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This paper presents a look-up table based, configurable and serial-parallel scheduled π-rotation LDPC decoder. By using the proposed permutation mapping scheme together with an optimized normalized min-sum decoding algorithm, the LDPC decoder structure and circuit resource requirements can be greatly reduced. Furthermore, the proposed approach is compatible with different code lengths, bit widths...
A 4 K 2 K H.265/HEVC video codec chip supporting 14 video standard formats is implemented on a 1.491.45 mm die in a 28 nm CMOS process. Several HEVC fast algorithms reduce the coding modes by analyzing the content features leading to over 68.5% and 83% of complexity reduction in intra and inter coding, respectively. A fully parallel processing element (PE) array is adopted...
DRAM industry faces a grand challenge on continuing the scaling of storage node aspect ratio (A/R) to maintain the storage node storage capacitance. One viable option is to intentionally slow down the A/R scaling at the penalty of irreparable weak cells that cannot guarantee target data retention time under worst-case scenarios, and compensate the weak-cell- induced memory errors at the system level...
A 4K×2K H.265/HEVC video codec chip is fabricated in a 28nm CMOS process with a core area of 2.16mm2. This LSI chip integrates a dual-standard (H.265 and H.264) video codec and a series of prevalent (VC-1, WMV-7/8/9, VP-6/8, AVS, RM-8/9/10, MPEG-2/4) decoders into a single chip. It contains 3,558K logic gates and 308KB of internal SRAM. Moreover, it simplifies intra/inter-rate-distortion optimization...
A System-on-Chip Design of VLD (Variable Length Decoder) in multi-standard video decoder is proposed in this paper. Our design supports all the popular video compression standards, e.g. MPEG-1, MPEG-2, MPEG-4, H.264, AVS, RealVideo. Benefit from its low power, the design is especially suitable for wearable multimedia applications. Simulation results show that the whole design takes an area of 1.04mm2,...
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