of the selector.

Abstract translation: 公开了一种用于交换PAM或PCM编码信息而不阻塞的电子选择器，其中选择器的出口数量等于入口数量。 在每个入口和选择器的出口之间，连接有模拟移位寄存器，其对于每对入口和出口包括第一和第二级。 每个第一级由选择器入口控制单元控制，该选择器入口控制单元循环地且顺序地启动第一级，使得出现在入口上的信息的每个PAM或PCM单元被存储在第一级中。 选择器还包括选择器出口控制单元，其根据标记循环地激活第二阶段中的预定的一个，使得存储在第一阶段的信息被转移到预定的第二阶段，从而转移到期望的出口 选择器。

公开(公告)号：US3591726A

公开(公告)日：1971-07-06

申请号：US3591726D

申请日：1968-10-25

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  HEMDAL GORAN ANDERS HENRIK

IPC: H04Q3/545 ,  H04Q3/47

CPC classification number: H04Q3/54533

Abstract: A method is disclosed for translations between a subscriber directory number consisting of a number of digits and a subscriber equipment number in a telecommunication equipment. There is a plurality of digit store cells for storing all possible digits which can occur in the different digit positions. The digit store cells with the lowest digit positions are directly associated to the subscriber equipment numbers. Address conversion cells each associated with a digit store cell contain a sum of two addresses, the address of a digit in the next higher digit position and the address of a digit in the next lower digit position. Upon translation in a first direction from the subscriber directory number to the subscriber equipment number a logical operation is carried out between the sum and the first address in order to obtain the address of the digit in the next lower digit position and upon translation in a second direction from the subscriber equipment number to the subscriber directory number a logical operation is carried out between the sum and the second address in order to obtain the address of the digit in the next higher digit position. Upon translation in the first direction a comparison of the digits in the first direction a comparison of the digits in the subscriber directory number is carried out with said digits in said digit store cells so as to find the address conversion cells and upon translation in the second direction a subscriber number digit is indicated which is found in the respective digit store cell whose address is obtained by the logical operation.

公开(公告)号：US3668330A

公开(公告)日：1972-06-06

申请号：US3668330D

申请日：1969-12-22

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK

IPC: H04M3/60 ,  H04Q3/545 ,  H04Q1/32

CPC classification number: H04Q3/545

Abstract: There is disclosed an arrangement in a stored program controlled telephone exchange for controlling devices emitting pulse series corresponding to dialed digits. The arrangement comprises a number of buffer units which are scanned, when a certain digit is to be emitted from a certain device, in order to determine either if there exists an idle unit from which the pulse series emitting device could be controlled or if there exists a unit in which there are a required number of control signals corresponding to the certain digit, in which latter case these signals are supplied to the device in question.

Abstract translation: 在存储的程序控制电话交换机中公开了一种用于控制发射对应于拨号数字的脉冲序列的设备的装置。 该装置包括当要从特定装置发射某个数字时扫描的多个缓冲单元，以便确定是否存在可控制脉冲序列发射装置的空闲单元，或者如果存在 其中存在与特定数字相对应的所需数量的控制信号的单元，其中后者将这些信号提供给所讨论的设备。

公开(公告)号：US3575607A

公开(公告)日：1971-04-20

申请号：US3575607D

申请日：1969-04-23

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  HEMDAL GORAN ANDERS HENRIK

IPC: H01H47/00 ,  G08C15/12

CPC classification number: G08C15/12 ,  Y10T307/826

Abstract: A circuit arrangement for indicating changes of state in one or several bistable elements, e.g. relays in the interval between two successive scannings of the elements. Each bistable element controls two make-and-break contacts, between which a capacitor is connected, a change of state of the element implying that the polarity of the appertaining capacitor is reversed. This reversing changes the state of an indication arrangement which is subject to the scannings, a change of state of the indication arrangement being recorded upon a scanning indicating that one or several bistable elements have changed their states.

公开(公告)号：US3668646A

公开(公告)日：1972-06-06

申请号：US3668646D

申请日：1970-06-10

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK

IPC: G06F9/46 ,  G06F9/48 ,  H04Q3/545 ,  G06F9/18

CPC classification number: G06F9/4825 ,  H04Q3/545

Abstract: The invention refers to a method of controlling jumps to different programs in a computer which works in real time. A number of programs associated with different priority levels are performed sequentially within subsequent primary intervals determined by a clock register. The programs associated with the different priority levels have to be addressed in periodically recurrent intervals of different length. After having performed a program a sum value is formed by addition of the contents of the clock register and a number corresponding to the number of subsequent primary intervals within which the addressing of the program has to be omitted. Within each primary interval the actual value of the clock register in priority order is compared with the sum values associated with the respective programs. If the value of the clock register upon comparison is found to have passed a sum value that one of the programs is addressed with which said sum value is associated.

Abstract translation: 本发明涉及一种控制实时工作的计算机中不同程序跳转的方法。 在由时钟寄存器确定的后续主时间间隔内顺序地执行与不同优先级相关联的多个节目。 与不同优先级相关联的程序必须以不同长度的周期性周期性间隔来解决。 在执行程序之后，通过添加时钟寄存器的内容和对应于其中不需要省略程序的寻址的后续主时间间隔的数量来形成和值。 在每个初级间隔内，将优先级顺序的时钟寄存器的实际值与与相应程序相关联的和值进行比较。 如果发现比较时的时钟寄存器的值已经通过一个和值，其中一个程序被寻址与哪个和值相关联。

公开(公告)号：US3644895A

公开(公告)日：1972-02-22

申请号：US3644895D

申请日：1970-02-05

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK ,  LENNMARKER NILS BERTIL

IPC: G06F13/10 ,  G06F3/06 ,  G06F5/10 ,  G06F13/22 ,  G11C15/00 ,  H04Q3/545 ,  G06F13/00 ,  H04Q3/54

CPC classification number: G06F5/10 ,  G06F13/22 ,  H04Q3/545

Abstract: A buffer store arrangement in a data controlled telecommunication system for delaying by a predetermined number of periods of a clock frequency the addressing of addresses separated by a restoration value. The arrangement comprises store cells with registering circuits and restoration circuits in the input side and reading circuits on the output side, a registering counter, a reading counter and a clock pulse generator. Each restoration circuit is connected to the clock pulse generator so that the restoration value is registered before the registering counter is activated. A data processor has an input register, which on its output is connectable to the registering circuits for registering data in a certain cell and to the registering counter for stepping at registering, and an output register. By setting the registering and reading counters so that they point out cells separated by a certain number of cells containing the restoration value, the desired delay is obtained which corresponds to the product of the clock pulse period and the said predetermined number of cells.

公开(公告)号：US3539746A

公开(公告)日：1970-11-10

申请号：US3539746D

申请日：1968-04-17

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK ,  BRUNBERG KARL GUNNAR

IPC: H01H39/00 ,  H01H61/00 ,  H01H35/34

CPC classification number: H01H39/00 ,  H01H61/00 ,  Y10S200/05

公开(公告)号：US3673577A

公开(公告)日：1972-06-27

申请号：US3673577D

申请日：1971-01-25

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  HEMDAL GORAN ANDERS HENRIK

IPC: G06F17/00 ,  H04Q3/545 ,  G05B23/02 ,  G06F11/06

CPC classification number: H04Q3/54591

Abstract: A process control computer scans test points arranged in groups to perform operations in accordance with changes in the states of the test points. The data store of the computer stores the states of the test points as words wherein each work represents a group of test points and the bits of the words represent the test points of the group. A flag resister of the data store comprises a group of bit cells with each bit cell being associated with one of the words. During the scan if the change of state of a test point changes, the associated bit in the data store is changed and the flange bit of the associated word is marked. Thereafter, the computer need only scan those words whose flag bits have been marked.

Abstract translation: 过程控制计算机扫描分组排列的测试点，以根据测试点状态的变化进行操作。 计算机的数据存储器将测试点的状态存储为单词，其中每个工作表示一组测试点，并且单词的位表示组的测试点。 数据存储器的标志寄存器包括一组位单元，其中每个位单元与一个单词相关联。 在扫描期间如果测试点的状态改变，数据存储器中的关联位被改变，并且相关联的字的法兰位被标记。 此后，计算机只需扫描标记位被标记的那些字。

公开(公告)号：US3653003A

公开(公告)日：1972-03-28

申请号：US3653003D

申请日：1970-05-01

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK

IPC: H04M15/16 ,  H04Q3/545 ,  G11C15/00 ,  G11C9/00

CPC classification number: H04Q3/545

Abstract: Apparatus for identifying those means of a plurality of means which have changed their binary state. A reference is sequentially obtained to only those means which have changed their state without spending unnecessary work sifting off the remaining means. The arrangement is particularly applicable in telecommunication systems, more especially such systems which have a central control, e.g., program store controlled systems in which the arrangement makes it possible to reduce considerably the idle load of a controlling computer.

Abstract translation: 用于识别已经改变其二进制状态的多个装置的装置的装置。 依次获得参考，只有那些已经改变了他们的状态而不花费不必要的工作来筛选剩余的手段的手段。 该装置特别适用于电信系统，更具体地说，这种具有中央控制的系统，例如程序存储控制系统，其中该装置可以显着地减少控制计算机的空载。

公开(公告)号：US3611304A

公开(公告)日：1971-10-05

申请号：US3611304D

申请日：1968-12-30

Applicant: ERICSSON TELEFON AB L M

Inventor： HEMDAL GORAN ANDERS HENRIK

IPC: G06F9/355 ,  G06F13/22 ,  G06F17/00 ,  H04Q3/545 ,  G06F9/20

CPC classification number: G06F9/355 ,  G06F13/22 ,  H04Q3/54591

Abstract: In a computer-controlled system of cooperating devices for example a telecommunication system, the condition of each of the devices is indicated by a unit of binary information in a position in a first storage area in the data store, and the condition of a group of positions in the first storage area is indicated in a position in a second storage area, so that instead of for example scanning the positions in the first storage area to determine the condition of the corresponding device, a faster scan can be executed by scanning the positions in the second storage area.