The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1998
Filed:
Sep. 28, 1995
Rama R Prasad, Hillsboro, OR (US);
Michael J Gutmann, Hillsboro, OR (US);
Stephen S Ing, Beaverton, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method for creating a video connection between a video source for transmitting frames of video data and a video sink for receiving the frames. The video source may be a file, a camera, a computer network, and a telephony interface. The video sink may be a file, a visual display device, a computer network, and a telephony interface. The video source has a recycle framehandler function for recycling used buffers and the video sink has a process framehandler function for processing received frames. A video stream object is created having data members that include a reference to the video sink and a reference to the video source, as well as several member functions. The member functions are used to query the video sink to obtain a reference to the process framehandler function and to then provide the reference to the video source. The member functions are also used to query the video source to obtain a reference to the recycle framehandler function, which is then provided to the video sink. The reference to the process framehandler function is stored as a data member of a first framehandler object to be used by the video source, and the reference to the recycle framehandler function is stored as a data member of a second framehandler object to be used by the video sink. The video source may then directly invoke the process framehandler function and the video sink may directly invoke the recycle framehandler function.