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Class Information
Number: 375/224
Name: Pulse or digital communications > Testing
Description: Subject matter in which at least part of the system is tested.










Sub-classes under this class:

Class Number Class Name Patents
375/225 Data rate 452
375/226 Phase error or phase jitter 553
375/227 Signal noise 545
375/228 With indicator 241


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
7076213 Apparatus and method for testing voltage standing wave ratio in a W-CDMA mobile communication system Jul. 11, 2006
7068611 Method and apparatus for performing diagnostic tests using an assisting transceiver Jun. 27, 2006
7065149 Transmitter, the method of the same and communication system Jun. 20, 2006
7065286 Method and apparatus for testing optical fiber by using biorthogonal codes and Moore-Penrose generalized inverses Jun. 20, 2006
7061973 Data mode signaling system for PCM modem adaptation Jun. 13, 2006
7062227 Method and device for the estimation of a propagation channel from its statistics Jun. 13, 2006
7058729 Method and device for the synchronisation between two networks Jun. 6, 2006
7054781 Radio channel simulation May. 30, 2006
7050487 Method and circuit arrangement for determination of transmission parameters May. 23, 2006
7050488 Communication terminal apparatus and base station apparatus May. 23, 2006
7047457 Testing of a multi-gigabit transceiver May. 16, 2006
7043207 Fading frequency estimating apparatus May. 9, 2006
7043398 Method for operating a position measuring device May. 9, 2006
7035324 Phase-noise measurement with compensation for phase noise contributed by spectrum analyzer Apr. 25, 2006
7031400 Method of selecting a PCM modem signal constellation in relation to channel impairments Apr. 18, 2006
7027817 Method for transmitting an information of a mobile telecommunication system Apr. 11, 2006
7023905 Correlation and demodulation circuit for a receiver for signals modulated by a specific code Apr. 4, 2006
7023911 Method and apparatus for altering a round trip delay measurement in a telecommunication system to accurately position an echo canceller Apr. 4, 2006
7020191 Network device and method for detecting a link failure which would cause network to remain in a persistent state Mar. 28, 2006
7016403 Apparatus and method for determining the quality of a digital signal Mar. 21, 2006
7012955 Method and apparatus for direct sequence spread spectrum receiver using an adaptive channel estimator Mar. 14, 2006
7012956 Circuit for optimizing a delay line used to de-skew received data signals relative to a received clock signal Mar. 14, 2006
7012971 Channel quality assessment method and system for performing the same Mar. 14, 2006
7013257 Communication transmission impairment emulator Mar. 14, 2006
7010295 Method and system for automatic testing of network elements Mar. 7, 2006
7006561 Apparatus and method for detecting baudrate in a universal asynchronous receiver/transmitter Feb. 28, 2006
6999507 DMT bit allocation with imperfect TEQ Feb. 14, 2006
6993069 Simulation process of radiofrequency scenario in radio mobile environment and testing system employing said process Jan. 31, 2006
6993293 Method of predicting wireless signal power Jan. 31, 2006
6993442 Adaptive data collection Jan. 31, 2006
6990061 Method and apparatus for channel estimation Jan. 24, 2006
6990142 Process and device for estimating the impulse response of an information transmission channel, in particular for a cellular mobile telephone Jan. 24, 2006
6988207 Scan insertion testing of ASICs Jan. 17, 2006
6985444 Binning of results from loop qualification tests Jan. 10, 2006
6985538 Digital radio communication system and method Jan. 10, 2006
6980737 Method and apparatus for rapidly measuring optical transmission characteristics in photonic networks Dec. 27, 2005
6977960 Self test circuit for evaluating a high-speed serial interface Dec. 20, 2005
6973125 Apparatus for detecting data transmission rate and change thereof, and method therefor Dec. 6, 2005
6970497 Intermittent calibration apparatus Nov. 29, 2005
6967998 Method and apparatus for monitoring transmission quality Nov. 22, 2005
6967999 Method and apparatus to support multi standard, multi service base-stations for wireless voice and data networks Nov. 22, 2005
6963553 Method of adjusting a signal quality target to be reached in power control procedures in a CDMA radio communication network and a corresponding transceiver Nov. 8, 2005
6961370 Sweep method using digital signals Nov. 1, 2005
6961547 Wireless transmitter incorporating a synchronous oscillator in a translation loop Nov. 1, 2005
6959037 System and method for locating and determining discontinuities and estimating loop loss in a communications medium using frequency domain correlation Oct. 25, 2005
6959059 Radio signal receiving circuit detecting a synchronizing pattern Oct. 25, 2005
6956896 High accuracy receiver forward and reflected path test injection circuit Oct. 18, 2005
6954420 Method for displaying the modulation error of a multiple carrier signal Oct. 11, 2005
6952798 Method for determining the performance of a communications system Oct. 4, 2005
6950631 Active receiving array antenna Sep. 27, 2005

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