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| Number | Title | Issue Date |
| 8185059 | Testing of automobile mounted antennas A method and device provides for the testing and validation of a control module for receiving wireless data and communications utilizes a transmission line coupler mounted proximate the control module generates a signal that couples to an antenna of the control modu... | 05/22/2012 |
| 8160501 | Test device for gain level determination of wireless repeater systems What is disclosed is a test device for a wireless repeater system in a wireless communication network. The test device includes a transmitter configured to establish a call with the wireless communication network through the wireless repeater system and determine a ... | 04/17/2012 |
| 8131223 | System for testing an embedded wireless transceiver A test equipment for testing a wireless communication device includes a wireless transceiver, memory, and a controller. The wireless transceiver transmits a first and second series of packets. The wireless transceiver receives a power level indicator that is based o... | 03/06/2012 |
| 8121553 | Apparatus and method for determining channel quality indicator (CQI) using beamforming in multi-antenna system An apparatus and a method for determining a Channel Quality Indicator (CQI) using a beamforming in a multi-antenna system are provided. A transmitter for determining a CQI based at least partly upon the beamforming in the multi-antenna system includes a beam former ... | 02/21/2012 |
| 8112043 | Radio frequency communication devices and methods One embodiment relates to a radio frequency (RF) communication device. The RF communication device includes an antenna interface coupled to an antenna that exhibits a time-varying impedance. The RF communication device also includes a test interface coupled to RF te... | 02/07/2012 |
| 8055207 | RF receiver with fast baseband switching A receiver includes a plurality of RF receiver modules, a plurality of analog baseband sections, a plurality of analog to digital conversion sections, and a digital baseband processing module. The RF receiver modules convert inbound RF signals into a plurality of in... | 11/08/2011 |
| 8045928 | Test system for adjusting a wireless communication device by impedance loading features A test system for adjusting a wireless communication device by impedance loading features includes a power supply for generating a plurality of voltages, a test fixture coupled to the power supply for generating impedances corresponding to a plurality of impedance l... | 10/25/2011 |
| 8045929 | Determining presence of radio frequency communication device A RF data communication device operates in at least two states. In a first state, the device transmits a response to an RF transmission if specific data therein represents an inquiry as to the presence of one or more RF data communication devices and if specific dat... | 10/25/2011 |
| 8041306 | Cross-core calibration in a multi-radio system A Radio Frequency (RF) transceiver includes a first RF transceiver group, a second RF transceiver group, local oscillation circuitry, and calibration control circuitry. Each of the RF transceiver group has an RF transmitter and an RF receiver. The local oscillation ... | 10/18/2011 |
| 7957699 | Method and apparatus for measuring state of plurality of channels and for selecting idle channel A method of measuring a state of a plurality of channels is provided. The method includes transmitting to a second device test signal information needed to transmit/receive a test signal for measuring the state of the plurality of channels; receiving an information ... | 06/07/2011 |
| 7925220 | Method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals Aspects of a method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals are provided. In this regard a portion of a signal output by an integrated FM radio transmit block and reflected by an antenna may be... | 04/12/2011 |
| 7920830 | Method for performing a radio frequency test on a mobile phone A method for performing an radio frequency test of a mobile phone (5) includes: setting standard parameters of a transmitter (52); controlling an RF tester (3) to send RF signals to a receiver (53); processing the RF signals and transmitt... | 04/05/2011 |
| 7873325 | Cross-core calibration in a multi-radio system A Radio Frequency (RF) transceiver includes a first RF transceiver group, a second RF transceiver group, local oscillation circuitry, and calibration control circuitry. Each of the RF transceiver group has an RF transmitter and an RF receiver. The local oscillation ... | 01/18/2011 |
| 7865147 | System for testing an embedded wireless transceiver A test equipment for testing a wireless communication device includes a wireless transceiver and a controller. The wireless transceiver transmits a first series of packets while operating in a first mode. The wireless transceiver transmits a second series of packets... | 01/04/2011 |
| 7826799 | System for calibrating a hands-free system A method for calibrating a hands-free system is provided. The hands-free system comprising a hands-free unit and a mobile phone, the method comprising the following steps of setting up a connection between the hands-free system and a distant terminal via a mobile te... | 11/02/2010 |
| 7805111 | Fast log-radial wireless terrain propagation prediction method Wireless system electromagnetic propagation or attenuation design or analysis is performed by determining (by calculation or empirically) the attenuation between all sets of grid points of a terrain. To make the information readily available, the results of the dete... | 09/28/2010 |
| 7792493 | Transmitter and a method of calibrating power in signals output from a transmitter A transmitter circuit 10 with a first characteristic controllable by a first control signal and a second characteristic controllable by a second control signal is calibrated using a calibration method to enable accurate power control. The transmitter circuit ... | 09/07/2010 |
| 7756484 | Monitoring voice quality in communication networks A method for monitoring voice quality in a communication network. In a first embodiment, the method comprises the steps of: establishing a voice communication pathway (VCPW) between first and second telephone terminals; establishing speech cadence between first and ... | 07/13/2010 |
| 7751781 | Multi-transceiver system and methods of compensating offset frequency Disclosed is a multi-transceiver system adapted to estimate a frequency offset on basis of a test signal and a reference signal. Transceivers in the multi-transceiver system are adapted to transmit signals compensated with the frequency offsets. ... | 07/06/2010 |
| 7660559 | Automatic antenna selection for mesh backhaul network nodes Methods and devices related to wireless networking. A wireless device has multiple directional antennas and multiple backhaul radio modules which provide point to point wireless links with other wireless devices. Each radio module can use any one of the available di... | 02/09/2010 |
| 7653356 | System and method for reducing spurious emissions in a wireless communication device including a testing apparatus A wireless communication device is disclosed wherein isolation buffers couple to respective active circuits or stages of the device to convey test information regarding such active circuits to a test data line from which status information may be collected. The comm... | 01/26/2010 |
| 7616929 | Cross-core calibration in a multi-radio system A Radio Frequency (RF) transceiver includes a first RF transceiver group, a second RF transceiver group, local oscillation circuitry, and calibration control circuitry. Each of the RF transceiver group has an RF transmitter and an RF receiver. The local oscillation ... | 11/10/2009 |
| 7570923 | I/Q compensation of frequency dependent response mismatch in a pair of analog low-pass filters Frequency dependent I/Q imbalance in real I/Q filter pairs compensation may be performed using a simple compensation module, placed in the receiver/transmitter chain, with a gain adjustment coefficient and a delay adjustment coefficient. The gain adjustment coeffici... | 08/04/2009 |
| 7539460 | Method and tester for determining an error rate of a mobile-telephone device, especially for USF-BLER A method and apparatus for determining an error rate is described, in which a transmission block having an allocation signal is received by a mobile communications device that is to be tested. The device checks whether it has been allocated the following transmissio... | 05/26/2009 |
| 7477877 | GSM radiated sensitivity measurement technique A method and apparatus for calculating the radiated sensitivity of a mobile terminal positioned in multiple test orientations for multiple combinations of frequency channel and mobile terminal configuration is described herein. Test equipment measures a reference se... | 01/13/2009 |
| 7437128 | Portable interference-generating device for use in CDMA mobile testing A portable interference-generating device for inducing desired frame error characteristics, such as desired frame error patterns and rates, at a mobile unit receiving a carrier signal having at least one data channel having a plurality of data frames. The induced fr... | 10/14/2008 |
| 7433652 | Electro-magnetic propagation modeling A generalized framework is disclosed in which a wide variety of propagation models can be cast in a matrix-based format using arbitrary matrix coefficients. Casting propagation models in the matrix-based framework enables efficient computer implementation and calcul... | 10/07/2008 |
| 7430413 | Method and device for simulating a radio channel The invention relates to a device and a method for simulating a radio channel, wherein a signal transmitted and received by more than one antenna is simulated. The method comprises supplying an input signal of each antenna to a similar delay line, each delay line co... | 09/30/2008 |
| 7421249 | Read-write processing apparatus and method for RFID tag A read-write processing apparatus communicates with an RFID tag provided with a semiconductor memory to exchange commands and responses through antenna coils. A condition under which only a carrier wave is transmitted is set prior to a communication with the RFID ta... | 09/02/2008 |
| 7415246 | Attenuation of high-power inbound RF signals based on attenuation of a T/R switch A method for determining attenuation of a transmit/receive switch for attenuating inbound RF signals begins by enabling the transmit/receive switch to provide a loop back configuration between a transmitter section and a receiver section of a radio frequency integra... | 08/19/2008 |
| 7409194 | Calibrating an RF transmitter A method for calibrating a radio frequency (RF) transmitter begins by mixing a modulated RF signal with an in-phase (I) component of a local oscillation or a quadrature (Q) component of the local oscillation to produce a baseband representation of the modulated RF s... | 08/05/2008 |
| 7398098 | Radio base apparatus, transmission power control method, and transmission power control program In a mobile communication system having a plurality of terminals including a diversity terminal, an adaptive array base station controls a down-link transmitting power waveform for a terminal establishing access such that transmitting power is decreased at a timing ... | 07/08/2008 |
| 7398056 | Channel estimation applique for multiple antenna wireless communications Multiple antenna wireless communication systems require accurate knowledge of the transfer function between all paths. This invention discloses a system wherein a test signal generator at a transmitter station and a facsimile generator at a receiver station go throu... | 07/08/2008 |
| 7395060 | Signal testing system A signal testing system is disclosed, which is capable of achieving a bi-directional wireless transmission measurement enabling mutual testing between device-under-tests and reference devices by configuring a symmetrical structure with circulators and multiplexers. ... | 07/01/2008 |
| 7392018 | Channel estimation applique for wireless communications A test signal generator at a transmitter station and a facsimile generator at a receiver station go through an acquisition and tracking process which aligns the two signals, removing errors in the time base of generation, the frequency offset of generation and the t... | 06/24/2008 |
| 7372920 | Method for detecting a signal and receiver system for the implementation of the method The method seeks a high-performance detection of a signal burst transmitted on the initiative of a sender on a radio channel listened to by a receiver system. The transmitted burst represents a predetermined digital sequence, serving for example to request access to... | 05/13/2008 |
| 7369846 | Delivery of mobile station operational and self-performance test results to network in response to encrypted request message A set of performance-related data that represents both normal and abnormal conditions in the network is determined and stored in a mobile station MS. The set or a sub-set of this data is transmitted to a computer for analysis upon a triggering event, and the MS user... | 05/06/2008 |
| 7369813 | Fast calibration of electronic components The number of measurements needed to calibrate an electrical device is reduced. Apparatus and methods minimize output of one or more unwanted signals by determining a calibration setting, in a minimal number of measurements, from determined distances to a best setti... | 05/06/2008 |
| 7366466 | Wireless communication device interconnectivity A wireless communication device that is attached or included in an electronic object, such as a portable computer, having its own separate communication system. The separate communication system has an antenna for receiving and transmitting wireless communications, ... | 04/29/2008 |
| 7366103 | Seamless roaming options in an IEEE 802.11 compliant network A communication protocol that provides load balancing and/or test pattern information between devices is described. A first embodiment of the protocol provides such information via a data frame that is transmitted a definitive time after a special DTIM beacon is tra... | 04/29/2008 |
