| 摘要 |
A directional speaker for an electronic device having audio output capabilities is disclosed. The directional speaker can thus be used with the electronic device to direct audio output in a directionally constrained manner. As a result, a certain degree of privacy with respect to the audio output is achieved for the user of the electronic device, yet the user need not wear a headset or ear phone, or have to hold a speaker against one's ear. The directional speaker can be integral with the electronic device. Alternatively, the directional speaker can be an attachment (or peripheral) to the electronic device.
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