Market Context — Why This Technology, Why Now

The accelerating global digital transformation is driving demand for highly efficient and flexible communication infrastructures. Broadcasting systems face pressure to deliver more granular, localized, and reliable information, especially for emergency alerts and targeted content. This technology offers a critical upgrade to existing FDM networks, enabling enhanced data capacity and operational agility, which is vital for maintaining competitiveness and meeting evolving regulatory requirements in smart city and disaster response initiatives.

Key Competitive Advantages
01

Maximizes data volume by multiplexing TxIDs onto FDM subcarriers, enabling high-efficiency simultaneous transmission of multiple identification data within limited bandwidth.

02

Significantly enhances system design and operational management flexibility in complex broadcast networks by efficiently managing and receiving identification information for each relay station.

03

Provides a stable legal foundation for business expansion, having been granted after overcoming examiner objections and comparison with 8 prior art documents.

Market Opportunity
📡 Broadcast Infrastructure
$3.5B globally (AI est.)
Digital broadcasting demands enhanced functionality and efficient operations. Smart FDM systems can simultaneously improve service quality and operational efficiency.
Major broadcast network operators Satellite communication providers Digital media infrastructure developers
💡 IoT & Smart City
$2.0B globally (AI est.)
Efficient identification and management of diverse sensors and gateways in smart cities, along with information transmission to widely dispersed IoT devices, are increasingly critical.
Smart city solution integrators IoT platform providers Telematics and connected device manufacturers
🚨 Disaster Information Systems
$1.5B globally (AI est.)
Precise, localized information transmission is essential during disasters. FDM-based multiplexed ID transmission enables rapid and accurate evacuation instructions and situation sharing.
Emergency communication system developers Public safety network providers Government contractors for disaster management
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects the core technology for multiplexed identification information transmission within FDM broadcasting systems, covering a broad scope across 8 claims. It was granted after successfully overcoming rigorous examiner objections and clarifying its scope through amendments, establishing a robust legal foundation.

Competitive White Space

This patent primarily covers ID multiplexing within FDM subcarriers. White space exists in advanced data encryption for broadcast content or integration with non-FDM wireless communication protocols for hybrid systems.

Economic Impact
~$0.5M/year estimated operational cost reduction potential per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming an annual FDM broadcast system operation cost of ~$1.5M (AI est.), this technology's automated, high-efficiency identification information transmission could reduce operational monitoring by ~20%, saving ~$0.3M (AI est.). Additionally, a ~10% reduction in trouble response costs due to improved reliability (~$80K AI est.) and ~$100K (AI est.) from new value-added services combine for an estimated total economic impact of ~$0.5M per year.

Speed to Market
6× faster than in-house development
This technology applies established FDM modulation, with foundational algorithms already proven, significantly shortening development time compared to new R&D. The patent's successful examination, overcoming initial objections, indicates specific technical challenges were addressed and practical solutions are detailed. This allows licensees to focus on integration and validation with existing FDM infrastructure, potentially reducing market entry by ~2.5 years.
Competitive Positioning

X: Frequency Band Utilization Efficiency
Y: System Operational Flexibility

Business Models & Applications
📝 Technology Licensing Model
Licensing this technology enables broadcasters and telecom infrastructure companies to achieve efficient identification information transmission by adding functionality to existing systems, accelerating new service development.
⚙️ High-Function Solution Provision
This service model offers broadcast and communication solutions centered on multiplexed ID transmission, optimizing relay station network operations and enhancing localized information delivery.
🤝 Joint Development & Collaboration Model
Provide this technology for joint development in disaster information transmission systems or smart city infrastructure projects, creating new value together. Revenue sharing based on outcomes could be considered.
Adjacent Application Opportunities
🌐 IoTデバイス管理
Centralized Management for Large-Scale IoT
This technology could utilize FDM to broadcast and receive identification information to widely dispersed IoT devices, streamlining individual device configuration and firmware updates. This has the potential to significantly reduce management costs for large-scale IoT networks by up to 25%.
🚗 自動運転通信インフラ
Enhanced Connectivity for Next-Gen Mobility
Roadside relay stations could multiplex and transmit identification information to vehicles, strengthening integration with surrounding infrastructure. This could support high-precision localization for autonomous vehicles and optimize traffic flow, potentially reducing accidents by 15% and alleviating congestion.
⚡ スマートグリッド制御
Efficient Operations for Power Grids
Multiplexing and transmitting identification information to various nodes (power plants, substations, smart meters) across a wide power grid could enable real-time supply-demand balancing and rapid fault identification. This has the potential to improve smart grid operational efficiency by 20-30%.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Requirements & POC
Duration: 3 months
Define the technology's scope, design interfaces with existing systems, and verify technical compatibility through a Proof of Concept (POC).
Phase 2: Prototype & Pilot
Duration: 6 months
Pilot deploy the developed prototype to selected relay stations and transmitters, evaluating the stability, efficiency of ID transmission, and overall system performance.
Phase 3: Deployment & Optimization
Duration: 9 months
Optimize the system based on pilot results, proceeding with full-scale national rollout or wide-area network integration. Implement continuous improvements based on operational data.
Technical Feasibility
This technology, focused on multiplexed ID transmission for FDM modulation, offers high compatibility with existing FDM-enabled transmitters and relay stations. Implementation primarily involves software updates or minor module additions. The mechanism of multiplexing IDs onto specific subcarriers avoids extensive hardware modifications and minimizes impact on existing frequency plans. Its applicability to "broadcast systems transmitting broadcast signals using FDM modulation" (Claim 1) provides a clear implementation path, indicating low technical hurdles.
Success Scenario
Implementing this technology could automate and enhance the efficiency of relay station ID transmission in broadcast systems, potentially reducing operational team monitoring efforts by 25%. This would enable resource reallocation towards more advanced content delivery or emergency information services, facilitating a transition to competitive next-generation broadcast infrastructure. This could lead to new customer experience value and expanded revenue opportunities.
Patent Record
APPLICATION NO.
特願2021-163889
REGISTRATION NO.
7723565
FILING DATE
2021年10月05日
GRANT DATE
2025年08月05日
EXPIRATION DATE
2041年10月05日
PATENT HOLDER
日本放送協会
Examination History
2024年09月05日
出願審査請求書
2025年05月13日
拒絶理由通知書
2025年06月16日
意見書
2025年06月16日
手続補正書（自発・内容）
2025年07月08日
特許査定