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Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera.
The first centralized IP camera, the AXIS Neteye 200, was released in 1996 by Axis Communications. [3] Although the product was advertised to be accessible from anywhere with an internet connection, [4] the camera was not capable of streaming real-time video, and was limited to returning a single image for each request in the Common Intermediate Format (CIF).
Sony also introduced the DSC-T99 14.1 MP CCD camera for about $250. The three cameras above offered a 3D Sweep Panorama feature, which let one take panoramic pictures in a single press-and-sweep motion. The high-speed burst of frames is digitally stitched together to automatically create a detail-packed 3D panorama.