Work-clamping unit for use in machine tools
OF THE INVENTION Referring to FIGS. 1 and 2, a drilling machine (M) includes a horizontal table 1 on which a clamp unit (C) is mounted. The clamp unit (C) has a flat top surface 2 on which a work (W)... Read More
Inventors: Kitaura, Ichiro;, Assignee: AIOI Seiki Kabushiki Kaisha (JP) |
Method of transfer function generation and active noise cancellation in a vibrating system
I claim: 1. A method for the active cancellation of an incident vibration field (N(i.omega.)) comprising the steps of: (i) superposing a cancelling vibration field (C(i.omega.)) on the incident field ... Read More
Inventors: Taylor, Brian A.;, Assignee: |
Method and apparatus for monitoring a pulse-code modulated data transmission
OF THE DRAWINGS The invention will now be described, by way of example, with reference to FIGS. 1 and 2. The pulse code modulated message T (FIG. 1(c)), which arrives distorted due to interference, i... Read More
Inventors: Funk, Gerhard;, Assignee: Patelhold Patentverwertungs- & Electro-Holding AG (Glarus, CH) |
Field programmable gate arrays
Particular and preferred aspects of the invention are set out in the accompanying independent and dependent claims. Features of the dependent claims may be combined with those of the independent claim... Read More
Inventors: Garnett, Paul Jeffrey;, Assignee: Sun Microsystems, Inc. (Palo Alto, CA) |
Pseudorandom noise code generator
In order to attain the object, an inventive pseudorandom noise code generator is characterized in the use of a simple type or modular type shift register generator; exclusive logic sum gates at respec... Read More
Inventors: Harada, Masaaki;, Assignee: Clarion Co., Ltd. (Tokyo, JP) |
Ergonomic telephone handset
Referring to the figures, the speak portion 1 and microphone portion 2 are connected by a handle 3 of substantially J or V configuration. A grip portion 4 is provided along the handle for holding of ... Read More
Inventors: Marks, Peter J.;, Assignee: |
Calcium aluminate cement
It has now been found, according to this invention, that an improved refractory calcium aluminate cement can be made by admixing (a) from 40 to 60% by weight of a clinker at least 80% by weight of whi... Read More
Inventors: Masaryk, Joseph S.;, Assignee: Kaiser Aluminum & Chemical Corporation (Oakland, CA) |
Mode-locked cavity-dumped laser
We claim: 1. Apparatus for producing uniform light pulses comprising: source means for providing coherent light pulses at a constant repetition rate along a first light path; deflection means for dive... Read More
Inventors: Johnson, Richard Howard; Young, Jr., Eddie Hung Chung; Burr, Charles Raymond; Montgomery, Robert Morris;, Assignee: Harris-Intertype Corporation (Cleveland, OH) |
Higher power semiconductor radiating mirror laser
Referring now specifically to FIG. 1, there is shown an active element 10 of the type preferrably used in a radiating mirror laser embodying the invention. The element 10 is fabricated from an alloy ... Read More
Inventors: Butler, Jack F.; Nill, Kenneth W.;, Assignee: Laser Analytics, Inc. (Bedford, MA) |
Electrode holder for electric arc furnaces
OF THE DRAWINGS FIG. 1 is a schematic illustration of the basic structure of a combination electrode for electric arc furnaces. This electrode comprises an electrode holder that is formed by a cooled... Read More
Inventors: Zollner, Dieter; Lauterbach-Dammler, Inge; Rittman, Friedrich; Schieber, Franz;, Assignee: Arc Technologies Systems, Ltd. (KY) |
Convertible ladder
I claim: 1. A convertible ladder comprising two leg assemblies each comprising a pair of sides joined by a plurality of rungs, pairs of regularly spaced hooks on each leg assembly the length thereof, ... Read More
Inventors: Owen, Graham;, Assignee: |
Application specific integrated circuit for a serial data bus
FIG. 1 of the drawings illustrates a plurality of data communication devices, designated generally as 10, 10' . . . 10.sup.n, located on a serial data bus 12 of a data communication system, designate... Read More
Inventors: Donovan, Paul M.; Caruso, Michael P.;, Assignee: Apple Computer, Inc. (Cupertino, CA) |
Correlated active attenuation system with error and correction signal input
Prior Art FIG. 1 shows an active acoustic attenuation system in accordance with incorporated U.S. Pat. Nos. 4,677,676 and 4,677,677 at FIG. 5, and like reference numerals are used from said patents w... Read More
Inventors: Eriksson, Larry J.; Allie, Mark C.;, Assignee: Nelson Industries, Inc. (Stoughton, WI) |
Active adaptive control system with weight update selective leakage
FIG. 1 shows an active adaptive control system similar to that shown in U.S. Pat. No. 4,677,676, incorporated herein by reference, and uses like reference numerals therefrom where appropriate to faci... Read More
Inventors: Trantow, Jerry J.; Finn, Brian M.;, Assignee: Digisonix, Inc. (Middleton, WI) |
Rack assembly for plug-in modules
A rack assembly for mounting one or more plug-in type electronic/eletrical modules, such as avionic equipment, is disclosed. The rack assembly provides mechanical isolation to the modules thereby prot... Read More
Inventors: Espinoza, H. Cesar;, Assignee: Hollingsead International, Inc. (Santa Fe Springs, CA) |
Electronic module RFI/EMI shielding
Wherefore, having described our the method of the present invention, what is claimed is: 1. The method of RFI/EMI shielding an individual module of an electronic assembly comprising the steps of: (a) ... Read More
Inventors: Samarov, Victor M.; Doumani, Jr., George A.; Becker, Philip F.;, Assignee: Digital Equipment Corporation (Maynard, MA) |
Apparatus for detecting optically defects
The present invention has for its object to provide a novel and useful apparatus for detecting optically defects in objects with a very high accuracy by means of an objective lens which can be designe... Read More
Inventors: Kato, Kiichi; Sakamoto, Masaharu; Yoshikawa, Shoji; Yamamiya, Kunio; Kodama, Hiroshi; Ohsima, Ken;, Assignee: Olympus Optical Co., Ltd. (JP) |
Apparatus for determining the density of unoccupied electronic states of a material
The present invention relates to an apparatus which obviates these disadvantages and in particular makes it possible to work in a wide wavelength range. The apparatus according to the invention in par... Read More
Inventors: Baptist, Robert; Chauvet, Gerard;, Assignee: Commissariat a l'Energie Atomique (Paris, FR) |
Device for reading a sensor matrix
I claim: 1. A device for reading charges of a plurality of radiation sensitive sensor elements arranged in rows and columns of a matrix comprising: a plurality of said sensor elements in said matrix, ... Read More
Inventors: Wieczorek, Herfried;, Assignee: U.S. Philips Corporation (New York, NY) |
Package for push-pull semiconductor devices
OF THE INVENTION Referring now to FIG. 1 the transistor package is comprised of a ceramic wafer 10 upon which discrete metallized areas or pads are plated in accordance with known metallization techn... Read More
Inventors: Max, Lee B.;, Assignee: Varian Associates, Inc. (Palo Alto, CA) |
Ear receiver
In accordance with one aspect of the present invention an apparatus is provided for positioning a transducer in close proximity to the human ear. The transducer is of the type which produces audible s... Read More
Inventors: Peters, Jean M.; Graham, Bruce L.; Staehle, Eric O.; Budzynski, Terrence M.; Dinello, Robert G.;, Assignee: Otto Engineering, Inc. (Carpentersville, IL) |
Electrical connector
I claim: 1. A distributing station for an audio device whereby the signal coming from the audio device (20) can be fed to a plurality of listening devices, such as head sets, (17) by detachably connec... Read More
Inventors: Martin, Roger A.;, Assignee: The Murdock Corporation (Chelsea, MA) |
Method of making a telephone headset
OF THE BEST MODE OF THE INVENTION The headset of the present invention is shown in an overview in FIGS. 1-3. A headband 100 resiliently joins a pair of earphones 300. Each earphone 300 includes a hou... Read More
Inventors: Sacherman, Jim; Toor, John;, Assignee: Hello Direct (San Jose, CA) |
Super directional beamforming design and implementation
The following description will be divided into four parts. Part one will detail a method for designing and implementing fixed beam optimal filters based on the filtered input approach. Part two will ... Read More
Inventors: Marash, Joseph; Berdugo, Baruch;, Assignee: Andrea Electronics Corporation (Melville, NY) |
Telephone transducer with improved frequency response
It is an object of this invention, therefore, to obtain maximum sound quality from a transducer which is thin and is positioned in a very thin enclosure. This and other objects which will become appar... Read More
Inventors: Weber, Paul J.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Driving control device for vibration wave motor
An object of the present invention is to restore ultrasonic motor which has gone into an vibration diversion state to a normal vibration state speedily and easily without releasing the load. Another o... Read More
Inventors: Suganuma, Ryoichi;, Assignee: Nikon Corporation (Tokyo, JP) |
Loudspeaker structure
According to the invention, a loudspeaker comprises a motor stator providing an air gap, a voice coil, a support for supporting the voice coil in the air gap, a diaphragm coupled to the voice coil for... Read More
Inventors: Stewart, John Sloan;, Assignee: Harman International Industries, Incorporated (Northridge, CA) |
Audio reproducing apparatus
In accordance with the above, the present invention is intended to prevent lack of low frequency sound to be obtained from an audio signal representing a component in a low frequency range when multic... Read More
Inventors: Masuda, Hiroshi;, Assignee: Sony Corporation (Tokyo, JP) |
Active headset
It is an object of the invention to provide an active headset that can cancel external noise in both the higher and lower frequency ranges. It is another object of the invention to provide an active h... Read More
Inventors: Jones, Owen;, Assignee: Noise Cancellation Technologies, Inc. (Linthicum, MD) |
Threshold gate having a variable threshold level
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A threshold gate circuit comprising a signal comparator means for comparing the ampli... Read More
Inventors: Hutch, Frederick S.;, Assignee: Honeywell Inc. (Minneapolis, MN) |
Audio Signal Processing 
