公开(公告)号：US3469021A

公开(公告)日：1969-09-23

申请号：US3469021D

申请日：1966-07-26

Applicant: ERICSSON TELEFON AB L M

Inventor： DAHLBLOM ROLF AUGUST ,  EDSTROM NILS HERBERT ,  SILWER JAN

IPC: H04L12/50 ,  H04Q11/04 ,  H04L15/04 ,  H04L15/24

CPC classification number: H04Q11/0407 ,  H04L12/50

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：US3482047A

公开(公告)日：1969-12-02

申请号：US3482047D

申请日：1964-09-09

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT

IPC: H04J3/06 ,  H04J3/12 ,  H04Q11/04

CPC classification number: H04J3/0626 ,  H04J3/0629 ,  H04J3/12 ,  H04Q11/04

公开(公告)号：US3925620A

公开(公告)日：1975-12-09

申请号：US32761273

申请日：1973-01-22

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  LINDQVIST STIG GUSTAF WILHELM ,  SPARRENDAHL GUNNAR ERIK WILLIA

IPC: H04Q11/04 ,  H04J3/00

CPC classification number: H04Q11/0407

Abstract: A PCM exchange comprises a space stage between a first and a second time stage, and has switching order memories for the control of time and space interchanges arranged in time substages each including a substage in the first time stage and a substage in the second time stage. Upon the connection and the disconnection of a communication path through the exchange, the respective switching order memories must be loaded with switching order information stored in a switching order unit. In order to reduce in a great extent a supplementary communication system between the switching order unit and the decentralized switching order memories, the switching order information is transferred via the space stage to the respective time substages via the same files on which the regular PCM words are transferred. The switching order information is transferred during unchangeably predetermined time slots which are not used for the transmission of PCM words.

Abstract translation: PCM交换机包括在第一和第二时间段之间的空间级，并且具有用于控制时间和空间交换的切换顺序存储器，时间和空间交换机设置在时间分段中，每个子站包括第一时间段中的分站和第二时间段中的分站 。 在通过交换机的通信路径的连接和断开连接时，相应的交换顺序存储器必须加载存储在交换订单单元中的交换订单信息。 为了在很大程度上减少切换顺序单元和分散式交换顺序存储器之间的辅助通信系统，切换顺序信息经由空间级通过常规PCM单词所在的相同文件传送到各个时间段 转入。 切换顺序信息在不用于传输PCM字的不可更改的预定时隙期间传送。

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：US3894189A

公开(公告)日：1975-07-08

申请号：US32563973

申请日：1973-01-22

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  LINDQVIST STIG GUSTAF WILHELM ,  SPARRENDAHL ERIK WILLIAM

IPC: H04Q11/04

CPC classification number: H04Q11/0407

Abstract: A method for operating file gates arranged in the space stage of a time-space-time PCM exchange wherein each operation is carried out during one time slot chosen for space interchange of an actual PCM word is disclosed. The time slot is divided into two halves. In the first half, the space stage receives on an incoming file an address allotted to an outgoing file. In the second half the incoming file receives the actual PCM word. During both halves the address is stored and decoded. By means of the decoding there is activated the file gate which connects the incoming file to the outgoing file. Thus the actual PCM word is transferred during the second half to said outgoing file.

Abstract translation: 公开了一种布置在时空时间PCM交换机的空间级中的文件门的方法，其中在为实际PCM字的空间交换选择的一个时隙期间执行每个操作。 时隙分为两半。 在上半场，空间阶段在传入文件上接收分配给传出文件的地址。 在下一半中，传入文件接收实际的PCM字。 在两半时间内，地址被存储和解码。 通过解码，激活连接传入文件到传出文件的文件门。 因此，实际的PCM字在下一半期间传送到所述传出文件。

公开(公告)号：US3864525A

公开(公告)日：1975-02-04

申请号：US32505773

申请日：1973-01-19

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT ,  LINDQVIST STIG GUSTAF WILHELM ,  SPARRENDAHL GUNNAR ERIK WILLIA

IPC: H04Q11/04

CPC classification number: H04Q11/0407

Abstract: A time stage system included in a PCM exchange working according to the time-space-time principle is connected to incoming and outgoing transmission links on which PCM words are received and sent out, and further connected to files ( highways) on which said PCM words are transferred to and from file contact planes for space switching. In order to decentralize the control of the time switching, the time stage system is divided into time substages each of which being connected to associated incoming and outgoing links. Each time substage is divided in time stage units each of which being connected to the associated links and to two associated files of which one goes to and the other comes from the file contact plane cooperating with the time stage unit. Each time substage includes as many time stage units as there are file contact planes. For time switching, each time stage unit comprises word memories and index memories. The PCM words are written cyclically into the word memories from which they are read randomly with the aid of indexes stored in the index memories or vice versa. For allotting address numbers to the PCM words, each time stage unit comprises an address memory connected to the outgoing file. Blocking devices guarantee that writing and reading never coincide in the same word memory and that an address number defining the space switching for a PCM word is transferred to the respective file contact plane immediately before such PCM word.

Abstract translation: 包括在根据时空原理工作的PCM交换机中的时段系统连接到接收和发送PCM字的传入和传出传输链路，并进一步连接到所述PCM（=高速公路）上，其中所述PCM 文字传输到文件联络平面进行空间切换。 为了分散时间切换的控制，时段系统被划分成时分段，每个时分都连接到相关联的传入和传出链路。 每个时间段分为时间段单元，每个单元都连接到相关联的链路，并且两个相关联的文件中的一个到达另一个，另一个来自与时间段单元协作的文件接触面。 每个分站包括与文件接触平面一样多的时段单元。 对于时间切换，每个时段单元包括字存储器和索引存储器。 借助于存储在索引存储器中的索引，循环地将PCM字写入随机读取的字存储器中，反之亦然。 为了将地址号分配给PCM字，每个时段单元包括连接到输出文件的地址存储器。 阻塞装置保证写入和读取在同一个字存储器中不会重合，并且定义PCM字的空间切换的地址号码将在这种PCM字之前立即传送到相应的文件接触面。

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：US3524940A

公开(公告)日：1970-08-18

申请号：US3524940D

申请日：1966-10-17

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM NILS HERBERT

IPC: H04M7/14 ,  H04Q3/545 ,  H04M3/54 ,  H04M3/60

CPC classification number: H04Q3/545