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AppleGranted patentNetworks & wirelessInterest 3/10

Apple patents handoff method for seamless call continuation

Patent drawing
Patent drawing from the official filing.

Apple has been granted a patent for a method that allows a communication session to move from one device to another without interruption. The system works by having the original device send an advertisement message, which a new device uses to verify its identity before taking over the call.

Why it mattersThis improves the reliability of switching between devices, such as moving a call from a phone to a laptop, ensuring the conversation continues without dropping.

In the filing’s own words

Aspects of the subject technology include transmitting, by a first device, an advertisement message corresponding to a communications session the first device is participating in with at least a second device. The first device may receive, during the communications session, a communications session control message generated by a third device. The communications session control message may include information contained in the advertisement message. The first device may validate the third device based on the communications session control message and remove the first device from the communications session in response to successfully validating the third device.

What exactly they claim (claim 1)

1. A method comprising: transmitting, by a first device, an advertisement message corresponding to a communications session the first device is participating in with at least a second device; receiving, by the first device and during the communications session, a communications session control message generated by a third device, the communications session control message comprising information contained in the advertisement message; validating, with the first device, the third device based on the communications session control message; and removing the first device from the communications session in response to successfully validating the third device, wherein removing the first device comprises causing initiation of a handoff of the communications session to the third device to enable seamless continuation of the communications session.

Facts

Company
Apple (Apple Inc.)
Official title
Seamless continuation of communication sessions
Patent number
US12757267B2
Application number
18113584
Filed
Feb 23, 2023
Granted
Oct 6, 2026
Inventors
10
Claims
21

Classified under

H04W 76/14 Electricity & electronicsH04W 48/10 Electricity & electronicsH04W 76/15 Electricity & electronicsH04L 12/1822 Electricity & electronicsH04L 65/403 Electricity & electronics

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.