Abstract: An wireless terminal includes a demodulating unit which comprises an FV (fading vector) estimating unit for receiving a CPICH spread/demodulated signal to output an FV signal with a reduced noise ratio; a phase synchronization unit for multiplying a PDSCH spread/demodulated signal with a complex conjugate of the FV signal to correct the phase offset of the PDSCH I and Q signals to send the resulting PDSCH I and Q signals to a multi-level QAM amplitude synchronization detection unit and to an amplitude demodulating unit; a first-quadrant transformation unit for collecting the second to fourth quadrant signals of the phase-synchronized PDSCH I and Q signals; and a threshold value detecting unit for calculating a multi-level QAM threshold value from the first quadrant signals and the FV signals to send the threshold signal to an amplitude demodulating unit. The amplitude demodulating unit effects amplitude demodulation to output multi-level QAM demodulated signals.

Abstract: The present invention is to realize supercooled freezing as a method of enhancing the quality of frozen food with a simple arrangement by a method other than quick freezing. Further, the present invention is to obtain a refrigerator and a frozen food preservation method capable of realizing high quality freezing by a simple arrangement. The refrigerator, which stores food making use of the cold air generated by a cooler 3, includes a supercooling case 81 for keeping the stored food in a supercooled state, in which the food is not frozen even at a temperature equal to or less than the freezing point of the food, for at least a predetermined period of time. The supercooling case 81 is composed of, for example, a lower case of two-stage type upper and lower cases disposed in a switching chamber 200 capable of being switched to a plurality of temperature zones.

Abstract: A radio receiver includes a channel estimation unit, phase difference vector generation unit, correction coefficient setting unit, and noise estimation unit. The channel estimation unit obtains a channel estimated value from a received signal at a predetermined period by using a known pilot signal. The phase difference vector generation unit obtains a phase difference vector between the preceding channel estimated value and the current channel estimated value. The correction coefficient setting unit sets a correction coefficient corresponding to the phase difference vector. The noise estimation unit obtains a corrected noise estimated value by correcting a noise estimated value on the basis of the received signal and the correction coefficient. A noise estimated value correction method is also disclosed.

Abstract: A mobile communication system capable of improving the reception characteristic using a small circuit size and low power consumption is provided. The channel vector estimating section 181 estimates channel vectors in a method such as a method in which the section 181 multiplies, according to the multipath timings sent from the multipath timing detecting section, the input signal from the base-station receiving section by a complex conjugate of a known pilot signal to average the input signal (to average the input signal by de-spreading the pilot signal in the case of CDMA). The noise estimating section 182 estimates noise power using received signals and generates a Channel matrix by arranging the estimated channel vectors according to the multipath timings. The weight calculating section 184 calculates a weight matrix using the noise estimation value and the Channel matrix and sets the obtained filter weight vectors to the equalizing filter 185.

Abstract: A portable radio terminal for realizing automatic frequency control (AFC) for automatically controlling the oscillation frequency of an oscillator includes a unit for intermittently performing AFC operation, and a unit for shortening an AFC operation stop period when the frequency shift of the oscillation frequency is large. An AFC control method is also disclosed.

Abstract: Pluralities of state update frames are defined. The base station is configured to transmit a state update data to instruct the mobile station to be set to either an active state or a suspended state, in the state update frames. The base station is configured to transmit a packet only to the mobile station that has been set to the active state by the state update data. The base station notifies the mobile station of a packet transmission by transmitting a control data including a data necessary to receive the packet, earlier than the packet transmission by a predetermined time. The mobile station is configured to receive the control data and the packet when being set to the active state, and is configured to not receive the control data and the packet when being set to the suspended state.

Abstract: A corrected channel estimating apparatus is disclosed, which is capable of removing side-lobe components mutually leaking into transmission paths from channel estimates to increase the accuracy. A channel estimation unit calculates channel estimates for a plurality of transmission paths due to a signal that arrives through multipath. A channel estimate correction unit removes side-lobe components mutually leaking into the transmission paths from the channel estimates calculated by the channel estimation unit to correct the channel estimates. In this way, the corrected channel estimating apparatus estimates transmission paths of a multipath.

Abstract: A transmitter for transmitting a synchronization signal for establishing synchronization, and a receiver for establishing the synchronization by detecting the synchronization signal are included, and the receiver tries to detect the synchronization signal sequentially at a frequency in which the probability that an effective frequency exists is higher to a frequency in which the existence probability is lower among a plurality of discrete frequency bands.

Abstract: A MIMO wireless communication system capable of relaxing a reduction in a transmission rate on a cell end far from a base station and ensuring a high transmission rate for a mobile station, irrespectively of a distance from the base station is provided. In a state 1 in which a mobile station 21 is away from a first base station 11, a distance between the first base station and the mobile station is short, a propagation line state is good, and high speed transmission is possible. Therefore, the mobile station checks a propagation line quality and instructs only the first base station to transmit data to the mobile station. When the mobile station moves to a state 2, a transmission line state between the mobile station and the first base station is worse but the mobile station is communicable with a second base station along with a reduction in a possible transmission data rate.

Abstract: An equalizer is provided which is capable of making a filter factor to be set in the equalizer having an equalizing filter converge rapidly and a method is provided for setting an initial value for the rapid convergence of the filter factor. In the equalizer having a filter factor computing device to compute a filter factor for an equalizing filter, and a differential detecting circuit to generate a differential signal between a signal output from the equalizing filter and a common pilot diffusing code, an initial value for the filter factor computing device is generated and set by a multipath timing detecting circuit, a reverse diffusing section, and a channel estimating device being operated based on a received signal.

Abstract: There is provided a mobile communication system capable of reducing the power consumption in the packet wait state and promptly transmitting a packet when data transmission is requested. At a predetermined synchronization establishment interval start time (T1), a base station starts transmission of DPCH (DL) which is a downlink individual channel. A mobile station receives the DPCH (DL) and starts synchronization establishment operation. If the synchronization of the DPCH (DL) is not established by the synchronization establishment interval end time (T2), the synchronization establishment operation is continued.

Abstract: A mobile communication system includes a base station and a mobile station. The base station includes a transmitting/receiving section that transmits/receives a packet to/from the mobile station. The base station also includes a base station state updating section that notifies the mobile station of transmission/reception state update information that indicates update of a packet receivable state in the mobile station. The mobile station includes a mobile station transmitting/receiving section that transmits/receives the packet to/from the base station. The mobile station also includes a mobile station state updating section that sets, on the basis of the transmission/reception state update information, one of an active state in which the control information for packet transmission can be received and a suspend state in which the control information for packet transmission cannot be received.

Abstract: It is intended to provide lectins and a lectin library comprising these lectins which are useful in recognizing differences in carbohydrates on cell surface (for example, sugar chains and cell surface glycoproteins) reflecting extremely subtle differences among cells, etc. and thus distinguishing, identifying or fractionating various cells.

Abstract: A wireless mobile station comprising: a plurality of finger units for performing spread demodulation of a downstream signal transmitted from a base station through a transmission channel; and a rake unit for combining the spread-demodulated downstream signals which are outputted from each of the finger units, wherein both of the finger units and the rake unit share and perform arithmetic operation for compensating channel estimation of the spread-demodulated downstream signal.

Abstract: A portable radio terminal for realizing automatic frequency control (AFC) for automatically controlling the oscillation frequency of an oscillator includes a unit for intermittently performing AFC operation, and a unit for shortening an AFC operation stop period when the frequency shift of the oscillation frequency is large. An AFC control method is also disclosed.

Abstract: A CDMA radio device is provided which is capable of reducing a hardware scale and providing more accurate path selection with low power consumptions. A down-sampling part outputs data of which sampling frequency is made lower than A/D sampling frequency. A correlator part performs correlation calculation of the data using specific spread codes designated in cell information to create a delay profile. A first path selection part selects a path in the delay profile and transfers selection information to an up-sampling part. The up-sampling part supplements delay profile data at sampling time that has been lost in the down-sampling part. A second path selection part transfers some location information of ultimately determined paths to a base station spread demodulation unit or a mobile station spread demodulation unit as a path timing signal.

Abstract: It is expected that lectins of a needed number of types appropriately corresponding the variation of sugar chains, if available, are highly useful as tools for analyzing various sugar chains. From a lectin library containing plural types of lectins or an arbitrary mass of lectins containing plural types of lectins, lectins needed for analyzing sugar chains are selected to thereby construct a lectin sub-library. Using the lectin sub-library thus constructed, cells having sugar chains are identified. Moreover, an indication method whereby cells can be conveniently identified is provided.

Abstract: A radio receiver includes a channel estimation unit, phase difference vector generation unit, correction coefficient setting unit, and noise estimation unit. The channel estimation unit obtains a channel estimated value from a received signal at a predetermined period by using a known pilot signal. The phase difference vector generation unit obtains a phase difference vector between the preceding channel estimated value and the current channel estimated value. The correction coefficient setting unit sets a correction coefficient corresponding to the phase difference vector. The noise estimation unit obtains a corrected noise estimated value by correcting a noise estimated value on the basis of the received signal and the correction coefficient. A noise estimated value correction method is also disclosed.

Abstract: There is provided a mobile radio communication system which is capable of reducing a group ID in length with respect to the number of mobile stations and realizing efficiency of air resources. Suspend control of mobile stations is performed by notifying not only control information but also transmission/reception state update information for instructing a state [Active/Suspend] in a status update frame set in advance from a base station to the mobile stations using an HS-SCCH. The base station performs the suspend control by sending, in state update information at timing of a state update frame number of a user ID allocated in advance, a group ID of a user ID allocated to mobile stations desired to be made Active in advance.

Abstract: A mobile communication system according to the present invention is provided with a base station and a mobile station that communicates with the base station. In a communication protocol between the base station and the mobile station, a plurality of state update frames are defined in a time domain. The base station is configured to transmit a state update data to instruct that the mobile station is set to either an active state or a suspended state, in each of the plurality of the state update frames. At the same time, the base station is configured to transmit a packet only to the mobile station that has been set to the active state by the state update data. The base station in advance notifies the mobile station of packet transmission by transmitting a control data including a data necessary to receive the packet, earlier than the packet transmission by a predetermined time difference. The mobile station is set to either the active state or the suspended state in response to the state update data.