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JP2013042253A |
To provide a receiving device and method, and communication system and method, capable of efficiently receiving signals by executing error correction and decryption and shortening required time for the error correction and decryption, us...
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JP5153036B2 |
Improved techniques for multilevel coding of a stream of information bits in a communication system are disclosed. The stream of information bits is separated into portions, and each of the portions is associated with a different level o...
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JP2013012970A |
To improve the trackability to frequency variation of a sampling clock signal at an input side.An asynchronous-type sampling rate converter 1 comprises: a converting circuit 11; and a conversion-ratio calculation circuit 12, and the circ...
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JP5116813B2 |
A traffic control method, a traffic controlling device, and a terminal are provided, which relate to the field of communications technology. The traffic control method includes the following. A working temperature of equipment is monitor...
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JP5086416B2 |
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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JP5037585B2 |
A technique for maintaining a predefined transmission quality in a wireless Metropolitan Area Network (MAN). Each of a plurality of Local Area Networks are coupled to a corresponding router. Each router is coupled to one or more transcei...
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JP5006189B2 |
Methods and apparatus for encoding and decoding multimedia frames are presented. The method comprises encoding a set of acquisition frames including a viewable frame, each frame comprising one or more intra-coded portions and one or more...
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JP4970686B2 |
Cordless communication techniques for cordless communication devices having a handset unit and a base unit are provided. Such techniques can utilize a modulation method for Frequency Division Duplex/Time Division Duplex (FDD/TDD) that ov...
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JP4950407B2 |
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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JP4916521B2 |
A high quality speech is reproduced with a small data amount in speech coding and decoding for performing compression coding and decoding of a speech signal to a digital signal. In speech decoding method according to a code-excited linea...
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JP4912816B2 |
Coding systems that provide a perceptually improved approximation of the short-term characteristics of speech signals compared to typical coding techniques such as linear predictive analysis while maintaining enhanced coding efficiency. ...
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JP4906275B2 |
Input/output (I/O) operation requests from pageable storage mode guests are interpreted without host intervention. In a pageable mode virtual environment, requests issued by pageable storage mode guests are processed by one or more proce...
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JP4864201B2 |
A system and method for processing an audio signal and including a scalable audio coder (300) and a decoder. The coder (300) includes a multi-resolution transform processor (310), such as a modulated lapped transform (MLT) transform proc...
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JP4843142B2 |
Techniques like Huffman coding can be used to represent digital audio signal components more efficiently using non-uniform length symbols than can be represented by other coding techniques using uniform length symbols. Unfortunately, the...
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JP4834874B2 |
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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JP4822910B2 |
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JP2011234282A |
To improve communication quality.An encoding system selection unit C113 outputs bits of signals received previously to a second encoding unit C115, and outputs bits of retransmitted signals to a third encoding unit C116. The second encod...
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JP4813104B2 |
A communication apparatus and display method are capable of displaying one frame of a plurality of frames, and displaying automatically an appropriate frame for a user in the case that there are changes in display contents. A display par...
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JP4792613B2 |
In order to improve the accuracy of an excitation source for a band-spreading apparatus and to generate a wide-band signal having no gaps, an a band-widening section generates a prediction coefficient alpha W of a wide-band speech signal...
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JP4777571B2 |
Methods and devices for sending, transmitting and/or receiving information by means of waves, in which an information signal of a carrier wave is impressed, whose frequency is continuously changed to form at least one carrier sweep in a ...
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JP4758060B2 |
Fast channel changing in digital-television-based entertainment networks can be implemented, for example, by electing to tune to channels at opportune tuning times. In an exemplary implementation, a method includes: receiving a channel c...
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JP4746909B2 |
The present invention relates to a pre-processing of auxiliary data of a video sequence in order to enable improved processing results for applying picture improvement algorithms. Irregularities occurring within an auxiliary data field p...
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JP4746225B2 |
A method and apparatus for performing multiple descriptive source coding in which a plurality of homogeneous encoders are advantageously employed in combination with a corresponding plurality of advantageously substantially identical dec...
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JP4741130B2 |
Near optimum repetition or puncturing patterns are possible when applying rate matching after first interleaving. The presented algorithm in particular avoids that adjacent repeated bits are separated considerably more than the average r...
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JP4735268B2 |
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JP4728500B2 |
An interleaving/deinterleaving processing method, a channel encoding system using it and a computer readable recording media for realizing it is provided. The interleaver includes: an interleaving storing unit for storing data sequence; ...
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JP4717035B2 |
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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JP4711099B2 |
The present invention relates to a transceiver which provides a high-quality decoded voice. A mobile telephone 1011 encodes voice data, and outputs the encoded voice data. Furthermore, the mobile telephone 1011 learns quality-enhancement...
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JP4701018B2 |
Data communication using wireless service discovery is continuously provided even if a radio wave condition temporarily deteriorates or movement of an apparatus occurs. If a temporary deterioration in wireless radio wave environment is f...
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JP4700207B2 |
An apparatus, method and system provide for variable encoding levels for encoding of in-band control messages in wireless telecommunication systems. In the various embodiments, ANSI-136 handoff and geolocation messages may be encoded uti...
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JP4696449B2 |
An encryption apparatus capable of effectively preventing encryption data from being illegally generated is provided. Based on apparatus identification data of an integrated circuit (IC), which is input from a computer, a secure applicat...
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JP4690356B2 |
A fixed codebook response is able to better characterize an input signal of a vocoder because the entries of the fixed codebook are tailored to the input signal being processed. A uniformly distributed random noise signal is stored in a ...
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JP2011097435A |
To reliably identify a signal, which is transmitted from a wireless transmitter, from noise when performing intermittent communication of a reduced ON duty while reducing transmission power to about the same transmission power as that of...
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JP4680359B2 |
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(D) of the...
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JP4680390B2 |
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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JP4679049B2 |
A coding apparatus capable of reducing a circuit scale and also reducing the amount of coding processing calculation is disclosed. In this apparatus, frequency domain conversion section (103) performs a frequency analysis of the signal s...
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JP4673991B2 |
In an apparatus and method for performing a hand-off in a mobile communication system, a mobile terminal and two base stations transmit and receive two different transmission signals produced from a single communication signal in a soft ...
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JP4659216B2 |
The quality of comfort noise generated by a speech decoder during non-speech periods is improved by modifying comfort noise parameter values normally used to generate the comfort noise. The comfort noise parameter values are modified in ...
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JP2011055159A |
To transfer a packet required for reproduction processing without losing the packet even when a transfer rate is low.A conversion section 105 in a digital television display device 100 includes: a reception section 201 for receiving pack...
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JP4651259B2 |
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. If RBS is present, the slots affected by...
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JP4653585B2 |
The present invention relates to synchronizing a terminal and a server in a shadow area of service in a push-to-talk (PTT) service system. An alive report packet is periodically transmitted to a server by a terminal having no permission ...
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JP4652467B2 |
A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC-hs layer reset. The RNC generates a radio resource control (RRC) message with a MAC-hs reset indication. The MAC reset ...
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JP4649735B2 |
To perform encoding so that the quality cannot be degraded. Mixing parts 51-1 and 51-2 mix a band signal A0 and a band signal A1 on prescribed conditions respectively. Since mixing signals MA0 and MA1 which have high mutual correlation e...
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JP4652388B2 |
A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC-hs layer reset. The RNC generates a radio resource control (RRC) message with a MAC-hs reset indication. The MAC reset ...
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JP4645868B2 |
To provide a digital signal processing method capable of further improving the waveform reproducibility of a digital signal, a learning method, and their apparatus, and program storage media therefor. A digital audio signal D10 is catego...
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JP4645869B2 |
To provide a digital signal processing method capable of further improving the waveform reproducibility of a digital signal, a learning method, and their apparatus, and a program storage media therefor. In this digital signal processing ...
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JP4639441B2 |
A digital signal of which input data has been segmented as block each having a predetermined data amount and highly efficiently encoded along with an adjacent block is decoded, edited, and then highly efficiently encoded. A delay that ta...
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JP4634711B2 |
The invention relates to the control of access of various appliances of an installation which are connected to a telephone line. The appliances have a priority level. There is provision for the dispatching, on the request of an appliance...
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JP2011029970A |
To provide a digital radio system that prevents a sound that is hard to hear from being output from a terminal device that receives and demodulates frames even if data in the frames are delayed or missing.In the digital radio system incl...
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JP2011023982A |
To provide an amplitude limiting circuit that limits any digital signal to a desired amplitude, even if a sampling rate is converted at a following stage, and to provide a digital processing apparatus with the circuit.The amplitude limit...
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