{
  "patent_number": "US 12255678",
  "country": "US",
  "title": "How Wireless Radios Automatically Adjust to Avoid Signal Overload",
  "original_title": "Interrupt driven reconfiguration of configurable receiver front end module",
  "summary": "A method for wireless devices to automatically rearrange their internal signal-processing components when incoming radio signals are too strong and threaten to overwhelm the hardware.",
  "what_it_does": "This patent describes a system that monitors the strength of incoming radio frequency (RF) signals to prevent hardware damage or data corruption. When a signal is too powerful, it triggers an interrupt—a signal to the device's controller—indicating that either the Low Noise Amplifier (LNA) or the internal passive network is being overloaded. In response, the system dynamically reconfigures the signal path by changing the order of components or bypassing the LNA entirely. For example, if a signal is too strong for the LNA, the device might switch from a 'rural mode' (direct antenna connection) to an 'urban mode' (routing the signal through an RF filter first) to attenuate the power before it hits sensitive components.",
  "what_it_does_not_cover": [
    "Does not cover manual configuration of radio front ends by a user.",
    "Does not cover signal processing techniques that rely solely on software-based filtering without hardware reconfiguration.",
    "Does not cover systems that lack an interrupt-driven feedback mechanism for detecting signal overload."
  ],
  "filed": "2022-08-29",
  "granted": "2025-03-18",
  "expires": null,
  "status": "active",
  "holder": "Silicon Laboratories Inc",
  "holder_url": "https://patentbrief.org/company/silicon-laboratories-inc",
  "inventors": [
    {
      "name": "Hendricus De Ruijter",
      "url": "https://patentbrief.org/inventor/hendricus-de-ruijter"
    },
    {
      "name": "Thomas Edward Voor",
      "url": "https://patentbrief.org/inventor/thomas-edward-voor"
    },
    {
      "name": "Jeffrey L. Sonntag",
      "url": "https://patentbrief.org/inventor/jeffrey-l-sonntag"
    }
  ],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "telecommunications",
    "semiconductors"
  ],
  "abstract": "In one aspect, a method comprises: receiving, in a controller of a wireless device, at least one of a first interrupt or a second interrupt, where: the first interrupt is to indicate that a receive radio frequency (RF) signal received in a front end circuit of the wireless device is overloading at least a low noise amplifier (LNA) of the front end circuit; and the second interrupt is to indicate that the receive RF signal is overloading at least a passive network of a system on chip (SoC) of the wireless device; and in response to the at least one of the first interrupt or the second interrupt, reconfiguring the front end circuit from a first mode into a second mode, where a relative order of a receiver RF signal processing path is different in the first mode than in the second mode.",
  "url": "https://patentbrief.org/patent/us/12255678/falcon-1",
  "markdown_url": "https://patentbrief.org/patent/us/12255678/falcon-1/md",
  "google_patents_url": "https://patents.google.com/patent/US12255678",
  "relatedPatents": []
}