Patents by Inventor Kevork Kechichian
Kevork Kechichian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8284845Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: October 9, 2012Assignee: ATI Technologies ULCInventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 7788505Abstract: A graphics processor receives a compressed encrypted video stream. The graphics processor decrypts the compressed encrypted video stream and stores a decrypted version (i.e., a decrypted compressed video stream) in a protected portion of an on-chip or off-chip video memory. The graphics processor then permits processors and other bus masters on the graphics processor to access the on-chip video memory, but conditionally limits access to other bus masters that are located off-chip, such as a central processing unit located off-chip and coupled to the graphics processor via a bus.Type: GrantFiled: December 14, 2005Date of Patent: August 31, 2010Assignee: ATI Technologies ULCInventors: Allen J. C. Porter, Chun Wang, Kevork Kechichian, Gabriel Varga, David Strasser
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Publication number: 20080288663Abstract: In accordance with a specific aspect of the present disclosure, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized and written to an output buffer location.Type: ApplicationFiled: February 14, 2008Publication date: November 20, 2008Applicant: ATI TECHNOLOGIES, INC.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 7376692Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: April 6, 2004Date of Patent: May 20, 2008Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 7366961Abstract: In accordance with a specific aspect of the present disclosure, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized and written to an output buffer location.Type: GrantFiled: August 17, 2004Date of Patent: April 29, 2008Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 7113546Abstract: In a specific embodiment of the present invention, a system and method is disclosed having a plurality of modes for providing and/or receiving compressed video data at a frame buffer memory. The modes include providing compressed video data directly from a system host system or through a direct memory access controller; or indirectly from a system host through a demultiplexer portion using one or more registers to receive and handle a transport stream. Another mode of operation includes receiving a transport stream containing compressed video data from a head end system. The compressed video data is subsequently processed through a demultiplexer portion.Type: GrantFiled: May 2, 2000Date of Patent: September 26, 2006Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Publication number: 20060123248Abstract: A graphics processor receives a compressed encrypted video stream. The graphics processor decrypts the compressed encrypted video stream and stores a decrypted version (i.e., a decrypted compressed video stream) in a protected portion of an on-chip or off-chip video memory. The graphics processor then permits processors and other bus masters on the graphics processor to access the on-chip video memory, but conditionally limits access to other bus masters that are located off-chip, such as a central processing unit located off-chip and coupled to the graphics processor via a bus.Type: ApplicationFiled: December 14, 2005Publication date: June 8, 2006Inventors: Allen Porter, Chun Wang, Kevork Kechichian, Gabriel Varga, David Strasser
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Patent number: 7055038Abstract: A graphics processor receives a compressed encrypted video stream. The graphics processor decrypts the compressed encrypted video stream and stores a decrypted version (i.e., a decrypted compressed video stream) in a protected portion of an on-chip or off-chip video memory. The graphics processor then permits processors and other bus masters on the graphics processor to access the on-chip video memory, but conditionally limits access to other bus masters that are located off-chip, such as a central processing unit located off-chip and coupled to the graphics processor via a bus.Type: GrantFiled: May 7, 2001Date of Patent: May 30, 2006Assignee: ATI International SRLInventors: Allen J. C. Porter, Chun Wang, Kevork Kechichian, Gabriel Varga, David Strasser
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Patent number: 6999424Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: February 14, 2006Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6988238Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: January 17, 2006Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6885680Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: April 26, 2005Assignee: ATI International SRLInventors: Branko Kovacevic, Kevork Kechichian
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Publication number: 20050021813Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: ApplicationFiled: April 6, 2004Publication date: January 27, 2005Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6804266Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: October 12, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6785336Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: August 31, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6778533Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: August 17, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6763390Abstract: In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultiplexor. Adaptation field is handled by a separate parser. In addition, primary elementary stream data can be handled by separate primary elementary stream parsers based upon the packet identifier of the primary elementary stream. Video packets can be parsed based upon stream identifier values. Specific packets of data are stored in one or more system memory or video memory buffers by an output controller based upon allocation table information. Private data associated with specific elementary streams or packet adaptation fields are repacketized, and written to an output buffer location. In specific implementations, the hardware associated with the system is used to acquire the data stream without any knowledge of the specific protocol of the stream.Type: GrantFiled: January 24, 2000Date of Patent: July 13, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Patent number: 6674805Abstract: In accordance with a specific embodiment of the present invention one of a first, second, and third reference signal generator is selected. When a first reference signal generator is selected, a value associated with the pulse width modulated register is compared to a second register to control generation of the reference clock. When a second reference signal generator is selected, a phase accumulator is used to generate the reference clock. When a third reference signal generator is selected, a digital phase locked loop generates the reference clock. The present invention is better understood with reference to specific embodiments.Type: GrantFiled: May 2, 2000Date of Patent: January 6, 2004Assignee: ATI Technologies, Inc.Inventors: Branko Kovacevic, Kevork Kechichian
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Publication number: 20020163522Abstract: A graphics processor receives a compressed encrypted video stream. The graphics processor decrypts the compressed encrypted video stream and stores a decrypted version (i.e., a decrypted compressed video stream) in a protected portion of an on-chip or off-chip video memory. The graphics processor then permits processors and other bus masters on the graphics processor to access the on-chip video memory, but conditionally limits access to other bus masters that are located off-chip, such as a central processing unit located off-chip and coupled to the graphics processor via a bus.Type: ApplicationFiled: May 7, 2001Publication date: November 7, 2002Inventors: Allen J.C. Porter, Chun Wang, Kevork Kechichian, Gabriel Varga, David Strasser