Patent ID: 11924605
Assignee: SONOS, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A playback device comprising:
an elongated body defining an outer perimeter that includes a forward surface, an upper surface, and a rounded edge between the forward surface and the upper surface;
at least one forward-firing transducer configured to direct sound along a first axis substantially orthogonal to the forward surface;
an up-firing transducer configured to direct sound along a second axis that has a vertical oblique angle with respect to the first axis; and
a waveguide in fluid communication with the up-firing transducer, the waveguide comprising:
a sidewall extending circumferentially around the up-firing transducer, the sidewall having a first end adjacent the up-firing transducer and a second end adjacent the outer perimeter; and
an opening defined by the sidewall, the opening having a larger area at the second end than at the first end;
wherein a rear portion of the sidewall is more steeply angled with respect to the second axis than a forward portion of the sidewall, and wherein the up-firing transducer and the waveguide are each configured such that, during playback of audio at 2000 Hz via the up-firing transducer, a ratio of acoustic energy along the first axis to acoustic energy along the second axis is −10 dB or less.