Patent No. US11363439 (titled "Method For Communicating Emergency Messages To An Electronic Devices Associated With A Target Person") was filed by Ryrusch Ip Llc on Nov 3, 2020.
’439 is related to the field of emergency communication systems, specifically methods for conveying messages from emergency personnel to nearby individuals. Current methods, such as sirens and loudspeakers, often fail due to ambient noise and inattentiveness of the target person, especially those inside vehicles. The patent addresses the need for a more direct and reliable communication method in emergency situations.
The underlying idea behind ’439 is to establish a direct communication link between emergency personnel and nearby electronic devices, such as radios or cell phones, to deliver targeted emergency messages. This is achieved by using a transmitter in the emergency vehicle to send a signal that can be received by electronic devices within a certain radius, allowing emergency personnel to communicate instructions or warnings directly to individuals in the vicinity.
The claims of ’439 focus on a method comprising providing an emergency vehicle with a transmitter, and an electronic device associated with a target person. The transmitter sends an emergency signal carrying a message and security codes. The method includes the emergency personnel selecting the message and signal radius, positioning the target person within the signal radius, transmitting the message, the electronic device confirming the message using receiving security codes, electronically connecting the transmitter to the electronic device, and controlling the audio/visual function of the electronic device to improve the target person's ability to receive the message.
In practice, the system works by having emergency personnel activate a transmitter in their vehicle, which then broadcasts an emergency signal within a defined signal radius . This signal contains both the emergency message and a security code. Electronic devices within the radius, pre-configured with a matching security code, receive the signal and, upon verification, establish a connection. This allows the emergency personnel to override the device's current audio output (e.g., lowering the radio volume) and deliver the emergency message directly to the target person.
This approach differs from traditional methods by creating a closed, secure communication network that bypasses ambient noise and inattentiveness. Unlike sirens or loudspeaker announcements, the message is delivered directly to the target person's electronic device, ensuring a higher likelihood of reception. The use of security codes prevents unauthorized access and ensures that only devices within the designated radius receive the emergency message, minimizing disruption and maximizing the effectiveness of the communication.
In the late 2010s when ’439 was filed, systems commonly relied on established wireless communication protocols for transmitting data between devices. At a time when location-based services were typically implemented using GPS or cellular triangulation, hardware or software constraints made secure and reliable communication of emergency messages to specific target devices non-trivial.
The examiner allowed the claims because they were amended to include limitations such as: the transmitter being attached to the emergency vehicle, the electronic device being at least one of a radio, a cell phone, and a loudspeaker, and the receiving security code being pre-selected so as to be secure for said electronic device. These limitations were not taught or suggested by the prior art.
This patent contains 13 claims, of which claims 1, 7, and 11 are independent. The independent claims focus on methods of emergency communication involving an emergency vehicle transmitting a message to a target person's electronic device, with security measures to confirm the message's authenticity. The dependent claims generally add specific details or limitations to the method described in the independent claims, such as the transmitter's location, the target person's location, or the type of electronic device used.
Definitions of key terms used in the patent claims.

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