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Document Title |
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8160635 |
Communication network system and communication method thereof
Disclosed is a communication network system, which includes a cluster and a base station. The cluster includes plural communication devices installed underwater and a wired connection connecting at...
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8131213 |
Sea vessel tagging apparatus and system
The present invention discloses a tagging and identification device and system for tracking and monitoring sea vessels as they enter sea ports, estuaries and/or other channels. The tagging device...
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8055193 |
Underwater remote sensing
An underwater remote sensing system comprising a transmitter for transmitting an electromagnetic signal, a receiver for receiving an electromagnetic signal reflected from an object and determining...
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8045919 |
Electromagnetic/acoustic underwater communications system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor...
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8046024 |
Multi-radio platform with WiMax and bluetooth radio modules and method
Embodiments of a multi-radio platform with longer-range and shorter-range radio modules and method are generally described herein. Other embodiments may be described and claimed. In some...
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8036595 |
Capacitive bonding of devices
The present invention relates to systems and methods that facilitate wireless device communications and configuration. A detection component identifies N devices that are coupled together via a...
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8005424 |
Communication device and communication method of underwater vehicle
The present invention provides a communication device and a communication method of an underwater vehicle, which use an electromagnetic field (electromagnetic wave), having a higher propagation...
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7877059 |
Underwater communications system comprising relay transceiver
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor...
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7873316 |
Underwater communications system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor...
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7863907 |
Temperature and pressure transducer
Methods for making and systems employing pressure and temperature sensors are described. Embodiments include a capacitive element including a first conductor plate and a second conductor plate....
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7853206 |
Underwater communications system with adaptable carrier frequency
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor...
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7831205 |
Methods and systems for wireless communication by magnetic induction
Disclosed are embodiments of methods and systems for wireless data transmission by magnetic induction. In one embodiment, a network of magnetic induction units is provided. The units may be...
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7826794 |
Distributed underwater electromagnetic communication system
An extended underwater electromagnetic transducer is provided with an electrically insulated transmission line typically connected to a transmitter or receiver or transceiver system. The...
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7796943 |
Sub-surface communications system and method
A communications system including: a plurality of sub-surface portable transceivers each including: a digital data source, a modulator coupled to the digital data source, a power amplifier coupled...
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7769632 |
System for selectively communicating promotional information to a person
A system for selectively communicating promotional information to a person, includes a sensing system, a storage device, a controller, and a projection device. The sensing system measures a...
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7761100 |
Ultra-low frequency electromagnetic tracking system
Described herein are one or more implementations for an electromagnetic (EM) position and orientation tracking system operating at an ultra-low frequency, which reduces the strength of eddy...
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7716053 |
Information transmission method and information transmission system in which content is varied in process of information transmission
A system and method for transmitting messages among terminals with increasing uncertainty. According to one embodiment, players in a game exchange text messages via wireless computing devices. A...
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7711322 |
Underwater communications system and method
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor...
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7684754 |
Capacitive bonding of devices
The present invention relates to systems and methods that facilitate wireless device communications and configuration. A detection component identifies N devices that are coupled together via a...
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7613162 |
Mobile device, system and method for enhanced channel allocation when radio resource connection is released while in dual transfer mode
A mobile device, system, and method are disclosed for use in a wireless communication system during the mobile device's transition from a dual mode, in which a packet switched connection and...
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7221908 |
Radio communication apparatus
A communication apparatus operating under a back scattering system involving processes of QPSK modulation is provided. The apparatus includes: a first signal channel for acquiring a first reflected...
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7149472 |
Through-the-earth radio
A through-the-earth communication system that includes a digital signal input device; a transmitter operating at a predetermined frequency sufficiently low to effectively penetrate useful distances...
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7050831 |
Through-the-earth communication system
A method and system for communication within an energy-transmission-limited environment. RF transceivers throughout the site are located site-wide such that areas within the site in which...
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7043195 |
Communications system
A communications system, including at least one base station (8) at the surface, at least one repeater station (6) below the surface, and at least one mobile station (4) below the surface, the...
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6928301 |
Distributed architecture wireless RF modem
The present invention provides for a wireless radio frequency (“RF”) modem that plugs into a host computer and shares a central processing unit and memory with the host computer, wherein pri...
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6766141 |
Remote down-hole well telemetry
The present invention includes an apparatus and method for telemetry communication with oil-well monitoring and recording instruments located in the vicinity of the bottom of gas or oil recovery...
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6272349 |
Integrated global positioning system receiver
A GPS receiver (1) has an antenna (3) mounted directly on a first side (4) of a multilayer printed circuit board (PCB) substrate 2. Electrical conductors interconnect the antenna (3) with an RF...
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6266019 |
System for increasing antenna efficiency
A communications device having an antenna and a housing having a front section and a rear section, one of the front section and the rear section being conductive. A circuit board is mounted within...
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6263189 |
Narrowband high temperature superconducting receiver for low frequency radio waves
An underground communicating device has a low-noise SQUID using high temperature superconductor components connected to detect a modulated external magnetic flux for outputting a voltage signal...
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6085111 |
Telephone and device intended to be adapted to said telephone when operating in restricted mode
The invention relates to a telephone comprising a keyboard which has keys to which various functions are assigned. According to the invention, the operation of certain keys is admitting of being...
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5991602 |
Method of and system for communication between points along a fluid flow
A method of communicating data between points along a fluid flow includes providing a plurality of remotely writable and readable data storage units capable of flowing in the fluid flow; remotely...
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5794126 |
Emergency positioning indicating radio buoy having a thermally insulated frequency standard
An emergency positioning indication radio buoy used in case of emergency by being thrown into the sea from a ship. This radio buoy comprises a transmitting unit for generating a high frequency...
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5737731 |
Method for rapid determination of an assigned region associated with a location on the earth
A global communication system must comply with service restrictions when operating across political and other restrictive boundaries. The location of a subscriber unit must be correlated to a...
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5471658 |
Hermetically sealed communication system with rechargeable battery
A wireless fully submersible transmitter includes the substantially water-resistant casing within which there is located an audio frequency circuit, a radio frequency circuit, antenna, and a...
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5345473 |
Apparatus for providing two-way communication in underground facilities
The invention relates to an apparatus which is desiged for underground use in order to facilitate a two-way communication. The apparatus is operated within the frequency band 0.1-2 MHz, in order to...
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5301127 |
High speed method for predicting radio-wave propagation
Radio-wave propagation is rapidly predicted by a hybrid computational method that uses Ray Optics techniques to calculate radio field strength above a limiting radio-wave ray, Parabolic Equation...
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5264795 |
System transmitting and receiving digital and analog information for use in locating concealed conductors
An improved locator system is provided which transmits digital and analog information over an electromagnetic field that is radiating from an underground source. The locator system includes a...
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5251326 |
Two way communication system for water sports
A system for two way communication under shallow water or between a swimmer and observer comprising a transceiver, a wire for conducting electrical signals connected to the transceiver, a...
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5241410 |
Enhanced infrared-connected telephone system
This invention provides a number of improvements to wireless telephone systems. There is an adapter box for interfacing standard telephone equipment to an IR-based telephone interface to replace...
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5230080 |
Ultra-high frequency communication installation
A communication installation for use in a site having underground galleries, for information exchanges, comprises a repeater connected to a wired distribution network. The repeater is arranged for...
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5146611 |
Mine communication cable and method for use
A mine emergency communication cable and a method for use. The cable is comprised of a plurality of brightly colored, lightweight, strong synthetic fibers having a plurality of noninsulated tin...
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5120904 |
Electrode
Electrode used for one pole in underwater transmission of high-voltage direct current, an insulated cable being used for the other pole, such electrodes being adapted to be stationary on the bottom...
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5093929 |
Medium frequency mine communication system
A method for using an underground mine communication system to effect minewide communication and an intrinsically safe current limiter circuit for insuring that electrical equipment in the system...
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5087099 |
Long range multiple point wireless control and monitoring system
A method for remotely monitoring conditions such as carbon monoxide or methane gas concentration, longwall roof support pressure, machine parameters or uncut coal, trona or potash layer thickness...
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4984292 |
Bandpass amplifier and receiver using bandpass amplifier
The present application relates to an active bandpass amplifier comprising a single stage operational amplifier, a bridged "T" network single frequency elimination filter in the negative feedback...
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4905211 |
Precision doppler effect compensator
A precision Doppler effect compensator provides Doppler compensation in astic transmission by simultaneously sending a known reference signal with an information signal. The information signal and...
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4890334 |
Buoy structure for detecting fishing grounds
A buoy for detecting fishing grounds, mainly comprised of an upper body, a lower body, a water-proof ring, a FM antenna, a PC Board, a pad, a rechargeable battery, an insulator, an ultrasonic wave...
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4885797 |
Communication system
An audio signal and a selected one of a plurality of sub-audio tones are transmitted to a plurality of receiving each being capable of being conditioned by first, second or third selected sub-audio...
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4870697 |
Two-way communication system for winning machines in underground mining
A two-way communication system for transmitting command signals to and receiving operating data from a winning machine utilized in underground mining operations. The system includes a send-receive...
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4805160 |
Data transmission method for ocean acoustic tomography
The present invention enables tomography data in the sea to be collected and transmitted via an artificial satellite to a ground station. Accordingly, data on the Doppler phenomenon and shift of a...
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