Archive for the 'LED wireless' Category

A novel use of LEDs to transmit audio and digital signals

Friday, November 7th, 2008

Abstract THE SUPERIORITY OF LIGHT-EMITting diodes (LEDs) over incandescent lights, due to long life expectancy, high tolerance to humidity, low power consumption, and minimal heat generation, is well supported. LEDs are used in message display boards, signal devices, and many other means of illumination. One important characteristic of LEDs is that they are semiconductor devices capable of fast switching with the addition of appropriate electronics. That is, the visible light emitted by LEDs can be modulated and encoded with audio information for broadcasting. Therefore, in addition to their normal functions as indication and illumination devices, LEDs can be used as communication devices for transmitting and broadcasting audio and digital information. Hence, they can become part of read more

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Wireless Optical Trasnsmissions with white colored LED for Wireless Home Links

Friday, November 7th, 2008

Abstract In this paper, we propose the wireless optical communication system with white colored LEDs for wireless home link (WHL). The white colored LEDs have a high power output and are regarded as lamps for the next generation. In the proposed system, this device is used for wireless home link. The proposed system is suitable for private networks such as consumer communication networks. From numerical and simulation results, it is confifmed that the proposed system is available and the problems to be solved are made clear. Download read more

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