Matches 151 - 200 out of 371 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
6836647 Device and method for CDMA-signal power estimation  
A system and method for estimating the power-level of a signal received at a mobile-station receiver operating in a wireless network according to a CDMA standard. An analog automatic gain...
6836105 Apparatus for power measuring receiver  
Power measuring receiver (PMR) methods and apparatus for measuring power of signals are provided in which a high frequency measuring circuit (HFMC), a conversion measuring circuit (CMC), and an...
6831953 Method of, and a radio terminal for, detecting the presence of a 2-FSK signal  
A method of, and terminal for, detecting the presence of a 2-FSK signal, the method comprising receiving ( 10 ) a 2-FSK signal, quadrature frequency down-converting ( 34,35,36 ) the received signal...
6819928 Speed esimation for digital cordless telephones  
In response to the resetting of a timer 6 , a received electric field level measuring unit 3 measures the received electric field level in a predetermined time, and a control unit 4 computes...
6785523 Self-correlation detection in automatic gain calibration  
An embodiment of the present invention provides an automatic gain control system for a wireless receiver that quickly differentiates desired in-band signals from high power out-of-band signals that...
6781424 Single chip CMOS transmitter/receiver and method of using same  
A single chip RF communication system and method is provided including a transmitter and a receiver. The RF communication system in accordance with the present invention can include an antenna that...
6760588 Method and apparatus for stabilizing communication in mobile communication system  
A mobile communication system includes a plurality of base stations in a communication service area connected to a packet communications network. A mobile station communicates with a second station...
6757537 Power control device and method for a mobile communication system  
A power control device and method in a mobile communication system. Upon receipt of a call request, a base station selects a call type corresponding to the call request. The base station includes a...
6741843 Method and arrangement for service-based indication and control of a service need  
The invention relates to a method and arrangement by means of which a mobile station (MS, 400 ) operating in a cellular network measures and indicates the field strength of a signal sent by a base...
6738364 Radio receivers and methods of operation  
A radio receiver in which the length of time that it takes to synchronize with a burst to be received is used as a measure of the quality of the channel over which the burst is transmitted.
6721547 In-band and out-of-band signal detection for automatic gain calibration systems  
An embodiment of the present invention provides an automatic gain control system for a wireless receiver that quickly differentiates desired in-band signals from high power out-of-band signals that...
6714779 Automated testing for cellular telephone system including emergency positioning  
A method for automatically testing cellular telephone equipment includes a method for determining a geographic location of a mobile unit. The system includes monitoring sites located, e.g., at high...
6714785 Handoff device and method for mobile communication system  
A device for performing a handoff in a mobile communication system. A mobile station transmits a handoff request message including a measured signal power value and information about a traveling...
6711390 Program related data in an FM RDS receiver  
Method for processing transmitter and program related data in an FM RDS receiver and receiver executing the method, providing a band scanning search for detecting FM RDS transmitters exceeding a...
6697616 Method and base station for functional testing of a transmission and reception path  
A method for functional testing of a transmission and reception path includes transmitting a first signal at a first transmission power level to a radio station and determining a first reception...
6683906 Radio communication apparatus  
A radio communication apparatus subjects each signal which is received via a multi-path and demodulated, to a Hadamard transform at each of fingers, by use of an M-ary quadrature coding scheme,...
6650872 Method and device for estimating a carrier-to-interference ratio in a radio communication system  
The carrier-to-interference ratio in a radio communication system is estimated by using measurements of the received signal strength in a communication channel within periods of time when...
6650912 Selecting paging channel mode  
A quick paging channel (QPCH) is used to receive paging indicators that indicate that a wireless communication device (WCD) has a message on a paging channel relating to, for example, an incoming...
6639909 Receiver having functions for cancelling DC offset and measuring carrier detection threshold value, and control method thereof  
An improved system and method for canceling a DC offset and measuring a carrier detection threshold value. A control circuit provides a signal based upon a frame synchronizing signal for shutting...
6625135 Method and apparatus for incorporating environmental information for mobile communications  
An apparatus and method for communicating between a first communication node and a second communication node in an area having a plurality of communication nodes is disclosed which comprises...
6625468 Digital portable telephone unit and method for playing back voice/sound in the same unit  
A digital portable telephone unit of the invention is equipped with: an antenna through which signal is transmitted and received; a radio section which conducts the frequency conversion of signal...
6625125 Method and device for measuring field strength of received signal in time-division multiple access  
Based on the results of the detection of a unique word in a received signal with a unique word detecting portion and the detection of a correct CRC in a received signal with a CRC calculating...
6608999 Communication signal receiver and an operating method therefor  
A communication signal receiver has a plurality of components. The components are arranged along at least one signal path and comprise a filter ( 130 a-b ) for processing a received signal and...
6587677 Apparatus for measuring specific absorption rates  
An apparatus for measuring the specific absorption rate (SAR) of a device ( 8 ) which generate electromagnetic fields. The apparatus includes a homogeneous solid spherical test phantom which has...
6577851 Impulse noise blanker  
A radio back-end integrated circuit that includes a blanking switch having a signal input which receives an IF signal, a control input, and a signal output. Also included is a demodulator having an...
6574472 Transceiver for amplification between stationary and mobile stations with radio channel recognition  
The invention is directed towards a transmitting/receiving device for amplification of the transmitted signals between a stationary transmitting station and a mobile transmitting station in a...
6564041 System and method providing improved FM carrier squelch system  
An improved squelch system ( 10 ) is provided in accordance with the present invention. The system includes a high-deviation subsystem ( 20 ) to detect a carrier with modulation, and a...
6564043 Method and arrangement for linearizing a radio receiver  
The invention pertains to a method and an arrangement for linearizing a radio receiver ( 20 ). The invention is advantageously applied in the reception circuits of mobile stations. A receiver...
6546234 Apparatus and method for compensating received signal strength indicator according to temperature  
An apparatus for compensating a received signal strength (RSSI) according to temperature. An average power detector detects average power of a received signal. An RSSI compensation value detector...
6534966 Methods and apparatus for power measuring receiver  
Power measuring receiver (PMR) methods and apparatus for measuring power of signals are provided in which a high frequency measuring circuit (HFMC), a conversion measuring circuit (CMC), and an...
6529733 Method of handoff control and a handoff control system using thereof  
A handoff control system which can decrease the probability of forced termination of communication by considering the time allowed for handoff processing for each mobile terminal is provided. A...
6526276 Electric field detecting method  
In a broadcasting channel receiving system of cellular radio telephone system, a signal received through an antenna 5 is demodulated with a carrier frequency formed by a frequency synthesizer 2 ...
6512788 RF output spectrum measurement analyzer and method  
The present invention provides an RF spectrum measurement analyzer and method and more particularly to a GSM output RF spectrum measurement analyzer and corresponding method. One preferred...
6509934 Directing an antenna to receive digital television signals  
An antenna is directed to optimally receive an advanced television signal. First, the strength of the signal is measured as a function of the azimuth angle of the antenna, and second the flatness...
6507622 Communication systems, sender and receiver  
To use high noise transmission lines, such as an electric wire, as the lines to transmit signals, it is imperative to reduce the level of signals. The present invention is provided with a sending...
6507602 Smoothing receiver channel estimates using spectral estimation  
A receiving apparatus comprises a receiver receiving signals via multiple propagation paths having different propagation delays and converting the signals to digital samples for processing. A...
6493544 FM signal quality detector during seek  
A vehicle radio includes a microprocessor-controlled tuner having a seek function. The tuner generates a station detect signal when a sufficiently strong signal is received, and the tuner also...
6487399 Mobile terminal employing 30kHz/200kHz carrier identification  
A method for use by a multi-mode, dual band mobile terminal ( 10 ) for identifying a presence of a GSM1900 carrier that is channelized into first channels having a bandwidth of 200 kHz, and for...
6456834 Mobile radio set for operation in a TDMA system  
The reception field strength of the RF carriers of adjacent channels and of the current channel are determined in a mobile radio set in a TDMA system. A plurality of individual measurements are...
6449464 Method of reporting signal quality measurements from a mobile terminal with enhanced demodulation algorithm  
Wireless communications mobile terminals demodulate incoming signals according to two different demodulation algorithms. The first algorithm is the primary algorithm used by the mobile terminal to...
6442378 Power level determination device in an RF booster for wireless communications  
A power level determination device provides an output voltage usable as a specific reference power level corresponding to each RF input power level. The device includes a peak detector, which...
6438363 Wireless modem alignment in a multi-cell environment  
In addition to aligning a first unit for proper forward link communications in a wireless environment, there is a method of alignment where a reverse link signal is transmitted from the first unit...
6438362 Method and apparatus for SIR measurement  
A method for measuring characteristics of a propagated radio-wave on the basis of a reference signal, wherein the reference signal is obtained by receiving and demodulating the propagated...
6408167 Radio device including a receiver and method of adjusting one of the high-frequency amplifier stages of a receiver  
A radio device includes a receiving part ( 45 ) formed by a high-frequency selective amplifier stage ( 50 ) including a frequency selective circuit ( 51 ) having a plurality of capacitive elements...
6404826 Iterative signal-to-interference ratio estimation for WCDMA  
A circuit is designed with an estimate circuit ( 132 ) coupled to receive a plurality of predetermined signals ( 416-418 ) from an external source. Each of the predetermined signals is spaced apart...
6389264 Distance measurement system for timing advance controlled systems  
A system is disclosed to operate within a multiple access system having remote devices that are located at varying distances from a central device using timing advance commands. The invention...
6380809 Method and apparatus for tuning oscillator to a selected frequency  
The present invention discloses an apparatus and method for tuning an oscillator to a selected frequency during power measurements of a neighbor list. In response to a received request for the...
6370370 Method for improving the wanted signal in a radio receiving unit  
It is known for a signal-strength detection unit to be used to detect the ratio of the input signal to the wanted signal obtained after it. A disadvantage in this case is that interference...
6332078 Receiver device and receiving channel setting method  
A receiver device, in which the receiving channel can be changed over to another, includes an RF unit which receives a plurality of channel frequency signals, a frequency conversion unit, an...
6317589 Radio receiver and method of operation  
A gain compensation loop suitable for a quadrature receiver comprises a signal strength comparator having in-phase and quadrature signals fed to respective inputs of the signal strength comparator....
Matches 151 - 200 out of 371 < 1 2 3 4 5 6 7 8 >