In this paper a high-performance 1-D DCT processor is shown. It is based on a FFT algorithm that benefits from complex residue arithmetic to reduce the number of operations required. The array is based on the Quadratic Residue Number System (QRNS) which enables the implementation of complex adders (multipliers) with only two modular adders (multipliers). Thus, the number of additions and multip...

| Field-Programmable Gate Arrays (FPGAs) are now widely used for the implementation of digital systems and many commercial architectures are available. Although the literature and data books contain detailed descriptions of these architectures, there is very little information on how the high-level architecture was chosen and no information on the circuit-level or physical design of the devices...

In order to determine the applicability of both programmable software tools and pro-grammable hardware for asynchronous logic applications an implementation, employing FPGA devices, of the instruction decode and the instruction execution stages of an asyn-chronous microprocessor, the ADLX, is presented. The foundation for that microprocessor is based on the employment of event driven logic, spe...

The photo-mask cost of standard-cell-based ASICs has been increased so prohibitively that low-volume production LSIs are difficult to fabricate due to high non-recurring engineering (NRE) cost including mask cost. Recently, user-programmable devices, such as FPGAs are started to be used for low-volume consumer products. However, FPGAs cannot be replaced for general purpose because of its lower ...

Programmable logic devices (PLDs) are gaining in acceptance, of late, for designing systems of all complexities ranging from glue logic to special purpose parallel machines. Higher densities and integration levels are made possible by the new breed of complex PLDs and FPGAs. The added complexities of these devices make automatic computer aided tools indispensable for achieving good performance ...

Computer architectures can use custom logic in addition to general purpose processors to improve performance for a variety of applications. The use of custom logic allows greater parallelism for some algorithms. While conventional CPUs typically operate on words, fine-grained custom logic can improve efficiency for many bit level operations. The commodification of field programmable devices, pa...

Cryptographic algorithms are ubiquitous in modern communication systems where they have a central role in ensuring information security. This thesis studies efficient implementation of certain widely-used cryptographic algorithms. Cryptographic algorithms are computationally demanding and software-based implementations are often too slow or power consuming which yields a need for hardware imple...

Programmable devices in the Field Programmable Gate Array (FPGA) technology enable design and prototyping implementation of complex digital systems executing their tasks on central processing units (CPU) and application-specific logic components. The paper presents development of a custom processor system in the FPGA device. The system is based on a CPU with an accumulator easily extendable wit...

Metal–Oxide–Semiconductors In article number 2201110 by Tae-Sik Yoon and coworkers, a tunable multilevel gate oxide capacitance flat-band voltage shift characteristics in double-floating-gate metal-oxidesemiconductor capacitors are demonstrated as operating with both conducting filament formation electrical charging the stack, depending on constituent materials device geometries. It paves way f...