D
Dennis P. Cheney
Researcher at IBM
Publications - 11
Citations - 354
Dennis P. Cheney is an academic researcher from IBM. The author has contributed to research in topics: Video decoder & Digital signal. The author has an hindex of 10, co-authored 11 publications receiving 354 citations.
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Patent
Memory management for an MPEG2 compliant decoder
TL;DR: Disclosed as discussed by the authors is a digital signal decoder system for receiving compressed encoded digitized video signals and transmitting decompressed decoded digital video signals with a minimum of DRAM demand through the use of a Spill Buffer.
Patent
Integrated video processing system having multiple video sources and implementing picture-in-picture with on-screen display graphics
Dennis P. Cheney,Lawrence D. Curley,William Robert Lee,Leland Duane Richardson,Ronald Steven Svec +4 more
TL;DR: An integrated digital video system is configured to implement picture-in-picture merging of video signals from two or more video sources, as well as selective overlaying of on-screen display graphics onto the resultant merged signal as mentioned in this paper.
Patent
Multi-format reduced memory MPEG decoder with hybrid memory address generation
TL;DR: In this paper, an address generation engine for a digital video decoder unit coupled to memory in a DVC system is presented. But the address generation hardware is configured for generating from the vertical component and the horizontal component either a macroblock write address for writing a reconstructed macroblock of data to memory, a motion compensation read address for accessing pertinent motion vector information of the encoded data for reconstructing the macroblock, and a pan and scan offset address usable by a display unit for displaying reconstructed video data in pan-and scan format.
Patent
MPEG video decoder with integrated scaling and display functions
TL;DR: In this article, a digital video decoder system, method and article of manufacture are provided having integrated scaling capabilities for presentation of video in full size or a predetermined reduced size, while at the same time allowing for reduced external memory requirements for frame buffer storage.
Patent
MPEG-2 decoder, method and buffer scheme for providing enhanced trick mode playback of a video stream
TL;DR: Trick mode playback is implemented by disengaging a frame synchronization signal, and then decoding “I” and “P” frames to two (or more) buffers as discussed by the authors.