Dear Colleagues,

The development of digital circuits makes research on logic synthesis issues extremely important. It is crucial to develop such methodologies for designing digital circuits that will provide solutions effective in terms of the number of resources used (Area), speed of operation (Speed), or ensuring low power consumption. Especially, design techniques associated with power consumption limitation have become extremely popular recently. These issues are extremely important in the area of programmable devices (FPGA, CPLD, and SoC). The problems of decomposition, technology mapping, coding of internal states, and many other issues are directly related to obtaining effective solutions. Of course, testing and validation are an inseparable element of the synthesis of digital circuits.

It is worth emphasizing that the rapid development of Cyber-Physical Systems (CPS) and the Internet of Things (IoT) also forces the development of effective techniques for designing these systems at the lowest level: the physical layer. Unfortunately, this aspect is often overlooked in many works on CPS. In this situation, the concept of the Synthesis of Cyber-Physical Systems appears, where the issues of system efficiency in terms of area; speed; and, in particular, power consumption are key. There are issues related to the effective implementation of measurement algorithms, data transmission issues, and effective motor control.

Of course, logic functions can be implemented in many ways. For industrial applications, the universal way to implement control functions is to use the Programmable Logic Controller (PLC). From this perspective, an effective digital system is an efficiently designed PLC that implements an effective control algorithm.

In this short introduction, only the outline of issues related to ‘’Energy, Area, Speed—Efficient Digital Circuits’’ is presented, which in the general case is much wider. I encourage authors who identify their work with this title to submit their work to the Special Issue, even if some issues are not explicitly mentioned here.

Dr. Marcin Kubica
Guest Editor

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• Logic synthesis
• Decomposition
• Technology mapping
• Computer-aided design
• Petri net-based systems
• FPGA
• CPLD
• Programmable Logic Controller (PLC)
• Cyber-physical systems (CPS)
• Cyber-physical synthesis
• CPS measuring systems
• CPS digital motor control