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7392022 |
Thermally feedable transmitter and sensor system
The transmitter which can be fed thermally has at least one heat transducer element ( 1 ) with a downstream voltage transformer ( 3 ) and logic assembly ( 4 ) as well as a data transmission unit (...
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7392021 |
Apparatus, system, and method for measuring power delivered to a load
Apparatus, system, and method including a circuit including an element having an electrical impedance, an input node to receive a signal, and an output node to couple to a load; a sensing circuit...
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7392019 |
Wireless base station apparatus and wireless communication method
Transmission diversity and adaptive array antenna transmission is executed with respect to a user to which a shared channel is assigned, or a pilot channel is shared a like a shared channel. By...
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7392015 |
Calibration methods and structures in wireless communications systems
Calibration methods and structures are provided for wireless communications devices that compensate across a signal bandwidth for relative gain and phase errors between spatial communication...
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7383028 |
Timing adjustment method for wireless communication apparatus
The linearity of a transmission signal is improved in a wireless communication device by adjusting a delay difference between paths of two signals that are combined into one after modulation...
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7383023 |
Communication apparatus
In a communication apparatus, effective automatic power control (APC) is realized, transmission object signal level changing units change a level of a transmission object signal of each channel,...
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7382297 |
Transmitter I/Q mismatch calibration for low IF design systems
A calibration module includes a first input that receives a reference signal, a second input that receives a crosstalk signal, and first and second absolute value modules that generate first and...
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7379757 |
System and method for estimating the multi-path delays in a signal using a spatially blind antenna array
A method is described that enables a system to estimate the individual times of arrival of multi-path signals components in a received signal while blind to the particular angular response...
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7379716 |
Embedded IC test circuits and methods
A self-testing transceiver having an on-chip power detection capability is provided. The self-testing transceiver can include a semiconductor substrate and a transmitter having a high-power...
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7379715 |
Transmitter apparatus and method using polar modulation with signal timing adjustment
A transmitting apparatus includes a polar signal producing circuit which produces signals corresponding to the amplitude and the phase of a transmitting modulated wave from an input signal and...
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7379714 |
Method and apparatus for dynamically adjusting a transmitter's impedance
A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance...
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7373117 |
Power control in telecommunications networks
A radio frequency transmitter is power controlled using a controlling system including an integrating controller, together with an inner and an outer control loop. A tracking signal supplied by the...
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7372831 |
Packet transmission acknowledgement in wireless communication system
Transmitting an acknowledgement/negative acknowledgement (ACK/NACK) signal in association with a packet transmitted on an uplink is disclosed. The method includes the steps of receiving a packet...
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7369816 |
Highly accurate temperature sensor employing mixed-signal components
A radio transceiver includes circuitry that enables received RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to RF signals prior to transmission...
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7369814 |
Method of transmitting radio signals with polarization diversity and radiocommunication station and terminal for implementing the method
Several versions of the radio signal are transmitted with different polarizations from a first station to a second station. The respective transmission powers of these versions of the radio signal...
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7366508 |
Radio access point testing method and testing apparatus
The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) change-over the paths of signals which are...
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7366484 |
Systems and methods for adjusting the bias level of a mixer in a transmitter
A mixer having dynamic biasing, comprises a mixer configured to receive a local oscillator (LO) reference signal and a radio frequency (RF) data signal, and a bias control circuit configured to...
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7366474 |
Technique of detecting the propagation environment of radio wave
In a detector device 10 of the invention, a wave detection module 20 receives and detects radio wave in a predetermined frequency band, which is used by a target wireless communication device...
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7366464 |
Access point operating with a smart antenna in a WLAN and associated methods
An access point operates in an 802.11 wireless communication network communicating with a client station, and includes a smart antenna for generating directional antenna beams and an...
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7363019 |
Shaping the drive signal of a mixing device
Techniques for shaping the drive signal of a mixing device to overcome a characteristic capacitance of the control terminal of the mixing device and reduce the time the mixing device is in an...
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7363014 |
Transmitting apparatus and radio communication apparatus
A transmitting apparatus 100 operates a high-frequency power amplifier 105 as a nonlinear amplifier in a first mode, and operates high-frequency power amplifier 105 as a linear amplifier in a...
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7362091 |
Test probe having modular components
A test probe. The test probe includes an interconnect module configured to connect to a modular, replaceable wireless module, a connect module configured to communicate with a communication network...
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7353040 |
Closed-loop power controlled radio communication system
In a radio communication system ( 50 ) employing closed loop power control a primary station ( 100 ) adjusts its transmit power in response to control information including power control commands...
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7353020 |
Radio access point testing apparatus and method of testing radio access point
A reception sensitivity is measured at a high precision. An access terminal function portion includes the transmitter part and receiver part of a communication terminal in a radio communication...
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7349670 |
Modular wireless test architecture and method
A modular test chassis for use in testing wireless devices includes a backplane and a channel emulation module coupled to the backplane. The channel emulation module comprises circuitry for...
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7346477 |
Testing a station's response to a reduction in wireless signal strength
Techniques for testing a station, such as a wireless-enabled device, are described. A first method relates to evaluating a station configured to communicate with at least one access point. Another...
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7340248 |
Calibration apparatus
In a calibration apparatus, which calibrates the phases of main signals input to each of the antenna elements of an array antenna, a calibration signal generation portion generates calibration...
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7330705 |
Method and apparatus for controlling specific absorption rate in a mobile communication terminal
A method and apparatus for controlling a SAR (Specific Absorption Rate) in a mobile communication terminal. The SAR is controlled by adjusting a transmission power of a mobile communication...
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7327990 |
Reception diversity system and control method therefor
In a reception diversity system, a wireless apparatus includes an RF unit, analog signal processing unit, digital signal processing unit, and a control unit which controls the RF unit. The control...
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7327984 |
Device and method for measuring receive sensitivity of communication system including receive-only path
Disclosed is a device ( 200 ) and a method for measuring a receive sensitivity of a communication system having a transmit and receive path and a receive-only path, like a base station ( 100 )...
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RE40031 |
Temperature compensated power control circuit
A temperature compensation technique employing a directional coupler providing signals from a forward sample port to a detector circuit for providing a DC output representative of transmitted...
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7315748 |
Method of informing uplink synchronization using downlink TPC bit patterns
A method of informing a terminal of uplink synchronization acquisition in a mobile communication system by using downlink transmit power control (TPC) bits. The base station modifies and transmits...
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7313397 |
Cellular network acquisition method and apparatus
A method of network acquisition for a cellular radio communications device arranged for operation in accordance with a plurality of radio technologies and comprising searching to identify a...
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7308611 |
Intelligent power cycling of a wireless modem
A system for initiating a connection to a wireless network using a wireless modem, where the system maintains the connection to the wireless network when the wireless modem becomes idle. The system...
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7298793 |
Method and apparatus for I/Q mismatch calibration of transmitter
A method for I/Q mismatch calibration of a transmitter. First, a discrete-time signal is generated. Next, a corrected signal based on the discrete-time signal and a set of correction parameters A p...
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7298396 |
Apparatus and method for monitoring transmission systems using embedded test signals
A monitoring system for an RF transmission system, such as a multi-channel television broadcasting antenna feed system, gathers data about the physical and electrical condition of the RF...
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7295817 |
Wireless data communication unit
A wireless data communication unit ( 700 ) shares a data communication resource with a plurality of other data communication units. The wireless data communication unit ( 700 ) receives channel...
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7292877 |
Apparatus and method for calibrating and compensating for distortion of an output signal in a smart antenna
Disclosed is an apparatus and method for calibrating and compensating for distortion of an output signal to an antenna in a mobile communication system with a smart antenna array. A calibration...
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7292829 |
Power amplifier efficiency
The present invention relates to a method and an arrangement for optimizing the efficiency of a power amplifier ( 1 ) that is utilized for transmission of radio signals in a portable radio...
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7289775 |
Method for transmit power control
A transceiver has power control circuitry integrated therein. In particular, the power control circuitry receives a signal indicative of the transmit power level and adjusts the gain on a variable...
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7280809 |
Method for adjusting transmission parameters from a transmitter for digital radio signals
A method for adjusting transmission parameters of a transmitter for digital radio signals, for example, broadcast signals, is described, in which context a receiving apparatus receives the digital...
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7280799 |
Mobile phone repeater
A wireless communication device repeater includes two antennas coupled to a bi-directional gain stage. A gain control system is coupled to the gain stage and adjusts the gain of the gain stage...
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7277707 |
Radio telecommunications network, and a method of selecting base station antennas for connection with a mobile user terminal
In the method provided, test transmissions between the mobile user terminal and base station antennas are made, and the received test transmissions processed to determine respective signal path...
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7277700 |
System and method for emulating a telephony driver
A system and method for emulating a telephone driver of a mobile device to assist in the development and testing of mobile telephony applications is described. An emulated telephony driver...
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7277689 |
Transmission arrangement with power regulation
In a transmission arrangement with power regulation, feedback from an output of a modulator to a digital signal processor is effected via a transmission power detector and an analog/digital...
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7269436 |
Method and apparatus of allocating power in multiple-input multiple-output communication system
A method and apparatus for allocating a power in a multiple-input multiple-output communication system is disclosed. A method of allocating power can include estimating a channel condition based on...
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7268564 |
Apparatus for measuring specific absorption rate of radio communication apparatus
In an apparatus for measuring a specific absorption rate (SAR), a first near magnetic field distribution of a radio wave radiated from an array antenna of a reference antenna including a plurality...
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7266385 |
Method and system for adjusting downlink outer loop power to control target SIR
A wireless communication system and method for controlling transmission power to maintain a received signal-to-interference ratio (SIR) as close as possible to a target SIR. A received quality is...
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7266348 |
Tire air pressure detection system
A tire air pressure detection system, able to prevent a strong electric field or strong radio interference from affecting transmitters and causing mistaken data relating to tire air pressure to be...
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7263135 |
Transmitting method and transmitter apparatus
A transmitting method and a transmitter apparatus, which need no manual adjustment, are disclosed. A delay amount is automatically adjusted such that an out-of-band distortion component of a...
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