Abstract: There is disclosed a wireless communication apparatus using any of a plurality communication bands. A detection device detects a cyclic interference with a first communication band of the plurality of communication bands. An assignment device assigns the first communication band to an extension channel and assigns a second communication band of the plurality of communication bands to a control channel, when the cyclic interference has been detected by the detection device. Accordingly, a communication device performs wireless communication using the control channel and the extension channel.

Abstract: Radio communication system includes radio transmitter containing unit dividing transmission data into first-code blocks each having N-bit data, unit adding error detection codes to first-code blocks, unit assigning first-code blocks to second-code blocks each including M carriers each having L symbols, and unit transmitting second-code blocks, and radio receiver containing unit receiving second-code blocks, unit converting second-code blocks into first-code blocks, based on values of M and L, unit subjecting first-coded blocks to error correction decoding, unit detecting error of code block of first-code blocks subjected to error correction decoding, unit generating retransmission-request signal for requesting retransmission of code block including error, if error is detected, and unit transmitting retransmission-request signal, and radio transmitter further containing unit receiving retransmission-request signal from radio receiver, unit counting number of times of reception of retransmission-request signal,

Abstract: A modulator includes a first input configured to input a first bit string; a first modulating device configured to modulate the inputted first bit string at a first bit rate; a second input configured to input a second bit string; a second modulating device configured to modulate the inputted second bit string at a second bit rate which is lower than the first bit rate; and an output configured to output a modulated signal including the modulated first bit string and the modulated second bit string.

Abstract: Radio communication system includes terminal including unit detecting radar wave transmitted through second-frequency channel, first-and-second-frequency channels through which radar wave fails to be transmitted being simultaneously utilized or one of first-and-second-frequency channels being utilized, unit generating radar-detection information including information indicating detection time when detecting unit detects radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-detection information, and base station including unit receiving radar-detection information, unit generating radar-occurrence information based on received-radar-detection information, radar-occurrence information including information indicating occurrence time when radar wave occurs, information indicating period of occurrence of radar wave, and information indicating frequency channel through which radar wave is transmitted, and unit transmitting radar-occurrence in

Abstract: Audio information is read out of a recording medium which records musical pieces as audio information. The audio information read out is processed to detect BPM values and positions of beats in the musical piece. A musical piece is reproduced from the recording medium by reproducing audio information in accordance with the detected BPM values and positions of beats. The BPM value indicates the tempo of a musical piece, and the beat indicates a strength of a sound which repeatedly appears in each musical piece. When the audio information is reproduced in accordance with the detected BPM values and positions of beats, the musical piece is reproduced at the correct tempo and beats without giving an unnatural feeling to the listener.

Abstract: An information playback apparatus is provided, which can provide a sound which sounds natural by controlling an abrupt change in a tempo in the case of random access playback. When a cue point is registered, audio data which makes seamless playback possible is stored into a cue point memory, and further, the beat density of a playback sound being played when the cue point is registered is measured and stored. When the cue point is specified to start random access playback later, a ratio of the beat density (?×DBPM) of a playback sound being played when the cue point is specified and the beat density (DBPMreg) stored in advance is found. Then, the random access playback is started after the beat density of a playback sound to be played after random access playback is started is corrected to be equal to the beat density when a start of the random access playback is specified.

Abstract: An information playback apparatus which can perform random access playback, reverse playback, shuttle playback, etc. quickly and seamlessly. A signal processing unit stores audio data read out from a disc into a buffer memory, and performs information processing for audio playback based on the audio data in the buffer memory. Audio data of certain time durations respectively corresponding to a past and a future with respect to the audio data currently being subjected to audio playback is replenished and stored into the buffer memory. When a jog dial is manipulated, reverse playback, shuttle playback, etc. are performed quickly and seamlessly based on the audio data in the buffer memory.

Abstract: The reception quality of the radio signal is detected in a wakeup period. The detected reception quality is compared with the first threshold. If the detected reception quality is equal to or higher than the first threshold, the duration of a wakeup period as a next reception target is set to the first time. If the detected reception quality is less than the first threshold, the duration of the wakeup period as the next reception target is set to the second time longer than the first time.

Abstract: An information playback apparatus is provided, which provides a more convenient operation when a piece of music or the like is switched to another to be played continuously and to play a sound which sounds natural during the switching manipulation. When a loop-in button key is manipulated to be ON, the number of beats (beat density) BPMreal per unit time of music or the like being played is measured, and a time (60/BPMreal)×Kbpm in proportion to a ratio of the beat density BPMreal to a certain beat density Kbpm pre-set by the user or the like is computed. Then, audio data, such as music, corresponding to a range from a point at which the loop-in button key is manipulated to be ON to a point at which the computed time has passed, is stored into a loop data memory. Consequently, repetitive playback is performed based on audio data stored in the loop data memory at a tempo (the number of beats per unit time) adjusted to the certain beat density Kbpm until a loop-off button key is manipulated to be ON.

Abstract: An information playback apparatus is provided, which can provide a sound which sounds natural by controlling an abrupt change in a tempo in the case of random access playback. When a cue point is registered, audio data which makes seamless playback possible is stored into a cue point memory, and further, the beat density of a playback sound being played when the cue point is registered is measured and stored. When the cue point is specified to start random access playback later, a ratio of the beat density (&agr;×DBPM) of a playback sound being played when the cue point is specified and the beat density (DBPMreg) stored in advance is found. Then, the random access playback is started after the beat density of a playback sound to be played after random access playback is started is corrected to be equal to the beat density when a start of the random access playback is specified.

Abstract: An information playback apparatus which can perform random access playback, reverse playback, shuttle playback, etc. quickly and seamlessly. A signal processing unit stores audio data read out from a disc into a buffer memory, and performs information processing for audio playback based on the audio data in the buffer memory. Audio data of certain time durations respectively corresponding to a past and a future with respect to the audio data currently being subjected to audio playback is replenished and stored into the buffer memory. When a jog dial is manipulated, reverse playback, shuttle playback, etc. are performed quickly and seamlessly based on the audio data in the buffer memory.

Abstract: Audio information is read out of a recording medium which records musical pieces as audio information. The audio information read out is processed to detect BPM values and positions of beats in the musical piece. A musical piece is reproduced from the recording medium by reproducing audio information in accordance with the detected BPM values and positions of beats. The BPM value indicates the tempo of a musical piece, and the beat indicates a strength of a sound which repeatedly appears in each musical piece. When the audio information is reproduced in accordance with the detected BPM values and positions of beats, the musical piece is reproduced at the correct tempo and beats without giving an unnatural feeling to the listener.

Abstract: The present invention provides a transparent laminate comprising a laminate substrate obtained by bonding a Second substrate composed of a polycarbonate-based resin to a first surface of a first substrate composed of an acrylic resin via a first bonding layer composed of a resin having a glass transition temperature(Tg) of about 50° C. or less, and a surface layer composed of a polycarbonate-based resin bonded via a surface bonding layer composed of an acrylic resin to a second surface of the first substrate, which laminate is light and excellent in transparency and excellent in impact resistance when it repeatedly receives an impact.

Abstract: A large amount of user information is transmitted with good efficiency by means of a high-speed downlink by making transmission rates of an uplink circuit and a downlink asymmetrical. The radio communication system includes a plurality of base stations, a plurality of terminals, an uplink established between each of the base stations and each of the terminals for the purpose of radio transmission of prescribed information from a terminal to a base station, and a downlink circuit established between each of the terminals and each of the base station for the purpose of radio transmission of prescribed data from a base station to a terminal.

Abstract: In a radio communication system, communication for sending data from a transmitting station to a receiving station and communication for transmitting re-send data from the transmitting station to the receiving station according to the re-send request transmitted from the receiving station to the transmitting station are done on different occasions of communication. Hence, in the applications not requiring real time service, this re-send control method does not spend the power and radio resources wastefully, and by effectively utilizing the system resources and lowering the power consumption, the battery of the terminal may be reduced in size, so that the portability of the terminal may be enhanced.

Abstract: A diversity receiver system includes reception circuits connected to antennas for converting frequency of a received signal to a base band signal; a diversity branch comparison circuit for directing a base band signal to be used by comparing an intermediate frequency supplied through the reception circuit; a base band delay detection circuit for outputting a detection signal which is generated by a delay detection of the base band signal directed by the diversity branch comparison circuit; and a DPLL circuit for generating an internal clock by using the detection signal supplied from the base band delay detection circuit, thereby securing a stable reception and providing a diversity receiver system having a small circuit scale.

Abstract: A portable terminal includes a first store for storing a first physical address including a serial number of the terminal, a second store for storing a first logical address including a subscriber's telephone number, a third store for storing a second physical address of a hardware used for computer communication, a fourth store for storing a second logical address corresponding to the second physical address, an interface for radio LAN, and an interface for PHS system. When a call is originated, a first channel is connected by using the first physical address and the first logical address. The second physical address and the second logical address are transmitted to the network from the call originator's terminal through the first channel, thereby setting in a state enabling communication between computers, and necessary data is transmitted to the call originator's terminal through a second channel by communication between computers.

Abstract: An impact resistant transparent resin laminate having at least one methacrylate resin plate and at least one polycarbonate resin plate which are bonded with a bisphenol type epoxy resin base soft polymer, which laminate is excellent in impact resistance.

Abstract: A large amount of user information is transmitted with good efficiency by means of a high-speed downlink by making transmission rates of an uplink circuit and a downlink asymmetrical. The radio communication system includes a plurality of base stations, a plurality of terminals, an uplink established between each of the base stations and each of the terminals for the purpose of radio transmission of prescribed information from a terminal to a base station, and a downlink circuit established between each of the terminals and each of the base station for the purpose of radio transmission of prescribed data from a base station to a terminal.

Abstract: A large amount of user information is transmitted with good efficiency by means of a high-speed downlink by making transmission rates of an uplink circuit and a downlink asymmetrical. The radio communication system includes a plurality of base stations, a plurality of terminals, an uplink established between each of the base stations and each of the terminals for the purpose of radio transmission of prescribed information from a terminal to a base station, and a downlink circuit established between each of the terminals and each of the base station for the purpose of radio transmission of prescribed data from a base station to a terminal.