The position accuracy of the bottom dead centre (BDC) a slider is crucial performance index to measure quality multi-link mechanical press. At present, research on improving BDC mainly focuses error compensation, and there lack tolerance design transmission mechanism according requirements BDC. In this paper, motion output press characterized by inclined angle slider. Based loop increment metho...

This paper proposes the use of an Error-Resilient Entropy Coding (EREC) scheme for the transmission of JPEG images across a Bluetooth wireless network. Bluetooth, being an ad-hoc networking standard, can be used in multiple environments, often under difficult conditions, leading to limited bandwidth and significant Bit Error Rates (BER). Compression and transmission provisions, that avoid catas...

Video compression standards commonly employed in the delivery of real−time wireless multimedia services regularly adopt variable length codes (VLCs) for efficient transmission. This coding technique achieves the necessary high compression ratios at the expense of an increased system’s vulnerability to transmission errors. The more frequent presence of transmission errors in wireless channels re...

We develop a custom Bit Error Rate test bench based on Altera’s Stratix II GX transceiver signal integrity development kit, demonstrate it on point-to-point serial optical link with data rate up to 5 Gbps, and compare it with commercial stand alone tester. The 8B/10B protocol is implemented and its effects studied. A variable optical attenuator is inserted in the fibre loop to induce transmissi...

A robust image transmission system incorporating perceptually-based coding and error protection is proposed for wireless channels. The perceptually-based image coder consists of a wavelet transformation, uniform quantization, and variable-length entropy encoding. The coded data is placed in a spatially scalable stream divided into segments of varying perceptual importance and tolerance to trans...

The HILN (Harmonic and Individual Lines plus Noise) MPEG-4 parametric audio coding tool allows efficient representation of general audio signals at very low bit rates. Therefore possible applications include transmission over IP or wireless channels which are both characterised by specific transmission error models. On the other hand, since parametric audio coding is a relatively new technique ...

Noisy channels have significant influence on the quality of image transmission as the error rates increase and a degrading affect at higher error rates. This paper presents a recovery scheme for image transmission over noisy channels based on a hybrid transform and error correcting codes with error replacement strategy. In this paper we describe allocating redundant bits based on some importanc...