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iDirect Granted Patents For Leading Satellite Industry Technologies


iDirect, Inc. (iDirect), a company of VT Systems Inc (VT Systems) and a world leader in satellite-based IP communications technology, has received a series of intellectual property patents protecting critical aspects of its Intelligent PlatformTM for satellite IP communications. The patents secure proprietary algorithms that govern iDirect’s industry leading Deterministic Multi-Frequency TDMA (Time Division Multiple Access) satellite transmission scheme and its popular Network Planning Tool.

Deterministic Multi-Frequency TDMA, or D-TDMA, is an IP data transmission scheme offered exclusively by iDirect, which delivers industry leading bandwidth efficiencies and responsiveness. iDirect’s D-TDMA algorithm monitors user demand up to 10 times per second, instantly and continually prioritizing bandwidth allocation based on real-time conditions such as queue depth, Quality of Service (QoS) configurations and other data prioritization requirements. This feature is critical for shared TDMA networks that support real-time traffic or IP applications spanning multiple remotes and that must balance total network demand with dynamic user requirements governed by guaranteed service level agreements.

“iDirect has introduced critical technology innovations that optimize D-TDMA to increase satellite bandwidth efficiency and lower the cost of operational costs for service providers. We will continue to focus on additional advancements in this area – improving efficiencies on both the inbound and outbound channel – that will help enable our customers to maximize satellite capacity and expand their networks. Our decision to secure these patents reflects our desire to protect and promote our reputation as an industry innovator.”

Chief Technology Officer, iDirect

iDirect has also patented the analytical methodology that underlies its Network Planning Tool, a proprietary analysis tool that enables service providers to gauge more accurately their capacity, hardware and carrier requirements. Using the tool, service providers specify their unique network criteria such as number of terminals, applications supported, data rates, oversubscription ratio and other information. The iDirect Network Planning Tool then determines how a network should best be designed and supported including full hardware, software and system features.

iDirect, a subsidiary of VT Systems, is transforming the way the world gets and stays connected. The company’s satellite-based IP communications technology enables constant connectivity for voice, video and data applications in diverse and challenging environments. These include extending private networks to remote offices; supporting mobile connectivity across land, sea and air; providing rural telephony and Internet broadband; and maintaining communications in the wake of disasters and network failures. The iDirect Intelligent Platform™ integrates advanced technology into iDirect’s portfolio of hubs, routers and network management software to address the growing complexity of deploying and managing global IP networks. With more than 13 years of global satellite communications experience, iDirect serves customers in 30 countries through a diverse network of channel partners, including some of the largest satellite providers, operators and carriers in the world and seven of the World Teleport Association’s Global Top Ten. Headquartered in Herndon, Virginia, iDirect has offices in Europe, Asia, Middle East, Africa and Latin America. Please visit

VT Systems and its subsidiaries are preferred providers of engineering solutions, products, integrated systems, and services in the Americas across the core business areas of marine, aerospace, electronics and land systems. Headquartered in Alexandria, Virginia, VT Systems operates throughout North America and offers a broad range of proven innovative services to both the commercial and government sectors. VT Systems is a wholly owned subsidiary of Singapore Technologies Engineering Ltd. Please visit

Media Contacts:

Julie Gouldin
Vice President Corporate Marketing
iDirect Technologies

Sarah Thuman
Corporate Communications Manager
VT Systems
Tel: 703-739-2610


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