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8175524 |
Information processing apparatus having a shared antenna element
According to one embodiment, an information processing apparatus includes an antenna element, a first wireless communication module including a printed circuit board and a wireless communication...
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8160664 |
Omni-directional antenna supporting simultaneous transmission and reception of multiple radios with narrow frequency separation
An omni-directional antenna supporting simultaneous transmission/reception, from the same AP, on multiple frequencies, allowing each AP to communicate using each possible frequency. Each AP...
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8155602 |
MEMS-based radio frequency circulator
The invention relates to an RF circulator device with n ports allowing an RF signal to circulate in a single direction, where the circulator has at least three ports, an input port for receiving a...
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8143844 |
Charging device
The charging circuit includes an antenna circuit receiving radio waves, a rectifier circuit rectifying AC voltage generated in the antenna circuit to generate DC voltage, and a power supply circuit...
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8126410 |
Miniature sub-resonant multi-band VHF-UHF antenna
A novel antenna system for receiving transmissions in the VHF and UHF frequency bands particularly suitable as a miniaturized antenna for UHF reception, such as of digital video broadcasting...
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8073490 |
Mobile station direction finding based on observation of forward link
Beam-formed transmission from a transmitting wireless communication station to a receiving wireless communication station is supported by estimating a direction for the beamformed transmission. The...
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7933565 |
Transformer coupling of antennas
Embodiments describe improved coupling of power amplifiers to antennas for the transmission of signals, such as OFDM signals. A large number of separate windings are utilized on a primary side,...
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7756471 |
Systems and methods for multi-element antenna arrays with aperture control shutters
Embodiments include systems and methods for controlling beam direction of an array of antenna elements in a wireless communications system. In one embodiment, aperture control shutters...
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7751779 |
Satellite communication system
A payload (108) to be mounted onto a satellite (102) can include a first steerable antenna (302) providing a downlink to and an uplink from a first user terminal; a second steerable antenna (304)...
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7720509 |
Harmonized adaptive arrays
A system and method for harmonizing adaptive arrays for wireless communication systems. The system includes a basis beam that receives packet transmissions from stations. The system determines the...
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7647020 |
Multi-mode foldable electronic apparatus and method thereof
A multi-mode foldable electronic apparatus and the method thereof are provided. The multi-mode foldable electronic apparatus includes a first housing, a second housing, a first hinge, a second...
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7509146 |
Beamforming using subset of antenna array
A radio communication system including multiple antenna elements divided into subgroups of at least two antenna elements, and multiple line cards operable to employ spatial processing techniques....
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7460831 |
System and method for excluding narrow band noise from a communication channel
A signal filtering system and method that may be used in conjunction with a repeater or an input stage of a base-station. The system may include an analog to digital converter adapted to sample a...
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7412204 |
Distributor and broadcast signal receiving system using the same
A distributor arranged between a tuner module and an antenna, the tuner module including a first input portion and a second input portion for inputting a satellite broadcast signal transmitted from...
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7340280 |
Method of configuring base station, and base station
A base station and a method of configuring a base station are provided in a cellular telecommunication system, wherein the base station comprises an electrically tunable duplex filter with a tuning...
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7257369 |
Repeater with diversity transmission
A radio-frequency (RF) repeater, including a first repeating section which is adapted to receive and amplify forward-signals from a first transceiver so as to generate amplified-forward-signals and...
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7228102 |
Resonant frequency user proximity detection
An electronic device able to detect a user in close proximity. The device may be a wireless data input device, for example, a radio frequency computer mouse. The device has power management...
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7142821 |
Radio frequency transmitting and receiving module and array of such modules
A radio frequency transmitting and receiving module having a support housing that has a hexagonal face member mounted to the support housing. This face member has an antenna for transmitting and...
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7123876 |
Easy set-up, vehicle mounted, in-motion tracking, satellite antenna
A low profile, vehicle mounted, in-motion tracking, satellite antenna includes a pair of antenna assemblies mounted in parallel on a rotatable platform. Each antenna assembly includes two...
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7079808 |
Light socket wireless repeater and controller
A wireless repeater and controller is placed between a light socket and a light bulb, such as in a ceiling light fixture. The wireless repeater and controller has an extending threaded portion that...
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7013165 |
Antenna array apparatus and beamforming method using GPS signal for base station in mobile telecommunication system
There is provided an antenna array apparatus using a GPS signal in a base station and a beamforming method thereof. In the antenna array apparatus, a GPS signal processor receives GPS position...
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6978158 |
Wide-band array antenna
A wide-band array antenna using a single real-valued multiplier for each antenna element is simple in construction and suitable for wide-band code division multiple access (WCDMA) mobile...
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6975271 |
Antenna switch module, all-in-one communication module, communication apparatus and method for manufacturing antenna switch module
To realize high pressure-tightness and improvement in a high-frequency characteristic due to a low impedance between a shunt FET and a ground of a FET switch circuit. An antenna switch module...
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6952560 |
Tuned antenna resonant circuit of a passive transponder
A tuned antenna resonant circuit substantially increases the range of a passive transponder in a high-frequency electromagnetic carrier field, in that the real and imaginary parts of the impedance...
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6952587 |
Antenna beam steering responsive to receiver and broadcast transmitter
A method of controlling an antenna signal combiner in a vehicle having multiple antenna elements, a navigational system and a receiver comprising the steps of receiving signals from at least one...
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6871081 |
Broadband wireless access system
Typically it is expensive to add cable within an existing multiple dwelling units (MDUs) such as blocks of flats to provide additional services such as broadband internet access, video on demand...
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6871079 |
Antenna built-in type mobile phone
An antenna built-in type mobile phone includes a mobile phone main body; and a battery detachably installed in the mobile phone main body and having an antenna at a predetermined position thereof....
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6606025 |
Synchronous demodulator
A synchronous demodulator (10) drives an output antenna (21) with a push-pull driver circuit (13). The push-pull driver circuit (13) includes two transistors connected in a push-pull configuration...
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6381473 |
Distributed antenna for personal communication system
A distributed antenna for use in a digital mobile telephone system includes a set of coaxial cable to couple the RF signals to and from a base station in which at least one set of the transmitter...
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6249688 |
Antenna electrical coupling configurations
An indirect electrical coupling for a cellular telephone antenna is created by a rotary primary antenna and a stationary paging antenna when the primary antenna is extended into an operative...
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6188875 |
Wireless telephone server system
A wireless telephone server system used for reproducing a wireless base station signal and introducing the reproduced signal in a new geographical area. The system reproduces or clones a full, high...
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6072985 |
Spacecraft cellular communication system with mutually offset high-margin forward control signals
A spacecraft cellular communication system (10) includes a spacecraft (12) with an antenna (12a) which produces multiple "spot" beams (20a, 20b, . . . ) for serving user terminals (16) lying in the...
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6049315 |
Repeater isolation through antenna polarization diversity
A repeater for extending the range of communications between a base station and a mobile unit without rendering the mobile unit incapable of communicating directly with the base station. In...
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5812933 |
Duplex RF repeater for personal communications system
A duplex RF repeater for use in a personal communications system distributes and enhances time division duplexed signals at a single RF carrier. The duplex RF repeater includes an up-link amplifier...
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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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5267234 |
Radio transceiver with duplex and notch filter
A transceiver for a cellular telephone, particularly a portable telephone, comprises a transmitter and a receiver coupled to a common antenna by an antenna duplex filter. The duplex filter...
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5252979 |
Universal communication system
A communication system for use in an area having a human environment delimited from below by a floor and from above by an overhead environment substantially clear of human presence. The...
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5187807 |
Base station for a radiotelephone communication system with switchig members for connecting link lines to transmitter members
The relay base of the invention comprises a receive antenna connected to a receiver coupling member associated with receiver members connected to respective digital processing units. The digital...
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5164985 |
Passive universal communicator system
A communication system includes a base station, called a "Controller" and one or more remote or satellite stations, each called a "Communicator". The controller arbitrates, controls and...
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4907291 |
Transmitter/receiver apparatus
A miniature microwave transmitter/receiver is small enough to be mounted in the feeder of a microwave antenna. The transmitter and receiver do not interfere with each other despite their close...
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4406016 |
VHF Sensor in-band radio relay
Disclosed is an in-band, non-sampling, real time VHF radio relay or signal epeater for use in two-way, multi-hop remote sensor data links. Each signal repeater comprises a transceiver which...
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4358763 |
Continuous-wave radar responder having two-position switches
The invention relates to C-W radar responders, having a carrier of some gigahertz whose amplitude is modulated between some dozens and some hundreds of kilohertz. Such a responder comprises means...
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4325140 |
Full duplex communication system apparatus using frequency selective limiters
A microwave duplexer apparatus utilizing a frequency selective limiter unit in conjunction with a microwave circulator to direct RF energy from a transmitter to an antenna and from an antenna to a...
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4302846 |
Marker tag for a detection system
This invention is directed to a receptor reradiator for use in a system for detecting the position of the receptor reradiator in a surveillance zone. It comprises a first aerial means for receiving...
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4134068 |
Transmitter/receivers
A transmitter/receiver adapted for contemporaneous operation in the transmit and receive mode utilizing a single carrier frequency whereby single frequency duplex operation is achieved.
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4114151 |
Passive transponder apparatus for use in an interrogator-responder system
A passive transponder for use in an interrogator-responder communication system is disclosed, including a first signal receiving element having a variable reflection property, a code signal...
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4056779 |
Vehicular repeater
In a two-way communications system involving portable-mobile-base station transmission, a priortization method prevents interference caused by more than one mobile repeater at a single location...
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4019181 |
Transponder system
A responder system in which incoming frequency f0 is converted to a harmonic frequency, e.g. 2f0, by means of a non-linear element, for example a diode, which is connected between capacitance and...
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3987396 |
Repeater system
A radio frequency FM repeater system receives and retransmits at the same frequency, the retransmitted signal having the same deviation as the received signal. To accomplish this the IF filter is...
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3983482 |
Delayed pulse transmission systems
1. In combination, means normally unblocked for receiving incident wave energy pulses, a multi-resonant cavity supplied with the received pulses for storage of the radio frequency energy in said...
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