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Detecting audio paths between mobile devices and external devices

A technology of audio and audio signals, which is applied in the field of detecting connectivity between devices, and can solve problems such as users not using earphones

Pending Publication Date: 2021-02-05
GOOGLE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a smartphone with an audio jack can detect that headphones are currently plugged in, but the user may not be using headphones

Method used

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  • Detecting audio paths between mobile devices and external devices
  • Detecting audio paths between mobile devices and external devices
  • Detecting audio paths between mobile devices and external devices

Examples

Experimental program
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Embodiment Construction

[0015] figure 1 An example operating system is shown in which the portable device 10 can determine whether the audio path between the portable device 10 and the head unit 12 is operational. Portable device 10 may be communicatively coupled to head unit 12 via a wired or wireless short-range communication link 14 . The portable device 10 may be, for example, a smart phone, a tablet computer, a wearable device such as a smart watch, or the like.

[0016] Portable device 10 may generate audio signals using audio hardware 16A and send the audio signals to head unit 12 via short-range communication interface 18A in digital or analog format. As discussed in more detail below, audio signals may include frequencies within the audible range, outside the audible range, or both. Head unit 12 may receive audio signals via short-range communication interface 18B and convert the audio signals to sound via audio hardware 16B and one or more speakers 20B. Audio hardware 16A and 16B may inc...

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PUM

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Abstract

Providing navigation instructions in an automotive environment includes generating, at the portable device, a test audio signal. The test audio signal is provided to the head unit of the vehicle via ashort-range communication link. The portable device then detects whether the test audio signal has been converted to sound by one or more speakers in the head unit of the vehicle. In response to detecting the audio signal at the portable device, a vocalized navigation instruction is directed to the head unit for announcement via the one or more speakers of the head unit. Otherwise, in response tonot detecting the test audio signal at the portable device, the vocalized navigation instruction is provided via a speaker of the portable device.

Description

technical field [0001] The present disclosure relates to detecting connectivity between devices, and in particular, to detecting an audio path between a mobile device and an external device. Background technique [0002] Today, many communication protocols and standards allow electronic devices to couple to and direct video and / or audio output to external devices. For example, smartphones can communicate via Bluetooth-compliant TM A standard wireless personal area network (WPAN) connects to an external speaker and plays audio through the external speaker instead of the speaker embedded in the smartphone. In many cases, when an electronic device detects a connection to an external device at the physical layer (PHY), the electronic device treats the external device as the default path for output and automatically sends all Audio is directed to external devices. [0003] However, a connection at the PHY layer does not always mean that the external device reproduces the porta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/60H04M1/24G01C21/36
CPCG01C21/3629H04M1/24H04M1/6016H04M1/6091H04R29/00H04R2420/05H04R2420/07H04R2499/13
Inventor G.迪萨特尼克S.沙尔蒂尔
Owner GOOGLE LLC