VIDEO PLAYBACK BUFFER ADJUSTMENT
    5.
    发明申请

    公开(公告)号:US20210398563A1

    公开(公告)日:2021-12-23

    申请号:US17349733

    申请日:2021-06-16

    申请人: Apple Inc.

    IPC分类号: G11B27/00

    摘要: A video playback buffer adjustment system is disclosed. The video playback buffer has a target size, measured in units of time of content, and includes a compressed frames queue and an uncompressed frames queue. The uncompressed frames queue has a minimum threshold queue size. If the size of the uncompressed frames queue falls below the minimum threshold size, then a next encoded frame in the compressed frames queue is removed from the compressed frames queue, decoded, and enqueued in the uncompressed frames queue. If a current size of the playback queue exceeds the target size plus Δ (a hysteresis value), then a playback frame rate is increased, and a presentation time of one or more frames in the uncompressed frames queue is adjusted according to the increased playback frame rate. If the playback queue size is less than the target size minus Δ, the playback speed can be reduced.

    High-Quality Audio/Visual Conferencing
    9.
    发明申请

    公开(公告)号:US20180352156A1

    公开(公告)日:2018-12-06

    申请号:US15991866

    申请日:2018-05-29

    申请人: Apple Inc.

    IPC分类号: H04N5/232 H04L29/06

    摘要: Techniques disclosed herein permit a party to identify a first (low-resolution) image as it is displayed on their, for example, smart phone during a video conference call. Identifying information specific to the first image may be collected and a request for a high-resolution copy of the image sent to the party sourcing the transmitted image. The high-resolution image may be sent from the image's sourcing device to the requestor's device during, or after, the video conference call. In some embodiments, the high-resolution image may be sent through an alternate communication channel (e.g., via a chat, social media or email channel). In other embodiments, the high-resolution image may be sent to a network-based service from which the requestor may obtain the image. In one embodiment, the sourcing device may message the requesting device that the image has been sent to the network-based service.