High-Speed Ring Bar Code Reading Method

1D Bar Code Reading on Camera Phones

The availability of camera phones provides people with a mobile platform for decoding bar codes, whereas conventional scanners lack mobility. However, using a normal camera phone in such applications is challenging due to the out-of-focus problem. In this paper, we present the research effort on the bar code reading algorithms using a VGA camera phone, NOKIA 7650. EAN-13, a widely used 1D bar c...

High-Speed Token Ring

The Emerging Need for High-Speed Token Ring, Today’s High-Speed Options for Token Ring Users, The Technology and Timescales of High-Speed Token Ring, Defining the Requirements for High-Speed Token Ring, High-Speed Token Ring and Virtual LANs, High-Speed Token Ring and Quality of Service, Priority Access for Voice and Video Traffic, Packet Priority and Token Ring Switches, Packet Priority and Hi...

Error Estimates for a Bar Code Reconstruction Method

We analyze a variational method for reconstructing a bar code signal from a blurry and noisy measurement. The bar code is modeled as a binary function with a finite number of transitions and a parameter controlling minimal feature size. The measured signal is the convolution of this binary function with a Gaussian kernel. In this work, we assume that the blur kernel is known and establish condi...

New Code Construction Method and High-Speed VLSI Codec Architecture for Repeat-Accumulate Codes

Repeat-Accumulate code has been widely used in various practical communication systems due to its special structure that can be encoded with a low complexity turbo-like encoder and decoded with a high-speed parallel algorithm. However, the construction of RA codes with large girth is still a challenging problem. In this paper, the girth upper bound of RA codes is analyzed and a novel RA code co...

" Bar - Code Reader " A Moving Bar - Code Reader for the Functionally Impaired Designers :