Mr. Robert Alexandru Dobre Profile

Robert Alexandru Dobre

at Univ Politehnica of Bucharest

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 31 December 2020 Paper

Paper

Security and propagation issues and challenges in VLC and OCC systems

Simona Riurean, Robert Alexandru Dobre, Alina-Elena Marcu

Proceedings Volume 11718, 117182B (2020) https://doi.org/10.1117/12.2572029

KEYWORDS: Light emitting diodes, Network security, Wireless communications, Optical communications, Data communications, Computer security, Cameras, Geometrical optics

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Proceedings Article | 31 December 2020 Paper

Paper

Visible light communications: current challenges and prospects

Alina-Elena Marcu, Robert-Alexandru Dobre, Marian Vlădescu

Proceedings Volume 11718, 117182F (2020) https://doi.org/10.1117/12.2572074

KEYWORDS: Visible radiation, Light emitting diodes, Modulation, Cameras, Receivers, Transmitters, Optical communications

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Proceedings Article | 31 December 2018 Paper

Paper

Investigation of power LEDs response time in visible light communications

Alina Marcu, Robert Dobre, Adela Vintea, Marian Vlădescu

Proceedings Volume 10977, 1097719 (2018) https://doi.org/10.1117/12.2324937

KEYWORDS: Light emitting diodes, Oscilloscopes, Relays, Telecommunications, Visible radiation, Resistors, Receivers, Infrared radiation, Photodiodes, Light sources and illumination

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Proceedings Article | 31 December 2018 Paper

Paper

LED chaotic circuit targeting secret communication

Octaviana Datcu, Robert-Alexandru Dobre, Mihai Stanciu

Proceedings Volume 10977, 109772Z (2018) https://doi.org/10.1117/12.2324894

KEYWORDS: Light emitting diodes, Resistors, Analog electronics, Transmitters, Telecommunications, Complex systems, Device simulation, Diodes, Switching, Signal processing

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Proceedings Article | 14 December 2016 Paper

Paper

Analysis of power supply circuits for electroluminescent panels

Andrei Drumea, Robert Alexandru Dobre

Proceedings Volume 10010, 100101D (2016) https://doi.org/10.1117/12.2246102

KEYWORDS: Power supplies, Lamps, Light emitting diodes, Light sources, Light, Transformers, Device simulation, Microcontrollers, Analog electronics, Capacitors

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Proceedings Article | 14 December 2016 Paper

Paper

Low energy switching driver for printed electrochromic displays

Ciprian Ionescu, Robert Alexandru Dobre

Proceedings Volume 10010, 100100I (2016) https://doi.org/10.1117/12.2246104

KEYWORDS: Switching, Integrated circuits, Electrodes, Video, Switches, Cameras, Capacitance, LCDs, Microcontrollers, Resistance

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Proceedings Article | 14 December 2016 Paper

Paper

Steganographic embedding of a secret message in a video flow

Octaviana Datcu, Robert A. Dobre, Mihai Stanciu

Proceedings Volume 10010, 100103B (2016) https://doi.org/10.1117/12.2246036

KEYWORDS: Video, Image encryption, Image resolution, Steganography, Statistical analysis, Cryptography, RGB color model, Telecommunications, Detection theory, Optoelectronics

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Proceedings Article | 14 December 2016 Paper

Paper

Study on determining the photometric parameters for a white LED using a light meter

Alina Marcu, Robert Dobre, Marian Vlădescu

Proceedings Volume 10010, 1001018 (2016) https://doi.org/10.1117/12.2244505

KEYWORDS: Light emitting diodes, Light sources, Light, Sensors, Tungsten, Mercury, Sodium, Eye, Solid state lighting, Optical sensors

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Proceedings Article | 14 December 2016 Paper

Paper

Development and testing of an audio forensic software for enhancing speech signals masked by loud music

Robert Dobre, Cristian Negrescu, Dumitru Stanomir

Proceedings Volume 10010, 100103A (2016) https://doi.org/10.1117/12.2243356

KEYWORDS: Forensic science, Denoising, Multimedia, Digital filtering, Signal processing, Electronic filtering, Switches, Optical filters, Acoustics, Bandpass filters

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Proceedings Article | 20 February 2015 Paper

Paper

Performance studies of electrochromic displays

Ciprian Ionescu, Robert Alexandru Dobre

Proceedings Volume 9258, 925833 (2015) https://doi.org/10.1117/12.2072317

KEYWORDS: Electrodes, Switching, Bridges, Logic, Reflectivity, Display drivers, Amplifiers, Microcontrollers, Temperature metrology, Electronics

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Proceedings Article | 20 February 2015 Paper

Paper

Study on electrical and thermal behavior of organic photovoltaic (OPV) cells

Robert Alexandru Dobre, Ciprian Ionescu, Marian Vlădescu, Valentin Adrian Niţă

Proceedings Volume 9258, 92581G (2015) https://doi.org/10.1117/12.2072275

KEYWORDS: Solar cells, Silicon, Electronics, Organic photovoltaics, Semiconductors, Light sources, Organic electronics, Lamps, Light emitting diodes, Optical sensors

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Showing 5 of 11 publications

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