{
  "patent_number": "US 9368994",
  "country": "US",
  "title": "Device That Adjusts Power for Charging Multiple Devices",
  "original_title": "Dynamic charging device and method thereof",
  "summary": "This 2016 patent describes a system that intelligently adjusts the power supplied to charge multiple devices, ensuring one device gets a steady charge while another can receive a variable amount.",
  "what_it_does": "This patent describes a device that manages power for charging. It has a detection module that senses an incoming power signal (like current or voltage). This signal goes to a control module, which creates a control signal. An output module then uses both the input signal and the control signal to adjust the power. The key is how it handles a 'load module' which connects a 'master control device' and a 'portable electronic device' in parallel. The portable device gets an adjustable current, while the master device gets a fixed current. For example, imagine charging a laptop (master control device) and a phone (portable electronic device) from the same power source. This device would ensure the laptop gets a stable, fixed amount of power it needs to operate, while the phone's charging rate can be adjusted dynamically, perhaps to prevent overcharging or to prioritize power flow.",
  "what_it_does_not_cover": [
    "Charging systems that only manage a single device.",
    "Charging systems that do not adjust the power dynamically based on feedback or control signals.",
    "Systems where both devices receive a fixed amount of power.",
    "Systems where both devices receive an adjustable amount of power.",
    "Charging methods that do not involve parallel connection of devices."
  ],
  "filed": "2013-03-12",
  "granted": "2016-06-14",
  "expires": "2033-03-12",
  "status": "active",
  "holder": "Wistron Corp",
  "holder_url": "https://patentbrief.org/company/wistron-corp",
  "inventors": [
    {
      "name": "Wen-Nan Hsia",
      "url": "https://patentbrief.org/inventor/wen-nan-hsia"
    }
  ],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "semiconductors",
    "software"
  ],
  "abstract": "A dynamic charging device includes a detection module for generating a detection signal according to an input signal, a control module coupled to the detection module for generating a control signal according to the detection signal, and an output module coupled to the control module for dynamically adjusting amounts of the input signal according to the control signal and the input signal, so as to process a charging operation for a load module, wherein the input signal is an input current or a voltage source.",
  "url": "https://patentbrief.org/patent/us/9368994/dynamic-charging-device-and-method-thereof",
  "markdown_url": "https://patentbrief.org/patent/us/9368994/dynamic-charging-device-and-method-thereof/md",
  "google_patents_url": "https://patents.google.com/patent/US9368994",
  "relatedPatents": [
    {
      "patentNumber": "9874914",
      "countryCode": "US",
      "title": "How Devices Negotiate Power Sharing When Connected Together",
      "url": "https://patentbrief.org/patent/us/9874914/hololens-mixed-reality-display"
    },
    {
      "patentNumber": "20120091953",
      "countryCode": "US",
      "title": "How Electric Cars Adjust Charging Speed to Available Power",
      "url": "https://patentbrief.org/patent/us/20120091953/ac-current-control-of-mobile-battery-chargers"
    },
    {
      "patentNumber": "9168838",
      "countryCode": "US",
      "title": "How an EV Charging Station Manages Power from Batteries and the Grid",
      "url": "https://patentbrief.org/patent/us/9168838/charging-control-system-and-charging-control-method"
    },
    {
      "patentNumber": "10700376",
      "countryCode": "US",
      "title": "How to Fast-Charge Lithium Batteries Without Damaging Them",
      "url": "https://patentbrief.org/patent/us/10700376/methods-for-fast-charging-and-detecting-lithium-plating-in-lithium-ion-batteries"
    },
    {
      "patentNumber": "10186887",
      "countryCode": "US",
      "title": "How Batteries Charge Fast in the Cold Without Damage",
      "url": "https://patentbrief.org/patent/us/10186887/systems-and-methods-for-fast-charging-batteries-at-low-temperatures"
    }
  ]
}