Method and apparatus for reducing the amount of data required to
represent a video frame
    5.
    发明授权
    Method and apparatus for reducing the amount of data required to represent a video frame 失效
    用于减少表示视频帧所需的数据量的方法和装置

    公开(公告)号:US5592299A

    公开(公告)日:1997-01-07

    申请号:US311811

    申请日:1994-09-26

    摘要: Methods and apparatus for processing digital video data to reduce the amount of video data required to represent a video frame by representing a frame or pair of field pictures into a single field of a pair of field picture are described. To prevent the second field of the field picture from being displayed a DSM byte associated with the field picture is set so that only the field representing the video frame is displayed. In accordance with the present invention, a field, e.g., a transparent predictively coded field is used as the field picture which is not displayed. In this manner, very little data is required to represent the field picture that is not displayed. When the received frames are represented as pairs of field pictures a single field of the pair of field pictures is selected to represent the video frame with the other field picture being replaced with a field which requires very little data. When frame pictures are received one of a plurality of numerous described methods of mapping frame pictures into a single field of a pair of field pictures are used to convert the frame picture into a single field of a pair of field pictures. A plurality of methods for reducing the amount of data required to represent the single field of the pair of field pictures are also described.

    摘要翻译: 描述了通过将一帧或一对场图像表示成一对场图像的单个场来处理数字视频数据以减少表示视频帧所需的视频数据量的方法和装置。 为了防止场图像的第二场被显示,设置与场图像相关联的DSM字节,使得仅显示表示视频帧的场。 根据本发明,使用例如透明预测编码字段的字段作为不显示的场图像。 以这种方式,需要非常少的数据来表示不显示的场图像。 当接收到的帧被表示为场图像对时,选择一对场图像对中的单个场来表示视频帧,而另一个场图像被替换为需要非常少的数据的场。 当帧图像被接收时,将帧图像映射到一对场图像的单个场中的多种众所周知的方法之一用于将帧图像转换成一对场图像的单个场。 还描述了用于减少表示一对场图像的单个场所需的数据量的多种方法。

    Methods and apparatus for performing handoffs in a multi-carrier wireless communications systems
    6.
    发明授权
    Methods and apparatus for performing handoffs in a multi-carrier wireless communications systems 有权
    在多载波无线通信系统中进行切换的方法和装置

    公开(公告)号:US09485695B2

    公开(公告)日:2016-11-01

    申请号:US11681522

    申请日:2007-03-02

    IPC分类号: H04W36/00 H04W36/06 H04W36/18

    CPC分类号: H04W36/06 H04W36/18

    摘要: A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector. The new BS sector processes the request assigning dedicated resources. Information identifying the allocated resources is conveyed from the new BS sector via the current BS sector to the mobile. The mobile determines the time of the allocated dedicated segments based upon a received beacon signal from the new BS sector with known timing relationships to dedicated segments. The mobile breaks the original wireless link just prior to the time of the first assigned dedicated segment. The mobile communicates information on the assigned dedicated segments to perform registration operations establishing a new wireless link.

    摘要翻译: 移动通信设备发起从其当前基站(BS)扇区网络连接点到新的BS扇区的切换。 移动台通过其当前的无线链路向当前的BS扇区发送切换请求,该BS扇区将请求转发到新的BS扇区。 新的BS部门处理请求分配专用资源。 识别分配的资源的信息从新的BS扇区通过当前BS扇区传送到移动台。 移动台基于来自新BS扇区的接收到的信标信号确定所分配的专用段的时间,具有与专用段的已知定时关系。 移动台在第一个分配的专用段之前就打破原始的无线链路。 移动台在分配的专用段上传送信息以执行建立新的无线链路的注册操作。