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Patent Searching and Data


Matches 301 - 350 out of 9,841

Document Document Title
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...  
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...  
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...  
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...  
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 ...  
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 ...  
WO/2002/041545A2
A system and method for synchronizing internal clocks of receiving stations of a locating system are described. A beacon transmits reference data packets at a known position. A first arrival time is compared to a second arrival time to d...  
WO2002007322A3
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...  
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 ...  
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 ...  
WO2001065702A3
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...  
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...  
WO2002001246A3
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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) ...  
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...  
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...  
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...  
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...  
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...  
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...  
WO2001052411A3
A transmitter is disclosed for transmitting a transmission signal via a transmission medium. The transmitter derives a prediction signal from the digital information signal in dependence on an array of prediction filter coefficients. The...  
WO2001020892A3
A telecommunications data transmission system (1) for communicating between a client's PC (2) and a server (3) of an internet service provider comprises transmission between a PCM codec modem (5) of the server (3) and a liner codec modem...  
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...  
WO2001024549A3
A method and system are disclosed for transmitting a digital representation of voice data. A first step of the method includes sampling and digitizing a voice signal and generating a first data stream having a bit rate of X bits per seco...  
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...  
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...  
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...  
WO2001041314A8
A method and radio device are provided for interleaving a stream of data (201) consisting of digital information symbols prior to transmission over a radio interface. A permutation is performed (202, 203, 401, 402) to the stream of digit...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2001/058024A1
A method of coding information for transmission over a communication channel involves differentially coding selected bits of an input sequence with respect to bits of a previous input symbol to generate a transmit sequence comprising a p...  
WO/2001/052411A2
A transmitter is disclosed for transmitting a transmission signal via a transmission medium. The transmitter derives a prediction signal from the digital information signal in dependence on an array of prediction filter coefficients. The...  
WO2001002929A3
A communications system (8) transmits digital signals using a compression code comprising a plurality of parameters including a first parameter. The parameters represent an audio signal comprising a plurality of audio characteristics, in...  
WO2000065713A3
Sample rate converters are known, and are used to convert a signal with a first sample rate (sampling frequency) into a signal with a second sample rate (sampling frequency). To obtain a flexible sample rate converter with sampling frequ...  
WO/2001/047203A2
The invention relates to a method and transmitting devices for transmitting and/or receiving information using waves. According to said method, an information signal is impressed onto a carrier wave, whose frequency is continuously modif...  
WO/2001/043367A1
A method and a system for implementing leaf node proxy in a network are disclosed. In one embodiment, a leaf node is switched to a standby state in response to a standby command. A leaf node self-identification ('self-ID') packet is synt...  
WO/2001/041314A1
A method and radio device are provided for interleaving a stream of data (201) consisting of digital information symbols prior to transmission over a radio interface. A permutation is performed (202, 203, 401, 402) to the stream of digit...  
WO/2001/037461A1
To generate a high-power modulated radio frequency (RF) signal (S¿OUT?) from an input low or medium frequency information signal (S¿IN?) the information signal is pulse-shaped in a quantifier (108) to form a digital signal (S¿D?) havi...  
WO2001005074A3
The invention concerns a method whereby the audio data of a source of useful signals (1) are separated (2) into a main dataflow (HD) and a secondary dataflow (ZD). The main dataflow (HD) contains at least as much information as required ...  

Matches 301 - 350 out of 9,841