Patents by Inventor Van T. Hua
Van T. Hua 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: 7715207Abstract: One embodiment of the invention provides a fully distributed, scaleable and modular rack architecture and management system. One feature of the invention provides device management throughout the rack system with a vertical interface column integrated into the rack cabinet. Within each rack unit (U) of the vertical interface column, the vertical interface column may deliver connectivity to a device housed within the rack cabinet thereby eliminating runs of cable typically necessary for management of such devices. The vertical interface column can be expanded as necessary to provide connectivity to more devices using hot-swappable interface modules. A rack management system allows both local and remote management access to all devices mounted in the rack cabinet and coupled to the vertical interface column. The rack management system may also access to devices mounted in other rack cabinets.Type: GrantFiled: August 23, 2007Date of Patent: May 11, 2010Assignee: Epicenter, Inc.Inventors: Edward Behrens, Tho Tu, Van T. Hua, David Wang
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Patent number: 7551456Abstract: One embodiment of the invention provides a fully distributed, scaleable and modular rack architecture and management system. One feature of the invention provides device management throughout the rack system with a vertical interface column integrated into the rack cabinet. Within each rack unit (U) of the vertical interface column, the vertical interface column may deliver connectivity to a device housed within the rack cabinet thereby eliminating runs of cable typically necessary for management of such devices. The vertical interface column can be expanded as necessary to provide connectivity to more devices using hot-swappable interface modules. A rack management system allows both local and remote management access to all devices mounted in the rack cabinet and coupled to the vertical interface column. The rack management system may also access to devices mounted in other rack cabinets.Type: GrantFiled: November 28, 2006Date of Patent: June 23, 2009Assignee: Epicenter, Inc.Inventors: Edward Behrens, Tho Tu, Van T. Hua, David Wang
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Patent number: 7289334Abstract: One embodiment of the invention provides a fully distributed, scaleable and modular rack architecture and management system. One feature of the invention provides device management throughout the rack system with a vertical interface column integrated into the rack cabinet. Within each rack unit (U) of the vertical interface column, the vertical interface column may deliver connectivity to a device housed within the rack cabinet thereby eliminating runs of cable typically necessary for management of such devices. The vertical interface column can be expanded as necessary to provide connectivity to more devices using hot-swappable interface modules. A rack management system allows both local and remote management access to all devices mounted in the rack cabinet and coupled to the vertical interface column. The rack management system may also access to devices mounted in other rack cabinets.Type: GrantFiled: February 20, 2004Date of Patent: October 30, 2007Assignee: Epicenter, Inc.Inventors: Edward Behrens, Tho Tu, Van T. Hua, David Wang
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Patent number: 6477706Abstract: The present invention provides a telecommunication. The present provides a method for editing a first digital signal such as a constant bit rate digital signal in a cable head end. The present method uses a step of providing a first constant bit rate information stream (e.g., multiple constant bit rate streams), where the first constant bit rate stream includes a plurality of variable bit rate streams. Each of the variable bit rate streams correspond to a program, e.g., television program. The method removes one or more of the variable bit rate streams from the first constant bit rate stream, and converts the first constant bit rate stream without the one or more variable bit rate streams into a second constant bit rate stream. A step of transferring the second constant bit rate stream to a user location is included. The present invention uses a transcoding technique to edit the first constant bit rate stream without interfering with video picture quality at the user location.Type: GrantFiled: April 28, 1999Date of Patent: November 5, 2002Assignee: Cogent Technology, Inc.Inventors: Van T. Hua, Pedro A. Assuncao
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Publication number: 20010039661Abstract: The present invention provides computer software or “codes” for editing a first digital signal such as a constant bit rate digital signal in a cable headend. The invention has memory for storing these codes. These codes include a first code directed to receiving a first constant bit rate information stream, where the first constant bit rate stream is made of at least a plurality of variable bit rate streams. Each of the variable bit rate streams corresponds to a program, e.g., television program. The invention also includes a code that removes one or more of the variable bit rate streams from the first constant bit rate stream, and a code that transfers the first constant bit rate stream, without the one or more variable bit rate streams, as a second constant bit rate stream, which may include an additional television channel, to a user location. These codes can be stored in computer memory including memory of integrated circuit devices.Type: ApplicationFiled: April 28, 1999Publication date: November 8, 2001Inventors: VAN T. HUA, PEDRO A. ASSUNCAO
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Patent number: 5321828Abstract: An in-circuit emulator (ICE) for hardware/software development and debugging microprocessors. Program execution reconstruction is extracted from an on-board cache memory. An external ICE enclosure interfaces to a target system microprocessor via a cable and a buffer/interface pod. A control program directs a non-intrusive emulation and a monitor program resides in a personal computer host and supports ICE commands. The monitor program allows a user to follow a target system's program flow, to capture related processor information, to make program modifications, and allows the user to restart programs. An on-line disassembler presents a display so as to allow the designer to examine memory, using instruction mnemonics rather than hexadecimal values, thus improving the designer's ability to read program memory. A bit trace buffer records the state of each the microprocessor's signals during each cycle of each instruction.Type: GrantFiled: June 7, 1991Date of Patent: June 14, 1994Assignee: Step EngineeringInventors: Michael D. Phillips, Darrell L. Wilburn, Van T. Hua, Gordon A. Minami, Robert J. Kresge, Charles Verhaegh
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Patent number: 4910609Abstract: A teleradiology system capable of scanning X-ray images and the like and transmitting the scanned images to various locations is disclosed. The images may be compressed for storage or transmission. Compressed images can be transmitted much more quickly and take up much less space than uncompressed images. Compressed images can be expanded for, among other things, viewing. The compressor/expander and input/output devices reside on a bus structure in such a manner that digital image data can be selectively passed between the compressor/expander and the various input/output devices.Type: GrantFiled: February 8, 1988Date of Patent: March 20, 1990Assignee: Raytel Systems CorporationInventors: John L. Nicholas, David Wang, Edward Kirkpatrick, Clark M. Viehweg, Edwin S. Morton, Van T. Hua, William C. King
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Patent number: 4860112Abstract: A teleradiology system capable of scanning X-ray images and the like and transmitting the scanned images to various locations is disclosed. The images may be compressed for storage or transmission. Compressed images can be transmitted much more quickly and take up much less space than uncompressed images. Compressed images can be expanded for, among other things, viewing. The compressor/expander and input/output devices reside on a bus structure in such a manner that digital image data can be selectively passed between the compressor/expander and the various input/output devices.Type: GrantFiled: November 25, 1987Date of Patent: August 22, 1989Assignee: Raytel Systems CorporationInventors: John L. Nichols, David Wang, Edward Kirkpatrick, Clark M. Viehweg, Edwin S. Morton, Van T. Hua
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Patent number: 4748511Abstract: A teleradiology system capable of scanning X-ray images and the like and transmitting the scanned images to various locations is disclosed. The images may be compressed for storage or transmission. Compressed images can be transmitted much more quickly and take up much less space than uncompressed images. Compressed images can be expanded for, among other things, viewing. The compressor/expander and input/output devices reside on a bus structure in such a manner that digital image data can be selectively passed between the compressor/expander and the various input/output devices.Type: GrantFiled: June 7, 1984Date of Patent: May 31, 1988Assignee: Raytel Systems CorporationInventors: John L. Nichols, David Wang, Edward Kirkpatrick, Clark M. Viehweg, Edwin S. Morton, Van T. Hua, William G. King