公开(公告)号：US3716674A

公开(公告)日：1973-02-13

申请号：US3716674D

申请日：1970-10-15

Applicant: PORTA SYSTEMS CORP

Inventor： MANOS G

IPC: H04Q3/42 ,  H04M3/22

CPC classification number: H04Q3/42

Abstract: IN A TELEPHONE SYSTEM EMPLOYING COMMON SNEDER EQUIPMENT AN AUTOMATIC INTERRUPTER CIRCUIT FOR CONNECTION TO A COMMON SENDER FOR DISCONNECTING SAID COMMON SENDER FROM A PARTICULAR SUBSCRIBER LINE AFTER A PREDETERMINED PERIOD OF INACTIVITY UPON SAID PARTICULAR SUBSCRIBER LINE, THE AUTOMATIC INTERRUPTER CIRCUIT COMPRISES A TIMING PULSE GENERATOR ADAPTED TO FEED PULSES HAVING A PREDETERMINED WIDTH AND SELECTIVELY VARIABLE REPETITION RATE TO SAID COMMON SENDER TO CAUSE DISCONNECTION OF THE SAME FROM SAID PARTICULAR SUBSCRIBER LINE AFTER THE RECEPTION OF TWO SUCCESSIVE PULSES. THE TIMING PULSE GENERATOR COMPRISES A PULSE SHAPING NETWORK CONNECTED TO A FREQUENCY DIVIDER, IN TURN CONNECTED TO A BINARY COUNTER, THE OUTPUT OF SAND BINARY COUNTER BEING APPLIED AS A FIRST INPUT TO A TIME COINCIDENCE GATE DECODER AND THE SECOND INPUT THERETO BEING OBTAINED FROM A TIME SELECTOR SWITCH. THE OUTPUT OF SAID BINARY COUNTER IS ALSO CONNECTED AS AN INPUT TO A DRIVE SIGNAL DECODER AND WHEN A COINCIDENCE IS DETECTED BY SAID TIME COINCIDENCE GATE DECODER A RESET PULSE IS FED THEREFROM TO SAID BINARY COUNTER WHICH RESULTS IN A PULSE HAVING A FIXED DURATION AT THE OUTPUT OF SAID DRIVE SIGNAL DECORDER, WHICH FIXED DURATION PULSE IS INDICATIVE OF THE SELECTED REPETITION RATE OF THE TIMING PULSE GENERATOR.

D R A W I N G

公开(公告)号：US3752940A

公开(公告)日：1973-08-14

申请号：US3752940D

申请日：1972-07-10

Applicant: PORTA SYSTEMS CORP

Inventor： SANTULLI V ,  ROUMANOS W ,  MANOS G ,  GAZZO J

IPC: H04M3/26 ,  H04M3/00 ,  H04M3/30 ,  H04Q3/545

CPC classification number: H04M3/30

Abstract: Card programable line verification tester apparatus iteratively and automatically establishes connections via old and replacement (e.g., ESS) switching apparatus to subscriber loop appearances on a main distributing frame. The assumed continuous tip and ring conduction paths are then tested for faults such as spurious battery, or short, open, high impedance or crossed connections.

Abstract translation: 卡可编程线路验证测试仪器通过旧的和替换（例如，ESS）交换设备自动建立到主分配帧上的用户环路外观的连接。 然后测试假设的连续尖端和环形导电路径，以防止诸如伪电池或短路，开路，高阻抗或交叉连接之类的故障。

公开(公告)号：US3842218A

公开(公告)日：1974-10-15

申请号：US31381772

申请日：1972-12-11

Applicant: PORTA SYSTEMS CORP

Inventor： DELUCA P ,  SANTULLI V ,  MICKOWSKI J ,  GAZZO J ,  MANOS G

IPC: H04M3/30 ,  H04B3/46

CPC classification number: H04M3/30

Abstract: Line condition reporting and subscriber polling apparatus employs a central processor for accessing subscriber cable pair via one of plural interface circuits, a trunk selection matrix, a test or no-test trunk, and the subscriber''s central office. Subscriber lines may be seized in accordance with manual or automatically entered information via system input terminals, and an operative code-forming part of the input command, determines whether the system will operate in a line testing and/or polling (as utility meter) mode.

Abstract translation: 线路状况报告和用户轮询设备采用中央处理器，用于通过多个接口电路，中继线选择矩阵，测试或无测试中继线之一以及用户的中心局接入用户电缆对。