{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853821","patent":{"patent_number":"US-9853821","title":"Communication system and communication apparatus controlling a switching hub for power saving","assignee":null,"inventors":[],"filing_date":"2011-11-16T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":8,"abstract":"A CPU of an image forming apparatus controls, according to establishment of a sleep change condition, a MAC/PHY in a network unit to change the image forming apparatus from a link-up state to a link-down state. The CPU controls the image forming apparatus to change from a normal mode to a deep sleep mode. A CPU of the network unit controls, according to the change of the image forming apparatus from the normal mode to the deep sleep mode, the MAC/PHY to change the link-down state of the image forming apparatus to the link-upstate. The CPU controls the MAC/PHY to transmit a MAC address necessary for causing the image forming apparatus to participate in VLAN to a switching hub."},"analysis":{"summary":"The Communication System and Communication Apparatus Controlling a Switching Hub for Power Saving patent focuses on reducing power consumption in network devices, specifically image forming apparatuses like printers and scanners. The core innovation lies in the dynamic adjustment of link states between a communication apparatus and a switching hub. When a device enters a sleep mode, it signals this state to the switching hub, which then transitions the device to a link-down state, effectively cutting off power. Upon waking, the device seamlessly transitions back to a link-up state, maintaining network connectivity. This approach solves the problem of idle power consumption, where devices continue to draw power even when not in use. The technical approach involves coordinated communication between the communication apparatus, the network unit (MAC/PHY), and the switching hub. The business value includes reduced energy costs, improved environmental sustainability, and enhanced device lifespan. The market opportunity is significant, particularly in office environments and data centers where numerous devices are connected to the network. By adopting systems leveraging this technology, businesses can significantly reduce their energy bills and demonstrate their commitment to environmental responsibility. This innovation aligns perfectly with the growing trend of green computing and responsible IT practices.","layman_explanation":"The Communication System and Communication Apparatus Controlling a Switching Hub for Power Saving patent addresses the problem of wasted energy in network devices. In simple terms, many devices connected to a network, such as printers and computers, continue to consume power even when they are not actively being used. This is similar to leaving the lights on in a room when no one is there.\n\nThis patent describes a system that automatically reduces the power consumption of these devices when they are not in use. It works by having the device communicate with the network's switching hub when it enters a sleep mode. The hub then essentially 'turns off' the connection to the device, preventing it from drawing power. When the device needs to be used again, the connection is quickly restored.\n\nThis matters because it can significantly reduce energy costs for businesses and individuals. It also helps to reduce the environmental impact of technology by lowering overall energy consumption. The technology provides a competitive advantage by offering a more energy-efficient solution compared to traditional network setups.\n\nFuture applications could include wider adoption of this technology in various network devices and further optimization of the power-saving algorithms. The market adoption timeline will depend on the integration of this technology by device manufacturers and network equipment providers. This innovation has the potential to attract investment in companies focused on green technology and energy efficiency.","technical_analysis":"The Communication System and Communication Apparatus Controlling a Switching Hub for Power Saving patent details a system designed to minimize power wastage in network environments. The technology relies on a coordinated interaction between a communication apparatus (like a printer), a network unit housing the MAC/PHY, and a switching hub. The communication apparatus monitors its operational state. Upon entering a sleep state, the apparatus signals the network unit. The network unit then instructs the MAC/PHY to transition the communication apparatus from a 'link-up' to a 'link-down' state. This effectively cuts power consumption during idle periods. Conversely, when the communication apparatus requires reactivation, the network unit facilitates a seamless transition back to the 'link-up' state. The system also incorporates VLAN management, ensuring devices rejoin their respective VLANs upon waking. Implementation involves modifications to device firmware and network hub software. The technical architecture requires precise timing and synchronization between the components. The system's performance depends on the speed and reliability of the communication channels. Code-level implications include the development of drivers and APIs that enable the communication apparatus to signal its state to the network unit and for the network unit to control the MAC/PHY accordingly. Integration patterns involve adherence to network communication protocols and VLAN standards. The key technical innovation is the automated and dynamic management of link states, leading to reduced power consumption without disrupting network connectivity.","business_analysis":"The Communication System and Communication Apparatus Controlling a Switching Hub for Power Saving patent addresses a significant market need: reducing energy consumption in network environments. The market opportunity is substantial, driven by increasing energy costs and growing environmental awareness. The competitive advantages include reduced operational costs, enhanced environmental sustainability, and improved device lifespan. The technology has the potential to generate revenue through licensing agreements, product sales, and managed services. Business models include offering power-saving network solutions to businesses, integrating the technology into existing network devices, and providing managed print services with energy-efficient options. Strategic positioning involves targeting businesses and organizations that prioritize energy efficiency and sustainability. ROI projections indicate significant cost savings over time, particularly in large office environments and data centers. The technology's impact can be measured in terms of reduced energy consumption, lower energy bills, and decreased carbon emissions. The business implications are far-reaching, potentially transforming how networks are managed and powered in the future.","faqs":null,"topics":["power saving","switching hub","network efficiency","energy management","VLAN"],"tech_cluster":null},"seo":{"title":"Power Saving Switching Hub - Patent US-9853821","description":"Discover how this communication system reduces network power consumption by intelligently managing link states. Full patent analysis, claims, and technical details.","keywords":["power saving","switching hub","network efficiency","energy management","VLAN","MAC/PHY","communication system","patent","patent US-9853821"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853821","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-9853821","citation_suggestion":"Patentable. \"Communication system and communication apparatus controlling a switching hub for power saving\" (US-9853821). https://patentable.app/patents/US-9853821","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853821","json":"https://patentable.app/api/llm-context/US-9853821","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:37:26.588Z"}