Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 13 - Code division multiplex systems
Patents for H04J 13 - Code division multiplex systems (21,510)
08/1998
08/26/1998CN1191432A Symbolic division multiple communication apparatus
08/26/1998CN1191431A Symbolic division multiple communication apparatus
08/25/1998US5799035 Digital circuit for differential receiver for direct sequence spread spectrum signals
08/25/1998US5799011 CDMA power control channel estimation using dynamic coefficient scaling
08/25/1998US5799010 Code division multiple access (CDMA) communication system
08/25/1998CA2124887C Automatic gain control apparatus
08/20/1998WO1998036577A1 Predictive coding method and decoding method for dynamic image
08/20/1998WO1998036505A1 Method of reducing interference, and radio system
08/19/1998EP0859485A2 Code division multiplex communication system
08/19/1998EP0859475A2 Direct sequence spread spectrum communication system
08/19/1998EP0859471A2 Code division multiplex communication system
08/19/1998EP0858695A1 Apparatus and method for digital data transmission
08/19/1998CN1191045A Control message transmission in telecommunications system
08/18/1998US5796776 Code sequence generator in a CDMA modem
08/18/1998US5796774 Spread spectrum communication apparatus with conversion of input patterns to uniform spectral patterns
08/18/1998US5796772 Multi-band, multi-mode spread-spectrum communication system
08/18/1998CA2077343C Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
08/12/1998EP0858175A2 Receiver for pilot aided code division multiple access communication
08/12/1998EP0857376A1 Data transmission method, transmitter, and receiver
08/12/1998CN1190510A Using orthogonal waveforms to enable multiple transmitters to share single CDM channel
08/11/1998US5793797 Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
08/11/1998US5793794 Spread spectrum receiving apparatus
08/11/1998US5793759 Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes
08/11/1998US5793758 Method and system for wireless communication of a datagram
08/06/1998WO1998034402A2 Method and apparatus for line or frame-synchronous frequency hopping of video transmissions
08/06/1998WO1998034381A1 Data transmission method and radio system
08/06/1998WO1998034367A1 Method, system and mobile communication unit for communicating over multiple channels in a wireless communication system
08/05/1998EP0744101B1 Method and apparatus for multiuser-interference reduction
08/05/1998CN1189725A Receiving unit, receiving method and terminal unit for use with radio system
08/04/1998US5790590 Matched filter circuit
08/04/1998US5790588 Spread spectrum transmitter and receiver employing composite spreading codes
08/04/1998US5790587 Multi-band, multi-mode spread-spectrum communication system
08/04/1998US5790549 Subtractive multicarrier CDMA access methods and systems
08/04/1998US5790534 Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
08/04/1998CA2149096C Transmission power control method and transmission power control apparatus
08/04/1998CA2149095C Transmission power control method and communication system using the same
08/04/1998CA2149094C Transmission power control method of a spread-spectrum communication system, and spread-spectrum communication system employing the control method
07/1998
07/31/1998CA2228204A1 Cdma receiver employing successive cancellation of training-signal interference
07/29/1998EP0855116A1 Burst mode preamble
07/29/1998CN1189265A Rake receiver architecture for a mobile demodulator used in a CDMA communication system
07/29/1998CN1189073A Apparatus and method for tracking power level of received signal in code division multiple access communication system
07/29/1998CN1189030A Receiving apparatus, receiving method, and terminal unit for use with radio system
07/23/1998WO1998032248A1 Signalling system
07/23/1998CA2277375A1 Signalling system
07/22/1998EP0854588A2 Power control and carrier synchronization in a cellular mobile telephone system
07/22/1998EP0515675B1 Synchronous spread-spectrum communications system and method
07/22/1998CN1188356A Terminal unit for use with radio system and searching method
07/22/1998CN1188355A 发射机和接收机 Transmitter and receiver
07/22/1998CN1188349A Multistage interference canceller
07/22/1998CN1188310A Information signal duplication control system
07/21/1998US5783989 For monitoring a protected area and sounding an alarm
07/15/1998EP0853429A2 Information signal duplication control system
07/15/1998EP0853389A2 Terminal unit using Rake receiver and searching method
07/15/1998CN1187917A Method and apparatus for determining signal strength in spread spectrum communication system having variable data rate
07/15/1998CN1187744A Spread spectrum communication system
07/15/1998CN1187743A CDMA communication system and its transmission power control method
07/14/1998US5781584 Code acquisition and tracking circuit using switched matched filter and sliding correlators
07/14/1998US5781583 Method and system for communication over multiple channels in a spread spectrum communication system
07/14/1998US5781542 Information communication system using multi-code CDMA mode
07/14/1998US5781152 Method and circuit for the reception of signals for positioning by satellite with elimination of multiple-path errors
07/13/1998CA2226811A1 Information signal duplication control system
07/09/1998WO1998029963A1 Method for generating dummy frequencies for frequency hard handover in code division multiple access mobile communication system
07/08/1998EP0852432A2 Multipath PN code acquisition in a spread spectrum receiver
07/08/1998EP0852431A2 Threshold setting for PN code acquisition
07/08/1998EP0852086A1 Method and apparatus for transporting auxiliary data in audio signals
07/08/1998CN1187096A Radiocommunication appartus, and radiocommunication system
07/07/1998US5778023 Data reproducing apparatus for spread spectrum signal
07/07/1998US5777990 Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
07/02/1998WO1998027802A2 Power spectral density technique
07/01/1998EP0851612A1 Signal transmitting method, mobile station device, and base station device for cdma mobile communication system
07/01/1998EP0851611A2 CDMA Cellular Radio Transmission System
07/01/1998EP0851610A2 Code division switching scheme
07/01/1998EP0851609A2 Transceiver in base station for communicating with high-speed and low speed communication spread spectrum mobile users
07/01/1998EP0851603A2 System and method for spread spectrum code position modulation and wireless local area network employing the same
07/01/1998EP0851601A2 CDMA multi-code radio reception apparatus
07/01/1998CN1186582A Method and apparatus for providing variable rate data in communications system using statistical multiplexing
07/01/1998CN1186534A Advanced embedded code hopping system
07/01/1998CN1186402A Method of handing off and wireless communication device
07/01/1998CN1186389A SIR measurement apparatus
06/1998
06/30/1998US5774494 Frequency error correction device of a spread-spectrum communication receiver
06/30/1998US5774493 Sequence constructions for delay-and-correlate transmitted reference signaling
06/25/1998WO1998027677A2 Method and arrangement for wireless data transmission
06/25/1998WO1998027504A2 Method and apparatus for embedding auxiliary data in a primary data signal
06/25/1998WO1997050194A3 A method of controlling initial power ramp-up in cdma systems by using short codes
06/25/1998CA2273993A1 Method and apparatus for embedding auxiliary data in a primary data signal
06/24/1998EP0849905A2 CDMA Multi-code transmitter
06/24/1998EP0849887A2 Circuit and method for tracking finger off-set in a spread-spectrum rake receiver
06/24/1998EP0849886A2 Multistage interference canceller for a code division multiple access communications system
06/24/1998CN1185880A Method and apparatus for determining coding rate in a wireless communication system
06/24/1998CN1185705A Wireless telephone set whose receiving-code divided into multi-address signal and method thereof
06/24/1998CN1185691A Code multi-way multiplex transmission device
06/24/1998CN1185689A Code multi-way multiplex radio device
06/23/1998US5771288 Multiple access coding for radio communications
06/23/1998US5771229 Method, system and mobile communication unit for communicating over multiple channels in a wireless communication system
06/18/1998WO1998026526A1 Method and apparatus for dynamic channel configuration
06/18/1998WO1998026518A1 A circuit and method for controlling the power used by a portable radiotelephone
06/18/1998WO1998017077A3 Channel allocation method and radio system using a combination of tdma and cdma
06/17/1998EP0848503A2 CDMA chip synchronization circuit
06/17/1998CN1185266A Mobile station user group operation
06/17/1998CN1185250A Base station equipment, and method for steering antenna beam
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