公开(公告)号：AU4654100A

公开(公告)日：2000-11-10

申请号：AU4654100

申请日：2000-04-21

Applicant: ADC TELECOMMUNICATIONS INC

Inventor： OFTEDAHL RICK ,  BROWN JEFFREY O ,  CARLSON CRAIG ,  KELLER JOHN C ,  MANDERFIELD SARA

IPC: H04B10/00 ,  H04N7/10 ,  H04N7/22

Abstract: A switch apparatus is used in the transmission of a redundant Cable TV (CTV) signal. The redundant CTV signal can be a symmetric split linked redundant CTV signal or an asymmetric split linked redundant CTV signal. The switch apparatus is capable of handling both the symmetric and asymmetric redundant CTV signal where primary channels are split into multiple parts. The asymmetrical splitting of the primary channels is where one part contains more channels than another part. The switch apparatus includes a plurality of switches and a monitor device to detect a failure in the split signal path before the split signals are combined to be transmitted to downstream end-users. Upon detecting a failure, the switches are switched from primary channels to secondary channels by a controller. After the signal is returned, the switches are switched back to the primary channels. A delay timer may be included in the switch apparatus to avoid incidental or temporary signal recovery.

公开(公告)号：AU1950501A

公开(公告)日：2001-06-18

申请号：AU1950501

申请日：2000-12-06

Applicant: ADC TELECOMMUNICATIONS INC

Inventor： KELLER JOHN C ,  OFTEDAHL RICK ,  MANDERFIELD SARA ,  BROWN JEFFREY O ,  CARLSON CRAIG

IPC: H04N7/10

公开(公告)号：WO0065831A9

公开(公告)日：2002-03-14

申请号：PCT/US0010796

申请日：2000-04-21

Applicant: ADC TELECOMMUNICATIONS INC

Inventor： OFTEDAHL RICK ,  BROWN JEFFREY O ,  CARLSON CRAIG ,  KELLER JOHN C ,  MANDERFIELD SARA

IPC: H04B10/00 ,  H04N7/10 ,  H04N7/22

CPC classification number: H04B10/032 ,  H04N7/104 ,  H04N7/22

Abstract: A switch apparatus is used in the transmission of a redundant Cable TV (CTV) signal. The redundant CTV signal can be a symmetric split linked redundant CTV signal or an asymmetric split linked redundant CTV signal. The switch apparatus is capable of handling both the symmetric and asymmetric redundant CTV signal where primary channels are split into multiple parts. The asymmetrical splitting of the primary channels is where one part contains more channels than another part. The switch apparatus includes a plurality of switches and a monitor device to detect a failure in the split signal path before the split signals are combined to be transmitted to downstream end-users. Upon detecting a failure, the switches are switched from primary channels to secondary channels by a controller. After the signal is returned, the switches are switched back to the primary channels. A delay timer may be included in the switch apparatus to avoid incidental or temporary signal recovery.

Abstract translation: 交换设备用于传输冗余有线电视（CTV）信号。 冗余CTV信号可以是对称分离链接冗余CTV信号或非对称分离链接冗余CTV信号。 交换设备能够处理对称和不对称的冗余CTV信号，其中主信道被分成多个部分。 主通道的不对称分裂是一个部分包含比另一部分更多的通道。 开关装置包括多个开关和监视装置，用于在分离信号组合之前检测分离信号路径中的故障，以发送给下游终端用户。 在检测到故障时，控制器将开关从主通道切换到次通道。 信号返回后，开关切换回主通道。 延迟定时器可以包括在开关装置中，以避免附带或暂时的信号恢复。

公开(公告)号：WO0143321A3

公开(公告)日：2002-03-07

申请号：PCT/US0033096

申请日：2000-12-06

Applicant: ADC TELECOMMUNICATIONS INC

Inventor： KELLER JOHN C ,  OFTEDAHL RICK ,  MANDERFIELD SARA ,  BROWN JEFFREY O ,  CARLSON CRAIG

IPC: H04N7/10 ,  H04B1/74 ,  H04B10/00 ,  H04L1/22

CPC classification number: H04N7/104 ,  H04N7/10

Abstract: A monitored redundant switch apparatus provides an improved isolation between selected and unselected signals while using as few detectors as possible. The switch apparatus is capable of simultaneously and continuously monitoring both selected and unselected signals. The switch apparatus can be controlled remotely. In one embodiment, the switch apparatus includes a plurality of switches switching between primary signals and backup signals, a first detector coupled to monitor a condition of the selected signals, and a second detector coupled to monitor a condition of the unselected signals.

Abstract translation: 受监视的冗余开关设备在使用尽可能少的检测器的同时提供了选择信号和未选择信号之间的改进的隔离。 开关装置能够同时且连续地监视所选择的和未选择的信号。 开关装置可以远程控制。 在一个实施例中，开关装置包括在主信号和备用信号之间切换的多个开关，耦合到监视所选信号的状态的第一检测器，以及连接以监视未选择信号的状态的第二检测器。