Duplex audio for mobile communication device and accessory
First Claim
Patent Images
1. A method of operating an accessory, the method comprising:
- communicating, by the accessory to a mobile communication device, capabilities of the accessory, the capabilities including an option to provide an input audio signal to the mobile communication device through an audio input path concurrently with receiving an output audio signal from the mobile communication device through an audio output path;
in response to receiving an initiation notification for a telephone call from the mobile communication device while concurrently receiving the output audio signal through the audio output path;
enabling the audio input path by the accessory;
receiving an input audio signal by the accessory from an input audio source; and
delivering the input audio signal on the audio input path by the accessory; and
in response to receiving a termination notification for the telephone call from the mobile communication device, disabling the audio input path by the accessory.
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Abstract
Duplex audio is provided for a mobile communication device and an accessory. In some embodiments, the accessory can selectably operate in a duplex audio mode, concurrently sending audio to and receiving audio from the mobile communication device, or in another audio mode. In duplex audio mode, the accessory can enable its internal audio processing operations (e.g., echo cancellation) while the mobile communication device disables its corresponding internal operations or vice versa. The mobile communication device can control when the accessory transitions into and/or out of duplex audio mode.
25 Citations
16 Claims
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1. A method of operating an accessory, the method comprising:
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communicating, by the accessory to a mobile communication device, capabilities of the accessory, the capabilities including an option to provide an input audio signal to the mobile communication device through an audio input path concurrently with receiving an output audio signal from the mobile communication device through an audio output path; in response to receiving an initiation notification for a telephone call from the mobile communication device while concurrently receiving the output audio signal through the audio output path; enabling the audio input path by the accessory; receiving an input audio signal by the accessory from an input audio source; and delivering the input audio signal on the audio input path by the accessory; and in response to receiving a termination notification for the telephone call from the mobile communication device, disabling the audio input path by the accessory. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A non-transitory computer-readable medium containing executable instructions that cause a processor of an accessory to perform operations comprising:
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signaling to a mobile communication device capability information for the accessory, the capability information indicating that the accessory is operable to provide an input audio signal to the mobile communication device through an audio input path concurrently with receiving an output audio signal from the mobile communication device through an audio output path; in response to receiving an initiation notification of a telephone call from the mobile communication device; enabling the audio output path and the audio input path to be concurrently active; configuring an audio section of the accessory to concurrently receive the output audio signal on the audio output path and the input audio signal from an input audio source; and further configuring the audio section to concurrently route the input audio signal on the audio input path and the output audio signal to an output; and in response to receiving a termination notification for the telephone call from the mobile communication device, disabling at least the audio input path. - View Dependent Claims (8, 9, 10, 11)
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12. An accessory for use with mobile communication device, the accessory comprising:
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a controller configured to communicate capability information for the accessory to the mobile communication device, the capability information indicating that the accessory is operable to provide an input audio signal to the mobile communication device through an audio input path concurrently with receiving an output audio signal from the mobile communication device through an audio output path; an input/output (I/O) interface configured to communicate with the mobile communication device, the I/O interface including the audio-in signal path to send the input audio signal, the audio-out signal path to receive the output audio signal, and a control signal path to receive initiation and termination notifications for telephone calls from the mobile communication device; and an audio processing section coupled to the I/O interface and configured to receive an output audio signal from the mobile communication device on the audio-out signal path and to send the input audio signal to the mobile communication device on the audio-in signal path, wherein the audio processing section is further configured to concurrently enable the audio-in and audio-out signal paths in response to receiving an initiation notification and to disable the audio-in signal path in response to receiving a termination notification. - View Dependent Claims (13, 14, 15, 16)
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Specification