公开(公告)号：US11513678B2

公开(公告)日：2022-11-29

申请号：US15615642

申请日：2017-06-06

Applicant: Polycom, Inc.

Inventor： Alain Nimri ,  Shu Gao ,  Stephen Schaefer ,  Robert Murphy ,  Daniel Palmer

IPC: G06F3/04883 ,  G06F3/0484 ,  G06F3/041 ,  G06V30/32 ,  G06V30/142

Abstract: A presentation system capable of detecting one or more gestures and contacts on a touch sensitive display. The presentation system can displaying indicia of such contacts, such as when a user writes with a fingertip, and can remove or alter such indicia responsive to other gestures and contacts. The system can accurately distinguish between types of gestures detected, such as between a writing gesture and an erasing gesture, on both large and small touch sensitive displays, thereby obviating the need for a user to make additional selective inputs to transition from one type of gesture to another. The system can determine how long to keep user annotations displayed during a presentation, based on the nature of the gesture used to make the annotations and the context in which they are made.

公开(公告)号：US20180349015A1

公开(公告)日：2018-12-06

申请号：US15615642

申请日：2017-06-06

Applicant: Polycom, Inc.

Inventor： Alain Nimri ,  Shu Gao ,  Stephen Schaefer ,  Robert Murphy ,  Daniel Palmer

IPC: G06F3/0488 ,  G06F3/0484 ,  G06F3/041

Abstract: A presentation system capable of detecting one or more gestures and contacts on a touch sensitive display. The presentation system can displaying indicia of such contacts, such as when a user writes with a fingertip, and can remove or alter such indicia responsive to other gestures and contacts. The system can accurately distinguish between types of gestures detected, such as between a writing gesture and an erasing gesture, on both large and small touch sensitive displays, thereby obviating the need for a user to make additional selective inputs to transition from one type of gesture to another. The system can determine how long to keep user annotations displayed during a presentation, based on the nature of the gesture used to make the annotations and the context in which they are made.