Patent application number | Description | Published |
20080219328 | Receiver Apparatus, Receiving Method, Program, and Recording Medium - A receiver apparatus includes a plurality of signal receiving means; a plurality of channel signal outputting means for sampling signals received by the plurality of signal receiving means at sampling rates switched within a predetermined range or between multiple values and outputting channel signals; control means for controlling the sampling rates in the plurality of channel signal outputting means; response estimating means for estimating responses on the basis of the channel signals output from the plurality of channel signal outputting means; evaluating means for evaluating reception characteristics on the basis of the responses estimated by the response estimating means; and determining means for determining the sampling rates in the plurality of channel signal outputting means on the basis of the reception characteristics at the multiple sampling rates evaluated by the evaluating means. | 09-11-2008 |
20080240316 | Receiver, Receiving Method, Filter Circuit, and Control Method - A receiver supporting a plurality of radio communication systems having different specifications includes a setting unit, a clock generation circuit, a voltage-current conversion amplifier, a switch, integrators, an AD conversion circuit, and a feedback circuit. The setting unit sets a value suitable for a carrier frequency used in one selected radio communication system. The clock generation circuit generates a first clock having a first frequency and a second clock having a second frequency. The conversion amplifier converts an input voltage signal into a current signal. The switch switches between connection and disconnection modes in accordance with the first clock to output the current signal. Each integrator operates in accordance with the second clock and includes two or more switched capacitor circuits and an operational amplifier. The AD conversion circuit converts a signal supplied from the preceding integrator into digital form. The feedback circuit operates in accordance with the second clock. | 10-02-2008 |
20080256157 | Information Processing Device and Information Processing Method - An information processing device for processing reception signals converted into digital signals, includes: a first conversion unit for executing sampling rate conversion of each of the digital signals to be computed with each tap coefficient of a K'th-order FIR filter; a filter computing unit for executing computation processing of the K'th order FIR filter on K digital signals each of which have been subjected to sampling rate conversion by the first conversion unit; and a control unit for controlling sampling rate conversion of the digital signals by the first conversion unit, and the computation processing of the K'th order FIR filter by the filter computing unit. | 10-16-2008 |
20100073036 | HIGH-SPEED LOW-VOLTAGE DIFFERENTIAL SIGNALING SYSTEM - A system and a method for communicating data at a rate exceeding about a gigabit per second is described. The system may include circuitry and a current-sourcing module. The circuitry may include an output couplable to a load. The circuitry may output from the output a low voltage differential signal having a first current that drives the load from a first voltage at a first time to a second voltage at a second time. The current-sourcing module may apply a second current to the output at a third time, which occurs | 03-25-2010 |
20120020388 | Reception apparatus, reception method, program, and reception system - Disclosed herein is a reception apparatus including: a reception section configured to receive a signal at a frequency being changed; and a control section configured such that before changing the frequency to receive the signal, the control section stores control information about the reception section receiving the signal at the current frequency as last control information and that upon receiving again the signal at the frequency in effect before the change, the control section sets the last control information to the reception section as an initial value. | 01-26-2012 |
20140018021 | SIGNAL PROCESSING APPARATUS AND METHOD, RECEIVING APPARATUS AND METHOD, AND, TRANSMITTING APPARATUS AND METHOD - There is provided a signal processing apparatus including an oscillating unit having a division ratio of an integer that performs oscillation at a predetermined oscillation frequency, a frequency transforming unit that transforms a frequency of a signal of a processing target using a signal of the oscillation frequency obtained by the oscillation of the oscillating unit, and a correcting unit that corrects an error of the frequency of the signal of the processing target transformed by the frequency transforming unit based on an error of the oscillation frequency. | 01-16-2014 |
20140062749 | RECEPTION DEVICE AND RECEPTION METHOD - A reception device and corresponding method for maintaining a high dynamic range of an AD converter circuit and preventing excessive input to the AD converter circuit is disclosed. For example, a reception device includes a variable gain amplifier circuit that amplifies an input analog signal with a gain controlled by a predetermined control signal, an analog-to-digital converter circuit an overload detector circuit with the same frequency characteristic as the analog-to-digital converter circuit. The overload detector circuit outputs a signal according to a comparison between a level of a signal input to the analog-to-digital converter circuit and a predetermined threshold. The signal that lowers the gain of the variable gain amplifier circuit more greatly is selected out of the signal from the overload detector circuit and another signal, and the gain of the variable gain amplifier circuit is controlled on the basis of the selected signal. | 03-06-2014 |
20150162924 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM - To enable processing of a signal at an appropriate level. | 06-11-2015 |
20150163084 | RECEIVING DEVICE, RECEIVING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM - A receiving device according to an embodiment of the present disclosure receives a signal in which a data symbol and invalidation data are arranged. The receiving device includes an amplifying unit that amplifies the input signal and a gain adjusting unit that adjusts gain of the amplifying unit in a section of the invalidation data. The present disclosure can be applied to a receiving device that receives a radio signal of an OFDM system. | 06-11-2015 |