公开(公告)号：US20020057367A1

公开(公告)日：2002-05-16

申请号：US09992269

申请日：2001-11-14

Applicant: PACE MICRO TECHNOLOGY PLC.

Inventor： Mark R. Baldock

IPC: H04N003/27 ,  H04N005/50

CPC classification number: H04N21/4263 ,  H04N5/4401 ,  H04N5/50 ,  H04N21/4345

Abstract: The invention relates to the provision of a broadcast data receiver for use in receiving digital data providing any or any combination of video, audio or auxiliary data. The broadcast data receiver receives the data via satellite, cable and/or terrestrial transmission systems via a number of RF carriers. The broadcast data receiver includes at least two tuners which can be controlled to receive data on specific data carriers at specified frequencies in response to user selections when operating a broadcast data receiver. In some instances, at least one of the tuners may not be required to receive data at a specific frequency and, in these instances, in accordance with the invention, the tuner is utilized to scan the available frequency bandwidth for service information and to store said service information for subsequent use. The invention therefore allows the utilization of a tuner when not in primary use for a useful service.

Abstract translation: 本发明涉及提供用于接收提供视频，音频或辅助数据的任何或任何组合的数字数据的广播数据接收器。 广播数据接收器经由卫星，有线和/或地面传输系统经由多个RF载波接收数据。 广播数据接收机包括至少两个调谐器，其可以被控制以在操作广播数据接收机时响应于用户选择以特定频率接收特定数据载体上的数据。 在一些情况下，调谐器中的至少一个可能不需要以特定频率接收数据，并且在这些情况下，根据本发明，调谐器用于扫描可用的频率带宽以用于服务信息并存储所述 服务信息供后续使用。 因此，本发明允许当不在主要用途中使用调谐器用于有用的服务时。

公开(公告)号：US20020067438A1

公开(公告)日：2002-06-06

申请号：US09997170

申请日：2001-11-30

Applicant: PACE MICRO TECHNOLOGY PLC.

Inventor： Mark R. Baldock

IPC: H04N007/16 ,  H04B001/18 ,  H04N005/50

CPC classification number: H04N21/4532 ,  H04N5/4401 ,  H04N5/50 ,  H04N21/4263 ,  H04N21/4384 ,  H04N21/44222

Abstract: The invention which is the subject of the application relates to a television system apparatus and method wherein the broadcast data receiver includes at least two tuners. Each tuner is controllable to tune to a frequency of a known RF carrier for data relating to one or a plurality of selectable television channels. In order to avoid or reduce the delay which can appear on screen when the user selects to change channels a method and apparatus is provided whereby, based upon previous user channel selection patterns, the apparatus predicts the channel which is next to be selected and if one of the tuners is free, that tuner is controlled to tune to the RF carrier frequency for the predicted channel such that the data for that channel is available, should the channel subsequently be selected by the user.

Abstract translation: 作为本申请的主题的本发明涉及一种电视系统装置和方法，其中广播数据接收机包括至少两个调谐器。 每个调谐器可控制以调谐到与一个或多个可选电视频道相关的数据的已知RF载波的频率。 为了避免或减少当用户选择改变频道时可能出现在屏幕上的延迟，提供了一种方法和装置，由此，基于先前的用户信道选择模式，该装置预测下一个被选择的频道，如果一个 如果频道随后被用户选择，调谐器被控制以调谐到预测频道的RF载波频率，使得该频道的数据可用。