公开(公告)号：US5872934A

公开(公告)日：1999-02-16

申请号：US697484

申请日：1996-08-26

申请人： James Bruce Whitehouse ,  Bruce Robert Ferguson ,  Kaz Takata ,  Kunjan Zaveri

发明人： James Bruce Whitehouse ,  Bruce Robert Ferguson ,  Kaz Takata ,  Kunjan Zaveri

IPC分类号： H04L12/403 ,  G06F13/00

CPC分类号： H04L12/40032 ,  H04L12/24 ,  H04L12/403 ,  H04L41/00 ,  H04L2012/40267

摘要： A technique and system for isolating segments of a serial data bus for remote configuration of equipment in in-flight entertainment systems. The system allows the automatic initialization, or configuration, of multiple terminal units, attached to a serial data bus, without requiring physical access to the multiple units.

摘要翻译： 一种用于隔离串行数据总线段的技术和系统，用于在飞行中娱乐系统中远程配置设备。 该系统允许连接到串行数据总线的多个终端单元的自动初始化或配置，而不需要物理地访问多个单元。

公开(公告)号：US5848235A

公开(公告)日：1998-12-08

申请号：US689876

申请日：1996-08-15

申请人： Edward Scott ,  Kaz Takata ,  Toshiharu Fukui

发明人： Edward Scott ,  Kaz Takata ,  Toshiharu Fukui

IPC分类号： G01R31/28 ,  G01R31/3185 ,  G01R31/3193

CPC分类号： G01R31/318536 ,  G01R31/2815 ,  G01R31/3193

摘要： A boundary scan analog signal test circuit for boundary scan testing of analog signals. The boundary scan analog signal test circuit provides for known upper and lower bound values at specified times for testing whether sample analog signals are within the specified lower and upper bound values. If the sample analog signals are not between the known upper and lower bound values, the boundary scan analog signal test circuit produces a result flag indicating a "not pass" for the device being tested. If the sample analog signal being tested is found to be within the known upper and lower bound values, then the circuit generates a result flag indicating that the device being tested has passed the test.

摘要翻译： 用于模拟信号边界扫描测试的边界扫描模拟信号测试电路。 边界扫描模拟信号测试电路在指定时间提供已知的上限和下限值，用于测试样本模拟信号是否在指定的下限和上限值内。 如果采样模拟信号不在已知的上限值和下限值之间，则边界扫描模拟信号测试电路会产生一个指示被测设备“未通过”的结果标志。 如果被测试的样本模拟信号在已知的上限和下限值内，则电路产生一个结果标志，指示被测设备已通过测试。

公开(公告)号：US5826091A

公开(公告)日：1998-10-20

申请号：US697910

申请日：1996-08-30

申请人： Dilip C. Shah ,  Michael Atkinson ,  Kaz Takata

发明人： Dilip C. Shah ,  Michael Atkinson ,  Kaz Takata

IPC分类号： G06F13/24 ,  G06F13/00

CPC分类号： G06F13/24

摘要： The interrupt regenerator circuit converts the transition signal caused by a passenger's data entry in an aircraft entertainment system into a triggering signal. The triggering signal triggers a delay element consisting of cascadable one-shot devices. The timing intervals for the outputs of these one-shot devices are programmable through the selection of proper values for the resistors and capacitors. The interrupt signal is de-asserted by the host processor when the host processor responds to the interrupt. The delayed interrupt signal is then gated by the interrupt signal itself to regenerate the interrupt signal to the host processor.

摘要翻译： 中断再生器电路将飞机娱乐系统中的乘客数据输入引起的过渡信号转换为触发信号。 触发信号触发由可级联单触发器件组成的延迟元件。 这些单触发器件的输出的定时间隔可通过选择电阻和电容器的适当值进行编程。 当主机处理器响应中断时，主机处理器断言中断信号。 延迟中断信号然后由中断信号本身进行门控，以将中断信号再生到主机处理器。

公开(公告)号：US5973722A

公开(公告)日：1999-10-26

申请号：US716541

申请日：1996-09-16

申请人： Bruce Minoru Wakai ,  Robert Troxel ,  Marc Booth ,  Kaz Takata ,  Karen Evensen ,  Loi Ninh

发明人： Bruce Minoru Wakai ,  Robert Troxel ,  Marc Booth ,  Kaz Takata ,  Karen Evensen ,  Loi Ninh

IPC分类号： H04H20/62 ,  H04L12/64 ,  H04N7/16

CPC分类号： H04H20/62 ,  H04L12/40091 ,  H04L12/40097 ,  H04L12/40117

摘要： An in-flight passenger entertainment system has a first digital network for communication among components of a headend system including a data server, media controller, one or more media servers, system interface unit, system manager unit and attendant control panel. The in-flight entertainment system is coupled to an aircraft's existing systems through the system interface unit and the system manager unit. The components of the headend system are all coupled to a network switch for routing data within the first network. The network switch is also coupled to one or more zone bridge units, each of which is coupled to multiple seat electronics units. The zone bridge units and the seat electronics units together form a second digital network. The first digital network is preferably an ATM network with fibre optic cables used to carry the data. The second digital network is preferably an IEEE 1394 serial bus network. The zone bridge units control all communications between the networks, converting all communications into the format required by the respective network. A first audio path for transmitting audio content from the headend system is routed to predetermined seat entertainment units through the network switch and the zone bridge units. A second audio path for transmitting audio from the system interface unit is routed to the seat entertainment units through the zone bridge units.

摘要翻译： 飞行中乘客娱乐系统具有用于在包括数据服务器，媒体控制器，一个或多个媒体服务器，系统接口单元，系统管理器单元和话务员控制面板的前端系统的组件之间进行通信的第一数字网络。 飞行中娱乐系统通过系统接口单元和系统管理器单元耦合到飞机的现有系统。 前端系统的组件都耦合到网络交换机，用于在第一网络内路由数据。 网络交换机还耦合到一个或多个区域桥接单元，每个区域桥接单元耦合到多个座椅电子单元。 区域桥接单元和座椅电子单元一起形成第二数字网络。 第一数字网络优选地是具有用于承载数据的光纤电缆的ATM网络。 第二数字网络优选地是IEEE 1394串行总线网络。 区域网桥单元控制网络之间的所有通信，将所有通信转换为相应网络所需的格式。 用于从前端系统发送音频内容的第一音频路径通过网络交换机和区域桥接单元被路由到预定的座位娱乐单元。 用于从系统接口单元发送音频的第二音频路径通过区域桥接单元被路由到座位娱乐单元。