Market Context — Why This Technology, Why Now

The global broadcasting industry is undergoing a significant transformation, driven by consumer demand for ultra-high-definition content and a proliferation of streaming services. This necessitates robust, future-proof infrastructure that can support increased bandwidth and diverse signal types. Simultaneously, the push for smart cities and connected homes is creating pressure to leverage existing building infrastructure for more than just traditional media, seeking cost-effective solutions for integrated data transmission. This technology directly addresses these trends by offering a pragmatic upgrade path for legacy coaxial networks, enabling broadcasters and property managers to deliver advanced services without prohibitive capital expenditure.

Key Competitive Advantages
01

Integrates multi-band broadcast transmission: Enables in-home transmission of 21GHz next-gen satellite, 12GHz satellite, and terrestrial digital broadcasts via a single coaxial cable.

02

Maximizes existing infrastructure utilization: Uses existing coaxial cables, significantly reducing extensive rewiring and capital investment.

03

Minimizes impact on in-home receivers: Allows new and existing services to coexist without affecting current terrestrial or 12GHz satellite receivers.

Market Opportunity
Multi-Unit Dwellings & Building Management
$1.5B globally (AI est.)
Optimizing infrastructure during new construction and renovations, meeting resident demand for high-definition and multi-channel content.
Residential property developers Commercial real estate management firms Building systems integrators
Broadcast Infrastructure Providers
$1B globally (AI est.)
Transition to 21GHz band broadcasting, driving demand for efficient upgrades of existing equipment.
Satellite broadcast operators Terrestrial broadcast network providers Cable TV infrastructure companies
Smart Home & IoT Systems
$0.5B globally (AI est.)
Leveraging existing wiring networks as a transmission backbone for diverse sensor data and IoT devices.
Smart home device manufacturers IoT platform developers Building automation solution providers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a broadcast reception system that integrates 21GHz, 12GHz, and terrestrial digital broadcast signals onto a single coaxial cable using specific frequency conversion, mixing, and hierarchical demultiplexing techniques. Its novelty and inventiveness were clearly recognized over four cited prior art documents, establishing a robust and stable scope of protection.

Competitive White Space

This patent primarily covers signal integration and transmission over coaxial cable. White space exists in developing advanced interactive services, secure data encryption for non-broadcast content, or novel return-path communication protocols over the same integrated infrastructure.

Economic Impact
~$250K/year estimated infrastructure upgrade cost reduction per annual upgrade program (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

For companies upgrading broadcast infrastructure in multi-unit dwellings or commercial facilities, new cable installation is estimated at ~$35K/building (AI est.). This technology could reduce these installation costs by approximately 80%. For example, with an annual plan to upgrade 10 buildings, the potential cost savings could reach ~$250K/year (AI est.). Additionally, reduced construction time could mitigate opportunity costs.

Speed to Market
4× faster than in-house development
This technology's core elements, including frequency conversion, signal mixing, and hierarchical demultiplexing for broadcast signals, are established under patent, indicating high technical feasibility. As the applicant is NHK (Japan Broadcasting Corporation), significant foundational research and validation are presumed to be complete. This allows adopting companies to achieve market entry approximately 3 years faster than in-house development, securing early competitive advantage and first-mover benefits.
Competitive Positioning

X: Existing Infrastructure Utilization Efficiency
Y: Next-Gen Service Adaptability

Business Models & Applications
🛠️ System Integration Services
Offers comprehensive design, implementation, and maintenance of broadcast reception systems incorporating this technology for multi-unit dwellings and commercial facilities.
📡 Equipment Development & Sales
Develops and sells devices such as frequency converters, mixers, and receivers equipped with this technology to manufacturers and installers.
🤝 Technology Licensing
Grants licenses for this technology to broadcast equipment manufacturers and telecommunication providers, promoting its deployment in diverse products and services.
Adjacent Application Opportunities
🏠 Smart Home & IoT
Integrated Multi-Data Transmission on Existing Wiring
Leverage existing coaxial cables not just for video and audio, but also for smart home sensor data and IoT device communication. Applying signal conversion technology could enable efficient multiplexed transmission of data from various protocols, potentially building advanced smart home systems without new wiring. This could support a smart home market valued at over $100B globally.
🏥 Healthcare Facilities
In-Facility Information Transmission System
Utilize existing coaxial cable networks within hospitals and care facilities to centrally transmit patient monitoring data, medical device information, and entertainment broadcasts. High-reliability signal separation and integration technology could enable secure and efficient distribution of medical information, contributing to enhanced facility operations. This could streamline data flow for hundreds of thousands of healthcare facilities worldwide.
Integration Roadmap — Estimated 21-Month Deployment
Technical Validation & System Design
Duration: 6 months
Defines specific implementation requirements for this technology, evaluates compatibility with existing systems, and conducts detailed design of frequency conversion and mixing units.
Prototype Development & Field Testing
Duration: 9 months
Develops prototype equipment based on the design, conducts small-scale field tests to evaluate performance, and identifies challenges.
Productization & Market Launch Preparation
Duration: 6 months
Refines product design based on test results, establishes mass production systems, and formulates marketing strategies for target markets.
Technical Feasibility
This patent explicitly details technical elements such as frequency conversion, mixing, and hierarchical demultiplexing for integrating 21GHz, 12GHz, and terrestrial digital broadcast signals onto existing coaxial cables. This indicates high technical feasibility for integrating equipment into existing broadcast reception systems and in-home wiring networks without requiring new coaxial cable installations. The technology largely applies general signal processing techniques, suggesting it can be implemented without extensive new development.
Success Scenario
Adopting this technology could enable multi-unit dwelling owners and building management companies to offer next-generation 21GHz band satellite broadcast services without costly new wiring. This may enhance property competitiveness and contribute to maintaining or increasing occupancy rates. It could also establish a robust infrastructure capable of flexibly adapting to future diversification of broadcast services while preserving existing viewing environments.
Patent Record
APPLICATION NO.
JP2021-198921
REGISTRATION NO.
7755471
FILING DATE
2021/12/07
GRANT DATE
2025/10/07
EXPIRATION DATE
2041/12/07
PATENT HOLDER
日本放送協会
Examination History
2024-11-07
Request for Examination
2025-09-09
Decision to Grant