أنت هنا

Mobile Communication System

منذ 6 سنوات شهر واحد

الوصف

A mobile communication system with a base station and at least one mobile subscriber station including modulation means able to modulate a carrier wave with a request for access signal, and transmission means to transmit the thus obtained modulated carrier wave to said base station during a time slot of a time division multiple access structure. It is able to provide a mobile communication system with an improved spectral efficiency and a reduced possibility for collision,i.e. the probability that two (or more) subscribers transmit the substantially constant envelope signal within the same subslot and on the same pre-access carrier wave.

النواحي

In accordance with embodiments of the present invention, a swept laser source is provided that includes two cavities; a large cavity and a small cavity. The large cavity includes an active gain medium and could be formed by an optical fiber, free space and/or silicon. The small cavity includes a MEMS movable mirror to tune the output wavelength. The MEMS-based swept laser source can be used, for example, in applications that require fast wavelength sweeping without restrictions on single mode operation. For example, the MEMS-based swept laser source may be incorporated into a swept source optical coherence tomography system, which can provide in-depth imaging in many fields, such as medical imaging, process and quality control, multilayer coating inspection, 3D data storage, and spectroscopic applications.

حالة برائة الاختراع

مسجلة

الحالة

مسجلة

ارسل ملكيه فكريه أرسل ملاحظاتك