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Class Information
Number: 455/67.16
Name: Telecommunications > Transmitter and receiver at separate stations > Having measuring, testing, or monitoring of system or part > Phase measuring (e.g., group delay, propagation effect, etc.)
Description: Subject matter including means to measure the change in phase of propagating waves.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7236750 |
Techniques for correcting for phase and amplitude offsets in a MIMO radio device |
Jun. 26, 2007 |
| 7231184 |
Low overhead transmit channel estimation |
Jun. 12, 2007 |
| 7228115 |
Receiving method and receiver with high-precision signal estimation |
Jun. 5, 2007 |
| 7224942 |
Communications system employing non-polluting pilot codes |
May. 29, 2007 |
| 7221913 |
Effective time-of-arrival estimation algorithm for multipath environment |
May. 22, 2007 |
| 7218939 |
Estimation of a signal delay |
May. 15, 2007 |
| 7215971 |
Method and apparatus for compensation of Doppler induced error in a mobile handset |
May. 8, 2007 |
| 7213257 |
Determining phase linearity in CATV distribution systems |
May. 1, 2007 |
| 7203462 |
Antenna unit and radio base station therewith |
Apr. 10, 2007 |
| 7200414 |
Client-aiding with cellphones in a 150-KM radius area |
Apr. 3, 2007 |
| 7184714 |
Frequency domain estimation of IQ imbalance in a wireless OFDM direct conversion receiver using loopback connection |
Feb. 27, 2007 |
| 7184712 |
System and method for improving the quality of range measurement based upon historical data |
Feb. 27, 2007 |
| 7184708 |
Interference mitigation by adjustment of interconnect transmission characteristics |
Feb. 27, 2007 |
| 7181205 |
I/Q calibration |
Feb. 20, 2007 |
| 7174133 |
Systems and methods for determining the delay offsets of communication systems |
Feb. 6, 2007 |
| 7171164 |
Method of estimating downlink channel, and user equipment |
Jan. 30, 2007 |
| 7164725 |
Method and apparatus for antenna array beamforming |
Jan. 16, 2007 |
| 7164737 |
Method for estimating doppler frequency |
Jan. 16, 2007 |
| 7155171 |
Vector network analyzer applique for adaptive communications in wireless networks |
Dec. 26, 2006 |
| 7139581 |
Method and system for distance measurement in a low or zero intermediate frequency half-duplex communications loop |
Nov. 21, 2006 |
| 7139579 |
Relay and communication system |
Nov. 21, 2006 |
| 7130601 |
Determination of received signal strength in a direct conversion receiver |
Oct. 31, 2006 |
| 7123943 |
Method of generating directional antenna beams, and radio transmitter |
Oct. 17, 2006 |
| 7116998 |
Subtractive multipath delay detection |
Oct. 3, 2006 |
| 7113807 |
Base station and method for receiving and processing signal in the base station |
Sep. 26, 2006 |
| 7099640 |
Method distinguishing line of sight (LOS) from non-line of sight (NLOS) in CDMA mobile communication system |
Aug. 29, 2006 |
| 7095984 |
Base station apparatus and direction-of-arrival estimating method |
Aug. 22, 2006 |
| 7095993 |
Frequency auto-correction apparatus for CDMA multipath fading channel |
Aug. 22, 2006 |
| 7092706 |
Apparatus and method for signal strength compensation of highly time-variant mobile radio channels and reception unit for mobile radio transmission |
Aug. 15, 2006 |
| 7085240 |
Directed maximum ratio combining and scheduling of high rate transmission for data networks |
Aug. 1, 2006 |
| 7085327 |
Phasor fragmentation circuitry and method for processing modulated signals having non-constant envelopes |
Aug. 1, 2006 |
| 7079514 |
Mobile communication apparatus with antenna array and mobile communication method thereof |
Jul. 18, 2006 |
| 7072618 |
Adaptive threshold selection system and method for detection of a signal in the presence of interference |
Jul. 4, 2006 |
| 7058399 |
Search window delay tracking in code division multiple access communication systems |
Jun. 6, 2006 |
| 7046962 |
System and method for improving the quality of range measurement based upon historical data |
May. 16, 2006 |
| 7046965 |
Radio receiver and receiving method for controlling the beam-width of an antenna |
May. 16, 2006 |
| 7043252 |
Information transmission method for a wireless local network |
May. 9, 2006 |
| 7043275 |
Radio communication apparatus using adaptive antenna |
May. 9, 2006 |
| 7039001 |
Channel estimation for OFDM communication systems |
May. 2, 2006 |
| 7039098 |
Method and apparatus for base station and mobile station time calibration |
May. 2, 2006 |
| 7035594 |
Method and apparatus for testing and evaluating wireless communication devices |
Apr. 25, 2006 |
| 7035592 |
Radio device and method of calibration of antenna directivity |
Apr. 25, 2006 |
| 7031669 |
Techniques for correcting for phase and amplitude offsets in a MIMO radio device |
Apr. 18, 2006 |
| 7013113 |
Method and apparatus for co-channel interference measurements and interference component separation based on statistical signal processing in drive-test area |
Mar. 14, 2006 |
| 6999730 |
Line-of-sight radio communication terminal, method and program |
Feb. 14, 2006 |
| 6999728 |
Method and device for the location of a mobile telephone in a communications network |
Feb. 14, 2006 |
| 6996375 |
Transmit diversity and separating multiple loopback signals |
Feb. 7, 2006 |
| 6996371 |
Device for the analysis of electromagnetic signals |
Feb. 7, 2006 |
| 6983172 |
Method and apparatus for transmitting a traffic signal using an adaptive antenna array |
Jan. 3, 2006 |
| 6983125 |
Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency |
Jan. 3, 2006 |
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