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WO/2003/001709A1 |
A transmission&sol reception apparatus capable of decoding a high−quality sound. A cellular telephone 1011 encodes sound data and outputs the encoded sound data. Furthermore, the cellular telephone 1011 learns quality improving data to...
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WO/2002/098156A1 |
The present invention proposes a method for enabling a subscriber entity to actively communicate in a communication network, a subscriber entity being identified by at least one assigned subscriber identity (IMSI, MSISDN), said communica...
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WO2001020786A9 |
An encoder uses an input file of data and a key to produce a group of output symbols. A group of output symbols with key I is generated by determining a weight, W(I), for the group of output symbols to be generated, selecting W(I) of the...
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WO/2002/091588A1 |
A sub-band adaptive differential pulse code modulation/encoding apparatus includes means (102, 103, 104, 105) having a predetermined asymmetric impulse response for receiving an audio signal and band-dividing the received audio signal in...
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WO/2002/084320A2 |
A method and apparatus for increasing the potential digital bit data rate potential for communication-to-be-added to Loran-C radio-frequency pulse navigation transmitters and the like without affecting the navigation capability and integ...
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WO/2002/082425A1 |
In a speech coding system with an encoder and a decoder cooperating with said encoder, the speech encoder comprises a pre-processor and an ADPCM encoder with a quantizer and step-size adaptation means, while the speech decoder comprises ...
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WO/2002/082426A1 |
In a speech coding system with a speech encoder and a speech decoder cooperating with said speech encoder, the speech encoder comprises a pre-processor and an ADPCM (adaptive differential pulse code modulation) encoder with a quantizer a...
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WO/2002/080370A2 |
The invention relates to a method and a device for the digital transmission of analogue signals, whereby an oversampling in analogue-digital and digital-analogue converters is carried out. A digital-analogue conversion is thus carried ou...
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WO/2002/071614A1 |
A frequency synthesizer (200) is provided that allows for a half-cycle division of the synthesized frequency. In a conventional sigma-delta fractional-N frequency synthesizer, a controllable divider is configured to allow for the divisio...
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WO2000024120A9 |
The present invention includes a system and method for ensuring reception of a communications signal. A modulating baseband signal with desired information is accepted, and a plurality of redundant spectrums is generated. Each redundant ...
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WO2000035122A9 |
A demultiplexer (402) for channel interleaving in communications systems with multiple carriers and/or transmitter diversity includes a distribution module (700) that distributes data bits in succession to successive transmitter antennas...
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WO/2002/065894A2 |
Endocardial pressure measurement devices, systems and methods for effective treatment of congestive heart failure and its underlying causes, in addition to other clinical applications. A representative device includes an implantable pres...
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WO/2002/065787A1 |
When TDM links are switched from the original TDM network to the destination (e.g. VoIP) via a data network acting as a backbone (ATM or IP), the transitions between theTDM network and the data network are made via media gateways. As for...
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WO/2002/065458A2 |
The disclosed embodiments provide a method and apparatus for interoperability between CTX and DTX communications systems during transmissions of silence or background noise. Continuous eight rate encoded noise frames are translated to di...
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WO/2002/058052A1 |
Described is a transmission system (10) comprising a transmitter (12) for transmitting an input signal to a receiver (14) via a transmission channel (16). The transmitter (12) comprises a splitter (20) for splitting up the input signal i...
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WO/2002/058053A1 |
An encoding method and a decoding method for digital voice data, capable of changing reproducing speeds in response to various digital contents and without sacrifice in voice clearness. The encoding method comprises the steps of generati...
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WO/2002/049303A1 |
A modulation method recognizing unit (61) recognizes modulation method in units of a burst based on a known series part of a received signal. A soft decision unit (62) performs soft decision of the received signal by the recognized modul...
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WO/2002/049218A1 |
An encoder for effecting encoding in such a way neither pre-echo nor post-echo is suppressed. An input time-series signal of low-frequency component including a high-frequency component produced during a local time is subjected to a pred...
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WO2000069192A9 |
A method for profiling disparate communications and signal processing standards begins with selection of a set of standards for analysis (32). Next, functions performed by the set of standards are identified (34) and ranked (36). A set o...
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WO/2002/047296A1 |
An analog filter comprises first and second arithmetic operation sections (2¿-1?, 2¿-2?) connected in series and each composed of processing circuits connetected in series. Each processing circuit includes an S/H circuit of plural stag...
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WO/2002/045415A1 |
A data processor which realizes an AV data transmitting/receiving system of a lower cost. A reception buffer monitor circuit (21) monitors the quantity of received data stored in a reception buffer (6). When a stored data quantity increa...
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WO/2002/041504A2 |
The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator ...
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WO/2002/041651A2 |
The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator ...
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WO/2002/037848A1 |
A method of transferring between communication channels of differing bandwidth, the method including the steps of: establishing data communications on a first channel, the first channel having a first bandwidth: in response to a trigger ...
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WO/2002/037768A1 |
An initiator has logical devices (A,B,C). A target to obtain services from the initiator designates the ID of provided services and the directory ID indicating a directory where the information concerning a logical device is stored, and ...
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WO/2002/032133A1 |
A signal transmitter and a signal receiver comprises a time base compression part (101) for compressing an audio signal on a time base to output the compressed signal as a time base compressed audio signal and a multiplexing part (102) f...
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WO/2002/027949A2 |
Signal parameter information can be transmitted from a first communications device to a second communications device. For example, communications can be received at the first communications device from the second communications device, a...
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WO/2002/021526A1 |
Processing an audio signal is provided, which processing comprises conversion (5) of the audio signal into a digital signal by a noise-shaping modulation (7), compressive encoding (3) of the digital signal at a predetermined sampling rat...
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WO/2002/021525A1 |
Estimating a compression gain obtainable in compressing a given audio signal, comprising extracting a signal power in a selected frequency band of the given audio signal, and obtaining an estimation of the compression gain by correlation...
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WO/2002/017318A1 |
Method and signal processing apparatus for reducing the number of bits of a digital input signal (M¿i?) comprising the steps of adding a pseudo-random noise signal (N¿a?) to the digital input signal (M¿i?) to obtain an intermediate si...
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WO/2002/017300A1 |
A digital signal is converted by an analyzer (11) into its spectrum. A spectrum analyzing unit (12) specifies a set of a predetermined number of bands in order of correlation of the distribution of the spectrum, among the bands defined b...
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WO/2002/009380A2 |
A digital data modulator (Fig. 1) is coupled to a source (IN) of a digital data signal. An encoder (10) encodes the digital data using a variable pulse width code. A pulse signal generator (20, 25) generates pulses representing edges of ...
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WO/2002/009091A1 |
A device and a method for compressing signal information by removing (thinning out) the signal component of a signal in a specific frequency band. Firstly an input time-series signal (e.g., a PCM signal) is converted by an analyzer (11) ...
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WO/2002/007322A2 |
Coding a data stream comprising: channel coding (11) respective partitions of a given part of the data stream with different error protection rates to obtain a coded data stream (WS1), and including (20, 14) length information (lf) conce...
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WO/2002/007326A1 |
Coding of a data stream is provided, the data stream comprising at least one marker out of a predetermined set of at least two mutually different markers, the marker indicating a start of a given part of the data stream, wherein the at l...
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WO/2002/007061A2 |
A speech communication system and method that has an improved way of handling information lost during transmission from the encoder to the decoder. More specifically, the improved speech communication system more accurately recovers from...
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WO/2002/001246A2 |
A radio frequency identification (RFID) tag device having a pulse position modulation (PPM) decoder circuit which calculates a relative frequency relationship between an internal oscillator of the RFID tag device and an external PPM sour...
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WO/2001/097212A1 |
The spectrum of a PCM signal is separated into bands. A combination is designated out of the combinations of the reference band including the highest frequency and the other bands so that the designated combination has the highest correl...
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WO/2001/093467A1 |
In a PCM modem system (10), determining the infidelity of the $g(m)-law or A-law quantizer (20) at the central-office (18) and adjusting the transmit constellation at the analog modem AM (12) and/or adjusting Viterbi-decoder (62) thresho...
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WO/2001/082489A1 |
The processor (24) retrieves from a memory (22) values of a signal recovered from received wireless signal and demultiplexes and de-interleaves them simultaneously. The system can be operated in reverse to produce a multiplexed, interlea...
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WO/2001/069794A1 |
A memory address generator (12) generates a memory address. A multiplier (15) reads out the value of a replacing pattern of a row corresponding to a row number outputted from a memory (14) where the row-replacing pattern of a matrix is s...
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WO/2001/067618A1 |
A puncturer (102) comprises an input memory (201) for storing input data temporarily, a control circuit (202) for determining the data to be combined, a switch (203) for selecting the data to be combined under control of the control circ...
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WO/2001/065732A2 |
A system and method for increasing the performance of a digital return path in a hydrid-fiber-coax television system using baseband serial optical transport, receives an analog composite return path waveform at a comparator input to a di...
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WO2000048170A9 |
A method and apparatus for CELP-based to CELP-based vocoder packet translation. The apparatus includes a formant parameter translator and an excitation parameter translator. The formant parameter translator includes a model order convert...
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WO/2001/065702A2 |
A modulation method for Frequency Division Duplex/Time Division Duplex (FDD/TDD) transceivers is provided. The invention eliminates the need for a burst mode controller for both FDD and TDD, as well as SAW bandpass filters and dielectric...
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WO/2001/059765A1 |
A speech encoding system and method for encoding a speech data signal including a number of frames. The speech encoding system includes a speech data rate determinator and a number of speech data signal encoders. The speech data rate det...
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WO/2001/059764A1 |
An error concealment method is for improving the speech signal quality at the receiving end in speech transmission systems is described particularly, it relates to a method of receiving speech signals which have been encoded through spee...
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WO/2001/058059A1 |
In a PCM modem system in which equivalence classes are used to communicate information from a transmitter to a receiver, a method is provided to solve the problem of 180° phase reversals in the communications channel which result in a g...
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WO/2001/057877A1 |
A sampling system includes an input terminal for receiving a data signal having a signal component and possibly a noise component. A sampler samples the data signal at a sample rate set in responsive to a control signal. A noise detector...
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WO/2001/058058A1 |
A system and method for shifting the relative phases of a PCM data frame and a network RBS frame by one or more symbols is disclosed. The method includes determining whether or not RBS is present (100). If RBS is present, the slots affec...
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