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Frequency filters with tunable current amplifier
Jemelík, Lukáš ; Lattenberg, Ivo (referee) ; Jeřábek, Jan (advisor)
The bachelor thesis deals with the designing of active frequency filters of the second – order which are make use of active elements. These filters were designed by means of autonomous circuits. Digitally Controlled Current Amplifier DCCA and Multiple Output Current Follower MO-CF were used as active elements. Designed filters works in current mode. The bachelor thesis is divided into five chapters. In the introductory part there are described general characters of frequency filters, the second part contains the description of the active elements, the third part includes the method of construction high – order filters. In fourth part there are described particular circuitry, their transmission functions and confirmation of their functionality in computer software.
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Methods of access to PostgreSQL databases in .NET Framework
Henzl, Václav ; Kouřil, Jiří (referee) ; Lattenberg, Ivo (advisor)
The results of this work are two major projects - NpgObjects and PagedDataGridView. NpgObjects is a simple ORM framework to enable the mapping database tables to objects in the common language runtime. It contains a specially designed generator which generates classes in C# from information obtained from the database. These classes are mapping on the database tables one to one. NpgObjects allows all the basic database operations - SELECT, INSERT, UPDATE and DELETE. PagedDataGridView is a component for displaying tabular data. In cooperation with NpgObjects can paginate database data and manage the flow of data into application. It provides a comfortable user interface, which can easily navigate between different pages of data.
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DNS protocol client with a graphical interface suitable for lecturing
Sousedík, Tomáš ; Lattenberg, Ivo (referee) ; Jeřábek, Jan (advisor)
This thesis describes DNS protocol and messages it uses to obtain desired information. The protocol is described from its creation and occasions that caused the creation of the protocol. Later on are discussed multicast capabilities of name resolution this section is focused on mDNS and LLMNR. In the second part is detailed description of the structure of the messages and their useage. In the last part is described the design of the application, which was based on the specifications listed in RFCs. One chapter is devoted to a detailed description of the application and its individual parts. A large part is devoted to the testing. There are also described problems that occurred during application development and their solutions.
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Framework for test creating
Havelka, Jakub ; Červenák, Rastislav (referee) ; Lattenberg, Ivo (advisor)
This thesis deals with the topic WPF application framework for creating tests in the .NET Framework. source codes are written in Cd#. The first part deals with the theoretical description of the development of the .NET Framework, and the second part deals with the practical implementation of the award .
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Extraction of information from identity documents
Hudcovský, Erik ; Lattenberg, Ivo (referee) ; Caha, Tomáš (advisor)
This thesis is about the processing information from personal documents (ID card or passport) into the form that is further easily to be processed for computers and the IT industry in general. This process is implemented by the application I developed as part of my bachelor's thesis. The application contains the scanned document, the document type and the form of the required output. As the output we get the document type in the required format. The entire application is using in process an external OCR tool (OpticalCharacter Recognition), which is implemented so that it can be easily replaced by another OCR tool. I used Tesseract in my application. This OCR tool is the simpliest and most accurate of the free OCR tools at the same time. It also has strong community support and is still being developed. In this thesis, I also focused on its testing, both on the samples of text I created, and on real scans of documents. The application is also processed as an installation package, so it can be easily imported into other projects. The entire application is displayed as OpenSource on GitHube under the free license of MIT.
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Temperature measurement with data transfer via WLAN
Müller, David ; Číž, Radim (referee) ; Lattenberg, Ivo (advisor)
This diploma thesis deals with the design of temperature sensor and display units, which communicate via a WLAN network. The theoretical part provides an overview of various methods of temperature measurement including several specific types of temperature sensors, and also introduces the WLAN standard as well as TCP and UDP protocols. The design solution is focuses first on the system architecture and design of the communication protocol, followed by the implementation of both types of equipment, starting with selection of components, through design diagrams and printed circuit board patterns, up to production and commissioning. The following parts of this thesis deal with the design of programs for the controlling microcontroller units of both units and the configuration application for PC.
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RDS-TMC signal processing
Plch, Jan ; Kubánek, David (referee) ; Lattenberg, Ivo (advisor)
At the begining of my work is discourse about basic quality signal RDS, that is transmission by the help of radio signal. Described is way encoding, division to the groups as well as internal rules insider and per informative and preventive part block. Follows description obligatory content of all groups as well as description their content according to insider and version. Next chapter is devoted detailed description content groups news TMC which contain traffic and travelling informations . Described is basic space exploited for track telling. Follows explication obligatory part message and show transmission identifiers on data that are painted user. After it are circumscribed next optional data and their fission to the caregory. Mentioned are also possibilities fission broadcast messages on single-group or multi-gropup and their following management in acceptor. Final part work paies description activities created application servant for signal processing RDS-TMC with explication concurrence and functionality single function.
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Network communication in .NET Framework
Müller, David ; Hasmanda, Martin (referee) ; Lattenberg, Ivo (advisor)
This bachelor thesis provides an introduction to the .NET environment and its tools for network communication as well as the principles of web applications and services. It also briefly describes the C# programming language, JavaScript and the principles of object-oriented programming. On this basis, the second part of the thesis describes the development of a web application: The Qwirkle game for 2 to 4 players. Its development is documented from analysis through design and implementation up to testing of the finished application.
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Frequency filters with difference current amplifier
Jirounek, Matěj ; Lattenberg, Ivo (referee) ; Vrba, Kamil (advisor)
This master´s thesis deals with the differential filters working in the current mode. It is dealt with the design methodologies of these filters and conversion circuits from voltage to current mode. Own work deals with 4 types of differential participation of structures. In this work there has been used programs SNAP and OrCAD. These programs were used for simulations of filters to proposed proper design. Results from this thesis is showed by graphs.
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