Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Audio Signal Processing Resistively-damped-loudspeaker-system

 Electroacoustic piezoelectric transducers
We claim: 1. An electroacoustic piezoelectric transducer including a mechanically stretched ...


 Stereoscopic video display system
Accordingly, it is a general object of this invention to provide an improved stereoscopic video ...


 Endoscope automatic light control apparatus and endoscope apparatus making use of the same
An object of the present invention is to provide an endoscope automatic light control apparatus ...


 Lockable cover for push button telephones
What I claim as new and desire to secure by Letters Patent is: 1. A lockable cover device for push ...


 Fragrance device
Accordingly, it is an object of this invention to provide an improved, battery operated fragrance ...


 Earphone
The present invention provides an earphone including a speaker unit and a case in which the speaker ...


 Piezoelectric polymeric film balloon speaker
Underwater acoustic transducers employing polymeric piezoelectric film materials are known. In B...


 Piezoelectric saddle for musical instruments and method of making same
It is therefore an object of the present invention to provide for a novel and improved ...


 Ultrasonic transmitting and receiving device
We claim: 1. An ultrasonic transmitting and receiving device comprising: a plurality of terminals ...


 Musical instrument transducer
To accomplish the foregoing and other objects, features and advantages of the invention, there is ...


 Resistively damped loudspeaker system

Details
Inventors: Watkins, William H.;
Assignee:
Primary Examiner: Rubinson; G. Z.
Assistant Examiner: George; Keith E.
Attorney, Agent or Firm: Larson and Taylor

A loudspeaker system is provided wherein the coils, capacitors, and loudspeaker drive units and combinations thereof are resistively damped to provide electrical damping of the back EMF of these components and thereby reduce ringing in the loudspeaker crossover networks. The result is a measurable and clearly audible improvement in the accuracy of the sound produced by the loudspeaker system.

DETAILED DESCRIPTION In accordance with the invention, provision is made for electrical damping of the coils, capacitors and loudspeaker drive units of loudspeaker systems and more particularly, for resistive damping of the back EMF of such coils, capacitors, drive units and combinations thereof, so as to reduce the ringing voltage in the loudspeaker crossover networks.
The invention reduces system ringing and provides a loudspeaker output which is significantly more accurate, i.
e.
, which more closely resembles the electrical input to the loudspeaker system, than is provided by such systems without this damping.
These benefits and results are measurable and can be demonstrated, and in particular, are quite audible in the output sound produced by the loudspeaker system--the sound being cleaner and more natural.
The resistive damping of the invention is provided by damping resistors which are connected in shunt with the capacitors, coils and drive units of the loudspeaker system and with combinations thereof, e.
g.
, with parallel combinations of capacitors and coils.
It is important to note that these damping resistors are not frequency shapers and, in fact, are not required to shape frequency in the use thereof here.
Other features and advantages of the invention will be set forth in, or apparent from, the detailed description of the preferred embodiments which follows.



Related patents
  Audio system with amplifier and signal device
The present invention provides a sound system which is particularly adapted for use with such an unperforated movie screen. The system includes a bass speaker unit and a ...
  Correction circuit and method for improving the transient behavior of a two-way loudspeaker system
OF THE ILLUSTRATED EMBODIMENT Described herein are the transducers, correction circuits, a crossover circuit and cabinet geometry for a multi-way loudspeaker system; ...
  Loudspeaker system
These and additional objects are accomplished by improvements in a loudspeaker system employing transmission-line concepts. According to one aspect of the invention, the ...
  Correction circuit and method for improving the transient behavior of a two-way loudspeaker system
OF THE ILLUSTRATED EMBODIMENT Described herein are the transducers, correction circuits, a crossover circuit and cabinet geometry for a multi-way loudspeaker system; ...
  Hanging, positionable, speaker enclosure
OF THE INVENTION The above described drawing figure illustrates the invention, an enclosed audio device for cooperative mounting to a ceiling structure 10 in a ...
  Digital duplex transmission system
We claim: 1. A digital duplex transmission system comprising: two terminals interconnected by a 2-wire transmission line; first means disposed in one of said terminals ...
  Extended response dynamic noise reduction system
The block diagram of the preferred dynamic noise reduction system is illustrated in FIG. 1. The system includes an input buffer 10 through which the input signal E.sub.I...
  Distortion-cancellation circuit for audio peak limiting
I claim: 1. In an audio peak limiting apparatus, an improvement for reducing distortion comprising: a clipper coupled to receive an input audio signal; a differencing ...
  Level control circuit for low and medium sound
It is an object of the present invention to provide a level control circuit for low and medium sound which detects a peak value of a low and medium sound signal and ...
  Multi-signal processor synchronized system
We claim: 1. A multiprocessor system comprising: a plurality of signal processors each adapted to perform at least part of a signal processing operation for one of a ...

0.014

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved