The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1981
Filed:
Jun. 05, 1979
Roger H Russell, Binghamton, NY (US);
McIntosh Laboratory, Inc., Binghamton, NY (US);
Abstract
A stereo speaker system adapted for home use is arranged to increase stereo image perception by reducing spurious and confusing sound images. The speaker system includes a pair of low frequency speaker assemblies and a pair of high frequency speaker assemblies. The pair of low frequency speaker assemblies can be constructed along conventional lines although a columnar arrangement of speakers or acoustic transducers is preferred and preferably arranged to handle acoustic energy in a frequency range below 1000 Hz. The remaining portion of the speaker system includes a pair of high frequency speaker assemblies. Each assembly consists of a single column arrangement of a plurality of acoustic transducers or speakers; in one preferred embodiment, 24 high frequency speakers are included. The speakers are mounted in a column with minimum spacing between them; the number of speakers is chosen so that the column will extend substantially between floor and ceiling, with appropriate allowance for pre-existing structures such as baseboards, moldings or baseboard heating apparatus. The column of high frequency speakers is arranged to emit acoustic energy only in a forward direction so as to disperse acoustic energy as a cylindrical wavefront. At the same time, the acoustic energy emitting surfaces of a column of speakers is mounted as closely as possible to a supporting parallel surface such as a wall.