Market Context — Why This Technology, Why Now

The accelerating shift to digital-first content consumption and the rollout of 5G networks are creating unprecedented pressure on spectrum efficiency and service delivery flexibility. Regulators and broadcasters worldwide seek innovative solutions to support immersive experiences and data-rich applications without costly infrastructure overhauls. This technology offers a strategic advantage by enabling higher data throughput and adaptive service quality within existing frequency allocations, crucial for staying competitive in a rapidly converging media and telecom landscape.

Key Competitive Advantages
01

Optimizes multiplexing of multiple services within a single transmission band by flexibly combining FDM and TDM, potentially improving frequency utilization efficiency by up to 30%.

02

Adapts multiplexing methods based on service characteristics (e.g., high-definition video, data broadcasting, interactive services), optimizing the quality of each service. This establishes a foundation for simultaneously delivering diverse content without compromising user experience.

03

This patent, registered after overcoming six prior art references and two office actions, demonstrates clear superiority over existing technologies. This ensures licensees can achieve differentiation and long-term technical advantage against competitors.

Market Opportunity
Broadcast Infrastructure Market
$3.5B–$3.5B globally (AI est.)
As high-definition content (4K/8K) proliferates, efficient bandwidth utilization and diverse service delivery become essential. This technology addresses these demands, maximizing the value of existing infrastructure.
Major broadcast network operators Digital TV equipment manufacturers Satellite communication providers
5G Communication & Media Delivery Market
$5.5B–$5.5B globally (AI est.)
With 5G expansion, expectations for high-speed, low-latency media content delivery are rising. As 5G broadcast discussions progress, this technology's multiplexing flexibility could play a crucial role.
Tier 1 mobile network operators Content delivery network (CDN) providers 5G equipment vendors
Private Network Market
$1.5B–$1.5B globally (AI est.)
In smart cities and industrial IoT, where security and high reliability are paramount, efficient data transmission over dedicated bands is required. This technology is adaptable for these specific-purpose communication needs.
Industrial IoT platform providers Smart city infrastructure developers Critical communications system integrators
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a multifaceted multiplexing technology for hierarchical transmission, covering both transmission and reception devices across 11 claims. Its registration, achieved after overcoming six prior art references and two office actions, demonstrates a robust and well-defined scope, providing strong defense against competitors and resilience to future invalidation challenges.

Competitive White Space

This patent primarily covers the adaptive multiplexing logic within transmission and reception devices. White space exists in advanced error correction coding, dynamic spectrum allocation algorithms, or specific hardware implementations for ultra-low latency applications.

Economic Impact
~$250K/year estimated profitability improvement per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Enabling additional services (e.g., 4K/8K broadcasting, data broadcasting, interactive services) within existing broadcast bands creates new revenue opportunities. For instance, improving current bandwidth utilization by 20% could generate ~$350K/year (AI est.) in additional service revenue, leading to an estimated ~$50K/year (AI est.) increase in annual profit. Furthermore, avoiding new spectrum acquisition costs and optimizing existing infrastructure could yield ~$200K/year (AI est.) in cost savings.

Speed to Market
5× faster than in-house development
This technology benefits from established fundamental multiplexing algorithms and hierarchical transmission concepts, with clearly defined configurations for transmission and reception devices in the claims. This eliminates the need for licensees to develop the technology from scratch. It can be integrated as a module into existing Software-Defined Radio (SDR) platforms or FPGA-based systems, enabling rapid productization. Given the widespread knowledge of FDM and TDM in digital modulation/demodulation, implementation risks are assessed as low.
Competitive Positioning

X: Frequency Utilization Efficiency
Y: Service Delivery Flexibility

Business Models & Applications
📺 Technology Licensing
A model for licensing transmission/reception modules and related software implementing this technology to broadcasters. It offers high value to operators seeking service diversification and efficient bandwidth utilization.
⚙️ Solution Provision
A model for providing consulting and solution development for next-generation broadcast and communication systems, leveraging this technology for specific broadcasters or telecom operators. It supports operational optimization and new service introduction.
💡 Device & Chipset Development
A model for developing high-efficiency, multi-functional communication devices and chipsets based on this technology, supplied to hardware manufacturers. Monetization is achieved through integration into smart TVs and IoT devices.
Adjacent Application Opportunities
📶 5G & Mobile Communication
5G Network Slicing Optimization
Leveraging this technology's flexible multiplexing capabilities, it could integrate with 5G network slicing to create virtual networks optimized for specific applications. For instance, it could efficiently deliver ultra-reliable low-latency communication for autonomous vehicles and high-bandwidth entertainment services over the same physical infrastructure, potentially improving network efficiency by 20-30%.
🌐 IoT & Smart Cities
Efficient IoT Data Transmission
This technology could be adapted to multiplex diverse IoT data from numerous sensors across different hierarchical layers based on criticality and real-time needs. This could significantly enhance data collection reliability and efficiency in smart cities and smart factories, potentially reducing bandwidth consumption by 15-25% for non-critical data.
🚨 Disaster & Crisis Management
Robust Emergency Information Transmission
It could serve as a foundation for reliably transmitting diverse emergency information (video, audio, text) and safety confirmation data even in congested communication environments. Hierarchical transmission could ensure critical information delivery while maintaining regular communications, potentially increasing data throughput for essential services by 50% during crises.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Technology Evaluation & Requirements Definition
Duration: 3 months
Evaluate the basic transmission protocol and multiplexing algorithms, verifying compatibility with existing licensee systems. Define performance targets and requirements, then proceed with a Proof of Concept (PoC).
Phase 2: Prototype Development & Validation
Duration: 6 months
Based on PoC results, develop necessary components for implementation into transmission and reception devices. Build a prototype and validate multiplexing efficiency, service quality, and stability in a near-real-world environment.
Phase 3: System Deployment & Optimization
Duration: 9 months
Based on the validated prototype, proceed with full integration and deployment into the licensee's products or services. This includes integrating with existing infrastructure, establishing operational workflows, and conducting final system optimization.
Technical Feasibility
This technology integrates FDM and TDM into the multiplexing units of transmission and reception devices, enabling the multiplexing of multiple hierarchical signals within a single channel. It is primarily envisioned for implementation using Software-Defined Radio (SDR) technology or FPGAs, offering high compatibility for integration into existing digital broadcasting equipment via firmware updates or module replacement.
Success Scenario
Implementing this technology could enable broadcasters to maximize existing frequency bands, simultaneously deploying 4K/8K high-definition broadcasts and interactive data services. This is expected to enhance viewer satisfaction and secure new revenue streams through diverse content offerings. Furthermore, it could facilitate more robust and information-rich transmission during emergency broadcasts, such as disaster alerts.
Patent Record
APPLICATION NO.
特願2021-088800
REGISTRATION NO.
7717494
FILING DATE
2021年05月26日
GRANT DATE
2025年07月25日
EXPIRATION DATE
2041年05月26日
PATENT HOLDER
日本放送協会
Examination History
2024年04月30日
出願審査請求書
2024年12月17日
拒絶理由通知書
2025年02月17日
手続補正書（自発・内容）
2025年02月17日
意見書
2025年05月20日
拒絶理由通知書
2025年06月13日
手続補正書（自発・内容）
2025年06月13日
意見書
2025年07月01日
特許査定