Google Inc.

Motorola Mobility LLC

Shyam Narayan

Naveen Aerrabotu

Rohit R Sinha

Sreenivasulu Rayanki

Yun-Ming Wang

A method provides device access security via use of periodically changing Quick Response (QR) codes. The method includes: generating () a first authentication QR code and assigning () the generated QR code as the current authentication mechanism for accessing the device. Contemporaneously with the generation of the QR code, at least one QR code validity parameter is established () to define when access to the device can be provided to a second device that provides the correct authentication QR code along with the access request. The method includes, in response to a pre-defined trigger () of the QR code validity parameter: generating () a new authentication QR code, different from a previously generated authentication QR code; assigning () the new authentication QR code as the current authentication mechanism for accessing the device; and enabling access to the first device to only second devices that provide the current authentication QR code.

Device security utilizing continually changing QR codes

A client device encodes data into an audio signal and communicates the audio data to an additional client device, which decodes the data from the audio signal. The data is partitioned into characters, which are subsequently partitioned into a plurality of sub-characters. Each sub-character is encoded into a frequency, and multiple frequencies that encode sub-characters are combined by the client device to generate an audio signal. Frequencies encoding sub-characters may be above 16 kilohertz, so the sub-characters are transmitted using frequencies that are inaudible to humans. The audio signal is communicated to an additional client device, which decodes frequencies from the audio signal to sub-characters, which are then combined into characters by the additional client device to generate the data.

Communicating information between devices using ultra high frequency audio

Disclosed are methods and systems for devices in peer-to-peer networks to form a new group using information sent by a group owner in a previous group session. In some embodiments, a method of delegating group ownership from a first device to a second device for the formation of a new group includes: determining the second device will be the group owner of the new group during a current group session; broadcasting to devices in the current group session that the second device will be the group owner of the new group; dissolving the current group session; and forming a new group with the second device as group owner.

Methods and systems for delegating group ownership for the formation of a new group

A first user equipment (UE) includes a display, at least two communication mechanisms that respectively supports a first and a second communication mode, and a processor communicatively coupled to the display and the communication mechanisms. The first UE further includes a failed pairing notification (FPN) utility that configures the first UE to: initiate communication with a second UE via a first communication mode; and in response to a trigger condition indicating that the first communication mode is not supported at either the first UE or the second UE, generate a notification alerting a user of the first UE that (1) a different communication mode is required for the first UE to communicate with the second UE and (2) an authorization QR code is required to be exchanged between the first UE and the second UE as an authentication mechanism before the communication can be established via the different communication mode.

Automatic user notification, with quick response (QR) code generation following failed NFC device pairing

A method of assigning contacts to a speed dial function. The method can include identifying contacts that are candidates to be assigned to the speed dial function on a communication device. The method also can include identifying a geographic distance between each of the identified candidates and the communication device. The method further can include, via a processor, assigning a first of the identified candidates that is closest to the communication device to a first speed dial indicator, and assigning a second of the identified candidates that is next closest to the communication device to a second speed dial indicator.

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Grayslake, IL, United States of America

Shyam Narayan