circuit

Verification of timed circuits with failure-directed abstractions

This paper presents a method to address state explosion in timed-circuit verification by using abstraction directed by the failure model. This method allows us to decompose the verification problem into a set of subproblems, each of which proves that …

High level synthesis of timed asynchronous circuits

This paper proposes applying a logic synthesis approach to high level synthesis from SpecC specifications to timed asynchronous gate-level circuits. The state-based logic synthesis is used to allow for global and timing optimization. In order to …

Synthesis of speed independent circuits based on decomposition

This work presents a decomposition method for speed-independent circuit design that is capable of significantly reducing the cost of synthesis. In particular, this method synthesizes each output individually. It begins by contracting the STG to …

CMOS analog MAP decoder for (8,4) Hamming code

Design and test results for a fully integrated translinear tail-biting MAP error-control decoder are presented. Decoder designs have been reported for various applications which make use of analog computation, mostly for Viterbi-style decoders. MAP …

Efficient verification of hazard-freedom in gate-level timed asynchronous circuits

This paper presents an efficient method for verifying hazard freedom in timed asynchronous circuits. Timed circuits are a class of asynchronous circuits that utilize explicit timing information for optimization throughout the entire design process. …

Efficient algorithms for exact two-level hazard-free logic minimization

This paper presents a new approach to two-level hazard-free logic minimization in the context of extended burst-mode finite-state machine synthesis. The approach achieves fast single-output logic minimization that yields solutions that are exact in …

Analog decoding of product codes

A method is presented for analog soft-decision decoding of block product codes (block turbo codes). Extrinsic information is exchanged as analog signals between component row and column decoders. The component MAP decoders use low-power analog …

Cell library for automatic synthesis of analog error control decoders

This paper presents a cell library for automatic synthesis of analog error control decoders. By using some basic cells, analog error control decoders can be automatically synthesized. Also, using automatic synthesis based on this cell library, the …

Direct synthesis of timed circuits from free-choice STGs

Presents a new method to synthesize timed asynchronous circuits directly from the specification without generating a state graph. The synthesis procedure begins with a graph specification with timing constraints. A timing analysis extracts the timed …

Analog MAP decoder for (8, 4) Hamming code in subthreshold CMOS

An all-MOS analog implementation of a MAP decoder is presented for the (8, 4) extended Hamming code. This paper describes the design and analysis of a tail-biting trellis decoder implementation using subthreshold CMOS devices. A VLSI test chip has …