Permanent magnet system with associated coil arrangement
The present invention relates to a permanent magnet system with associated coil arrangement that has two axially polarized permanent magnet rings which are mounted one behind another in the axial dire... Read More
Inventors: Ziegenberg, Alfred; Schiessle, Edmund;, Assignee: Mercedes-Benz AG (DE) |
Figure toy having tuned sound producers and indicia
It is an object of the present invention to provide a new and useful figure toy having tuned sound producers and indicia. It is another object of the present invention to provide a figure toy which in... Read More
Inventors: Favilli, Riccardo Aldo; Lewis, J. Stephen; Ratcliffe, Alfonso Fred;, Assignee: Mattel, Inc. (Hawthorne, CA) |
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, generally indicated at 10, having uti... Read More
Inventors: Tompkins, Russell E.; Walden, John P.; Walker, Loren H.;, Assignee: General Electric Company (New York, NY) |
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 summarizing the invention, the inven... Read More
Inventors: DeLage, Frank;, Assignee: |
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 members; the base member having a sup... Read More
Inventors: Gumb, Beverley W.; Foster, Edward J. R.;, Assignee: Northern Telecom Limited (Montreal, CA) |
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 axial excursions so as to generate... Read More
Inventors: Schwartz, Leslie H.;, Assignee: |
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 structures. Any conventional electro... Read More
Inventors: Button, Douglas J.;, Assignee: Harman International Industries, Inc. (Northridge, CA) |
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 air flow to prevent significan... Read More
Inventors: Yamamoto, Shuji; Plourde, Richard G.;, Assignee: |
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 adaptor ring, in accordance with... Read More
Inventors: Proni, Lucio;, Assignee: |
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, preferably aluminum oxide (Al.sub.2 O... Read More
Inventors: Devantier, Allan O.; Nguyen, An D.;, Assignee: Harman International Industries Incorporated (Northridge, CA) |
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 megajoules cycled in one second compris... Read More
Inventors: Kustom, Robert L.; Wehrle, Robert B.;, Assignee: The United States of America as represented by the United States (Washington, DC) |
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 and multi-frequency signalling... Read More
Inventors: Elder, J. Mark; Ruether, Peter G.;, Assignee: Storage Technology Corporation (Louisville, CO) |
Numerical control device
Accordingly, an object of the present invention is to provide a numerical control device in which numerical control information can be created and entered in simple and rapid fashion. Another object o... Read More
Inventors: Kishi, Hajimu; Seki, Masaki; Tanaka, Kunio; Takegahara, Takashi;, Assignee: Fanuc Ltd. (Minamitsuru, JP) |
Program reviewing device in numerical control processing apparatus
It is an object of the present invention to provide a program reviewing device in a numerical control processing apparatus which requires no special automatic programming device and which can easily f... Read More
Inventors: Miyamoto, Takami;, Assignee: Murata Kikai Kabushiki Kaisha (Kyoto, JP) |
Numerical control apparatus for a machine tool
In view of the foregoing, it is an object of the present invention to provide a NC apparatus for the machine tool capable of automatically determining tools and machining conditions by taking the know... Read More
Inventors: Ouchi, Sadami; Kamiya, Takashi; Noda, Akio; Tsujido, Yoshinori;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Electric discharge machine including means for detecting abnormal discharge conditions
An object of the present invention is to provide, in light of the aforementioned problems, an electric discharge machine capable of determining whether an interpole gap is in a normal or abnormal cond... Read More
Inventors: Itoh, Tetsuroh;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Jump control system for an electric discharge machine
I claim: 1. A jump control system for an electric discharge machine having a discharge state, comprising: first control means for performing fuzzy control to set a jump period and a jump distance to o... Read More
Inventors: Kawamura, Hideaki;, Assignee: Fanuc Ltd. (Minamitsuru, JP) |
Process and apparatus for electric discharge position detection
The present invention seeks to provide a technique for detecting the position of generated electric discharge irrespective of the pulse length or the electrode material. In addition, the invention see... Read More
Inventors: Mohri, Naotake; Moronuki, Hideo;, Assignee: Toyota Jidosha Kabushiki Kaisha (Aichi, JP) |
Frequency response equalizing network for an electrostatic loudspeaker
OF THE INVENTION FIG. 1a illustrates quite schematically an electrostatic loudspeaker system comprising a diaphragm 3, polarisable through bias terminals 1, 2 and arranged between two perforated, ele... Read More
Inventors: Peters, Bernardus G.;, Assignee: |
Method of effecting communications using common cryptokey
It is therefore an object of the present invention to provide a method of effecting cryptographic communications using a common cryptokey in a cryptosystem while increasing the security of the cryptok... Read More
Inventors: Baba, Yoshimi;, Assignee: Card Call Service Co., Ltd. (Tokyo, JP) |
Fastening straps and articles employing fastening straps
To achieve these objects, the invention provides a fastener comprising an elongated flat connecting piece with an integrally incorporated buckle element. A securing peg is mounted on the buckle elemen... Read More
Inventors: Birkenstock, Karl;, Assignee: |
Automatic tone control for stringed musical instruments
OF THE PREFERRED EMBODIMENTS With reference to the Drawing, and initially to FIG. 1, an automatic string tension control arrangement 10 is illustrated in connection with one end of a vibrating musica... Read More
Inventors: Zacaroli, Edward C.;, Assignee: |
OPTICAL DISK, AN OPTICAL DISK BARCODE FORMING METHOD, AN OPTICAL DISK REPRODUCTION APPARATUS, A MARKING FORMING APPARATUS, A METHOD OF FORMING A LASER MARKING ON AN OPTICAL DISK, AND A METHOD OF MANUFACTURING AN OPTICAL DISK
In view of the above problem with the prior art, it is an object of the present invention to provide an optical disk wherein data such as a disk ID number, etc. is converted into a barcode and recorde... Read More
Inventors: Gotoh, Yoshiho; Oshima, Mitsuaki; Tanaka, Shinichi; Koishi, Kenji; Moriya, Mitsuro;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
System for identifying authenticating and tracking manufactured articles
This invention overcomes the disadvantages of the prior art by providing a system for identifying, authenticating and tracking articles of manufacture or manufactured goods throughout their manufactur... Read More
Inventors: Berson, William;, Assignee: Pitney Bowes Inc. (Stamford, CT) |
Active control apparatus using adaptive digital filter
It is therefore one object of the invention to achieve stable filter coefficient updating in an active control apparatus using an adaptive digital filter. Another object of the invention is to perform... Read More
Inventors: Eguchi, Masaki; Saitoh, Jun; Iida, Hiroyuki; Hiyoshi, Kozo;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Reduction of computational burden of adaptively updating control filter(s) in active systems
The present invention provides the method and apparatus for reducing the computational burden required to update control filters in an active control system by reducing the size of the filter models t... Read More
Inventors: Southward, Steve C.; Miller, Lane R.;, Assignee: Lord Corporation (Cary, NC) |
Acoustic conditioner
The present invention is a device which functions to condition acoustical energy brought to bear upon the ear of a user of the device. The device includes circuitry for implementing a mode of electron... Read More
Inventors: Preves, David A.; Millier, Robert L.; Hagen, Lawrence T.; Shen, Ning;, Assignee: Micro Ear Technology, Inc. (Plymouth, MN) |
Audio amplifier arrangement having a volume dependent tone control
OF THE PREFERRED EMBODIMENTS The invention will be further described with reference to FIGS. 2 and 3. The previously mentioned embodiments can be recognized in the embodiment of FIG. 3. FIG. 2 shows ... Read More
Inventors: Beijer, Paul A. C.;, Assignee: U.S. Philips Corporation (New York, NY) |
Digital audio limiter
We claim: 1. A signal processing system comprising a perceptual encoder responsive to an input audio signal limited to a first peak amplitude, a perceptual decoder responsive to said perceptual encode... Read More
Inventors: Fielder, Louis D.; Bosi-Goldberg, Marina; Davidson, Grant A.; Gundry, Kenneth J.;, Assignee: Dolby Laboratories Licensing Corporation (San Francisco, CA) |
Method and apparatus for independent gain control of a microphone and speaker for a speakerphone mode and a non-speakerphone audio mode of a computer system
Briefly, the present invention provides a method and apparatus for controlling acoustic gain during a non-speakerphone audio mode of a computer system independent of acoustic gain during a speakerphon... Read More
Inventors: Markow, Mitchell A.; Ford, Jeremy; Gong, Ji-An;, Assignee: Compaq Computer Corporation (Houston, TX) |
Audio Signal Processing 
