| Patent Number |
Title Of Patent |
Date Issued |
| 7548595 |
Apparatus and method for fading frequency estimation |
June 16, 2009 |
| The invention relates to an apparatus and a method for estimating a fading frequency of incoming received waves in a receiving station of a radio communication system or radio transmission system. An object of the invention is to estimate a fading frequency efficiently and accurately |
| 7366228 |
Synchronization detecting apparatus |
April 29, 2008 |
| In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation process, if a Synch Word to |
| 7170925 |
CDMA receiver |
January 30, 2007 |
| In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discriminating the rece |
| 7145938 |
Apparatus producing continuous stream of correlation values |
December 5, 2006 |
| An apparatus includes a plurality of received-signal registers which receive and store therein a plurality of respective received-signal sequences, a selector which selects one of the received signal sequences stored in the received-signal registers, at least one code register which |
| 7133475 |
Radio receiver |
November 7, 2006 |
| The invention relates to a radio receiver which receives reception waves modulated with a frame being a sequence of slots and reproduces transmission information that is distributed to the slots. An object of the invention is to increase the reliability of channel inference and impro |
| 7062287 |
Transmission power control apparatus |
June 13, 2006 |
| In a transmission power control apparatus for measuring SIR, which is a ratio of a receive signal to an interference signal, and controlling transmission power of a mobile station in such a manner that the measured SIR will agree with a target SIR, a fading detector detects the rate of |
| 6909902 |
Radio base station equipment and mobile station equipment determining location of mobile station |
June 21, 2005 |
| This invention relates to a radio base station equipment and a mobile station equipment in a mobile communication system that operate as determination stations adapted for a predetermined navigation or associate with other radio base station(s) or mobile station(s) to radio-determine |
| 6757346 |
Code division multiplex radio equipment with interference canceler |
June 29, 2004 |
| When an antenna receives a signal, the signal is inputted to delayers through a frequency converter, A/D converters, quadrature demodulators, filters and simultaneously is inputted to a MUX. The receiving signal inputted to the MUX is transmitted to an interference canceler panel, and |
| 6754256 |
Searcher for CDMA receiver apparatus |
June 22, 2004 |
| A searcher for a CDMA receiver apparatus includes a correlator obtaining a correlation value between a spreading code sequence and a spreading code sequence within a received signal, and a non-linear processor carrying out a non-linear conversion to convert one of the correlation value a |
| 6335923 |
Mobile communication terminal and transmission power control method therefor |
January 1, 2002 |
| A mobile communication terminal receives a control command transmitted on a down-link from a base station and controls a transmission power so that a reception state on an up-link becomes approximately constant at the base station. The mobile communication terminal is provided with a mov |
| 5937005 |
Error rate measurement apparatus for a mobile radio communications system |
August 10, 1999 |
| An error rate measurement apparatus for a mobile radio communications system, which quickly and accurately measures the error rate of received signals on a real-time basis with simple hardware. The apparatus is equipped with a plurality of receivers for receiving signals from a single |
