• Proceedings of the IEEK Conference
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• summer
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• pp.213-217
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• 2004

This paper presents a method of constructing the digital logic systems(DLS) using edge-valued decision diagrams(EVDD). The proposed method is as following. The EVDD is a new data structure type of decision diagram(DD) that is recently used in constructing the digital logic systems based on the graph theory. Next, we apply EVDD to function minimization of digital logic systems. The proposed method has the visible, schematical and regular properties.

• Journal of The Korean Association of Information Education
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• v.13 no.3
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• pp.341-349
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• 2009

In this paper, we proposed an Electric Circuit manipulation method to identify easily results of Digital Logic Circuits. Using this method for computer science educations, we can feasibly instruct and understand principles of a Digital Logic Circuit which is a basis of real Digital systems. Furthermore, we developed an PBL-based education program for Digital Logic Circuit concept and Boolean Algebra concept by applying the proposed Electric Circuit manipulation method and by explaining real life Digital Instrument examples. The experimental results are analyzed in views of the problem-solving ability and suitability of allocating degrees of difficulties to the developed Digital Logic Circuit problems.

• Journal of Practical Engineering Education
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• v.8 no.2
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• pp.95-101
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• 2016

In this paper, we introduce an implementation method of switch-based LED (Light Emitting Diode) Art logic circuits to help understanding the operation principle of digital logic circuits. Digital logic circuit practice using bread board is widely practiced in colleges or high schools in South Korea. However, actual digital logic circuit practice lacks examples of basic implementation, and as results of this problem, study with more complicated examples disturbs understanding the basic operation principle of digital logic circuits. Therefore, we proposed and tested an implementation method of switch-based LED Art logic circuits to help understanding the necessity of digital logic circuits which control signals of multiple output devices simultaneously.

• Proceedings of the IEEK Conference
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• 2002.07a
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• pp.220-223
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• 2002

The digital logic systems(DLS) is classified into digital combinational logic systems(CDLS) and digital sequential logic systems(SDLS). This paper presents a method of constructing the digital sequential logic systems without feedback. Firstly we assign all elements in Finite Fields to P-valued digit codes using mathematical properties of Finine Fields. Also, we discuss the operarional properties of the building block T-gate that is used to realizing digital sequential logic systems over Finite Fields. Then we realize the digital sequential logic systems without feedback. This digital sequential logic systems without feedback is constructed ny following steps. Firstly, we assign the states in the state-transition diagram to state P-valued digit dodo, then we obtain the state function and predecessor table that is explaining the relationship between present state and previous states. Next, we obtained the next-state function and predecessor table. Finally, we realize the circuit using T-gate and decoder.

• Journal of Practical Engineering Education
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• v.9 no.1
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• pp.41-48
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• 2017

In this paper, we proposed a method for digital logic circuit control, through arduino device programming with digital outputs, to design a curriculum for basic digital logic circuit practices. Curricula for arduino device programming and digital logic circuit are essentially practiced in engineering departments of colleges or high schools in South Korea. However, actual practice course lacks the experimental examples of digital logic circuit combined with arduino device programming. Furthermore, actual practice course lacks the curriculum in that students design and test their own digital logic circuits with the less cost than the oscilloscope. Therefore, to solve these problems in this paper, we proposed a curriculum for basic digital logic circuit practices during one semester. In this curriculum, students control and experiment their own digital logic circuits through arduino device programming with digital outputs.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.721-724
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• 2006

This paper presents a method of the constructing the digital logic switching functions and realizing the circuit design using partition techniques. First of all, we introduce the necessity, background and concepts of the partition design techniques for the digital logic systems. Next, we discuss the definitions that are used in this paper. For the purpose of the circuit design for the digital logic switching functions, we discuss the extraction of the partition functions. Also we describe the construction method of the building block, that is called the building block, based on each partition functions. And we apply the proposed method to the example, and we compare the results with the results of the earlier methods. In result, we describe the control functions, it means that we obtain the effective cost in the digital logic design for any other earlier methods.

• Journal of Practical Engineering Education
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• v.16 no.4
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• pp.481-489
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• 2024

The purpose of this study is to propose a new teaching method of the digital logic circuit so that students can cultivate digital literacy in diversifying future educational environments. In this paper, we analyzed the previous studies related to teaching methods for Tinkercad and digital logic circuits and suggested how to apply Tinkercad to the specific instruction design of the digital logic circuit. In addition, after showing the class design using Tinkercad to the actual lessons, It turns out two significant facts in a survey: to create a circuit that can implement the operation of the basic gate and to make it easier to understand the principles of the basic gate. The teaching method suggested in this study can be informative for students to acquire basic knowledge of electricity and electronics. Since Tinkercad is an open software based on cloud systems that are used not only in Korea but also foreign countries, it can be utilized in the lessons of digital logic circuits in the near future.

• International journal of advanced smart convergence
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• v.4 no.2
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• pp.34-37
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• 2015

An ideal teaching-learning method, such as the blended learning method, is to motivate interests in education and to allow active class participation of students. Students exposed to this method are hypothesized to be dedicated in learning and their school life. A research was conducted on $11^{th}$ graders in Daejeon city high school specialized in industry; the blended learning method was applied to a course, digital logic circuit and the effects on the students' learning were monitored. The result shows that compared with a common leaning method, the blended learning method is very effective in terms of increasing educational interest, class participation, the level of concentration in class and academic achievement of students. Also, it shows positive feedbacks from the students on the educational videos and the usage of the contents. Conclusively, the blended learning method effectively increases academic achievements through improved educational motivation and active class participation which positively affect the overall satisfaction of participants.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.8 no.2
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• pp.15-21
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• 2008

This paper discuss the sequential digital logic systems and arithmetic operation algorithms which is the important material in computer architecture using analysis and synthesis which is based on extension logic for binary logic over galois fields. In sequential digital logic systems, we construct the moore model without feedback sequential logic systems after we obtain the next state function and output function using building block T-gate. Also, we obtain each algorithms of the addition, subtraction, multiplication, division based on the finite fields mathematical properties. Especially, in case of P=2 over GF($P^m$), the proposed algorithm have a advantage which will be able to apply traditional binary logic directly.The proposed method can construct more efficiency digital logic systems because it can be extended traditional binary logic to extension logic.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.6
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• pp.1288-1293
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• 2005

This paper presents a design method for multiple-output combinational digital logic systems using time domain based on multiplexing(TDBM) and common multi-terminal extension decision diagrams(CMTEDD). The CMIEDDs represents extension valued multiple-output functions, while TDBM systems transmit several signals on a single lines. The proposed method can reduce the 1)hardware, 2)logic levels and 3)pins. In the logic system design, we use two types of decision diagrams(DDs), that is the common binary decision diagrams(CBDDs) and CMTEDDs. Also, we propose an algorithms to derive common multiple-terminal binary decision diagrams(CMTBDD) from CBDDs, and CMTEDDs from CMTBDDs. The CMTEDDs over CBDDs is more compactness in terms of number of non-terminal nodes, where the nodes for output selection variables are not included in the non-terminal nodes. In the logic design, each non-terminal nodes of an CBDDs and an CMTEDDs is realized by a multiplexer(MUX). In addition, we compare the proposed TDBM realization with the conventional one.