I am so busy this week :( however this blob need to go on. In this week we continue our lesson about bluetooth and another wireless technology. So here they are.....
- concept: focus on point to point and point to multiple with small network called piconets
- when multiple network exist within the same room they become known as scatternet
- each piconet hold up 8 active unit
Bluetooth is a wireless technology that is composed of hardware, software and interoperability requirement. Bluetooth is specification for short-,range radio link between mobile computers, mobile phones, digital camera and other portable devices.
FUTURE OF BLUETOOTH
Many think that Bluetooth is a technology that is going to be here to stay, however, just as many disagree. It is believed by ,many that there is a huge future for bluetooth. Many believed that bluetooth will be able to compete with other wireless technologies such as WiFi and it could possibly eliminates technologies such as IrDA(Infrafed Data Association)
BLUETOOTH ADVANTAGES AND DISADVANTAGES
bluetooth allow three types of data links between any two holes:
Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 0.74 micrometers (µm) to 300 µm. This range of wavelengths corresponds to a frequency range of approximately 1 to 400 THz, and includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements.
DIFFERENT REGIONS IN THE INFRARED
objects generally emit infrared radiation across a spectrum of wavelength, but somestimes only a limited region of the spectrum is of interest because sensors usually collect radiation only within a specific bandwith. Therefore, the infrared is often subdivided into smaller sections
commonly used sub-division scheme:
i think that's all see yaaa...