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Apparatus for sensing current transformer primary current as a function of differential core inductance
The circuit embodiment of the present invention illustrated in FIG. 1 is implemented with a current transformer, specifically a differential current transformer, ...
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Water-resistant device for protecting an electronic sound producing apparatus and loudspeaker system
The water resistant device of the present invention is defined by the appended claims with a specific embodiment shown in the attached drawings. For the purpose of ...
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Telephone base members and support members
Accordingly, the present invention provides a telephone base member and a base support member combination comprising: a telephone base member and two base support ...
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Alignment device for electro-acoustical transducers
A primary object of the subject invention is to provide new and improved electro-acoustical transducers. Another object is to provide a loudspeaker capable of longer ...
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Self-cooled loudspeaker
OF THE PRESENT INVENTION The present invention is directed to an electrodynamic loudspeaker which is self-cooled without the use of external blowers or other such ...
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Self-cooled loudspeaker
It is an object of the present invention to provide a new and improved loudspeaker. It is another object of the present invention to provide a loudspeaker which utilizes ...
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Audio voice coil adaptor ring
OF THE INVENTION With reference to the drawings, FIGS. 2a-12 depict the various embodiments of the voice coil adaptor ring and loudspeaker system 10 incorporating the ...
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Ceramic metal matrix diaphragm for loudspeakers
Thus, the present invention relates to a material that is formed of a matrix, or layers, of a light metal such as aluminum, sandwiched between two ceramic layers, ...
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Contra-rotating homopolar motor-generator for energy storage and return
An apparatus for receiving electric energy, storing it as rotating mechanical energy and converting it to electrical energy with magnitudes of the order of 1000 ...
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Complex signal generation and transmission
These and other objects of the present invention are achieved by an apparatus which stores in a first digital memory a plurality of amplitude samples of single frequency ...
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