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:
Jan. 30, 1990
Filed:
Sep. 23, 1988
Ronald J Geluk, Nootdorp, NL;
B & W Loudspeakers Limited, West Sussex, GB;
Abstract
A multi-way loudspeaker system comprising at least two series connected loudspeakers (Z.sub.H, Z.sub.L) connected to a common signal input (1, 2) for reproducing different parts of the full frequency spectrum of an audio signal applied to the signal input and being provided with a passive dividing network including a first impedance (Z.sub.1) connected in parallel to a first loudspeaker (Z.sub.H) for reproducing a first part of the audio-frequency spectrum and a second impedance (Z.sub.2) connected in parallel to a second loudspeaker (Z.sub.L) for reproducing a second part of the audio-frequency spectrum. The loudspeaker system is provided with a compensating circuit consisting of a transformer (T) and an impedance (Z.sub.N) connected in series with the primary winding and/or the secondary winding of the transformer for compensating the current flowing through one loudspeaker of the system and being fed thereto through the loudspeaker(s) being connected in series therewith so as to increase the slope of the attenuation characteristic of one section of the dividing network from its normal value of 6dB per octave to a value of 12dB per octave.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile