A wireless portable video-on-demand system

Our present ability to work with video has been confined to a wired environment, requiring both the video encoder and decoder to be physically connected to a power supply and a wired communication link. This paper presents a portable video-on-demand system capable of delivering high-quality image and video data in a wireless environment. The discussion will focus on both the architectural and circuit design techniques developed for implementing a high-performance, error-resistant video compression/decompression system at power levels that are two orders of magnitude below existing solutions. This low-power video compression system not only provides a compression efficiency better than industry standards, but also embeds a high degree of error tolerance in the compression algorithm itself to guard against transmission errors often encountered in wireless communication.

[1]  T.H. Meng,et al.  A low-power video-rate pyramid VQ decoder , 1996, 1996 IEEE International Solid-State Circuits Conference. Digest of TEchnical Papers, ISSCC.

[2]  W. Gehrke,et al.  VLSI chip set for 2D HDTV subband filtering with on-chip line memories , 1993 .

[3]  Teresa H. Y. Meng,et al.  Error-resilient pyramid vector quantization for image compression , 1998, IEEE Trans. Image Process..

[4]  Teresa H. Meng,et al.  A 1.2 mW video-rate 2-D color subband decoder , 1995 .

[5]  John W. Woods,et al.  Subband Image Coding , 1990 .

[6]  Teresa H. Meng,et al.  Portable video-on-demand in wireless communication , 1995, Proc. IEEE.

[7]  Teresa H. Y. Meng,et al.  Error resilient pyramid vector quantization for image compression , 1994, Proceedings of 1st International Conference on Image Processing.

[8]  Teresa H. Y. Meng,et al.  Image coding using pyramid vector quantization of subband coefficients , 1994, Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing.

[9]  S.C. Purcell The C-cube CL550-JPEG image compression processor , 1991, COMPCON Spring '91 Digest of Papers.