Market Context — Why This Technology, Why Now

The global broadcast industry faces increasing pressure to deliver uninterrupted, high-quality content while optimizing network efficiency. The proliferation of SFNs, though beneficial for spectrum, introduces complexities in network management and fault resolution. Furthermore, regulatory bodies worldwide emphasize the need for robust emergency broadcast systems capable of precise information dissemination. This technology provides a critical tool for operators to meet these demands, ensuring service continuity and compliance, while gaining a competitive edge through enhanced operational intelligence.

Key Competitive Advantages
01

Ensures zero impact on signal quality by embedding TxID signals into the One-Seg broadcast segment, preserving existing high-quality broadcast services.

02

Achieves high-precision identification in complex Single Frequency Network (SFN) environments, significantly improving operational efficiency and rapid fault isolation.

03

Optimizes TxID signal design based on ISDB-T physical layer parameters (OFDM symbol length, GI length, SP insertion ratio), demonstrating strong technical uniqueness with only 5 prior art references.

Market Opportunity
Digital Broadcast Infrastructure
$2.5B–$5B globally (AI est.)
The expanding adoption of Single Frequency Networks (SFN) and increasing demand for improved broadcast quality and operational efficiency drive continuous investment in advanced infrastructure. This technology is expected to see rising demand as operators upgrade existing systems.
Major broadcast network operators Digital TV transmission equipment manufacturers Telecommunications infrastructure providers
Emergency Broadcast Systems
$500M–$1B globally (AI est.)
In regions prone to natural disasters, accurate and rapid emergency information dissemination is paramount. This technology's high-precision station identification significantly enhances the reliability of emergency broadcasts, contributing to greater societal resilience.
Government emergency services contractors Public safety communication system integrators Disaster management technology providers
Location-Based Services
$250M–$500M globally (AI est.)
There is growing demand for high-precision location-based services and localized content delivery utilizing broadcast signals. This technology, by improving identification accuracy from broadcast stations, has the potential to underpin the creation of innovative new services.
Location-based service developers Digital advertising and content platforms Smart city solution providers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a robust system for transmitting, relaying, and receiving broadcast station ID signals within SFN environments without affecting ISDB-T demodulation. It specifically covers the optimized design of TxID signals based on ISDB-T physical layer parameters, ensuring broad and stable claim coverage for enhanced network identification.

Competitive White Space

This patent primarily covers TxID signal embedding for ISDB-T in SFN environments. White space exists in applying similar identification principles to other digital broadcast standards (e.g., DVB-T, ATSC), or integrating TxID data with advanced network analytics and AI-driven predictive maintenance systems.

Economic Impact
~$200K/year estimated operational cost reduction per large network (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Troubleshooting and maintenance in large SFN broadcast networks incur significant labor. For a 500-station network experiencing 100 SFN-related incidents annually, assuming 10 person-days of investigation at ~$330/person-day (AI est.) and ~$6.5K (AI est.) in lost opportunity per incident: Current annual cost is (100 incidents × 10 person-days × ~$330/person-day) + (100 incidents × ~$6.5K) = ~$1M (AI est.). Implementing this technology could reduce investigation effort and opportunity loss by 20%, resulting in an estimated annual operational cost reduction of ~$200K (AI est.).

Speed to Market
4× faster than in-house development
This technology establishes a patented algorithm and optimized parameters for embedding TxID signals into ISDB-T modulated signals. This significantly reduces the time and cost required for licensees to develop similar technology from scratch, avoiding extensive signal design, interference evaluation, and standardization efforts. With proven theoretical foundations and a complete technical framework, it could accelerate market entry by approximately 3 years, securing a competitive advantage.
Competitive Positioning

X: SFN Identification Accuracy
Y: Ease of System Integration

Business Models & Applications
🤝 Technology Licensing
License the TxID signal generation/detection algorithms and related technologies to broadcast operators and equipment manufacturers, facilitating integration into existing systems. Royalty income would be the primary revenue stream.
📦 Software Module Sales
Offer software modules for transmitting devices (TxID signal generation/embedding) and receiving devices (detection/identification). These modules would be provided as easy-to-integrate add-ons for existing equipment.
📊 SFN Operations Management Solution
Provide an SFN monitoring and operations management solution centered on this technology. Utilize broadcast station identification data for network status visualization, automated trouble detection/identification, and rapid recovery support services.
Adjacent Application Opportunities
📡 IoT Device Management
Source Identification for Large-Scale IoT Networks
This technology, which identifies specific transmission sources in SFN-like environments, could be applied to communication management between devices and gateways in large-scale IoT networks. It could precisely identify the access point for data collection from numerous factory sensors, aiding in fault diagnosis and enhancing security for critical industrial operations.
🚗 Autonomous Driving & V2X Communication
Reliable Information Source Identification for V2X
In autonomous driving, V2X communication involves vehicles receiving synchronized signals from multiple roadside units or other vehicles, creating an SFN-like environment. Applying this technology could accurately identify signal origins, supporting safer driving decisions based on highly reliable information. This is especially critical for precision applications like emergency vehicle priority control.
🏭 Smart Factory & Industrial Wireless
Optimizing Industrial Wireless Network Monitoring
Within smart factory industrial wireless networks, where numerous sensors and actuators operate in close proximity, this technology could accurately identify signals from specific equipment. This enhances the precision of location tracking and condition monitoring, potentially contributing to production line efficiency, advanced predictive maintenance, and reducing downtime by up to 20%.
Integration Roadmap — Estimated 18-Month Deployment
Phase 1: Technical Evaluation & Requirements Definition
Duration: 3 months
Conduct a detailed technical evaluation of the TxID signal generation and detection modules and analyze their compatibility with the licensee's existing ISDB-T systems. Define SFN identification requirements, scope of implementation, and target performance.
Phase 2: Prototype Development & Validation
Duration: 6 months
Develop transmitting and receiving prototypes for TxID signal generation/embedding and detection/identification, based on defined requirements. Verify performance and stability through demonstration tests in lab environments and limited SFN conditions.
Phase 3: System Integration & Full Deployment
Duration: 9 months
Integrate validated prototypes into existing broadcast facilities and conduct operational testing. After final on-site adjustments, proceed with phased full deployment. Consider continuous performance optimization and feature expansion based on operational data.
Technical Feasibility
This technology, which embeds TxID signals into the One-Seg broadcast segment of ISDB-T modulated signals, is estimated to be implementable in existing ISDB-T transmission and reception equipment primarily through software updates or the addition of specific modules. The main effort involves implementing signal processing algorithms based on the claimed OFDM symbol length, GI length, and SP insertion ratio, thus avoiding extensive hardware modifications and ensuring high compatibility with current infrastructure.
Success Scenario
Upon adoption, this technology could improve broadcast station identification accuracy in complex SFN environments to over 95%. This may reduce the time required to pinpoint the cause of signal interference by one-third compared to conventional methods, enabling faster recovery. Furthermore, it is estimated to significantly enhance the reliability of accurate information dissemination during disasters, boosting public trust.
Patent Record
APPLICATION NO.
特願2020-162746
REGISTRATION NO.
7598214
FILING DATE
2020/09/28
GRANT DATE
2024/12/03
EXPIRATION DATE
2040/09/28
PATENT HOLDER
日本放送協会
Examination History
2023年08月28日
出願審査請求書
2024年09月03日
拒絶理由通知書
2024年10月02日
意見書
2024年10月02日
手続補正書（自発・内容）
2024年11月05日
特許査定