Speaker system
OwnerB. Keith Peterinventor
Life of this patent
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Abstract
An improved, compact speaker system for production of the full range of sound audible to the human ear, the sound radiating from the speaker being omnidirectional with the speaker including an outer cabinet shell and a defined chamber configuration within the shell. High and low frequency speakers are mounted within the cabinet shell with an acoustical path being defined within the cabinet for the low frequency wavelengths with the low frequency tones traveling within the cabinet for a distance of 1/12 the wavelength of the natural free air resonance of the low frequency speaker. The high frequency speaker having a slug of pre-determined surface configuration to permit omnidirectional sound radiation without distortion.
Claims5
An omnidirectional loudspeaker system comprising an enclosure having sound impermeable walls defining a path for the transmission of sound, said enclosure having a first wall at one end of the path provided with a first opening therein, said enclosure having a second wall at the other end of the path with a second opening therein, a speaker mounted on the first wall of the enclosure, said speaker having a cone shaped diaphragm acoustically sealed at its periphery about the first opening, said speaker having natural free air resonance producing sound waves having a wavelength twelve times the length of the path from the first opening to the second opening, and a mass of sound absorbing material disposed within and extending across the path.
Dependencies are inferred from the claim text.