Patent application number | Description | Published |
20110055539 | INFORMATION PROCESSING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM HAVING STARTUP/SHUTDOWN CONTROL PROGRAM STORED THEREIN - An information processing apparatus includes a nonvolatile memory, a volatile memory, and a process control section. A startup program to be required when starting up the information processing apparatus has previously been stored in the nonvolatile memory. When a command to start up the apparatus is received, it is determined whether or not the startup program is present in the volatile memory. When the startup program is absent, the startup program is loaded from the nonvolatile memory into the volatile memory. Thereafter, when a command to turn off the power of the information processing apparatus is received, supply of power to other components of the information processing apparatus than the volatile memory is stopped while maintaining supply of power to the volatile memory, thereby to shutdown the power of the information processing apparatus. | 03-03-2011 |
20110237326 | DATA AUTHENTICATION METHOD AND DATA AUTHENTICATION SYSTEM - A storage means which can be accessed by an authentication apparatus stores content data, a first digest table including primary digest values corresponding to a plurality of data portions constituting the content data, a second digest table including secondary digest values corresponding to a plurality of data portions of the first digest table, and a digital signature generated from the second digest table. In a first reading step, the second digest table and the digital signature are read out from the storage means into a memory of the authentication apparatus. In a first authentication step, the authenticity of the content data is verified using the digital signature read out into the memory and the second digest table read out into the memory. | 09-29-2011 |
Patent application number | Description | Published |
20100266059 | RADIO COMMUNICATION APPARATUS CAPABLE OF SWITCHING MODULATION SCHEMES - A radio communication apparatus that is capable of switching modulation schemes. The radio communication apparatus includes a QPSK modulation signal generator, a QAM modulation signal generator, a transmission radio, and a common transmission power amplifier. The QPSK modulation signal generator modulates transmission data by a QPSK modulation scheme and outputs a QPSK modulation signal. The QAM modulation signal generator modulates transmission data by a QAM scheme and outputs a QAM modulation signal. The transmission radio receives the QPSK modulation signal or the QAM modulation signal and outputs a transmission signal, which is amplified by the common transmission power amplifier. The QPSK modulation signal generator and the QAM modulation signal generator each output signal component that make an average transmission power of the QAM modulation signal in the common transmission power amplifier smaller than an average transmission power of the QPSK modulation signal in the common transmission power amplifier. | 10-21-2010 |
20110200086 | RADIO COMMUNICATION APPARATUS CAPABLE OF SWITCHING MODULATION SCHEMES - A transmitting apparatus includes a modulation signal generating section that generates a modulation signal by modulating transmission data using one of a plurality of modulation schemes. The plurality of modulation schemes include a first modulation scheme, a second modulation scheme, and a third modulation scheme, where the first modulation scheme has maximum m-ary modulation value, the second modulation scheme has a lower m-ary modulation value than the first modulation scheme, and the third modulation scheme has a lower m-ary modulation value than the second modulation scheme. The transmitting apparatus also includes a pilot signal generating section that generates a pilot signal having one of a plurality of amplitudes, the pilot signal having a lower amplitude than a maximum amplitude of the first modulation scheme. The transmitting apparatus further includes a selection section that selects the modulation signal or the pilot signal according to a frame timing signal and generates a transmission quadrature baseband signal, a radio section that converts the transmission quadrature baseband signal to a radio signal, an amplifying section that amplifies the radio signal, and an antenna section that transmits the amplified radio signal. | 08-18-2011 |
20120236962 | RADIO COMMUNICATION APPARATUS CAPABLE OF SWITCHING MODULATION SCHEMES - A transmitting apparatus, includes a signal generator that generates a modulation signal by modulating transmission data using one of a plurality of modulation schemes, a first modulation scheme having a higher m-ary modulation value than other modulation schemes and a pilot signal generator generates a pilot signal. An orthogonal frequency division multiplexing (OFDM) signal generator generates an OFDM signal by selecting the modulation signal and the pilot signal according to the frame timing signal. The OFDM signal is converted to a radio signal, is amplified and is transmitted to an antenna. The pilot signal is inserted in the OFDM signal per a predetermined OFDM symbol and per a predetermined subcarrier and has a lower amplitude than a maximum amplitude of the first modulation scheme in an in-phase-quadrature (IQ) plane. | 09-20-2012 |
20120236966 | MODULATION METHOD AND RADIO COMMUNICATION SYSTEM - An input digital signal is periodically and alternately subjected to first modulation and second modulation, being thereby converted into a pair of a baseband I signal and a baseband Q signal. The first modulation and the second modulation are different from each other. The pair of the baseband I signal and the baseband Q signal are outputted. The first modulation may be at least 8-signal-point modulation while the second modulation may be phase shift keying. | 09-20-2012 |
Patent application number | Description | Published |
20100205511 | ENCODING METHOD, ENCODER, AND DECODER - A low-density parity check convolution code (LDPC-CC) is made, and a signal sequence is sent after subjected to an error-correcting encodement using the low-density parity check convolution code. In this case, a low-density parity check code of a time-variant period (3 | 08-12-2010 |
20100251061 | TRANSMISSION DEVICE - Provided is a transmission device which improves the error rate characteristic upon decoding when performing error correction encoding by using a self-orthogonal code or an LDPC-CC in a communication system using a communication path having a fading fluctuation, multi-value modulation, or MIMO transmission. In the transmission device, the self-orthogonal encoding unit ( | 09-30-2010 |
20100269009 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - There is provided an encoder that provides a termination sequence with a simple structure for LDPC-CC encoding and reduces an amount of the termination sequence transmitted to a transmission line. The LDPC-CC encoder ( | 10-21-2010 |
Patent application number | Description | Published |
20100202562 | TRANSMISSION DEVICE, RECEPTION DEVICE AND RADIO COMMUNICATION METHOD - A transmitting apparatus includes a first OFDM modulator that generates a first OFDM modulation signal by modulating a first information signal using a first modulation scheme, the first OFDM modulation signal having a plurality of subcarriers. A second OFDM modulator generates a second OFDM modulation signal by modulating a second information signal using the first modulation scheme, the second OFDM modulation signal having a plurality of subcarriers, and that generates a third OFDM modulation signal by changing a second position in an in-phase quadrature-phase plane in which a signal point of the second OFDM modulation signal is positioned, to a third position, the third position being different from a first position in the in-phase quadrature-phase plane in which a signal point of the first OFDM modulation signal is positioned. A multiplexer generates a multiplexed signal to be transmitted in a common frequency band, by multiplexing the first OFDM modulation signal and the third modulation signal. A transmitter transmits the multiplexed signal. | 08-12-2010 |
20120328047 | TRANSMISSION DEVICE, RECEPTION DEVICE, AND RADIO COMMUNICATION METHOD - A transmitting apparatus includes an OFDM modulator that generates a first modulation symbol by modulating a first information signal using a first modulation scheme, a signal point of the first modulated information signal being at a first position in an in-phase quadrature-phase plane. A second modulation symbol by modulating a second information signal using the first modulation scheme, and by changing a second position at which a signal point of the modulated second information signal is arranged to a third position in the in-phase quadrature-phase plane, and an OFDM modulation signal including the first modulation symbol and the second modulation symbol, wherein the OFDM modulation signal comprises a plurality of subcarriers. | 12-27-2012 |
Patent application number | Description | Published |
20090298352 | ELECTRONIC APPARATUS AND CONNECTOR - According to one embodiment, an electronic apparatus includes a connector into which a plug of a USB cable is insertable. The connector includes a housing and a terminal portion provided in the housing. The housing includes an insertion opening part which exposes the terminal portion outside, a back part positioned at an end part opposite to the insertion opening part in the housing, and a side part provided between the insertion opening part and the back part and configured to oppose to the plug when the plug is inserted into the connector. The side part includes an inclined part which continues to the insertion opening part and is inclined such that a distance between the inclined part and the plug increases in a direction from the back part toward the insertion opening part to form a gap between the inclined part and the plug. | 12-03-2009 |
20100003849 | ELECTRONIC APPARATUS AND CONNECTOR - According to one embodiment, an electronic apparatus includes a connector into which a plug of a USB cable is insertable. The connector includes a housing and a terminal portion provided in the housing. The housing includes an insertion opening part which exposes the terminal portion outside, a back part positioned at an end part opposite to the insertion opening part in the housing, and a side part provided between the insertion opening part and the back part and configured to oppose to the plug when the plug is inserted into the connector. The side part includes an inclined part which continues to the insertion opening part and is inclined such that a distance between the inclined part and the plug increases in a direction from the back part toward the insertion opening part to form a gap between the inclined part and the plug. | 01-07-2010 |
20110312195 | ELECTRONIC APPARATUS AND CONNECTOR - According to one embodiment, a module comprises a connector into which a first plug and a second plug are insertable. The connector includes a housing and a terminal portion provided in the housing. The housing includes an insertion opening part which exposes the terminal portion outside, a back part positioned at an end part opposite to the insertion opening part in the housing, and a side part provided between the insertion opening part and the back part and configured to oppose to the plug when the plug is inserted into the connector. The side part includes an inclined part which continues to the insertion opening part and is inclined such that a distance between the inclined part and the plug increases in a direction from the back part toward the insertion opening part to form a gap between the inclined part and the plug. | 12-22-2011 |
20110312227 | ELECTRONIC APPARATUS AND CONNECTOR - According to one embodiment, a connector into which a first plug and a second plug are insertable. The connector includes a housing and a terminal portion provided in the housing. The housing includes an insertion opening part which exposes the terminal portion outside, a back part positioned at an end part opposite to the insertion opening part in the housing, and a side part provided between the insertion opening part and the back part and configured to oppose to the plug when the plug is inserted into the connector. The side part includes an inclined part which continues to the insertion opening part and is inclined such that a distance between the inclined part and the plug increases in a direction from the back part toward the insertion opening part to form a gap between the inclined part and the plug. | 12-22-2011 |
Patent application number | Description | Published |
20120215518 | STORAGE MEDIUM HAVING STORED THEREIN INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING SYSTEM - A normal mode is a processing mode in which processing based on a first architecture for an information processing method is executed, and a compatible mode is a processing mode in which processing based on a second architecture for another information processing method is executed. In the normal mode, first result data obtained by executing the processing based on the first architecture is inputted to an output section configured to output inputted data to a user. In the compatible mode, second result data obtained by executing the processing based on the second architecture is inputted to the output section, in a manner adapting the second result data to input of the output section. | 08-23-2012 |
20140066102 | SERVER DEVICE, COMMUNICATION SYSTEM, METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - A server device includes: a receiving unit configured to receive, from each of a plurality of information-processing devices, location information showing a respective location of each information-processing device; a setting unit configured to set a condition showing that one information-processing device is close to another information-processing device, based on a predetermined parameter; a determining unit configured to determine whether a first information-processing device and a second information-processing device from among the plurality of information-processing devices satisfy the condition based on the location information received by the receiving unit; and a transmitting unit configured to transmit information determined at the determining unit to the first information-processing device and the second information-processing device, in a case that the determining unit determines that the first information-processing device and the second information-processing device satisfy the condition. | 03-06-2014 |
20140258388 | SERVER ENABLED USER DATA EXCHANGE BETWEEN INFORMATION PROCESSING DEVICES - A server device includes: a receiving unit configured to receive, from each of a plurality of information-processing devices, location information showing a respective location of each information-processing device; a setting unit configured to set a condition showing that one information-processing device is close to another information-processing device, based on a predetermined parameter; a determining unit configured to determine whether a first information-processing device and a second information-processing device from among the plurality of information-processing devices satisfy the condition based on the location information received by the receiving unit; and a transmitting unit configured to transmit information determined at the determining unit to the first information-processing device and the second information-processing device, in a case that the determining unit determines that the first information-processing device and the second information-processing device satisfy the condition. | 09-11-2014 |