Harmonic. has been granted a patent for a virtualized Cable Modem Termination System (CMTS) designed to deliver high-speed data services to remote physical devices. The system utilizes a core routing engine and multiple compute servers, employing MPLS Transport Stream tunnels over Ethernet links, all implemented on commercial off-the-shelf hardware. GlobalData’s report on Harmonic gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Harmonic, Cloud gaming was a key innovation area identified from patents. Harmonic's grant share as of July 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Virtualized cable modem termination system for high-speed data services
The patent US12052118B2 describes a virtualized Cable Modem Termination System (CMTS) designed to deliver high-speed data services to remote physical devices (RPDs). The system comprises a core routing engine (CRE) responsible for packet switching and routing, along with multiple core servers (CSs) that execute CMTS functions. Notably, the architecture utilizes Multiprotocol Label Switching (MPLS) Transport Stream tunnels over Ethernet links connecting the CRE and CSs, all implemented on commercial off-the-shelf (COTS) hardware. The claims detail various functionalities, including dynamic resource allocation by the CRE, the establishment of Link Aggregation Groups (LAG) for enhanced connectivity, and the ability to emulate a single Layer 3 CMTS for streamlined management.
Further claims outline the operational capabilities of the CMTS, such as the use of Virtual LANs (VLANs) and MPLS tunnels for traffic encapsulation, ensuring efficient communication between the CRE and CSs. The system is designed for redundancy, allowing one core server to take over functions from another in case of failure. Additionally, the patent specifies management functionalities, including access protocols like Secure Shell (SSH) and Simple Network Management Protocol (SNMP). The architecture supports a robust and flexible network infrastructure, facilitating high-speed data services while leveraging existing COTS hardware for cost-effectiveness and scalability.
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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.
