| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 08/04/2004 | CN1160887C Orthogonal frequency-division multiplex transmitting apparatus and method |
| 08/04/2004 | CN1160874C Apparatus and method for determining radio communication quality in mobile communication system |
| 08/04/2004 | CN1160703C Speech encoding method and apparatus, and sound signal encoding method and apparatus |
| 08/03/2004 | US6771936 Apparatus and method for wire or radio transmission information signal processing |
| 07/29/2004 | US20040146298 Optical switch |
| 07/28/2004 | EP0823152B1 Full duplex ultrawide-band communication system and method |
| 07/28/2004 | CN1516496A Transmission system including at least a coder |
| 07/28/2004 | CN1516113A Voice communication system and method for processing drop-out fram |
| 07/28/2004 | CN1159854C Interleave address generator and method thereof |
| 07/22/2004 | WO2004062283A1 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data |
| 07/22/2004 | WO2004040403A3 Lower complexity layered modulation signal processor |
| 07/22/2004 | WO2003077423A3 High speed analog-to-digital converter using a unique gray code having minimal bit transitions |
| 07/22/2004 | US20040141561 Ultra-wideband communication through twisted-pair wire media |
| 07/22/2004 | US20040141547 Transmission method for transmitting data symbols to or from users of an ultra bandwidth telecommunication system |
| 07/22/2004 | DE202004003762U1 Electronic unit for transferring sound pulses or signals directly into the body via electrodes applied to the skin surface, said unit having signal coding and amplifying sections separated by insulation of at least 8 mm |
| 07/21/2004 | EP1439679A2 Multicarrier transmission with variable guard intervals |
| 07/21/2004 | EP1439678A2 Multicarrier transmission with variable guard intervals |
| 07/21/2004 | EP1439677A1 Synchronisation symbol structure for OFDM system |
| 07/21/2004 | EP1052620B1 Sound encoding method and sound decoding method, and sound encoding device and sound decoding device |
| 07/21/2004 | EP1042861A4 Device and method for detecting pcm upstream digital impairments in a communication network |
| 07/21/2004 | CN1514998A Method and apparatus for inter operability between voice tansmission systems during speech inactivity |
| 07/21/2004 | CN1158646C Using gain-adaptive quantization and non-uniform symbol lengths for audio coding |
| 07/20/2004 | US6765517 Variable order sigma-delta modulator |
| 07/15/2004 | WO2004025842A3 System for efficient recovery of node-b buffered data following mac layer reset |
| 07/15/2004 | US20040139230 SIP service method in a network having a NAT |
| 07/15/2004 | US20040138879 Voice modulation apparatus and method |
| 07/15/2004 | US20040136317 Modulation scheme for fdd/tdd transceivers |
| 07/15/2004 | DE4333358B4 Schaltungsanordnung zur Informationsübertragung auf einer Zweidrahtleitung Circuitry for transmitting information on a two-wire line |
| 07/14/2004 | EP1436996A1 Interactive protocol for remote management of access control to scrambled data |
| 07/14/2004 | EP1436958A1 A digital implementation of multi-channel demodulators |
| 07/14/2004 | EP0772925B1 Non-linearly quantizing an information signal |
| 07/14/2004 | EP0727120B1 Method and apparatus for the transmission of variable rate digital data |
| 07/14/2004 | CN1157906C Receiver |
| 07/14/2004 | CN1157853C Digital information signal receiver, transmitter and transmitting method |
| 07/08/2004 | US20040133419 Method and apparatus for interoperability between voice transmission systems during speech inactivity |
| 07/08/2004 | US20040130471 Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
| 07/07/2004 | EP1435137A1 Apparatus and method for level-dependent companding for wireless audio noise reduction |
| 07/07/2004 | CN1157073C Interleaving process |
| 07/06/2004 | CA2148447C Process for transmitting and/or storing digital signals of multiple channels |
| 07/01/2004 | US20040125003 Lossless coding method for waveform data |
| 06/30/2004 | EP1434356A2 Turbo encoding with dummy bit insertion |
| 06/29/2004 | US6757331 Information insertion/detection system |
| 06/24/2004 | DE10256939A1 Störsicheres, enegieoptimiertes Funkübertragungsverfahren für Funkübertragungen mit großem Tastverhältnis Noise-immune, enegieoptimiertes radio transmission method for radio transmission with large duty cycle |
| 06/23/2004 | CN1155260C Embedding and extracting supplemental data in an information signal |
| 06/22/2004 | US6754258 Systems, methods and computer program products for averaging learned levels in the presence of digital impairments based on patterns |
| 06/22/2004 | US6754231 Robust header compression in packet communications |
| 06/22/2004 | CA2281696C Apparatus and method for rate determination in a communication system |
| 06/17/2004 | WO2004051591A2 Method for transmitting a digitized message of little information depth |
| 06/17/2004 | WO2004032344A3 Battery conservation for downhole telemetry |
| 06/17/2004 | US20040114402 Device for generating electromagnetic waves, method for operating a device of this type and method for modulating the electromagnetic waves to be generated using a device of this type in accordance with data to be transmitted |
| 06/16/2004 | EP1428374A1 Process, arrangement, devices for seizure of a shared telephone line |
| 06/16/2004 | EP1175670B1 Using gain-adaptive quantization and non-uniform symbol lengths for audio coding |
| 06/16/2004 | EP0841656B1 Method and apparatus for speech signal encoding |
| 06/16/2004 | CN1154321C Module and method for synchronizing timing between the first apparatus and coder |
| 06/16/2004 | CN1154283C Coding method and apparatus, and decoding method and apparatus |
| 06/16/2004 | CN1154087C Method of improving sound quality of low bit-rate audio coding systems, coder and decoder |
| 06/16/2004 | CN1154086C CELP transcoding |
| 06/15/2004 | US6751586 Audio decoding device with soft decision error correction by bit interpolation |
| 06/15/2004 | US6751262 Data transmission method |
| 06/15/2004 | US6751260 Detecting superimposed information channels for modem connections |
| 06/15/2004 | CA2301663C A method and a device for coding audio signals and a method and a device for decoding a bit stream |
| 06/09/2004 | EP1426925A1 Method and apparatus for speech decoding |
| 06/09/2004 | EP1425885A1 Method and system for transmitting data from a first data network into a second data network |
| 06/09/2004 | CN1153399C Method for improving current phonetic frame quality and radio system |
| 06/09/2004 | CN1153386C Method and system for digital channelisation and de-channelisation |
| 06/09/2004 | CN1153365C Transfer system adopting different coding principle |
| 06/09/2004 | CN1153356C SOVA Turbo decoder method, decoder and communication device thereof |
| 06/09/2004 | CN1153355C Channel encoding/decoding device and method |
| 06/03/2004 | US20040107092 Digital circuit transmission device |
| 06/02/2004 | EP1424781A1 Information transmission apparatus; information transmission method; information reception apparatus; and information reception method |
| 06/02/2004 | CN1502046A Radio wave pulse train navigation systems |
| 06/02/2004 | CN1501620A Automatic equalization system |
| 06/01/2004 | US6744819 System and method for selecting a data transmission mode |
| 05/27/2004 | US20040101132 Analog isolation system with digital communication across a capacitive barrier |
| 05/26/2004 | EP1157375B1 Celp transcoding |
| 05/26/2004 | EP1145222B1 Speech coding with comfort noise variability feature for increased fidelity |
| 05/26/2004 | CN1500323A Wireless clock synchronization |
| 05/26/2004 | CN1500322A Digital circuit transmission device |
| 05/26/2004 | CN1499763A Method and equipment for reaching synchronization to base station |
| 05/25/2004 | US6741708 Acoustic system comprised of components connected by wireless |
| 05/25/2004 | US6741659 Wireless infrared digital audio transmitting system |
| 05/25/2004 | CA2314400C Signal encoding for transmission of multiple digital signals over single physical medium |
| 05/19/2004 | EP1046233B1 Radio receiver |
| 05/19/2004 | DE10250396A1 Vorrichtung zum Erzeugen von elektromagnetischen Wellen, Verfahren zum Betreiben einer derartigen Vorrichtung und Verfahren zum Modulieren der mit einer derartigen Vorrichtung zu erzeugenden elektromagnetischen Wellen entsprechend zu sendender Daten An apparatus for generating electromagnetic waves, a method of operating such a device and method for modulating with such a device generating electromagnetic waves corresponding to data to be transmitted |
| 05/19/2004 | CN1497889A Joint detection receiving equipment and method without considering orthogonal code length |
| 05/19/2004 | CN1497863A Method of emitting data code element to user in ultra wide band telecommunication system |
| 05/19/2004 | CN1150680C Adaptive channel encoding method and device |
| 05/18/2004 | US6738428 Apparatus and methods for decoding a predictively encoded signal and removing granular noise |
| 05/18/2004 | US6738103 Receiver for digital broadcasting |
| 05/18/2004 | CA2167527C Sub-band coder with differentially encoded scale factors |
| 05/13/2004 | WO2004040403A2 Lower complexity layered modulation signal processor |
| 05/12/2004 | CN1496054A Transmission information system and method |
| 05/12/2004 | CN1496053A Transmission information system and method |
| 05/12/2004 | CN1496049A Channel coding method for communication system |
| 05/12/2004 | CN1495705A Multichannel vocoder |
| 05/12/2004 | CN1149798C Digital transmission system for transmitting an additional signal such as a surround sigal |
| 05/12/2004 | CN1149761C Protection method based on business in optical network |
| 05/12/2004 | CN1149568C Signal-processing method and device for block-coded audio signals of audio communication system |
| 05/11/2004 | US6735723 Apparatus and method for processing interleaving/deinterleaving with address generator and channel encoding system using the same |
| 05/06/2004 | WO2003098916A3 High-resolution image projection |