Stable stannous chloride composition for labeling with radioactive technetium
What is claimed is: 1. A process for labelling red blood cells with 99m-technetium, which comprises the steps of (a) dissolving a dry, solid, reductive composition in water to form a resultant solutio... Read More
Inventors: Azuma, Makoto; Takahashi, Jun; Yamauchi, Hirohiko; Ueda, Nobuo;, Assignee: Nihon Medi-Physics Co. Ltd. (Hyogo, JP) |
Stereo microphone unit
It is an object of the present invention to provide an improved built-in type stereo microphone unit which executes a stereophonic sound processing mode in a state installed in a casing of a video cam... Read More
Inventors: Hamada, Ichiro; Ohta, Kiyoshi; Ono, Yoshihiro;, Assignee: Sony Corporation (Tokyo, JP) |
Dual indicator circuit for tuning and stereo signals
OF A PREFERRED EMBODIMENT FIG. 1 is a highly simplified block diagram of a receiver for use in receiving amplitude modulated stereophonic signals. The receiver could be any one of many such receivers... Read More
Inventors: Ecklund, Lawrence M.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Tuner station selecting apparatus
Accordingly, a first object of the present invention is to provide an improved tuner station selecting apparatus which is capable of better effecting a station selecting operation. A second object of ... Read More
Inventors: Mishima, Akira; Kubo, Kazuhiko; Usui, Akira;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Password security method
To prevent this, an object of the present invention is to provide a password security system for a man-machine system in which the password is securely protected by not letting a user perceive the exi... Read More
Inventors: Moriyama, Junichi;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Reduced-memory reverberation simulator in a sound synthesizer
In accordance with the present invention, a sound or music synthesizer includes a reverberation simulator having a substantially reduced volatile storage, random access memory, or buffer size in compa... Read More
Inventors: Jenkins, Michael V.; Dong, Qiujie; Veeser, Edward M.;, Assignee: Crystal Semiconductor Corporation (Austin, TX) |
Combined deemphasis circuit and noise blanker
It is therefore an object of the invention to provide a noise reduction circuit to an FM radio for eliminating short duration impulse noises. One aspect of this object is to efficiently detect such no... Read More
Inventors: Kennedy, Richard A.; Manlove, Gregory J.; Marrah, Jeffrey J.; Zarabadi, Seyed R.;, Assignee: Delco Electronics Corporation (Kokomo, IN) |
Audio signal transmission system
It is therefore an object of the present invention to provide an audio signal transmission system which is capable of producing a high-fidelity output. po To achieve such an object, according to the p... Read More
Inventors: Negishi, Hirokazu; Hosaka, Masao;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Active speaker system and components therefor
Each speaker enclosure contains at least a pair of amplifiers and an electronic crossover network along with the audio drivers. The drivers are a tweeter and a pair of eight-inch cones for midrange an... Read More
Inventors: Rush, James M.;, Assignee: |
Snap-in attachment for ear defender cup
According to the present invention a detachable snap-in attachment is defined in which the sliding pins have double mirror-image symmetry in a plane perpendicular to their axes of rotation, the slidin... Read More
Inventors: Nordin, Henrik; Nilsson, Sigvard;, Assignee: Peltor Aktienbolag (Varnamo, SE) |
Time variant analog signal switching apparatus including switching transient avoidance
An objective of the subject invention is to avoid the generation of spurious voltage transients inherent in any operation which involves the switching of a time variant analog signal. A further object... Read More
Inventors: Reed, Lockwood W.;, Assignee: |
Signal processing system and method for digitally mixing a plurality of analog input signals
In one illustrative embodiment of the invention, a signal processing system is provided, receiving a plurality of analog input signals having a maximum frequency and effecting mixing of the analog inp... Read More
Inventors: Fraisse, Christian;, Assignee: SGS-Thomson Microelectronics S.A. (Gentilly, FR) |
Single-chip audio system power reduction circuitry and methods
A single chip audio system includes a bus interface, digital to analog converters, analog mixer, and analog spatial enhancement circuitry. Digital to analog converters convert digital audio data recei... Read More
Inventors: Matthews, Phillip;, Assignee: Cirrus Logic, Inc. () |
Mixing, coding and decoding devices and methods
It is therefore a primary object of the present invention to provide a mixing device and a mixing method which are capable of mixing bitstream data without having to convert the data into analog repre... Read More
Inventors: Kamiya, Ryo;, Assignee: Yamaha Corporation (Hamamatsu, JP) |
Robot pre-positioning in a wafer processing system
Synchronized, Conflict Resolving Schedulers An aspect of the present invention comprises a method for maximizing throughput and quality in a manufacturing system by scheduling events in the system in... Read More
Inventors: Babikian, Dikran; Oh, Hilario;, Assignee: ASML Holding N.V. (NL) |
Digital interface circuit
The subject invention overcomes the disadvantages of the prior art including those mentioned above in that it comprises a digital interface circuit/protocol converter for allowing a first device which... Read More
Inventors: Houlberg, Christian L.; Pacl, Jeffrey J.;, Assignee: |
Encryption apparatus, cryptographic communication system, key recovery system, and storage medium
OF THE INVENTION A preferred embodiment of the present invention will now be described. In the following description, "key piece" implies shared key data; "key decryption" implies to decrypt an encry... Read More
Inventors: Niwa, Akito; Kawamura, Shinichi; Aoki, Megumi; Saisho, Toshiaki; Ishihara, Tatsuya; Sano, Fumihiko; Hori, Satomi;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Broadcast receiver
OF THE PREFERRED EMBODIMENT Using the antenna 1, a sterophonic broadcast signal is received, the two audio signals of which for the right-hand and left-hand sound channel are optionally subjected or ... Read More
Inventors: Schroder, Ernst F.; Spille, Jens;, Assignee: Deutsche Thomson-Brandt GmbH (Villigen-Schwenningen, DE) |
Electronic reverberation device
I claim: 1. An electronic reverberation device comprising an input amplifier having an input and an output, an output amplifier having an input and an output, a delay device connected between said out... Read More
Inventors: Laupman, Robert R.;, Assignee: Novanex Automation N.V. (Wijchen, NL) |
Apparatus and method for reestablishing previously established settings on the controls of an audio mixer
It is an object of the present invention to provide an apparatus and method for reestablishing previously established settings on the controls of an audio mixer that is both inexpensive wand does not ... Read More
Inventors: Snyder, Seth;, Assignee: |
Digit-serial recursive filters
OF THE INVENTION The concepts underlying the present invention are best illustrated by an example. In particular, consideration is given to the addition of two 16-bit numbers. The basic functional un... Read More
Inventors: Hartley, Richard I.;, Assignee: General Electric Company (Schenectady, NY) |
Auscultation augmentation device
The main object of the present invention is to provide a compact, battery-powered device to be used with a conventional stethoscope that will materially improve the signal-to-noise-ratio of the stetho... Read More
Inventors: Scalise, Stanley J.; Rainone, Adele Scalise; Davis, Dennis W.;, Assignee: |
Cryptographic key, or other secret material, recovery
According to the present invention there is provided a method permitting secure storage and secure recovery of secret information at a first location, comprising the steps of generating a recovery key... Read More
Inventors: Arthan, Robin Denis;, Assignee: Fujitsu Services Limited (Slough, GB) |
Music speech filter
This invention electronically and automatically determines whether an audio signal is music or speech and controls the path of the audio signal based on the determination. The filter presorts the audi... Read More
Inventors: Fleming, Mark C.;, Assignee: |
Compatible four channel FM system
A four channel audio system is provided which is fully compatible with standard FM stereo and mono equipment. According to the present invention, a switching or sampling system is employed so that fou... Read More
Inventors: Dorren, Louis;, Assignee: Matsushita Electric Corp. of America (Secaucus, NJ) |
Digital signal processor for adding harmonic content to digital audio signal
It is an object of the present invention is to provide added harmonic content to an audio signal in a computationally efficient way. The present invention introduces distortion to an input audio signa... Read More
Inventors: Massie, Dana C.;, Assignee: Creative Technology, LTD (SG) |
Method and device for preventing unauthorized access to a computer system
I claim: 1. A method for preventing access to a computer system, comprising a processing unit or the like, a disk unit for floppy disks, display and a keyboard, comprising the steps of recording, on a... Read More
Inventors: Sjooquist, Peter Bertil Tom;, Assignee: ICL Systems AB (Kista, SE) |
Sound field forming circuit and sound field forming apparatus
It is an object of the invention to provide a sound field forming circuit which solves the problem, and which can form a sound field that is deep and full of variety, and a sound field forming apparat... Read More
Inventors: Iigai, Yukiya; Inohana, Haruyuki; Ozawa, Akio; Kudo, Kazuyuki;, Assignee: Pioneer Corporation (Tokyo, JP) |
Minimal inductance electrodynamic transducer
Accordingly, it is an object of this invention to reduce the non-linearity and distortion produced in an electrodynamic transducer. It is a further object of this invention to inhibit the voice coil's... Read More
Inventors: Grau, Noel J.;, Assignee: Commonwealth of Puerto Rico (San Juan, PR) |
Encryption apparatus
The present invention proposes an encryption system which avoids the need of having to optimise the delta modulator over a wide range of frequencies yet which provides an enhanced degree of security. ... Read More
Inventors: Repton, Andrew S.; Lysejko, Martin;, Assignee: Marconi Electronic Devices Limited (GB2) |
Audio Signal Processing 
