Multimedia technology base

Subject description

The course introduces technical backgruoud, illustrated thorugh examples.

Charge, current, electric field, potential, voltage. Conductor, insulator. Capacity, capacitor, electric energy. (capacitive microphone, liquid crystals, capacitive touch screens, batteries).

Conduction, resitance, resistor. Source. Grounding. Direct current electric circuits. Adjusted load. System’s energy efficiency. (power adapters, lines, cables: coaxial, lines coupling, connectors, protection, fuses, resistive microphone).

Magnetic field, magneticc flux density, magnetic, magnetization. (speaker, cathode ray tube, magnetic record)

Induction, inductivity, coil, set of coils, magnetic energy. (crosstalk, disturbances in the network, twisted pair, power adapters).

Calculating the harmonic grandeur. Impedance. Alternating current electric circuits. Line impedance. Adjusted loads. Resonant circuit, resonance. Transformer. Transients. (switching devices, filters, cable impedance, adjusted impedance load).

The longitudinal and transverse waves. Sound and electromagnetic waves. Wave equation. Telegraph equation.

Radiation of waves in space, communications equation, direction and surface.

Barriers and Fresnel zone ellipsoid, wedge attenuation barriers. Notable area courses and radar.

Refraction on the boundary of different materials. Collecting lens and the collecting mirror. Total reflection of waves. Waveguides.

Shannon and performance of a link. Thermal noise. Distractions.

The subject is taught in programs

Objectives and competences

The objective of the course on Multimedia technology base is to familiarize students with fundamental of phisics and basic technologies of (electrotechnical) engineering wihch multimedia relies on. The subject is a basis for understanding professional courses and practical work in forthcoming semesters of multimedia studies.

The course deals with the systematic and electrical engineering technology base on which multimedia is based. Awareness and use of material is reinforced with a pronounced shift from practical experiments to the physical phenomenon. The goal is to get a deeper knowledge of high school physics with an emphasis on events that are facing media technologist. The course develops science-oriented analytical-synthetic thinking. Students learn about the basics of electrtechnics, sound waves and electromagnetic waves (radio and optics) with an emphasis on treatment and understanding of communication and multimedia systems. The course also shows the physical and technological limitations of broadcasting systems from the standpoint of radio wave propagation and noise. In the lab students are introduced to basic methods of measuring physical quantities. The subject is the basis for practical work and understanding of technical subjects in higher levels of the study program.

Teaching and learning methods

Lectures, laboratory work, homeworks and seminars, IT assisted learning.

Expected study results

After successful completion of the course, students should be able to:

– classify the physic phenomena which are Multimedia technology base,

– explain the basic laws in the field of (electrical) engineering,

– measure basic physical quantities from the field of electrotehnics, sound, optics and radio,

– explain clearly the technological capabilities of modern multimedia devices,

– select the most appropriate transmission media for multimedia services based on the capabilities of the communication link,

– evaluate the physical limitations of future multimedia devices,

– calculate the technological parameters of multimedia devices.

Basic sources and literature

Sinigoj A. R.: Elektrotehnika 1, 2 in 3, Založba FE in FRI, Ljubljana, 2009, ISBN – 978-961-243-044-3, COBISS.SI-ID – 247465216, ISBN – 978-961-243-045-0, COBISS.SI-ID – 2474654726 in ISBN – 978-961-243-046-7, COBISS.SI-ID – 247465728.
Humar I.: Laboratorijske vaje iz TOM, LOEE, 2019, ISBN – 978-961-6999-15-1, COBISS.SI-ID – 299092480.
Dorf  R. C., Svoboda J. A.: Introduction to electric circuits, Wiley, 2006, ISBN – 0-471-73042-4; 978-0-471-73042-2, COBISS.SI-ID – 5612884.
Ulaby F. T.: Fundamentals of Applied Electromagnetics, Pearson Prentice Hall, New Jersy, 2004, ISBN – 0-13-185089-X; 0-13-145726-8, COBISS.SI-ID – 10907698.
Albach M.: Grundlagen der Electrotechnik 1, 2 in 3, Pearson Studium, Muenchen, 2005, ISBN – 3-8273-7106-6; 978-3-8273-7106-5, COBISS.SI-ID – 5635668 in ISBN – 3-8273-7108-2, COBISS.SI-ID – 5611860.
Halliday D., Resnick R., Walker J.: Fundamentals of Physics, Wiley, 2014, ISBN – 978-1-118-23072-5, COBISS.SI-ID – 10842964.
Vidmar Matjaž. Radiokomunikacije. 1. izd. Ljubljana: Fakulteta za elektrotehniko, cop. 2005. 1 zv. (loč. pag.), ilustr. ISBN 961-243-026-8, 132 str., COBISS.SI-ID 223773696
Batagelj Boštjan, Vidmar Matjaž, Optične komunikacije – laboratorijske vaje, FE, Ljubljana, 2003, ISBN 961-6371-43-6, 170 strani., COBISS.SI-ID 121988608
Vidmar Matjaž, Sevanje in razširjanje – laboratorijske vaje, FE, Ljubljana, 1998, ISBN 961-6210-50-5, 129 strani., BISS.SI-ID 79325440
Spletna učilnica: http://e.fe.uni-lj.si