The FCC originally enacted the Subsidiary Communications Authority(SCA) in 1955. In 1983, the FCC eliminated the licensing requirementfor SCAs that subsequently permitted radio stations to use ...

Fig. 1: A simplified linear detector circuit of the Bose FM multiplex detector from the patent documents. Fig. 2: John Bose enjoys a hearty meal in the Alpine FM transmitter building in July, 1939.

The U.S. Patent and Trademarks Office has issued U.S. Patent No. 7,146,172, entitled "Multi-Carrier Communications with Adaptive Cluster Configuration and Switching," to ADAPTIX, a pioneer in the ...

The CP-OFDM modulation scheme will have many options. Variable subcarrier spacing (SCS) will be 3.75, 15, 30, 60, 120, 240, 480 kHz with sub-1 GHz of 15 and 30 kHz and sub-6 GHz of 15, 30, and 60 kHz, ...

In a pioneering move to bolster the precision of Global Navigation Satellite Systems (GNSS), researchers have crafted advanced processing techniques for subcarrier modulated signals. These innovations ...

A researcher from the University of Essex claims that a technique used to send more than 400Gbit/s of data in December last year over a single 3km piece of multimode fibre could be pushed to 1Tbit/s.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Figure 1. Details of NTSC FDM spectrum around the chrominance subcarrier. Click here to see an ...

VeEX, a global player in innovative test and measurement solutions for next-generation networks, has announced that the United States Patent and Trademark Office has recently issued U.S. Patent No. 10 ...