公开(公告)号：US09894126B1

公开(公告)日：2018-02-13

申请号：US14724562

申请日：2015-05-28

Applicant: INFOCUS CORPORATION

Inventor： Frederick P Block ,  Eric Wogsberg

IPC: H04L12/58 ,  H04L29/06 ,  H04N19/136 ,  H04N19/172

CPC classification number: H04L65/604 ,  H04L65/4069 ,  H04L65/607 ,  H04N5/268 ,  H04N19/136 ,  H04N19/172 ,  H04N21/4384 ,  H04N21/6405

Abstract: The technology disclosed relates to enabling smooth transitioning between compressed video streams. In particular, it relates to scheduling transitions between compressed video streams to be shown in an area of a display such that while decoding, decompressing and buffering a first video stream for display, commencing decoding, decompressing and buffering of a second video stream at a predetermined time before a scheduled showing of the second video stream. It further relates to switching buffers between display of the first and second video streams at the scheduled showing of the second video stream, which results in immediate display of the second video stream without delay. In one implementation, switching between the buffers for the first and second video streams includes modifying z-ordering of display layers corresponding to the first and second video streams.

公开(公告)号：US20170237795A1

公开(公告)日：2017-08-17

申请号：US15387484

申请日：2016-12-21

Applicant: INFOCUS CORPORATION

Inventor： Eric Wogsberg ,  Jack Klingelhofer ,  Herbert A. Kutscha

IPC: H04L29/06 ,  H04N21/6332 ,  H04N21/2343 ,  H04N21/2365

CPC classification number: H04L65/607 ,  H04L65/60 ,  H04N7/181 ,  H04N21/2343 ,  H04N21/2365 ,  H04N21/4122 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/4347 ,  H04N21/43615 ,  H04N21/4858 ,  H04N21/6332 ,  H04N21/6377 ,  H04N21/654 ,  H04N21/658

Abstract: An audiovisual signal is converted from a native format to a digital, packetized interchange format and transported between a capture node and a display node through a switch. The display node converts the audiovisual signal from the interchange format to a displayable format and causes display of the audiovisual signal. The use of a switch for video routing and distribution allows one-to-one, one-to-many, many-to-one, and many-to-many distribution. The use of a device-independent interchange format allows concurrent distribution of multiple heterogeneous audiovisual signals.

公开(公告)号：US09549011B2

公开(公告)日：2017-01-17

申请号：US14102232

申请日：2013-12-10

Applicant: INFOCUS CORPORATION

Inventor： Eric Wogsberg ,  Jack Klingelhofer ,  Herbert A. Kutscha

IPC: G06F15/16 ,  H04L29/06 ,  H04N7/18 ,  H04N21/2343 ,  H04N21/2365 ,  H04N21/41 ,  H04N21/431 ,  H04N21/434 ,  H04N21/436 ,  H04N21/485 ,  H04N21/6332 ,  H04N21/6377 ,  H04N21/654 ,  H04N21/658

CPC classification number: H04L65/607 ,  H04L65/60 ,  H04N7/181 ,  H04N21/2343 ,  H04N21/2365 ,  H04N21/4122 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/4347 ,  H04N21/43615 ,  H04N21/4858 ,  H04N21/6332 ,  H04N21/6377 ,  H04N21/654 ,  H04N21/658

Abstract: An audiovisual signal is converted from a native format to a digital, packetized interchange format and transported between a capture node and a display node through a switch. The display node converts the audiovisual signal from the interchange format to a displayable format and causes display of the audiovisual signal. The use of a switch for video routing and distribution allows one-to-one, one-to-many, many-to-one, and many-to-many distribution. The use of a device-independent interchange format allows concurrent distribution of multiple heterogeneous audiovisual signals.

Abstract translation: 视听信号从原始格式转换为数字分组交换格式，并通过交换机在捕获节点和显示节点之间传输。 显示节点将视听信号从交换格式转换为可显示格式，并且显示视听信号。 使用交换机进行视频路由和分发允许一对一，一对多，一对一和多对多分发。 使用与设备无关的交换格式允许并发分发多个异构视听信号。