{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852724","patent":{"patent_number":"US-9852724","title":"Audio device, sound processing method, sound processing program, sound output method, and sound output program","assignee":null,"inventors":[],"filing_date":"2015-02-03T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04M","H04N"],"num_claims":8,"abstract":"There is provided an audio device including a control section configured to cause an audio signal to be output, the audio signal including a sound signal obtained through playback of content and a sound signal received from a communication partner device, and a sound processing section configured to generate an elimination signal obtained by eliminating a given sound signal from a microphone detection signal, which is the audio signal that is propagated and detected by a microphone. The control section causes the communication partner device to transmit the elimination signal."},"analysis":{"summary":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent introduces an innovative system for enhancing audio communication by intelligently managing and processing sound signals, particularly focusing on eliminating self-generated noise. The core innovation lies in its ability to output a unified audio signal, combining content playback with a communication partner's sound, while simultaneously purifying the outgoing microphone signal.\n\nThe primary problem this invention solves is the pervasive issue of cluttered audio in real-time communication. This includes background noise, echoes, and crucially, the interference caused by a user's own device playing content (e.g., music, video audio) that is then picked up by their microphone and transmitted to the communication partner. Existing solutions often fall short in robustly distinguishing desired speech from these various forms of interference without degrading voice quality.\n\nThe key technical approach involves a sophisticated 'control section' and a 'sound processing section'. The control section manages the mixing of local content audio and incoming communication audio for the user's output. The sound processing section is configured to analyze the microphone's input, identify specific 'given sound signals' (like the audio from local content playback), and generate an 'elimination signal' by precisely subtracting these unwanted sounds. This results in a clean, purified microphone signal. Crucially, the control section then facilitates the transmission of this refined elimination signal to the communication partner, ensuring that the remote party receives exceptionally clear audio, free from the sender's local distractions.\n\nThe business value and applications of this technology are substantial. It offers a significant competitive advantage for manufacturers of audio devices, communication platforms, and smart gadgets by delivering superior sound quality. This translates to more productive remote work environments, enhanced user experiences in gaming and entertainment, and more reliable voice-activated interfaces. Any industry reliant on clear, real-time audio stands to benefit from this innovation.\n\nFrom a market opportunity perspective, the demand for high-fidelity, noise-free communication is growing exponentially with the rise of virtual collaboration, streaming, and immersive digital experiences. This patent positions its implementers at the forefront of acoustic technology, enabling them to capture a larger share of markets for headsets, smart speakers, conferencing systems, and mobile devices by offering a truly differentiated and superior audio experience.","layman_explanation":"### What Problem Does This Solve?\n\nImagine you're in an important video conference, trying to explain a complex idea, but your colleague keeps hearing your background music or the TV playing in your home office. Or worse, they hear an echo of their own voice coming back from your side. This common scenario highlights a fundamental problem in digital communication: how to achieve crystal-clear audio when there's so much ambient noise and 'self-generated' sound (audio coming from your own device) interfering with your microphone. Existing solutions often employ basic noise cancellation, which can sometimes cut out parts of your speech, or simple echo cancellation that isn't robust enough for complex environments. The core issue is the inability of current systems to intelligently distinguish and isolate the *desired* voice signal from *undesired* local sounds, particularly those originating from the user's own output devices.\n\n### How Does It Work?\n\nThe Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent introduces a clever, two-pronged approach. Think of your audio device (like a headset or a smart speaker) as having a 'traffic controller' and a 'sound purifier'.\n\nFirst, the 'traffic controller' (the control section) ensures that for *your* listening experience, you hear everything seamlessly: both the content you're playing (like a YouTube video) and the voice of your communication partner. It blends these together nicely for you.\n\nSecond, and this is where the real innovation lies, the 'sound purifier' (the sound processing section) gets to work. When your microphone picks up sound, it captures everything – your voice, the dog barking, and crucially, the sound from that YouTube video you're watching. The 'sound purifier' is smart enough to know *exactly* what sounds are coming from your own device. It then performs a precise 'subtraction' operation, effectively removing those specific self-generated sounds from the microphone's input. It creates what the patent calls an 'elimination signal' – essentially, your voice, stripped clean of any interference from your own device.\n\nFinally, the 'traffic controller' takes this pristine 'elimination signal' and sends it to your communication partner. So, they receive a version of your voice that's free from your background music, your video's audio, or any echoes caused by your own speakers. It's like sending them a perfectly clean audio channel, dedicated just to your voice.\n\n### Why Does This Matter?\n\nThis technology matters immensely because it directly impacts the quality and efficiency of virtually all modern digital interactions. For businesses, it means more productive virtual meetings, fewer misunderstandings, and a more professional image for remote teams. The reduction in audio fatigue alone can significantly boost employee satisfaction and output. For consumers, it translates to richer, more immersive gaming experiences, clearer calls with loved ones, and more reliable interactions with voice assistants in smart homes.\n\nFrom a market perspective, companies that integrate this innovation into their products – be it headsets, smart speakers, video conferencing systems, or even mobile phones – will gain a significant competitive advantage. They can offer a premium audio experience that currently isn't widely available, justifying higher price points and capturing greater market share. This patent provides a foundation for the next generation of audio devices that truly prioritize human communication clarity, driving higher customer loyalty and brand reputation.\n\n### What's Next?\n\nThe principles outlined in this patent lay the groundwork for a future where audio communication is effortlessly clear, regardless of the environment. We can expect to see this technology integrated into mainstream devices, making truly immersive and distraction-free virtual environments a reality. Beyond communication, the precise sound elimination capabilities could enhance augmented reality audio, improve the accuracy of voice biometrics, and even enable more sophisticated real-time language translation. As the demand for seamless digital interaction grows, this innovation will become increasingly vital, driving rapid adoption and setting new industry standards for acoustic performance.","technical_analysis":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent describes a novel architecture for real-time audio processing, primarily focused on enhancing communication clarity by intelligently managing and suppressing unwanted sound signals. The system is designed to operate within an audio device, which could range from a headset or smartphone to a dedicated conferencing unit.\n\n**Technical Architecture:**\nAt its core, the invention comprises two main functional blocks: a `control section` and a `sound processing section`. These sections interact to manage both local audio output and remote audio transmission.\n\n1.  **Control Section:** This acts as the central orchestrator. Its primary function for local output is to mix an `audio signal` derived from `content playback` (e.g., music, video sound) with an `audio signal` received from a `communication partner device`. This combined signal is then routed to the local speaker or output transducer, providing a unified audio experience to the user. For remote transmission, the control section is responsible for receiving a processed signal (the `elimination signal`) from the `sound processing section` and causing its transmission to the `communication partner device`.\n\n2.  **Sound Processing Section:** This is the intelligent filtering unit. It receives a `microphone detection signal`, which is the raw audio input captured by the local microphone. This signal inherently contains the user's voice, ambient noise, and crucially, any sound that has propagated from the local device's output (i.e., the content playback audio that the user is also hearing). The sound processing section's core task is to generate an `elimination signal`. This is achieved by identifying and 'eliminating' a `given sound signal` from the `microphone detection signal`. The `given sound signal` is explicitly the audio originating from the local content playback.\n\n**Algorithm Specifics and Implementation Details:**\nThe generation of the `elimination signal` is the most technically intricate part. This likely involves advanced Digital Signal Processing (DSP) techniques, potentially including:\n\n*   **Adaptive Filtering:** To effectively subtract the `given sound signal` (local content audio) from the `microphone detection signal`, the system would need to use an adaptive filter. This filter would continuously estimate the transfer function from the local speaker output to the microphone input. Algorithms like the Normalized Least Mean Squares (NLMS) or Recursive Least Squares (RLS) could be employed to adapt filter coefficients in real-time, minimizing the error signal (which would be the user's voice plus residual noise).\n*   **Reference Signal Generation:** For accurate subtraction, the sound processing section needs a clean, synchronized reference signal of the local content playback audio. This reference signal would be fed into the adaptive filter alongside the microphone input.\n*   **Voice Activity Detection (VAD) / Non-linear Processing:** To prevent speech distortion, especially during double-talk scenarios (when both the local user and the remote partner are speaking, or when the local user is speaking over local content), the system might incorporate VAD and non-linear processing. This ensures that the adaptive filter primarily targets the echo/noise component during speech activity, rather than aggressively removing parts of the desired speech.\n*   **Noise Reduction:** While the primary focus is on eliminating self-generated content audio, the `elimination signal` could also be further processed by traditional noise reduction algorithms (e.g., spectral subtraction, Wiener filtering) to remove general ambient background noise before transmission.\n\n**Integration Patterns:**\nThis system can be integrated into various audio device architectures. For example:\n\n*   **Headsets:** The control and sound processing sections could be implemented in a dedicated DSP chip within the headset, communicating with the host device (smartphone, PC) for content audio and communication streams.\n*   **Smart Speakers/Conferencing Devices:** These devices would integrate the processing directly into their main SoC, leveraging powerful DSP cores.\n*   **Software-defined Audio:** The logic for the control and sound processing sections could also be implemented as a software layer within an operating system or communication application, utilizing the host device's CPU/GPU for computation.\n\n**Performance Characteristics:**\nKey performance metrics would include:\n\n*   **Echo Return Loss Enhancement (ERLE):** The degree to which the local content audio is attenuated in the transmitted signal.\n*   **Speech Quality (MOS Score):** Maintaining high perceived speech quality after processing.\n*   **Latency:** Minimizing processing delay to ensure natural, real-time communication.\n*   **Computational Efficiency:** The ability to perform complex DSP operations with low power consumption and minimal CPU load, crucial for battery-powered devices.\n\nThe Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program represents a significant advancement in acoustic echo and noise cancellation, moving towards more intelligent, context-aware audio processing that precisely targets self-generated interference, paving the way for truly clear and immersive digital communication.","business_analysis":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent addresses a critical pain point in modern communication: the pervasive issue of cluttered audio due to background noise, echoes, and crucially, the interference from a user's own device playing content. This patent opens up substantial market opportunities and offers significant competitive advantages for businesses operating in various sectors.\n\n**Market Opportunity Size:**\nThe global market for audio devices (headsets, smart speakers, microphones), communication platforms (video conferencing, VoIP), and related software is valued in the hundreds of billions and continues to grow rapidly. As remote work, online gaming, and digital content consumption become ubiquitous, the demand for superior audio quality intensifies. This patent targets a fundamental improvement across all these segments, suggesting a multi-billion dollar market for its application. Companies integrating this technology can tap into a premium segment willing to pay for truly clear communication experiences.\n\n**Competitive Advantages:**\nImplementing the principles of this patent provides a distinct competitive edge:\n\n*   **Superior User Experience:** Products featuring this technology will offer unparalleled clarity, distinguishing them from competitors that rely on less sophisticated noise and echo cancellation. This leads to higher customer satisfaction and brand loyalty.\n*   **Differentiation:** In crowded markets like headsets or communication software, enhanced audio quality, particularly the intelligent elimination of self-generated noise, serves as a powerful differentiator.\n*   **Reduced Communication Fatigue:** By minimizing distractions and improving intelligibility, the technology can significantly reduce the cognitive load on users, leading to more productive and less fatiguing communication sessions, especially in professional contexts.\n*   **Enabler for New Use Cases:** Pristine audio enables more reliable voice assistants, immersive AR/VR communication, and highly accurate speech-to-text applications, opening doors to new product categories and services.\n\n**Revenue Potential:**\nRevenue can be generated through:\n\n*   **Licensing:** Patent holders can license the technology to hardware manufacturers (e.g., Apple, Samsung, Sony, Logitech) and software developers (e.g., Zoom, Microsoft Teams, Google Meet).\n*   **Product Integration:** Companies owning or licensing the patent can integrate it directly into their own audio devices (e.g., premium headsets, smart displays, conferencing systems) to command higher prices and market share.\n*   **Service Enhancement:** Communication service providers can offer 'premium audio' tiers powered by this technology, attracting business and enterprise clients.\n\n**Business Models:**\n\n*   **B2B Licensing:** Offering technology licenses to device manufacturers and software companies.\n*   **B2C Premium Products:** Developing and selling consumer-facing devices with integrated, superior audio processing.\n*   **SaaS/PaaS Integration:** Providing SDKs or APIs for developers to integrate the sound processing capabilities into their applications on a subscription or usage-based model.\n\n**Strategic Positioning:**\nThis patent allows businesses to strategically position themselves as leaders in advanced acoustic technology and intelligent audio solutions. It moves beyond basic noise cancellation to offer context-aware sound management, which is crucial for the next generation of interconnected devices and human-computer interfaces. Companies leveraging this innovation can align with trends in remote work enablement, immersive computing, and high-fidelity digital interaction.\n\n**ROI Projections:**\nInvestment in developing and integrating this technology promises high ROI due to:\n\n*   **Increased Market Share:** Capturing a premium segment and expanding reach due to superior product performance.\n*   **Brand Value Enhancement:** Being perceived as an innovator in audio technology.\n*   **Reduced Support Costs:** Fewer complaints related to audio quality issues.\n*   **New Revenue Streams:** Through licensing or new product categories.\n\nThe Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program is not merely a technical improvement; it's a strategic asset that can drive significant business growth and reshape competitive landscapes in the audio and communication industries.","faqs":[{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program (US-9852724) is a patent for an innovative audio system designed to significantly enhance communication clarity. It describes an audio device that intelligently processes sound signals to eliminate unwanted interference, particularly focusing on 'self-generated noise'—sounds originating from the user's own device (like music or video audio) that might otherwise be picked up by the microphone and transmitted to a communication partner. Essentially, it ensures that when you speak, your voice is sent out crystal clear, free from your local distractions. This technology is a leap forward in acoustic management, offering a sophisticated approach to managing mixed audio streams for both local output and remote transmission. It aims to create a seamless and distraction-free audio experience for all parties involved in a digital conversation. The patent outlines the architecture and methods for achieving this advanced level of sound purification.","question":"What is Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program operates through a clever interplay of its control and sound processing sections. First, for the local user, the control section combines the audio from any content being played on the device (e.g., music, video) with the incoming audio from a communication partner, ensuring a complete listening experience. Simultaneously, the sound processing section takes the raw input from the microphone, which contains the user's voice, ambient noise, and crucially, the sounds from the local content playback. Using advanced digital signal processing, this section precisely identifies the 'given sound signal' (the local content audio) and creates an 'elimination signal' by subtracting these specific unwanted sounds from the microphone input. This leaves a purified version of the user's voice. Finally, the control section transmits this clean 'elimination signal' to the communication partner, ensuring they receive clear audio free from the sender's local interference. This intelligent, source-aware elimination is key to its effectiveness. Keywords: sound processing, elimination signal, microphone detection, control section, digital signal processing, audio clarity.","question":"How does Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program work?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent primarily solves the pervasive problem of cluttered and unclear audio in real-time digital communication. This encompasses several related issues: 1) **Background Noise:** General ambient sounds that make speech difficult to understand. 2) **Acoustic Echo:** Where a remote participant's voice, played through local speakers, is re-captured by the local microphone and sent back, creating an echo. 3) **Self-Generated Content Interference:** This is a particularly challenging aspect where a user's own device is playing media (like music or a video), and this audio is picked up by their microphone and transmitted, creating significant distraction for the communication partner. Prior art solutions often struggle with these complex scenarios, leading to reduced productivity in virtual meetings, frustrating gaming experiences, and unreliable interactions with voice-activated systems. This innovation offers a comprehensive solution by intelligently targeting and removing these specific forms of interference. Keywords: communication problem, noise cancellation, echo cancellation, self-noise, audio interference, speech intelligibility.","question":"What problem does Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program solve?"},{"answer":"The inventors of the Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program (US-9852724) are not specified in the provided patent data. The 'Inventors' field is blank. Similarly, the 'Assignee' field, which would typically indicate the company or entity to whom the patent rights are assigned, is also blank in the provided abstract. This information is usually detailed in the full patent document. For comprehensive details regarding the inventors and assignee, one would need to consult the complete patent filing on an official patent database. Keywords: patent inventors, patent assignee, US-9852724, audio device patent.","question":"Who invented Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program offers several significant benefits that can transform digital communication. Firstly, it provides **unparalleled audio clarity**, ensuring that the user's voice is transmitted without interference from background noise, echoes, or crucially, their own device's content playback. Secondly, it leads to a **superior user experience**, reducing communication fatigue in professional settings and enhancing immersion in entertainment. Users no longer have to worry about their background sounds or content disrupting conversations. Thirdly, it offers a **competitive advantage** for device manufacturers and communication platforms, allowing them to differentiate their products with advanced acoustic performance. Finally, this technology is a **foundational enabler** for future innovations, paving the way for more reliable voice assistants, immersive AR/VR audio, and highly accurate speech-to-text applications. Keywords: audio benefits, communication clarity, user experience, competitive advantage, innovation enabler, Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program.","question":"What are the key benefits of Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program distinguishes itself from prior art through its intelligent and targeted approach to sound processing. Traditional noise reduction methods often employ generic filters or noise gates that can sometimes distort speech or fail to adapt to dynamic environments. Standard acoustic echo cancellation (AEC) primarily focuses on removing remote echoes. In contrast, this patent's unique advantage lies in its ability to precisely identify and subtract the 'given sound signal' – specifically, the audio originating from the *local device's own content playback* – from the microphone input. This context-aware elimination is far more precise than general noise reduction, ensuring that known self-generated interference is removed without compromising the desired voice signal. It moves beyond simply reducing noise to intelligently purifying the outgoing audio stream. Keywords: patent differentiation, prior art comparison, intelligent sound processing, self-noise elimination, advanced noise cancellation, Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program.","question":"How is Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program different from prior art?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent has the potential to significantly impact a wide array of industries reliant on high-quality audio communication. **Unified Communications and Collaboration Platforms** (e.g., Zoom, Microsoft Teams) will see improved meeting productivity and user satisfaction. **Consumer Electronics** manufacturers (e.g., headphones, smartphones, smart speakers, laptops) can differentiate their products with superior audio performance. The **Gaming Industry** will benefit from clearer in-game voice chat. **Automotive** applications, such as in-car communication systems and voice assistants, will become more reliable. Furthermore, industries involving **Voice User Interfaces (VUIs)**, **Augmented/Virtual Reality (AR/VR)**, and **Speech-to-Text Transcription** will find this technology crucial for achieving accurate and immersive experiences. Any sector where clear human-to-human or human-to-machine voice interaction is critical stands to gain from this innovation. Keywords: industry impact, communication technology, consumer electronics, gaming industry, remote work, voice AI, Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program.","question":"What industries will Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program impact?"},{"answer":"The Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program (US-9852724) was filed on **2015-02-03**. It was subsequently published on **2017-12-26**. The filing date marks when the patent application was submitted to the patent office, initiating the examination process. The publication date signifies when the patent document became publicly available, regardless of whether it had been granted yet. These dates are crucial for understanding the patent's timeline and its position within the broader landscape of technological development. Keywords: patent filing date, patent publication date, US-9852724, patent timeline.","question":"When was Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program filed/granted?"},{"answer":"The commercial applications of the Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program are extensive and varied. It can be integrated into **headsets and headphones** for superior call and gaming audio. **Smartphones and tablets** can leverage this technology for clearer voice and video calls, even in noisy environments. **Video conferencing systems and software** can offer premium audio features, reducing distractions in virtual meetings. **Smart speakers and voice assistants** can achieve higher accuracy in understanding commands, even with background music. Additionally, it has applications in **automotive infotainment systems** for enhanced hands-free communication, **broadcasting and podcasting equipment** for cleaner audio capture, and potentially in **hearing aids** or **assistive listening devices** for improved sound clarity. The core capability of intelligently eliminating self-generated noise makes it valuable across any product or service where pristine audio output is a critical feature. Keywords: commercial applications, audio devices, communication platforms, smart speakers, gaming headsets, voice assistants, Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program.","question":"What are the commercial applications of Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program?"},{"answer":"Looking ahead, the Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent lays a strong foundation for several exciting future developments. We can anticipate deeper integration with **artificial intelligence and machine learning** to make the sound processing even more adaptive and intelligent, capable of handling highly complex and non-stationary noise environments. This could lead to personalized acoustic profiles. The technology could also be extended to create **'acoustic bubbles'** for individual users in shared physical spaces, enabling multiple clear conversations simultaneously without interference. Furthermore, its principles are crucial for advancing **augmented reality (AR) and virtual reality (VR) audio**, allowing for seamless blending of digital and physical soundscapes without unwanted echoes or noise. As voice interfaces become more sophisticated, this innovation will contribute to **more accurate voice biometrics and real-time language translation**. Ultimately, the future impact of this patent points towards an era of effortlessly clear, context-aware, and highly immersive digital audio interactions across all connected devices. Keywords: future audio tech, AI in sound processing, augmented reality audio, acoustic bubbles, voice biometrics, immersive audio, Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program.","question":"What are the future developments expected for Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program?"}],"topics":["audio device patent","sound processing method","sound processing program","sound output method","sound output program","relentless","pursuit","pristine"],"tech_cluster":null},"seo":{"title":"Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program - Patent US-9852724","description":"Discover the Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, and Sound Output Program patent for intelligent noise and echo cancellation. Achieve crystal-clear communication by eliminating self-generated audio interference. Full technical analysis and business impact.","keywords":["audio device patent","sound processing method","sound processing program","sound output method","sound output program","noise cancellation","echo cancellation","digital signal processing","communication clarity","acoustic management","patent US-9852724","audio innovation","self-noise elimination","virtual meetings","remote work audio"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852724","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9852724","citation_suggestion":"Patentable. \"Audio device, sound processing method, sound processing program, sound output method, and sound output program\" (US-9852724). https://patentable.app/patents/US-9852724","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852724","json":"https://patentable.app/api/llm-context/US-9852724","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:32:02.438Z"}