Systems, methods, and devices for enforcing do not disturb functionality on mobile devices
摘要
說明書
Again, the actual processing of the recorded audio could be performed locally or in the cloud. Utilizing this procedure, the frequencies could be broadcast in short duration bursts or played continuously into the cabin of the vehicle. The exact quadrant could again be determined by utilizing multiple speakers. However, this procedure could work using just two speakers or four speakers—in a manner as described above—with each speaker broadcasting at its predetermined and pre-set frequency. Each (or all) speakers could be continuously playing their tone or alternating each tone with periods of silence. The mobile devices within the vehicle can then compare the relative amplitude of each of the speakers to determine approximate location within the vehicle. It should be noted that the tone does not have to be played continuously, it can be played in short duration bursts, continuously, long bursts, or any combination thereof. It should also be noted that the use of signals out of each speaker in this embodiment could be any combination of frequency—both audible and in-audible tones could be used. To account for various frequency responses of the speakers and/or receiving mobile devices, the power at which each speaker is playing may be varied to account for the frequency response. The particular frequencies chosen will depend on several factors. For example, high noise and/or low fidelity environments will benefit from wider separation between the frequencies of the different speakers. In addition, wider separation of the frequencies can reduce the calculation load of the DSP performed, which may be beneficial for some handsets or mobile devices.
