{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852670","patent":{"patent_number":"US-9852670","title":"System and method for wireless control of signs","assignee":null,"inventors":[],"filing_date":"2011-02-25T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G06F","G08C","H04B","H04W","H04W","G06F","G08C"],"num_claims":20,"abstract":"A system includes a master controller disposed on a transit vehicle, a peripheral device disposed on the transit vehicle, a first wireless subsystem communicably coupled to the master controller, and a second wireless subsystem communicably coupled to the peripheral device. The master controller is operable to send a signal to the peripheral device via the first wireless subsystem, the signal comprising a command related to operation of the peripheral device. The peripheral device is operable to receive the signal via the second wireless subsystem and execute the command. The system utilizes a wireless protocol that specifies a unique identification for the system. The master controller and the peripheral device are each configured via the wireless protocol. The configuration includes storage of the unique identification and operability to restrict wireless communication to wireless communication with other devices so configured."},"analysis":{"summary":"The **System and Method for Wireless Control of Signs** patent (US-9852670) introduces a groundbreaking solution for efficiently and securely managing digital displays, particularly within transit vehicles. Its core innovation lies in establishing a highly secure, localized wireless communication network between a master controller and multiple peripheral display devices.\n\nThe primary problem this invention solves is the inherent inefficiency, cost, and security vulnerabilities associated with traditional wired or generic wireless systems for dynamic signage. In environments like public transit, the need for real-time updates, robust security against interference or tampering, and simplified maintenance is paramount. Existing solutions often fall short in delivering all these aspects simultaneously.\n\nTechnically, the system comprises a master controller and peripheral devices, both equipped with wireless subsystems. Crucially, it employs a unique wireless protocol that assigns a specific, shared identification (UID) to the entire system. Both the master controller and all peripheral devices are configured with this UID, and their wireless communication is strictly restricted to other devices possessing the same identification. This creates a closed, authenticated network, ensuring data integrity and preventing unauthorized access or interference.\n\nThe business value and applications are significant. Transit authorities can achieve unprecedented operational agility, enabling instant updates of route information, passenger alerts, and dynamic advertising across entire fleets. This leads to reduced maintenance costs, improved passenger experience through accurate real-time information, and new revenue opportunities from dynamic content delivery. The enhanced security features make it ideal for critical public infrastructure.\n\nThe market opportunity is substantial, spanning public transportation, smart city initiatives (e.g., dynamic traffic signs, public information kiosks), and even large-scale corporate campuses. As the demand for interconnected IoT devices and real-time information grows, this patent provides a foundational technology for secure, scalable, and highly responsive digital signage management.","layman_explanation":"### What Problem Does This Solve?\n\nImagine you're running a busy city bus service, and every bus has several digital signs: one showing the route, another for advertisements, and perhaps one for emergency announcements. Traditionally, updating these signs has been a logistical headache. You either had to send a technician to physically plug into each sign with a cable, or rely on a generic Wi-Fi system that might be slow, unreliable, or worse, vulnerable to hackers. If there's an unexpected traffic diversion or an urgent public safety message, getting that information onto every bus sign, in real-time, securely, and efficiently, becomes a major challenge. The existing methods are costly, time-consuming, and often compromise on security or reliability.\n\n### How Does It Work?\n\nThe **System and Method for Wireless Control of Signs** patent offers an elegant solution. Think of it like a highly secure, private walkie-talkie system just for your bus and its signs. On each bus, there's a 'master controller' – let's call it the Bus Brain. This Bus Brain has a special wireless radio. All the digital signs on the bus (the 'peripheral devices') also have their own special wireless radios. The clever part is that the Bus Brain and *all* the signs are programmed with a unique, secret password or identification for *that specific system*. When the Bus Brain wants to tell a sign to change its display, it sends a message wirelessly. Because both the Bus Brain and the sign know the secret password, they can communicate securely and reliably. Any other device trying to listen in or send commands without the secret password is simply ignored. It's like having a private, encrypted conversation where only the intended parties can participate.\n\n### Why Does This Matter?\n\nThis innovation matters immensely for several reasons. Firstly, it dramatically **reduces operational costs** for transit companies. No more expensive wiring, fewer technician visits for updates, and faster problem resolution. Secondly, it vastly **improves passenger experience and safety**. Imagine real-time updates for bus delays, route changes, or emergency information appearing instantly on every sign. This keeps passengers informed and safe. Thirdly, it opens up new **revenue opportunities** for dynamic advertising, allowing businesses to display targeted, time-sensitive ads that can be changed on the fly. Furthermore, the **enhanced security** of a closed, uniquely identified network is critical for public infrastructure, preventing malicious interference. This patent isn't just about controlling signs; it's about enabling a more agile, secure, and responsive public transportation system that can adapt to the needs of a modern city.\n\n### What's Next?\n\nThe implications of this technology extend beyond just transit. We could see it applied in smart city infrastructure for dynamic traffic signs, public information kiosks, or even large corporate campuses for internal communications. As the world becomes more connected and the need for real-time, secure information dissemination grows, systems like this will become indispensable. Investment in this area promises significant returns as cities and businesses seek to modernize their digital communication infrastructure, making this a foundational technology for future smart environments and highly efficient operations.","technical_analysis":"The **System and Method for Wireless Control of Signs** patent (US-9852670) details an innovative architecture for managing peripheral display devices, primarily within the dynamic environment of transit vehicles. This technical breakdown explores the design principles, communication mechanisms, and security features that define this system.\n\n**Technical Architecture:**\n\nThe system employs a client-server-like model within a localized wireless network. It consists of:\n1.  **Master Controller:** This acts as the central command unit, typically installed on a transit vehicle. It integrates a 'first wireless subsystem' responsible for transmitting control signals and potentially receiving status updates. The master controller is the originator of commands.\n2.  **Peripheral Devices:** These are the digital signs (e.g., LED displays, LCD panels) located on the same transit vehicle. Each peripheral device incorporates a 'second wireless subsystem' designed to receive signals from the master controller and execute embedded commands.\n\nThe physical layer for wireless communication is not explicitly defined but could leverage various short-range wireless technologies (e.g., Wi-Fi, Bluetooth Low Energy, Zigbee, or a proprietary RF solution) adapted to the specific protocol requirements. The key is the logical layer defined by the unique wireless protocol.\n\n**Implementation Details and Algorithm Specifics:**\n\nThe core of this invention lies in its unique wireless protocol and configuration mechanism:\n\n*   **Unique Identification (UID) Assignment:** The system, as a whole, is assigned a unique identification. This UID is a critical parameter that dictates network membership and security.\n*   **Device Configuration:** Both the master controller and *each* peripheral device are explicitly configured with this system's UID. This configuration is a prerequisite for any device to participate in the network. This could involve secure provisioning during manufacturing or a secure pairing process upon deployment.\n*   **Communication Restriction Algorithm:** The wireless protocol specifies a mechanism to restrict communication. This implies that before any data exchange or command transmission, devices perform an authentication step. This step verifies if the communicating peer possesses the correct, shared UID. If the UIDs do not match, the communication attempt is rejected or ignored. This can be implemented at various layers:\n    *   **MAC Layer Filtering:** Similar to how Wi-Fi access points can filter by MAC address, this protocol could filter based on an embedded UID within the wireless frame header.\n    *   **Handshake Protocol:** A secure handshake could involve exchanging UIDs as part of the connection establishment, encrypting them, and only proceeding if they match.\n    *   **Cryptographic Keys:** The UID could be used to derive cryptographic keys for encryption and decryption, meaning only devices with the correct UID can understand the messages.\n\n**Integration Patterns:**\n\nWithin the transit vehicle, the master controller acts as a hub. It might receive higher-level commands or data from an external central management system (e.g., via cellular network, satellite, or vehicle's internal Ethernet backbone) and then translate these into device-specific commands for the peripheral signs. This creates a tiered integration pattern: vehicle-to-cloud for broad commands, and local wireless for granular device control.\n\n**Performance Characteristics:**\n\n*   **Latency:** By establishing a dedicated, restricted wireless channel, the system aims for low-latency command execution. This is critical for real-time information updates.\n*   **Reliability:** The restricted communication environment inherently reduces interference from external networks, improving signal integrity and connection stability. Error detection/correction mechanisms within the protocol would further bolster reliability.\n*   **Scalability:** Adding new peripheral devices or even new transit vehicles becomes a matter of configuring them with the correct UID, allowing the system to scale efficiently without complex network reconfigurations.\n\n**Code-Level Implications:**\n\nDevelopers implementing this system would need to:\n*   Implement the custom wireless protocol stack, including UID handling, authentication, and data encapsulation.\n*   Develop firmware for both master and peripheral devices to manage wireless subsystems, process commands, and interact with display hardware.\n*   Ensure secure storage and retrieval of the UID on device non-volatile memory.\n*   Integrate robust error handling and retransmission logic for reliable command delivery. The use of a cryptographic hash of the UID or a secure key derived from it would be essential for robust security against brute-force attacks on the UID itself.\n\nIn summary, this patent provides a technically sound framework for secure, efficient, and scalable wireless control of signs in dynamic environments. Its emphasis on a unique, system-wide identification for communication restriction is a key differentiator, addressing critical security and reliability concerns in connected infrastructure.","business_analysis":"The **System and Method for Wireless Control of Signs** patent (US-9852670) presents a compelling business proposition by addressing critical operational and security challenges in the management of dynamic digital signage. This innovation is poised to unlock significant market opportunities across several sectors.\n\n**Market Opportunity Size:**\n\nThe global smart transportation market, which includes intelligent signage for transit, is projected to grow substantially, driven by urbanization and the demand for efficient public services. The digital out-of-home (DOOH) advertising market is also expanding rapidly, with a growing emphasis on dynamic, real-time content. This patent directly targets these multi-billion-dollar markets. Every transit vehicle (buses, trains, subways), smart city installation (bus stops, public kiosks, traffic signs), and large commercial campus that uses digital displays represents a potential application for this technology. The retrofit market for existing fleets and infrastructure, alongside new deployments, offers a dual growth path.\n\n**Competitive Advantages:**\n\n1.  **Enhanced Security:** The unique wireless protocol with system-specific identification is a significant differentiator. It creates a closed, authenticated network, making it far more secure than generic Wi-Fi or Bluetooth solutions. This is crucial for critical infrastructure where unauthorized access or interference could have severe consequences.\n2.  **Operational Efficiency:** By enabling real-time, remote updates, the system drastically reduces manual intervention, labor costs, and vehicle downtime associated with physical maintenance or content updates. This translates directly into lower operational expenditures for operators.\n3.  **Reliability and Stability:** The restricted communication environment minimizes interference, ensuring higher data transmission reliability, which is vital for delivering accurate passenger information or emergency alerts.\n4.  **Scalability:** The architecture allows for easy integration of new devices by simply configuring them with the system's unique ID, supporting seamless expansion without complex network overhauls.\n\n**Revenue Potential and Business Models:**\n\nSeveral business models can leverage this technology:\n\n*   **Hardware Sales:** Manufacturing and selling the master controllers and peripheral devices (or modules for existing signs) that incorporate this patented technology.\n*   **Licensing:** Licensing the patent to existing signage manufacturers, transit technology providers, or smart city solution integrators.\n*   **Software-as-a-Service (SaaS):** Offering a cloud-based management platform that interfaces with the master controllers, providing subscription-based services for content management, scheduling, and system monitoring.\n*   **Integration Services:** Providing installation, configuration, and customization services for transit authorities and smart city deployments.\n*   **Ad Revenue Sharing:** For dynamic advertising applications, a revenue-sharing model could be established with transit operators based on ad impressions or engagement facilitated by the system.\n\n**Strategic Positioning:**\n\nThis patent positions its owner as a leader in secure, intelligent wireless communication for dynamic displays. It creates a strong competitive moat against solutions that rely on less secure or less reliable open wireless standards. By focusing on the unique ID protocol, the invention establishes a proprietary ecosystem that can be expanded to other in-vehicle or smart infrastructure communication needs.\n\n**ROI Projections:**\n\nFor transit authorities, the ROI would be driven by:\n*   **Cost Savings:** Reduced labor, maintenance, and fuel costs (due to fewer physical visits to vehicles).\n*   **Increased Revenue:** Higher advertising revenue from dynamic content and improved passenger satisfaction leading to increased ridership.\n*   **Enhanced Safety and Compliance:** Faster dissemination of emergency information, potentially reducing liability.\n\nFor investors, the potential lies in capturing a significant share of the growing smart transportation and DOOH markets, bolstered by a strong intellectual property position. The predictable recurring revenue from SaaS and maintenance contracts, combined with initial hardware sales, offers an attractive financial outlook. This patent is not just a technical improvement; it's a strategic asset for market disruption.","faqs":[{"answer":"The **System and Method for Wireless Control of Signs** (US-9852670) is a patented invention that describes a highly secure and efficient way to wirelessly manage digital displays, particularly those found on transit vehicles like buses and trains. It's designed to overcome the limitations of traditional wired systems and generic wireless communication by creating a dedicated, authenticated network for controlling signs.\n\nAt its core, this innovation involves a 'master controller' situated on a transit vehicle and several 'peripheral devices' (the digital signs) also on that vehicle. These components communicate wirelessly using a specialized protocol. The most critical aspect is that the entire system is assigned a unique identification (UID), and both the master controller and all peripheral devices are configured with this UID. This configuration restricts wireless communication exclusively to devices that share this unique identification.\n\nThis mechanism ensures that only authorized devices within the system can interact, preventing external interference or unauthorized access. It allows for real-time updates and command execution for the signs, enhancing operational efficiency and security for public transportation and smart city applications. In essence, it's a private, secure wireless network for managing dynamic displays.","question":"What is System and Method for Wireless Control of Signs?"},{"answer":"The **System and Method for Wireless Control of Signs** operates on a principle of secure, authenticated wireless communication. Here's a breakdown of its functionality:\n\nFirst, a 'master controller' is installed on a transit vehicle. This controller acts as the central hub for managing the signs on that specific vehicle. It's equipped with a wireless subsystem capable of sending commands. Simultaneously, each digital sign, or 'peripheral device,' on the vehicle also has its own wireless subsystem, designed to receive these commands.\n\nSecond, the entire system is assigned a 'unique identification' (UID). This UID is a specific, system-wide identifier. Both the master controller and all peripheral devices are pre-configured with this exact UID. This isn't just a simple password; it's deeply embedded in their communication protocol. When the master controller wants to send a signal—for instance, to change the route displayed on a sign—it transmits a command via its wireless subsystem.\n\nThird, the peripheral device receives this signal via its own wireless subsystem. Before executing the command, the device verifies that the signal originated from an entity configured with the same unique identification. If the UIDs match, the command is executed. If they don't, the communication is rejected, effectively isolating the system from unauthorized external devices. This closed-loop communication ensures security, reliability, and efficient command execution for updating information on the signs.","question":"How does System and Method for Wireless Control of Signs work?"},{"answer":"The **System and Method for Wireless Control of Signs** primarily solves the critical challenges associated with managing dynamic digital displays, particularly in high-stakes environments like public transit. Historically, these challenges have fallen into three main categories:\n\n1.  **Operational Inefficiency and Cost:** Traditional wired systems are expensive and time-consuming to install, maintain, and modify. Updating content or troubleshooting often requires physical access to each sign, leading to significant labor costs and vehicle downtime. Generic wireless systems, while offering flexibility, can be unreliable and complex to manage across large fleets.\n\n2.  **Security Vulnerabilities:** Open wireless networks are susceptible to hacking, unauthorized access, and interference. In public transportation, this means a risk of malicious actors displaying false information, which can compromise public safety and trust. Ensuring the integrity and authenticity of displayed information is paramount.\n\n3.  **Reliability and Responsiveness:** In electromagnetically noisy urban environments, generic wireless communication can suffer from interference, leading to dropped connections, delayed updates, and unreliable command execution. There was a pressing need for a system that could guarantee consistent, real-time information delivery without compromise.\n\nThis patent addresses these issues by providing a secure, dedicated, and highly efficient wireless communication framework that minimizes operational costs, enhances security, and ensures reliable, real-time information dissemination for critical signage applications.","question":"What problem does System and Method for Wireless Control of Signs solve?"},{"answer":"The patent data for **System and Method for Wireless Control of Signs** (US-9852670) does not list specific inventors or an assignee in the provided abstract. This information is typically found in the full patent document's front page.\n\nHowever, the concept of such an invention would typically stem from a team of engineers, software developers, and communication specialists. These individuals would possess expertise in wireless communication protocols, embedded systems, network security, and potentially the specific operational challenges of transit systems or smart city infrastructure. The development process would involve extensive research, prototyping, and testing to create a robust and secure system capable of operating reliably in complex environments.\n\nIn many cases, patents for complex systems like this are assigned to a corporation or research institution rather than individual inventors, reflecting the collaborative nature of modern technological development. Without the full patent document, the exact inventors and assignee remain unspecified here.","question":"Who invented System and Method for Wireless Control of Signs?"},{"answer":"The **System and Method for Wireless Control of Signs** offers several pivotal benefits that address long-standing challenges in dynamic signage management:\n\n1.  **Enhanced Security:** By utilizing a unique system identification (UID) for communication, the invention creates a closed, authenticated network. This significantly reduces the risk of unauthorized access, hacking, or interference, ensuring the integrity and trustworthiness of the displayed information, which is crucial for public safety and operational reliability.\n\n2.  **Increased Operational Efficiency:** The wireless nature of the system eliminates the need for complex and costly physical wiring. This simplifies installation, reduces maintenance efforts, and allows for remote, real-time content updates across entire fleets or networks of signs. This leads to substantial savings in labor, materials, and vehicle downtime.\n\n3.  **Superior Reliability and Responsiveness:** The dedicated wireless protocol and restricted communication minimize interference from external sources, ensuring consistent and dependable signal transmission. This guarantees that commands are executed promptly and accurately, enabling real-time updates for critical information like route changes, emergency alerts, or dynamic advertisements.\n\n4.  **Scalability and Flexibility:** The architecture is designed for easy expansion. New signs or vehicles can be seamlessly integrated into the system by simply configuring them with the established unique identification. This provides inherent flexibility for growing infrastructures without complex network reconfigurations, making it future-proof for evolving smart city and transit needs.","question":"What are the key benefits of System and Method for Wireless Control of Signs?"},{"answer":"The **System and Method for Wireless Control of Signs** distinguishes itself from prior art by fundamentally rethinking wireless communication for dynamic displays, particularly in terms of security and dedicated network integrity. Traditional solutions typically fall into two categories:\n\n1.  **Wired Systems:** These rely on physical cables for data transmission. While generally secure from wireless interception, they are costly to install, inflexible for updates, prone to physical damage (especially in moving vehicles), and difficult to maintain. This patent completely eliminates the need for such extensive wiring between the controller and the signs.\n\n2.  **Generic Wireless Systems (e.g., standard Wi-Fi, Bluetooth):** These offer flexibility but suffer from critical drawbacks. They are highly susceptible to external interference in busy environments, leading to unreliable communication. More importantly, they are inherently less secure, as anyone within range can potentially attempt to access or interfere with the network, even with basic encryption. This poses a significant risk for public information systems.\n\nThis invention's key differentiation lies in its **unique wireless protocol that specifies a unique identification (UID) for the system**. Unlike generic wireless, where devices might connect to any available network, this patent ensures that only devices specifically configured with the *same* UID can communicate. This creates a closed, authenticated, and inherently secure ecosystem, effectively isolating the network from unauthorized external devices and minimizing interference, a capability largely absent in prior wireless signage control systems.","question":"How is System and Method for Wireless Control of Signs different from prior art?"},{"answer":"The **System and Method for Wireless Control of Signs** is poised to have a significant impact on several key industries, primarily those involved in public information dissemination and dynamic display management:\n\n1.  **Public Transportation (Transit Technology):** This is the most direct and immediate impact area. Buses, trains, subways, and even ride-sharing services can leverage this technology for real-time updates of route information, schedules, emergency alerts, and dynamic advertising on their vehicles. It will enhance passenger experience, improve operational efficiency, and bolster safety.\n\n2.  **Smart Cities and Urban Infrastructure:** The patent's principles can be extended to various smart city applications. This includes dynamic traffic signs that adapt to real-time conditions, public information kiosks that display secure and up-to-date community information, and digital signage at public venues like airports, stadiums, and convention centers for secure wayfinding and event information.\n\n3.  **Digital Out-of-Home (DOOH) Advertising:** The DOOH industry will benefit immensely from the ability to deliver highly flexible, real-time, and context-aware advertising content. This allows for geo-targeted campaigns, time-sensitive promotions, and rapid content changes, leading to more effective advertising and new revenue streams.\n\n4.  **Logistics and Fleet Management:** Beyond passenger transit, any large fleet of vehicles (e.g., delivery trucks, utility vehicles) that requires dynamic information displays or status indicators could adopt this secure wireless control system for internal communications or external messaging.\n\nIn essence, any sector requiring reliable, secure, and flexible management of digital displays in dynamic or public environments stands to be transformed by this innovation.","question":"What industries will System and Method for Wireless Control of Signs impact?"},{"answer":"The **System and Method for Wireless Control of Signs** patent, identified as US-9852670, has a clear timeline regarding its filing and publication:\n\n*   **Filing Date:** The patent application for this invention was filed on **2011-02-25**.\n\n*   **Publication Date:** The patent was officially published and granted on **2017-12-26**.\n\nThis timeline indicates a significant period of examination by the patent office, which is common for complex technological inventions. The gap between filing and publication allows for thorough review of the claims, comparison against prior art, and potential revisions to the patent application. The eventual publication signifies that the claims were deemed novel, non-obvious, and useful, thereby granting the inventors or assignee exclusive rights to the technology described in the **System and Method for Wireless Control of Signs** for a specified period from the filing date.","question":"When was System and Method for Wireless Control of Signs filed/granted?"},{"answer":"The commercial applications of the **System and Method for Wireless Control of Signs** are broad and impactful, extending across multiple sectors focused on public information and dynamic display management:\n\n1.  **Public Transit Fleets:** This is the most direct application. Commercial transit operators can implement this system to wirelessly control destination signs, route maps, advertising displays, and emergency alert panels on buses, trains, and subways. This enables real-time schedule updates, immediate passenger information dissemination during disruptions, and dynamic, geo-targeted advertising campaigns, leading to enhanced passenger experience and operational cost savings.\n\n2.  **Smart City Deployments:** Cities can integrate this technology into their urban infrastructure for dynamic traffic management (e.g., variable message signs that adapt to congestion or accidents), public information kiosks at bus stops or public squares, and digital signage for public safety announcements. The secure nature of the system is particularly valuable for critical city services.\n\n3.  **Digital Out-of-Home (DOOH) Advertising Networks:** Companies managing large networks of digital billboards or screens in public spaces can utilize this system for highly flexible content delivery. Advertisements can be updated instantly based on time of day, audience demographics, local events, or even weather conditions, maximizing ad revenue and campaign effectiveness.\n\n4.  **Large Venues and Campuses:** Airports, sports stadiums, convention centers, and large corporate or university campuses can deploy this for secure, dynamic wayfinding, event schedules, emergency notifications, and internal communications on their internal shuttle systems or fixed displays. The ability to manage numerous signs from a central point, securely and wirelessly, offers significant commercial value in these environments.","question":"What are the commercial applications of System and Method for Wireless Control of Signs?"},{"answer":"The **System and Method for Wireless Control of Signs** lays a robust foundation for numerous future developments, pushing the boundaries of secure wireless communication and intelligent infrastructure:\n\n1.  **Integration with AI and Machine Learning:** Future iterations could incorporate AI to dynamically optimize content delivery based on real-time data (e.g., passenger density, traffic patterns, local events). The system could predict optimal times for advertising, suggest relevant information for passengers, or even detect and report anomalies in sign operation proactively.\n\n2.  **Enhanced Security Protocols:** While already robust, future developments might explore quantum-resistant cryptographic methods for UID generation and verification, or integrate blockchain technology for immutable logging of command transactions, further increasing tamper-proof assurances.\n\n3.  **Broader IoT Ecosystem Integration:** The core principle of a unique identification for restricted communication could be extended beyond signs to other in-vehicle IoT devices (e.g., environmental sensors, passenger counting systems, infotainment units). This would create a unified, secure internal vehicle network that communicates seamlessly with a master controller, forming a comprehensive smart transportation platform.\n\n4.  **Self-Healing and Autonomous Operation:** The system could evolve to include more advanced self-diagnostic and self-healing capabilities. Peripheral devices might autonomously report failures, and the master controller could reconfigure the network or even suggest maintenance actions without human intervention. This moves towards a more autonomous and resilient intelligent infrastructure. These developments will solidify the **System and Method for Wireless Control of Signs** as a cornerstone of future smart environments.","question":"What are the future developments expected for System and Method for Wireless Control of Signs?"}],"topics":["wireless sign control","transit vehicle communication","smart signage","IoT displays","wireless protocol","technical","unpacking","system"],"tech_cluster":null},"seo":{"title":"Wireless Control of Signs - Patent US-9852670","description":"Discover the System and Method for Wireless Control of Signs (US-9852670) patent. Secure, real-time wireless management for transit vehicle displays. Detailed analysis & applications.","keywords":["wireless sign control","transit vehicle communication","smart signage","IoT displays","wireless protocol","peripheral device control","master controller patent","dynamic displays","secure wireless","US-9852670","patent","wireless communication","transportation technology","digital signs","real-time updates"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852670","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-9852670","citation_suggestion":"Patentable. \"System and method for wireless control of signs\" (US-9852670). https://patentable.app/patents/US-9852670","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852670","json":"https://patentable.app/api/llm-context/US-9852670","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:58:19.451Z"}