Loudspeaker system with improved lc crossover network
CA 1111775 A · Owner: Klipsch And Associates, Inc. · Inventors: Klipsch, Paul W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A loudspeaker system including a low frequency loudspeaker as well as midrange and high frequency loudspeakers and an LC crossover network, is disclosed. The LC crossover network includes an auto-transformer which not only serves as a component to determine a crossover freqeuncy but which also boosts the electrical signal that is input to the electroacoustic transducer of a less efficient loudspeaker. The autotransformer increases the output of the less efficient loudspeaker and accommodates its use with more efficient loudspeakers so that the overall loudspeaker system operates at optimum efficiency. An illustrative embodiment of the loudspeaker system affords 108 dB SPL output at one …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.