Space diversity receiving system for multi-direction time division multiplex communication
An object of the present invention, therefore, is to provide a superior space diversity receiving system, free from the above-stated disadvantages. Another object is to provide the central station in ... Read More
Inventors: Yamamoto, Kazuhiro;, Assignee: NEC Corporation (Tokyo, JP) |
Noise canceling method and apparatus therefor
It is therefore an object of the present invention to provide a noise canceling method capable of reducing both the converging time and the distortion (residual error) after convergence, and an appara... Read More
Inventors: Ikeda, Shigeji;, Assignee: NEC Corporation (Tokyo, JP) |
Force balance microphone
The present invention is a microphone that applies the principle of negative feedback directly to the diaphragm, greatly reducing the non-linearity of the diaphragm. In a further embodiment, digital n... Read More
Inventors: Edelson, Jonathan Sidney; Ward, Nicholas Paul;, Assignee: Borealis Technical Limited (GI) |
Typewriter carriage actuating mechanism
OF THE PREFERRED FORM OF THE INVENTION Reference character 10 designates generally a portion of the supporting frame structure of a typewriter, the illustrated portion of which is a flat and horizont... Read More
Inventors: Thomson, James E.;, Assignee: Western Stamping Corporation (Jackson, MI) |
Method and apparatus for frequency compensation of electro-mechanical transducer
I claim; 1. In combination with an electro-mechanical transducer having mechanical response parameters of known valve and including current-carrying conductor means in a magnetic field wherein the res... Read More
Inventors: Boast, Warren B.;, Assignee: Iowa State University Research Foundation, Inc. (Ames, IA) |
Earpiece for acoustic headset
What is claimed is: 1. An earpiece for an acoustic headset proportioned for cooperating with the wearer's outer ear at the ear canal, said earpiece comprising a tubular portion having a through passag... Read More
Inventors: Shore, Sidney X.; Martin, Paul S.;, Assignee: |
Shoulder pad
Among the several objects of this invention may be noted the provision of an improved shoulder pad allowing greater mobility of the upper body and particularly the shoulders so that the arms may be ra... Read More
Inventors: Mitchell, Hal D.;, Assignee: A-T-O Inc. (Willoughby, OH) |
Shoulder pad
Among the several objects of this invention may be noted the provision of an improved shoulder pad which allows greater mobility of the upper body of the wearer, particularly the shoulders, so that th... Read More
Inventors: Mitchell, Hal D.;, Assignee: A-T-O Inc. (Willoughby, OH) |
Adjustment of operating characteristics of a telephone transmitter including an electret transducer
What is claimed is: 1. A telephone transmitter including an electret transducer, comprising: a rear housing; a front cover attached to said rear housing and defining therewith a chamber; a printed cir... Read More
Inventors: Greason, William D.; Gumb, Beverley W.; Busche, Alan C.; Foster, Eric;, Assignee: Northern Telecom Limited (Montreal, CA) |
Ear protection and hearing device
In accordance with this invention, an earmuff-type enclosure is fitted with a sound reproducer or earphone. In addition, a microphone is placed on the outside of the device, and its output is supplied... Read More
Inventors: Kyle, Gordon L.; Hays, Jr., John D.;, Assignee: |
Holder for a roller slitting knife
In accordance with the present invention, there is provided a holder for roller slitting knife comprising a first selectively-operable piston assembly including a first piston rod in a first piston cy... Read More
Inventors: Wingen, Peter;, Assignee: Dienes Werke fur Maschinenteile GmbH & Co. KG (Hauptstrabe, DE) |
Apparatus for severing and dedusting webs of paper or the like
I claim: 1. Apparatus for subdividing a running web of paper or the like, comprising means for advancing the web in a predetermined direction along a predetermined path; means for severing the web in ... Read More
Inventors: Huser, Peter;, Assignee: E C.H. Will GmbH (Hamburg, DE) |
Non-contacting radio frequency power coupler for relative linear motion
Accordingly, the present invention provides a noncontacting electrical coupler for connecting a linearly movable radio frequency load or device to a stationary radio frequency power source or device b... Read More
Inventors: Gerrish, Keith Gale;, Assignee: Eastman Kodak Company (Rochester, NY) |
Circular saw blade with saw chain providing cutters
The instant invention relates to circular cutting blades, and particularly to a circular cutting blade which utilizes a chain having cutter links therein serving as cutters in the blade. Circular saw ... Read More
Inventors: Carlton, Raymond R.;, Assignee: |
Method of authenticating a terminal in a transaction execution system
The present invention provides a method of authenticating to a user components of a transaction execution system having a central host in communication with remote terminals which permit the execution... Read More
Inventors: Merritt, Michael J.;, Assignee: AT&T Corp. (Murray Hill, NJ) |
Control voltage generating circuit for activating a noise reduction circuit in an FM stereo receiver
According to the present invention, there is provided a control voltage generating circuit for activating a noise reduction circuit in an FM stereo receiver, comprising: an in-phase amplifier in which... Read More
Inventors: Tazaki, Satoru; Yoshioka, Yasuhiro; Amazawa, Kiyoshi;, Assignee: Clarion Co., Ltd. (Tokyo, JP) |
Circuit arrangement for correcting frequency response in accordance with frequency response of a sound field
The present invention has been developed in order to remove the above-described drawbacks inherent to the conventional circuit arrangement for correcting frequency response of an input audio signal. I... Read More
Inventors: Otsuki, Zenju; Inami, Mamoru;, Assignee: Thomson-Brandt (Paris, FR) |
Audio transducer with controlled flexibility diaphragm
Turning now to the drawings, and particularly to FIGS. 1 through 4, an audio transducer according to the present invention is shown generally at 10. The transducer described herein is intended for us... Read More
Inventors: Paddock, Paul W.; Geist, Steven R.;, Assignee: Linaeum Corporation (Portland, OR) |
Extension cords for plug-in telephones
What is claimed is: 1. An extension cord for plug-in telephones, comprising: a line cord; a plug on one end of said line cord, said plug adapted for insertion in a telephone outlet; a multi-outlet mem... Read More
Inventors: Gumb, Beverly William; Kuhfus, Gerd; Cogan, Frederick Thomas;, Assignee: Northern Telecom Limited (Montreal, CA) |
Modular communications jack lock
OF PREFERRED EMBODIMENT FIG. 1 shows a standard modular socket which is used to connect electronic devices to telephone communication lines. These sockets are both on the equipment and used as wall p... Read More
Inventors: Klein, Edward;, Assignee: |
Reverberation system with extended frequency response
The present invention discloses a system for utilizing a pair of reverberators to extend the frequency range associated with such reverberators to substantially beyond their normal range. The input si... Read More
Inventors: Orban, Robert A.;, Assignee: Kurt Orban Company (Menlo Park, CA) |
Loudspeaker suspension
According to the present invention, the prior art requirement for the spider is overcome. This permits the design of thinner acoustic transducers, in terms of transducer depth, for those installations... Read More
Inventors: House, William N.;, Assignee: Harman International Industries, Incorporated (Northridge, CA) |
One-piece telephone hook switch operating mechanism
According to the invention there is provided a one-piece telephone instrument provided with a hook switch operating mechanism, the mechanism comprising: first and second members each having a respecti... Read More
Inventors: Else, Ronald;, Assignee: British Telecommunications public limited company (GB3) |
Method for preparing color separation printing patterns
The present invention has as its object the provision of a method for preparing color separation printing pattern films from a multi-colored original design in a completely automated process, automati... Read More
Inventors: Akami, Hitoshi; Nishikawa, Shigeru; Ikeda, Toshio; Tsukokura, Akira;, Assignee: Agency of Industrial Science & Technology (Tokyo, JA); Daido-Maruta Finishing Co., Ltd. (BOTH OF, JA) |
Light pen detection for plasma panels using specially timed scanning address pulses
Basic Device Characteristics Before discussing the improvements resulting from the present invention, it is considered advisable to briefly review typical prior art plasma display systems. The above-... Read More
Inventors: Ngo, Peter Dinh-Tuan;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Audio channel separating apparatus
According to the present invention, apparatus is provided for separating two audio signals of varying amplitudes appearing on two input channels into output signals appearing on at least three output ... Read More
Inventors: Boudouris, Angelo; Peters, Edwin F.;, Assignee: Eprad Incorporated (Toledo, OH) |
Method for balancing the sensitivity of two channels in a differential detection apparatus
We claim as our invention: 1. A method for balancing the sensitivity of two channels which process intermittently-appearing pulse waves in a differential detection apparatus, said method comprising fe... Read More
Inventors: Hiroshima, Tatsuo; Hirota, Tetsuya;, Assignee: Sumitomo Metal Industries, Ltd. (Osaka, JP) |
Semiconductor integrated circuit device
What is claimed is: 1. A semiconductor integrated circuit device comprising a power amplifier circuit including a vertical type PNP transistor and a first NPN transistor which are formed in a common s... Read More
Inventors: Sakai, Koichi;, Assignee: Toko, Inc. (Tokyo, JP) |
Field effect transconductance amplifiers
Field Effect Transconductance Amplifiers having improved linearity and noise rejection characteristics to provide an amplifier output having excellent temporal coherence with the input signal are disc... Read More
Inventors: Knapp, Richard P.;, Assignee: Kavanau; Lawrence (Long Beach, CA) |
UHF antenna amplifier having planar transformers
The amplifier of the present invention is constructed on a printed circuit board made of glass/epoxy with a G-10 rating upon which a portion of the circuity is made an integral part of the circuit boa... Read More
Inventors: Russo, Richard;, Assignee: Eichelberger; Fred S. (White Hall, MD) |
Audio Signal Processing 
