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    • 1. 发明授权
    • Method and apparatus enabling synchronous transfer mode and packet mode
access for multiple services on a broadband communication network
    • 能够在宽带通信网络上实现多个服务的同步传输模式和分组模式接入的方法和装置
    • US5570355A
    • 1996-10-29
    • US340927
    • 1994-11-17
    • James E. DailChia-Chang LiPeter D. MagillKotikalapudi SriramNorman A. Whitaker, Jr.
    • James E. DailChia-Chang LiPeter D. MagillKotikalapudi SriramNorman A. Whitaker, Jr.
    • H04J3/16H04J3/00H04J3/17H04L12/56H04L12/64H04Q11/04
    • H04Q11/0478H04L12/6418H04J2203/0069H04J2203/0089H04L2012/5632H04L2012/5672H04L2012/6421H04L2012/6427H04L2012/644H04L2012/6448H04L2012/6462H04L2012/6486
    • STM traffic, e.g. voice and video telephony (VT), as well as packet mode (e.g. ATM) traffic, e.g. broadcast digital video, interactive television, and data, are transmitted via a multiple access broadband fiber/coaxial cable network. Customer premises equipment (CPE) at stations, and a bandwidth controller, which may be at a head end or central office, with which all stations communicate, work together to adapt to the changing demands of the traffic mix, and efficiently allocate bandwidth to a variety of bursty and isochronous traffic sources. The bandwidth allocation defines two types of time slots, STM and ATM, and divides each frame into two corresponding STM and ATM regions. The boundary between the regions can be changed dynamically. A contention access signaling channel is provided in the STM region, for call control and set-up requests. Within the STM region, the time slots can be of variable length and be allocated on a per call basis; the length of the time slots is proportional to the bandwidth requirement of STM calls. Within the ATM region, the time slots are of fixed length, each capable of accommodating one ATM cell. Further, the fixed length ATM time slots may be reserved for a particular user for the duration of a call, or may be shared through a contention process. At least one contention ATM time slot is always made available for signaling messages related to ATM call control and set-up requests. The downstream time frame is structured in a similar manner, but includes an additional MAP field to transmit to the stations ATM time slot allocation and status information for time slots in the upstream channel.
    • STM业务,例如 语音和视频电话(VT),以及分组模式(例如ATM)业务,例如。 广播数字视频,交互式电视和数据通过多址宽带光纤/同轴电缆网络传输。 站点的客户端设备(CPE)以及可能位于所有站点通信的前端或中心局的带宽控制器,一起工作以适应流量混合的不断变化的需求,并且有效地将带宽分配给 各种突发和同步流量来源。 带宽分配定义了两种类型的时隙STM和ATM,并将每个帧划分为两个对应的STM和ATM区域。 区域之间的边界可以动态变化。 在STM区域中提供争用接入信令信道,用于呼叫控制和建立请求。 在STM区域内,时隙可以是可变长度,并且按每个呼叫分配; 时隙的长度与STM呼叫的带宽要求成比例。 在ATM区域内,时隙是固定长度的,每个时隙可容纳一个ATM信元。 此外,固定长度的ATM时隙可以在呼叫期间为特定用户保留,或者可以通过争用过程共享。 总是使至少一个争用ATM时隙可用于与ATM呼叫控制和建立请求有关的信令消息。 下游时间帧以类似的方式构成,但是包括附加的MAP字段,用于向站中的ATM时隙分配和上行信道中的时隙的状态信息进行发送。
    • 3. 发明授权
    • Method and apparatus enabling multiple access on a broadband communication network
    • 能够在宽带通信网络上进行多次接入的方法和装置
    • US06813277B2
    • 2004-11-02
    • US10036272
    • 2001-12-26
    • Eugene L. EdmonChia-Chang LiKotikalapudi Sriram
    • Eugene L. EdmonChia-Chang LiKotikalapudi Sriram
    • H04J300
    • H04L65/80H04J3/1694H04L12/2801H04L29/06H04L29/06027H04L2012/561H04L2012/5671H04L2012/5675H04N7/17318H04Q11/0478
    • A protocol for handling multiple access on broadband communication networks, e.g., fiber/coax networks and wireless networks, supports both continuous bit rate (CBR) and variable bit rate (VBR) traffic representing voice, video telephony, interactive television, and data. The invention is carried out both in customer premise equipment (CPE) at stations, and in a common controller with which all stations communicate. A medium access control (MAC) processor provided in each of the stations and in the common controller divides the time domain for a given RF channel into a series of successive frames, each having a plurality of time slots. Because of the architecture of the communication network, individual stations do not communicate directly with each other, but can receive broadcast messages indicating the status of each time slot, which messages are generated in the common controller and transmitted in a downstream channel. When a station desires to transmit information in the upstream direction, it inserts the information into an available time slot, with availability being determined in accordance with time slot status. Depending upon the type of traffic being originated, a station can indicate to the common controller a need for continued use of the “same” time slot in successive frames. This permits a station, such as a station requiring a CBR connection, to avoid having to contend repeatedly for continued access to the transmission network. In the case of a wireless communication network, the invention is carried out both in mobile stations, and in a base station which acts as a common controller and with which all mobile stations communicate.
    • 用于处理宽带通信网络(例如,光纤/同轴电缆网络和无线网络)上的多路访问的协议支持代表语音,视频电话,交互式电视和数据的连续比特率(CBR)和可变比特率(VBR)业务。 本发明在站点的客户驻地设备(CPE)以及所有站点通信的公共控制器中进行。 提供在每个站和公共控制器中的介质访问控制(MAC)处理器将给定RF信道的时域划分为一系列连续的帧,每个帧具有多个时隙。 由于通信网络的架构,各个站不直接相互通信,而是可以接收指示每个时隙的状态的广播消息,哪些消息在公共控制器中生成并在下行信道中发送。 当站希望在上行方向传输信息时,它将信息插入到可用时隙中,其可用性根据时隙状态确定。 根据发起的业务类型,站可以向公共控制器指示在连续帧中继续使用“相同”时隙的需要。 这允许诸如要求CBR连接的站之类的站点避免不得不反复争取持续访问传输网络。 在无线通信网络的情况下,本发明在移动台以及作为公共控制器的基站中进行,并且所有移动台都与其通信。
    • 4. 发明授权
    • Image depth information refreshing method and device
    • 图像深度信息刷新方法和设备
    • US08643643B2
    • 2014-02-04
    • US12981649
    • 2010-12-30
    • Chia-Chang LiDuan-Li LiaoWen-Hung TingPo-Lung Chen
    • Chia-Chang LiDuan-Li LiaoWen-Hung TingPo-Lung Chen
    • G06T15/00
    • G06T7/593G06T2207/10021G06T2207/20021H04N2013/0081
    • An image depth information refreshing method applied to an image depth information refreshing device is disclosed. The image depth information refreshing device includes a storage unit and an arithmetic logic unit. The storage unit stores a previous depth diagram corresponding to a previous image. The image depth information refreshing method includes the following steps. The arithmetic logic unit divides a current image captured by an image capturing unit into multiple image blocks. The arithmetic logic unit calculates a depth reference value of each image block according to the previous depth diagram, and determines a weight of each image block according to the depth reference values. The arithmetic logic unit determines a refreshing frequency of each image block according to the weights. The arithmetic logic unit respectively refreshes the image block according to the refreshing frequencies of the image blocks, and generates a current depth diagram corresponding to the current image.
    • 公开了一种应用于图像深度信息刷新装置的图像深度信息刷新方法。 图像深度信息刷新装置包括存储单元和算术逻辑单元。 存储单元存储对应于先前图像的先前深度图。 图像深度信息刷新方法包括以下步骤。 算术逻辑单元将由图像捕获单元捕获的当前图像划分为多个图像块。 算术逻辑单元根据先前的深度图计算每个图像块的深度参考值,并根据深度参考值确定每个图像块的权重。 算术逻辑单元根据权重确定每个图像块的刷新频率。 算术逻辑单元根据图像块的刷新频率分别刷新图像块,并生成与当前图像对应的当前深度图。
    • 10. 发明申请
    • Image Depth Information Refreshing Method and Device
    • 图像深度信息刷新方法和设备
    • US20120105433A1
    • 2012-05-03
    • US12981649
    • 2010-12-30
    • Chia-Chang LiDuan-Li LiaoWen-Hung TingPo-Lung Chen
    • Chia-Chang LiDuan-Li LiaoWen-Hung TingPo-Lung Chen
    • G06T15/00
    • G06T7/593G06T2207/10021G06T2207/20021H04N2013/0081
    • An image depth information refreshing method applied to an image depth information refreshing device is disclosed. The image depth information refreshing device includes a storage unit and an arithmetic logic unit. The storage unit stores a previous depth diagram corresponding to a previous image. The image depth information refreshing method includes the following steps. The arithmetic logic unit divides a current image captured by an image capturing unit into multiple image blocks. The arithmetic logic unit calculates a depth reference value of each image block according to the previous depth diagram, and determines a weight of each image block according to the depth reference values. The arithmetic logic unit determines a refreshing frequency of each image block according to the weights. The arithmetic logic unit respectively refreshes the image block according to the refreshing frequencies of the image blocks, and generates a current depth diagram corresponding to the current image.
    • 公开了一种应用于图像深度信息刷新装置的图像深度信息刷新方法。 图像深度信息刷新装置包括存储单元和算术逻辑单元。 存储单元存储对应于先前图像的先前深度图。 图像深度信息刷新方法包括以下步骤。 算术逻辑单元将由图像捕获单元捕获的当前图像划分为多个图像块。 算术逻辑单元根据先前的深度图计算每个图像块的深度参考值,并根据深度参考值确定每个图像块的权重。 算术逻辑单元根据权重确定每个图像块的刷新频率。 算术逻辑单元根据图像块的刷新频率分别刷新图像块,并生成与当前图像对应的当前深度图。