The thermometer code-to-binary code encoder has become the bottleneck of the ultra-high speed flash ADCs. In this paper, the authors presented the fat tree thermometer codeto-binary code encoder that is highly suitable for the ultrahigh speed flash ADCs. The simulation and the implementation results show that the fat tree encoder outperforms the commonly used ROM encoder in terms of speed and p...

In this brief, we introduce a priority encoder that uses a novel priority lookahead (PL) scheme to reduce delays associated with priority propagation. Two priority encoder approaches are presented, one without and the other with a PL scheme. For an -bit encoder, the circuit with the PL scheme requires about 0.1 more transistors than the circuit without the scheme. However, a 32-bit very large s...

A generic CPM scheme can be decomposed into a continuous-phase encoder (CPE) and a memoryless modulator (MM). The CPE can be combined with a channel encoder (CE). This creates an extended CE, as the CPE is now an extension of the CE. In this paper, a 1⁄2 rate quaternary CE is combined with a quaternary CPE. The CE used here is a convolutional encoder, thus, the extended CE is also a convolution...

This paper presents the design of a hardware architecture for the Entropy Encoder of H.264/AVC video compression standard, considering the baseline profile. The entropy encoder is composed by two main blocks: Exp-Golomb encoder and CAVLC encoder. This paper presents the architectural design of these two blocks. The synthesis results targeting Xilinx FPGAs showed that the Exp-Golomb and CAVLC en...

Quantum convolutional codes, like their classical counterparts, promise to offer higher error correction performance than block codes of equivalent encoding complexity, and are expected to find important applications in reliable quantum communication where a continuous stream of qubits is transmitted. Grassl and Roetteler devised an algorithm to encode a quantum convolutional code with a “pearl...

An encoder-decoder architecture with recurrent neural networks in both the encoder and decoder is a standard approach to the question-answering problem (finding answers to a given question in a piece of text). The Dynamic Coattention[1] encoder is a highly effective encoder for the problem; we evaluated the effectiveness of different decoder when paired with the Dynamic Coattention encoder. We ...

A common method for stopping error propagation in encoded video is to transmit intracoded blocks whenever errors occur, but this results in significantly increased bitrate. Error propagation can also be stopped by synchronizing the state of the encoder to that of the decoder. For example, one may emulate and repeat the entire decoding – including the channel errors – inside the encoder. This ap...