Phased digital filtering in multichannel environment
A specimen, such as automobile, being subjected to simulated road conditions, is mounted at its wheels or wheel spindles on supports through which multidirectional motion is applied to the vehicle. Th... Read More
Inventors: Thoen, Bradford K.;, Assignee: MTS Systems Corporation (Minneapolis, MN) |
Audio mixing console
The audio mixing console achieving the above described object of the invention comprises, operators which can be driven both manually and by a motor, function selection means for selecting one of a fa... Read More
Inventors: Suzuki, Takashi;, Assignee: Yamahan Corporation (Hamamatsu, JP) |
Electro-mechanical transduction apparatus
To accomplish the foregoing and other objects, features and advantages of the invention there is now described herein an improved electro-mechanical transduction apparatus primarily embodied herein as... Read More
Inventors: Butler, John L.;, Assignee: Image Acoustics, Inc. (North Marshfield, MA) |
Flextensional metal-ceramic composite transducer
OF THE INVENTION Referring to FIG. 1, a first embodiment of the transducer of the invention includes a piezoelectric or electrostrictive ceramic annulus 10 with conductive electrodes bonded 12 and 14... Read More
Inventors: Newnham, Robert E.; Zhang, Jindong;, Assignee: The Penn State Research Foundation (University Park, PA) |
Electroacoustic transducers comprising vibrating panels
OF THE INVENTION Referring to FIGS. 1 and 2, the first embodiment of electro-acoustic transducer in the form of a loudspeaker comprises a rectangular frame 10 which is fixed to a rectangular back pan... Read More
Inventors: Davis, Gillian Margaret; Lundie, Thomas; McDonald, Anthony Malcolm;, Assignee: NCT Group, Inc. (Linthicum, MD) |
Video data transmitting system
It is an object of the present invention to solve the problems mentioned above. Another object of the invention is to provide a data transmitting system which can transmit a good image and can easily ... Read More
Inventors: Tanaka, Mitsugu; Aoki, Akio;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Electroacoustic network
I claim: 1. A co-axial pair of high and low frequency electroacoustic drivers wherein the high frequency driver is mounted in front of the low frequency driver, a cross-over filter network connected i... Read More
Inventors: Eberbach, Steven J.;, Assignee: |
Muffler mechanism for a piano
It is the object of the present invention to provide a muffler mechanism of a simple construction and requiring reduced space for mounting without impairing its damping effect. In accordance with the ... Read More
Inventors: Takahashi, Horoyoshi;, Assignee: Nippon Gakki Seizo Kabushiki Kaisha (JP) |
Opto-electronic sensing method and device for an acoustic piano
It is, therefore, a principal object of the present invention to provide for a displacement or displacement speed sensing device for a movable element in an acoustic piano, wherein the sensing device ... Read More
Inventors: Starkey, David T.; Williams, Anthony G.;, Assignee: Gulbransen, Inc. (San Diego, CA) |
Interface for coupling audio and video equipment to computer
OF THE INVENTION FIG. 3 illustrates the basic concept of the present invention. A personal computer 20, for example an Apple MacIntosh, includes a central processing unit and a memory, collectively s... Read More
Inventors: Abbate, Mark P.;, Assignee: |
Electromagnetic shutter
I claim: 1. Strip module extending in a longitudinal direction, in combination with a plurality of optic fibre emission shutter elements comprising: a housing extending in said longitudinal direction ... Read More
Inventors: Browne, John;, Assignee: Mark IV Industries Limited (Ontario, CA) |
Speech processing apparatus and methods
It is an object of the present invention to provide improved speech processing apparatus and methods. According to one aspect of the present invention there is provided speech processing apparatus inc... Read More
Inventors: Taylor, Michael R.;, Assignee: Smiths Industries Public Limited Company (London, GB2) |
Reverberation tone generating apparatus
Accordingly, it is an object of this invention to provide a novel reverberation tone generating apparatus capable of producing a reverberation tone rich in naturality with a small and economical circu... Read More
Inventors: Futamase, Tsuyoshi; Kato, Mitsumi;, Assignee: Nippon Gakki Seizo Kabushiki Kaisha (Tokyo, JP) |
Sound effect imparting device for an electronic musical instrument
Accordingly, this invention is directed to eliminate the above-mentioned drawbacks of prior art, and an object of this invention is to provide a sound effect imparting device to provide a sound effect... Read More
Inventors: Futamase, Tsuyoshi; Kato, Mitsumi;, Assignee: Nippon Gakki Seizo Kabushiki Kaisha (Hamamatsu, JP) |
Electronic music signal generator
We claim: 1. An electronic music signal generator which supplies music signals to an audio circuit under the control of a time dependent signal control circuit, including a clock circuit, through a me... Read More
Inventors: Hentzschel, Hanspeter; Hainzlmaier, Hermann;, Assignee: Eurosil Electronic GmbH (Eching, DE) |
X-ray film package for dental use
An aspect of the present invention is that of removing the above-mentioned drawbacks and is reached by providing an X-ray film package for dental use of the above-defined type with an intensifying scr... Read More
Inventors: Beraudo, Riccardo;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Blind fastener
We claim: 1. A two-part pull-type blind fastener comprising a pull-part having a shank provided by a plurality of legs, the legs joined at rear ends to a pulling stem and at their other, free, forward... Read More
Inventors: Osborne, Michael L.; Hadley, Michael J.;, Assignee: USM Corporation (Farmington, CT) |
Loudspeaker enclosure
Referring first to FIGS. 1 and 3, the loudspeaker enclosure 2 includes a horizontal bottom wall 4 and a pair of vertical parallel spaced front and rear walls 6 and 8 respectively, which are mounted o... Read More
Inventors: Pizer, Robert S.; Tryon, Max;, Assignee: |
Elliptically shaped transducer enclosure
What is claimed is: 1. An enclosure which comprises, in combination, a number of sound transducers coupled so as to produce sound in phase with one another, and an acoustically reflective shell which ... Read More
Inventors: Ferralli, Michael W.; Moulton, David R.;, Assignee: |
Acoustic trap for discharging fire arms
What is claimed is: 1. An acoustic trap for discharging fire arms which comprises: (a) an elongated sealed chamber; (b) a support for placing said chamber in an angular downward position so that a bar... Read More
Inventors: Gould, William A.;, Assignee: |
Speaker system
OF THE PREFERRED EMBODIMENT OF THE INVENTION Hereinafter the invention will be described by referring to the embodiments thereof shown in the drawing. The frequencies of the standing waves in hollow ... Read More
Inventors: Ogi, Kenji; Sakamoto, Masakatsu;, Assignee: Trio Kabushiki Kaisha (Tokyo, JP) |
Elevator control system
Accordingly, the primary object of the present invention is to provide an elevator control system which is operable with a non-power stoppage power source of small capacity and small in size and power... Read More
Inventors: Tachino, Kenzo;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Bass reflex type speaker system duct having multiple sound paths
The present invention has been designed to prevent leakage of mid frequency sound from the duct to thereby improve the quality of sound emanating from the speaker. To achieve the aforementioned purpos... Read More
Inventors: Tanaka, Toshihiko;, Assignee: Pioneer Electronic Corporation (Tokyo, JP) |
Muffler for an internal combustion engine
OF THE PREFERRED EMBODIMENT FIG. 1 depicts a cutaway showing of the muffler of the present invention, FIG. 2 depicts a partial cutaway showing of a second embodiment of the invention, FIG. 3 depicts ... Read More
Inventors: Feuling, James J.;, Assignee: Feuling Engineer, Inc. (Ventura, CA) |
Headset with limiter circuit
Having thus described our invention what we claim is: 1. A battery-free protective hearing aid headset for protecting the ears of the wearer from acoustical sound originating externally of the headset... Read More
Inventors: Persson, Leif A. T.; Lundin, Tord P.;, Assignee: |
Routinable clock circuit
The present invention consists of a routinable clock circuit for use in the transmission of station and trunk identity data between a private automatic branch exchange (PABX) and a telephone switching... Read More
Inventors: Vrba, James J.;, Assignee: GTE Automatic Electric Laboratories Incorporated (Northlake, IL) |
Arrangement for the transmission of speech according to the channel vocoder principle
The object of the invention is to provide a digital filter bank for a synthesizer of a channel vocoder constructed in digital technology which, given a relatively low technical expense, can guarantee ... Read More
Inventors: Reiss, Ruediger;, Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DE) |
Pulse width modulated signal amplifier
Accordingly, an object of the present invention is to provide a pulse width modulated signal amplifier which is free of the above described defects in the prior art. Another object is to provide a pul... Read More
Inventors: Suzuki, Tadao; Yoshida, Tadao;, Assignee: Sony Corporation (Tokyo, JA) |
Amplifier system with AGC, as for an AM radio
What is claimed is: 1. A gain-controlled amplifier with tuned load comprising: first and second transistors of the same conductivity type having respectively small and respectively large area base-emi... Read More
Inventors: Malchow, Max E.;, Assignee: RCA Corporation (New York, NY) |
Method for encryption of information
The inclusion in a GSM system of two or more time slots instead of one time slot for one and the same radio transmission in accordance with the aforegoing creates certain problems when encryption and ... Read More
Inventors: Bodin, Roland;, Assignee: Telefonaktiebolaget LM Ericsson (Stockholm, SE) |
Audio Signal Processing 
