Google Inc.

Motorola Corporation

Motorola Mobility LLC

David A Vanyek

Daniel S Rokusek

Kevin L Weirich

Sanjay Gupta

Gary L Christopher

Sang Oh

Peter A Kindinger

Edward D Brann

Sang Y Oh

An electronic device () includes a control circuit () and one or more modules () operable with the control circuit. An application usage module () is operable with the control circuit to define one or more applications (), operable with the control circuit and otherwise available for use by a user () when the electronic device is in an unlocked state, that are precluded from use by an authorized person when the electronic device is operably connected to a predefined peripheral accessory () when unlocked.

Method and system for providing limited usage of an electronic device

A transmitter device () receives an audio signal from an audio source device (), and transmits the audio signal at a low power over a commercial broadcast channel to a local receiver (). The transmitter device selects an initial channel by scanning the available spectrum, partitioned into sub-bands (-), and measuring the received signal strength in each channel. The channel having the lowest strength is used to set a threshold. The sub-band with most channels meeting the threshold is initially selected, and the channel in the initially selected sub-band with the lowest received signal strength is selected for initial use. A context-based weighting factor may be applied in selecting the initial channel or in selecting subsequent channels when the initial channel conditions degrade.

Method and apparatus for selecting a radio channel for transmitting an audio signal to a radio local receiver

A method () for controlling audio signals to an FM transmitter and a loudspeaker of a hands-free adapter first sends a first audio signal to the loudspeaker () and measures and records a loudspeaker audible artifact such as echo return loss () and/or echo tail length (). Next, the hands-free adapter sends a second audio signal to the FM transmitter and the loudspeaker () and measures and records an FM transmitter and loudspeaker audible artifact such as echo return loss () and/or echo tail length (). If the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is greater than a threshold (), the hands-free adapter sends a third audio signal to the FM transmitter only (), and if the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is not greater than the threshold, the hands-free adapter sends the third audio signal to both the FM transmitter and the loudspeaker ().

Method for controlling audio signals to an FM transmitter and a loudspeaker of a hands-free adapter

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Libertyville, IL, United States of America

David A Vanyek