公开(公告)号：US3684833A

公开(公告)日：1972-08-15

申请号：US3684833D

申请日：1969-11-10

Applicant: BELL TELEPHONE LABOR INC

Inventor： BUSH STANLEY E ,  CROUSE PARKER E ,  SALTUS GEORGE E

IPC: H04Q3/58 ,  H04M3/00 ,  H04N7/14 ,  H04Q3/62 ,  H04M11/08 ,  H04M1/00

CPC classification number: H04Q3/625

Abstract: A key telephone system is arranged to provide wideband service to any number of stations served by the system. Wideband switches are associated with each station on a per-line basis and are arranged to function in conjunction with the associated station and with a line circuit common to all the stations to establish wideband connections selectively to any station. The switches on each line are connected such that wideband capability for that line is available only to one station at a time on a priority basis. The system is arranged such that a wideband connection may be made to a line only when at least one station associated with that line is available for such service.

Abstract translation: 一个关键的电话系统被安排为系统服务的任何数量的电台提供宽带服务。 宽带交换机在每个线路上与每个站相关联，并且被布置为与相关联的站并且与所有站共用的线路电路一起工作，以选择性地建立到任何站的宽带连接。 连接每条线路上的开关，使得该线路的宽带能力在优先的基础上一次只可用于一个电台。 该系统被布置成使得仅当与该线路相关联的至少一个站可用于这种服务时，可以对线路进行宽带连接。

公开(公告)号：US3454826A

公开(公告)日：1969-07-08

申请号：US3454826D

申请日：1967-05-05

Applicant: BELL TELEPHONE LABOR INC

Inventor： BUSH STANLEY E ,  CROUSE PARKER E

IPC: H05B37/02 ,  H05B7/02 ,  H01K1/62 ,  H01K9/00

CPC classification number: H05B37/02