Belden. has filed a patent for a cable network system allowing bidirectional communication at an enhanced duplex frequency range of 5 MHz to 650 MHz. The system includes first and second amplifiers, shaping circuits, and a shaping module, enabling simultaneous communication without a diplex filter. GlobalData’s report on Belden gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Belden, IoT network security was a key innovation area identified from patents. Belden's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Cable network system for enhanced duplex frequency communication

Source: United States Patent and Trademark Office (USPTO). Credit: Belden Inc

A newly filed patent (Publication Number: US20240039578A1) describes a cable network system designed to enhance duplex frequency range communication bidirectionally. The system includes a first amplifier device with various components such as shaping circuits, amplifiers, and splitters to receive, equalize, amplify, and transmit signals in both directions without the need for a diplex filter. The second amplifier device in the system is configured similarly to the first but operates in the opposite direction, ensuring bidirectional communication at an enhanced duplex frequency range without amplifying signals in the wrong direction. The system is tailored for cable network signals, with the first direction being downstream from a network provider to a subscriber and the second direction being upstream from the subscriber to the network provider.

Furthermore, the patent details an amplifier device specifically designed for bidirectional communication at an enhanced duplex frequency range within a cable network system. This device includes shaping circuits, amplifiers, and splitters to condition and transmit signals in both directions simultaneously without the need for a diplex filter. The system operates within a frequency range of about 5 MHz to 650 MHz, ensuring full duplex communication without limitations of a half-duplex frequency range. The amplifier device is capable of amplifying signals in either the downstream or upstream direction, with separate paths for amplification and non-amplification to ensure efficient signal processing and transmission.

To know more about GlobalData’s detailed insights on Belden, buy the report here.

Premium Insights


The gold standard of business intelligence.

Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.


GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.