公开(公告)号：US20180114545A1

公开(公告)日：2018-04-26

申请号：US15849588

申请日：2017-12-20

Applicant: EchoStar Technologies L.L.C.

Inventor： Kevin Thornberry

IPC: G11B27/034 ,  G11B27/10 ,  G11B27/34 ,  H04N21/6587 ,  H04N21/44

CPC classification number: G11B27/034 ,  G11B27/105 ,  G11B27/34 ,  H04N21/44004 ,  H04N21/6587

Abstract: An entertainment device includes an input circuit to receive audio/video data compliant with a high definition (H/D) video standard. The entertainment device also includes a video decoder, a graphics processing unit (GPU), and a graphics generator arranged as an onscreen display (OSD). The video decoder decodes the HD data into a stream of presentable frames. First and second registers associated with the GPU act as first and second forward pointers, respectively. Third and fourth registers associated with the OSD act as first and second reverse pointers, respectively. Video data output to a display by the OSD overlays video data output to the display by the GPU. The entertainment device includes first and second memory buffers to store and provide first and second data using the first forward and first reverse pointers and using the second forward and second reverse pointers, respectively. A smooth-play reverse playback controller cooperates with a processing unit to smoothly play high definition video in reverse without skipping any presentable frames of the HD video when it is played in reverse.