Invention Grant
US08226240B2 Method and apparatus for wireless image transmission to a projector
有权
用于无线图像传输到投影仪的方法和装置
- Patent Title: Method and apparatus for wireless image transmission to a projector
- Patent Title (中): 用于无线图像传输到投影仪的方法和装置
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Application No.: US13083196Application Date: 2011-04-08
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Publication No.: US08226240B2Publication Date: 2012-07-24
- Inventor: David Elliott Slobodin , Rob Hoeye , Jorell A. Olson , Paul Long , Marques Ronald Girardelli , Joshua Duffy
- Applicant: David Elliott Slobodin , Rob Hoeye , Jorell A. Olson , Paul Long , Marques Ronald Girardelli , Joshua Duffy
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G03B21/26
- IPC: G03B21/26 ; G03B23/00 ; G09G5/00 ; G06F15/173 ; G06F15/177 ; H04H40/00 ; H04B1/18

Abstract:
A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.
Public/Granted literature
- US20110181612A1 METHOD AND APPARATUS FOR WIRELESS IMAGE TRANSMISSION TO A PROJECTOR Public/Granted day:2011-07-28
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