The reliability and security of memories are crucial considerations in the modern digital system design. Traditional codes usually concentrate on detecting and correcting errors of certain types, e.g. errors with small multiplicities or byte errors, and cannot detect or correct unanticipated errors. Thereby, they may not be sufficient to protect memories against malicious attackers with strong ...

Sequential circuit fault simulators use the multiple bits in a computer data word to accelerate simulation. We introduce, and implement, a new sequential circuit fault simulator, a parallel pattern parallel fault simulator, ZAMBEZI, which simultaneously simulates multiple faults with multiple vectors in one data word. ZAMBEZI is developed by enhancing the control ow of existing parallel pattern...

The use of efficient algorithm to detect JPEG file is vital to reduce time taken for analyzing ever increasing data in hard drive or physical memory. In previous paper we proposed single-byte-marker algorithm for header detection. In this paper, we propose a novel algorithm so-called dual-byte-marker for header detection. It is based on a newly proposed FORHEADER model. Two experiments have bee...

Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping (FHSS) techniques are widely used to implement code-division multiple access (CDMA) in wireless communication systems. Both DSSS FHSS systems help reducing the effects of interference on transmitted information making it robust against channel impairments. uses a signal bandwidth that is much broader than bandwidth. Traditionally, wid...