Market Context — Why This Technology, Why Now

The global shift towards immersive digital realities, driven by advancements in XR, virtual reality, and interactive entertainment, places immense pressure on developers to deliver hyper-realistic sensory experiences. Audio quality, particularly the accurate rendering of moving sound sources, is paramount for user engagement and preventing motion sickness. This technology directly addresses this challenge, enabling content creators and platform providers to meet escalating consumer expectations for seamless, high-fidelity spatial audio.

Key Competitive Advantages
01

Eliminates Time Aliasing for Maximum Immersion: Completely eliminates unnatural sound distortions (time aliasing) that typically occur with conventional technologies during moving sound source playback, reproducing an exceptionally natural and realistic acoustic space.

02

Optimizes SDM Speaker Array Driving: Highly optimizes the generation of driving signals for Sound Diffusion Method (SDM) speaker arrays using a proprietary algorithm, efficiently reproducing complex sound fields.

03

Achieves High-Precision Sound Field Reproduction Across Wide Areas: Provides stable, high-quality acoustic experiences across wide areas, not limited to specific listening points, through precise control based on sophisticated calculation formulas.

Market Opportunity
🎮 XR/Metaverse
$150M–$250M globally (AI est.)
High-precision sound field reproduction is essential for realistic virtual experiences, serving as a key technology for enhancing immersion, thus driving market expansion.
XR platform developers Metaverse content creators Virtual reality hardware manufacturers
🎬 Immersive Entertainment
$200M–$300M globally (AI est.)
There is a strong and increasing demand to provide ultimate acoustic experiences for audiences in live viewing events, theme parks, and cinemas.
Live event production companies Theme park audio system integrators Cinema technology providers
🚗 In-Car Audio
$100M–$200M globally (AI est.)
With the advent of autonomous driving, in-car entertainment is gaining importance, leading to a rapid increase in demand for personalized, high-quality spatial audio within vehicles.
Automotive infotainment system suppliers Luxury vehicle manufacturers Car audio component developers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a sound field reproduction apparatus and program, clearly defining its scope across three claims. It demonstrated robustness by successfully overcoming a single office action with precise amendments and arguments, indicating clear differentiation from prior art and strong resistance to invalidation. The involvement of a reputable patent attorney further underscores the meticulousness of the claims and the stability of the granted rights.

Competitive White Space

This patent primarily focuses on signal processing for speaker arrays. White space could include novel speaker array hardware designs, integration with haptic feedback systems, or advanced AI-driven sound source separation techniques.

Economic Impact
~$1.5M/year estimated opportunity loss avoidance per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming an average user churn rate of 5% in the high-fidelity content market. For a content provider with annual sales of ~$333.5M (AI est.), adopting this technology is estimated to improve sales by 4%, resulting in an annual revenue increase of ~$1.33M (AI est.). Additionally, an estimated ~$0.33M (AI est.) in new customer acquisition from enhanced customer satisfaction is added, totaling an estimated ~$1.66M (AI est.) in annual opportunity loss avoidance.

Speed to Market
8× faster than in-house development
This technology possesses an established technical foundation, with its driving signal calculation algorithm, specifically designed for time alias removal, detailed in the patent specification. This eliminates the need for licensees to conduct R&D from scratch, significantly shortening the technical validation phase. While developing comparable advanced sound field reproduction technology in-house could take several years, adopting this patent could enable practical application within six months.
Competitive Positioning

X: Real-time Sound Field Reproduction
Y: Immersion Quality

Business Models & Applications
💻 Software Licensing Model
This model monetizes licensing fees by providing the technology's driving signal calculation algorithm as a software module for integration into a licensee's existing platforms.
💰 Royalty-Based Revenue Model
This model collects a fixed royalty based on sales generated from products or services incorporating this technology, anticipating revenue aligned with market success.
🤝 Joint Development & Customization Model
This model involves customizing the technology to meet specific licensee needs and jointly developing new products or services, with development fees and success-based compensation as revenue sources.
Adjacent Application Opportunities
🎮 Game & Entertainment
Next-Gen Game Engine Audio Core Technology
Integrating this technology into game engines enables real-time, time-alias-free sound field reproduction that accurately tracks character movement and environmental sound changes. Players could experience unprecedented immersion and realism, significantly enhancing the quality of their gaming experience by up to 30%.
🏠 Smart Home & IoT
Spatial Audio-Enabled Smart Speakers
Smart speakers equipped with this technology could automatically generate optimal sound fields tailored to user movement and room acoustics. This offers a premium audio experience from any position, transforming an entire living space into an immersive concert hall or cinema-like environment, potentially increasing user satisfaction by 25%.
🚗 Autonomous Driving & Mobility
Optimized In-Car Infotainment Audio
This technology could provide personalized, time-alias-free spatial audio for each occupant in autonomous vehicles, adapting to changes in seating position and posture. This is expected to significantly enhance the quality of in-car entertainment and business activities, such as movie watching or online meetings, by improving audio clarity by over 40%.
Integration Roadmap — Estimated 12-Month Deployment
Phase 1: Technical Validation & Requirements Definition
Duration: 2 months
Deepen understanding of the technology's driving signal calculation algorithm and assess its compatibility with the licensee's existing systems. Define requirements based on specific product and service application scenarios.
Phase 2: Prototype Development & Testing
Duration: 4 months
Develop a prototype incorporating this technology based on defined requirements. Validate time alias removal effects and sound field reproduction quality in real-world environments, optimizing performance and improving functionality.
Phase 3: System Implementation & Market Rollout
Duration: 6 months
Based on prototype validation results, proceed with system implementation into production environments and large-scale deployment. Complete final adjustments for market launch and establish an effective operational framework.
Technical Feasibility
This technology can be implemented by integrating the driving signal calculation algorithm, as described in the patent specification, into existing audio processing units or DSPs as software. Being a versatile computational logic independent of specific hardware, licensees can adopt it without significant capital investment, through software updates or module additions to their current acoustic systems. This results in low technical barriers and anticipates rapid implementation.
Success Scenario
Upon adopting this technology, licensees could completely eliminate unnatural sound distortions caused by moving sound sources in high-fidelity content and XR experiences. This could allow users to immerse themselves more deeply in content, potentially increasing experience satisfaction by an average of 20%. Consequently, this is expected to strengthen customer loyalty and provide a clear differentiator against competitors.
Patent Record
APPLICATION NO.
特願2021-019629
REGISTRATION NO.
7614872
FILING DATE
2021/02/10
GRANT DATE
2025/01/07
EXPIRATION DATE
2041/02/10
PATENT HOLDER
日本放送協会
Examination History
2024年01月04日
出願審査請求書
2024年10月03日
拒絶理由通知書
2024年10月29日
手続補正書(自発・内容)
2024年10月29日
意見書
2024年12月09日
特許査定