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7627286 |
Beamforming systems and methods
Systems and methods of convergence beamforming are disclosed. One method embodiment, among others, comprises receiving N data streams from at least N+1 antennas, where N is an integer greater than...
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7610010 |
Broadcast receiver with selectively storing channel and antenna information
A broadcast receiver for receiving a broadcasting of a prescribed channel transmitted from a broadcasting station by a directivity switching antenna capable of switching directivity to a plurality...
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7603091 |
Hybrid balun apparatus and receiver comprising the same
The present invention relates to a hybrid balun apparatus and a receiver thereof. The hybrid balun apparatus comprises a passive unit, a first active unit, and a second active unit. The passive...
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7587182 |
Receiver input circuit
A receiver input circuit comprises an R-∞ type low-pass filter, a small-capacitance type coupling capacitor element and a parallel tuning circuit. The low-pass filter has an inductor element and...
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7587173 |
Antenna steering for an access point based upon spatial diversity
A method for operating an access point in a wireless local area network is provided, wherein the access point includes a directional antenna for communicating with at least one remote station. The...
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7583942 |
Tuning device and radio-wave corrected timepiece
A tuning apparatus is provided, wherein the on and off resistances of semiconductor switches within an tuning IC are optimized, so as to provide high sensitivity and superior stability, a wide...
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7577411 |
Mobile station access and idle state antenna tuning systems and methods
Wireless communication device tuning an antenna matching circuit responsive to a receive signal quality indicator and, optionally, responsive to a failed access probe is provided. Systems and...
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7570946 |
Method for determining the signal strength at the input of a tuner
The invention relates to a method for determining the strength of a signal ( 18 ) at the input of a tuner ( 1 a .) In this, the frequency-dependent amplification characteristic for the tuner is...
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7570915 |
Antenna unit equipped with a tuner portion
An antenna unit equipped with a satellite radio tuner and a tuner-unequipped head unit are connected to each other through a serial bus cable. Equipped in the antenna unit, the satellite radio...
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7512383 |
Transmit-receive switching in wireless hearing aids
Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. One aspect relates to an apparatus for use within a communication system that has an...
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7509100 |
Antenna interface unit
A ferro-electric (FE) tunable antenna matching circuit is provided for a multi-band antenna. The tunable matching circuit is integrated with a diplexer on one substrate. The tunable matching...
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7509096 |
Wireless access point setup and management within wireless local area network
A Wireless Local Area Network (WLAN) processing component includes a network interface and a processor. The network interface interfaces the WLAN processing component to a plurality of Wireless...
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7505746 |
IC receiver to minimize tracking error
A multi-band receiver in which characteristics including a tracking error are improved is provided with a variable frequency oscillator circuit, a variable divider circuit ( 39 ) for dividing an...
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7502590 |
Broadcast receiver receiving broadcasts utilizing variable directional antenna
In a broadcast receiver, determination is made, as channel search, whether a broadcast wave is valid for reception for all reception directions by a variable directional antenna with respect to...
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RE40620 |
Fully integrated All-CMOS AM transmitter with automatic antenna tuning
A monolithic AM transmitter is disclosed. An external antenna forms part of a resonance network so that the antenna resonance point is automatically tuned to the transmit frequency. This provides...
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7463870 |
Receiver circuit and control method
In a circuit for reception of signals which have been modulated onto electromagnetic waves, an antenna arrangement ( 11 ) having a variable resonant frequency, a tunable oscillator, a variable gain...
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7444118 |
Electronic communications system
In order that an electronic communications system ( 100 ) equipped with: [a.1] at least one base station ( 10 ), to which [a.2] at least one LC resonant circuit ( 13, 16 ) [a.2.1] with at least one...
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7433332 |
Managed microcell wireless mesh network architecture
A wireless network with tiered centralized control is provided. The wireless network includes a controlling node and a plurality of participant nodes. Each participant node includes an...
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7426373 |
Electrically tuned resonance circuit using piezo and magnetostrictive materials
An impedance tuning system, especially for a cellular telephone system. The system can be used to match the impedance of an antenna element with that of an output stage of a transmitter driving the...
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7409197 |
Transceiver with receive path overload protection and method
A transceiver includes a detuning circuit to generate an impedance mismatch in a receive signal path in response to a control signal provided by loop-control circuitry. The loop-control circuitry...
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7369828 |
Electronically tunable quad-band antennas for handset applications
An electronically tunable quad-band antenna which includes a tunable high band antenna tuned by at least one tunable varactor associated therewith; the tunable high band antenna further includes a...
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7366473 |
Method and apparatus for diversity switching control
A method and apparatus for diversity switching control are generally described herein. According to one embodiment, a diversity control network is introduced which effectively reduces the number of...
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7359681 |
Transmitting apparatus and method of mobile communication terminal
A mobile communication terminal transmitter comprises a detecting unit for detecting at least one of a first power level and a first power of reflection; a baseband signal processing unit for...
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7333835 |
Method and apparatus for providing user specific downlink beamforming in a fixed beam network
The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network. In one embodiment, there is provided a mobile transceiver comprising a first...
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7330708 |
Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus
There is disclosed a tuning circuit having a coil and a capacitor comprises a resistance-adjustment circuit connected in parallel with the coil and the capacitor. The resistance-adjustment circuit...
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7295822 |
Radio wave receiver, radio-controlled timepiece and tuning capacitance setting method
A radio wave receiver for receiving radio waves having a predetermined frequency, the receiver comprises an antenna, an variable capacitor connected to the antenna, a memory, and a controller which...
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7292831 |
Radio communicate method and system
A transmitter 1 transmits from a transmission antenna 7 a mixture signal containing a radio-frequency (RF)-band modulated signal, and a portion of power of a local oscillation signal used for...
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7269396 |
Method and device for suppressing multipath interference in a receiver for electromagnetic waves
A method and a device for a receiver for electromagnetic waves having at least two antennas are described; using this method and this device it is possible to effectively suppress multipath...
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7269399 |
Receiver of double conversion system with antenna tuning with variable capacitance using digital-to-analog converter having temperature coefficient setting section
A receiver of double conversion system wherein unwanted components included in received signals can be removed without fail and wherein the number of constituent parts has been reduced. The...
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7236756 |
Tuning signal generator and method thereof
A front end tuning system includes a tuning signal generator. The tuning signal generator includes a digital-to-analog converter (DAC) to receive a pre-conditioned tuning signal at a reference...
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7218902 |
Antenna for communication with a satellite
A telecommunication system uses a satellite antenna showing on the horizontal plane, a sufficiently narrow radiation lobe to discriminate two adjacent satellites and showing on the vertical plane,...
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7206553 |
Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance
An impedance matching circuit ( 140 ) includes a capacitive element (C 1 , 220 ), having a capacitance C, coupled in parallel with an output node ( 215 ) of the matching circuit, and an inductor (L...
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7181243 |
Frequency translation
The present invention provides a serrodyne architecture that is capable of operating at high frequencies. The architecture generally includes a coupler, a delay line, and a switching system. The...
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7174142 |
Receiver having a built-in antenna and method of impedance-matching for the same
A receiver includes an antenna, an impedance-matching circuit, a receive circuit, a control circuit, a digital-to-analog (D/A) converter, a mode switch, and an EEPROM. The impedance-matching...
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7164895 |
Antenna tuned circuit for a superheterodyne receiver
A multi-band receiver in which characteristics including a tracking error are improved is provided with a variable frequency oscillator circuit, a variable divider circuit ( 39 ) for dividing an...
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7149494 |
Demultiplexer and communication device
A demultiplexer includes an antenna terminal, a reception filter connected to the antenna terminal, a transmission filter connected in parallel to the reception filter with respect to the antenna...
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7142833 |
Matching unit
A matching unit includes a switching means for switching an inductance of a first inductor. This switching means sets an inductance such that a first inductor shows an inductance property to both...
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7054664 |
Method and apparatus for providing user specific downlink beamforming in a fixed beam network
The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network, the fixed beam network comprising a plurality of fixed beams, each of the...
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7035609 |
Method and apparatus for automatically identifying an antenna connected to a radio transmitter and for automatically controlling a transmitter
A transmission system or apparatus includes a transmitter or source of transmitted RF or microwave power which is selectively connectable via a transmitter connector to an antenna having an antenna...
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6983173 |
Telecommunications device
A telecommunications device is provided that enables monitoring of the directivity of a wireless communications system that wirelessly transmits signals using multiple communications antennas while...
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6975844 |
Tuner receiving system, control unit for receiving radio waves by using tuner, storage medium from which data can be read out by using computer, and method of receiving radio waves by using tuner
A tuner receiving system, a control unit for controlling a tuner receiving operation, a computer readable storage medium, and a method of receiving radio waves by using a tuner, are disclosed. The...
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6917793 |
Antenna assembly with a capability to remember the frequency of remote signals and to search for and memorize wireless frequency bands
An antenna assembly has an antenna set, a rotation assembly and a control circuit for driving the rotation assembly to rotate to adjust receiving angel of the antenna set. The control circuit can...
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6907234 |
System and method for automatically tuning an antenna
An apparatus and method is related to a wireless system with an antenna that is automatically tuned to a desired frequency. The antenna is coupled to an adjustable tuning circuit to form a tuned...
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6895230 |
System and method for delay equalization of multiple transmission paths
The present invention provides systems and methods for addressing the effects of non-linear phase response, such as by equalizing electrical delays among transmission paths. A preferred embodiment...
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6867981 |
Method of mounting combination-type IC card
The invention is to set a resonance frequency to various resonance frequencies by cutting a signal line which connects a tuning capacitor for trimming and an antenna currently with a milling step...
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6862432 |
Antenna impedance matching device and method for a portable radio telephone
A device for matching an antenna impedance in a portable radio telephone having transmission and receiving circuits, a foldable casing enclosing the radio, the foldable casing movable between an...
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6862436 |
High frequency circuit board and antenna switch module for high frequency using the same
A high frequency circuit board comprising: a choke coil circuit element of a high frequency switching circuit; a dielectric laminated structure body comprising a plurality of dielectric layers...
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6826391 |
Transmission and reception antenna system for space diversity reception
A method and device for achieving space diversity reception in a system that has a first antenna and a second antenna disposed apart from each other over a quarter wavelength of the operating...
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6731349 |
Tuner with at least a first and a second frequency band
The invention relates to a tuner with at least a first and a second frequency band and with means for effecting a switch-over between the frequency bands, which tuner comprises a signal input...
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6714771 |
Broadcast radio signal seek circuit
A broadcast radio frequency receiver includes an improved seek circuit receiving analog radio signals via an antenna according to a signal seek process wherein the frequency of the analog radio...
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