Patent application number | Description | Published |
20090268800 | DEMODULATION CIRCUIT, DEMODULATION METHOD, PROGRAM, AND RECEPTION APPARATUS - A demodulation circuit including: a first error calculation section configured to calculate a first error in accordance with a blind method; a second error calculation section configured to calculate a second error in accordance with a DD method; an update section configured to update filter coefficients for first and second filters based on the first or second error, the first filter filtering an input signal to generate a first signal, the second filter filtering a signal representing a hard decision value for a post-equalization signal to generate a second signal; a control section configured to, in the case where the update section is updating the filter coefficients based on the second error, controlling the filter coefficients to be updated based on the first error, when the degree of the second error has exceeded a first threshold; and a generation section configured to generate the post-equalization signal based on the first and second signals. | 10-29-2009 |
20090268855 | SIGNAL RECEIVING APPARATUS, SIGNAL RECEIVING METHOD AND SIGNAL RECEIVING PROGRAM - A signal receiving apparatus for receiving signals is provided. The signal receiving apparatus includes a correlation-value computation section configured to sequentially compute a correlation value representing a correlation between the received signal and a series of known symbols while sliding the series of known symbols for every symbol included in the received signal, a maximum-value detection section configured to detect a largest correlation value among the correlation values computed by the correlation-value computation section for one frame of the received signal, and a correlation-value storage section configured to store each of the correlation values at one of a predetermined number of storage locations, before and after the largest correlation value is detected by the maximum-value detection section. | 10-29-2009 |
20090276670 | RECEPTION APPARATUS, RECEPTION METHOD, AND PROGRAM - A reception apparatus that receives a signal, including, a correction section, an error detection section, a filtering section, and a setting section is provided. | 11-05-2009 |
20090310713 | RECEIVING APPARATUS, RECEIVING METHOD, AND PROGRAM - The present invention provides a receiving apparatus including: a capturing section configured to correct an error of a receive signal and capture the receive signal; a filtering section configured to remove a low frequency component of a signal indicative of an integrated value of an error of the receive signal; and a capture detecting section configured to monitor a signal outputted from the filtering section and, if the signal is within a predetermined range for a predetermined time, detect that the capturing section has captured the receive signal. | 12-17-2009 |
20120099634 | RECEIVING DEVICE AND METHOD, DEMODULATING DEVICE AND METHOD, AND PROGRAM - The present disclosure provides a receiving device including, a receiver configured to receive a signal that is transmitted via a propagation path and is modulated by a predetermined system prescribed by a predetermined standard, a demodulator configured to demodulate a received signal, an estimator configured to estimate a signal-to-noise ratio relating to the propagation path, obtained from a data signal included in the demodulated received signal, and a corrector configured to correct an estimated signal-to-noise ratio in accordance with a transmission parameter obtained from the received signal. | 04-26-2012 |
20120099635 | RECEPTION APPARATUS, RECEPTION METHOD, AND PROGRAM - Disclosed herein is a reception apparatus including a calculation section and a storage section. The calculation section calculates correlation values between a data sequence included in a known signal and a received signal at a given point in time. The storage section has at least an area sufficient for storing the correlation values calculated for one frame using the received signal which is one frame long and to which the known signal is added. | 04-26-2012 |
20120099676 | RECEPTION APPARATUS AND METHOD, DEMODULATION APPARATUS AND METHOD, AND PROGRAM - A reception apparatus includes: a reception section configured to receive a signal modulated by one of a single-carrier scheme and a multi-carrier scheme that are specified by a predetermined standard; a single-carrier demodulation section configured to execute single-carrier demodulation based on the single-carrier scheme onto the signal; a multi-carrier demodulation section configured to execute multi-carrier demodulation based on the multi-carrier scheme onto the signal; and a demodulation control section configured to control such that one of the single-carrier demodulation and the multi-carrier demodulation is tried on the received signal in accordance with a preset predetermined rule. | 04-26-2012 |
20120102082 | RECEPTION APPARATUS, RECEPTION METHOD AND PROGRAM - Disclosed herein is a reception apparatus, including a first equalization section, a second equalization section, and an arithmetic operation section. The first equalization section is adapted to carry out equalization of a signal which represents data transmitted by a transmission method which uses a single carrier. The second equalization section is adapted to carry out equalization of a signal which represents data transmitted by a transmission method which uses multi carriers. The arithmetic operation section is adapted to carry out arithmetic operation for determining information to be used for the equalization by the first equalization section and arithmetic operation for determining information to be used for the equalization by the second equalization section. | 04-26-2012 |
20120106660 | RECEPTION APPARATUS, RECEPTION METHOD, DEMODULATION APPARATUS, DEMODULATION METHOD, AND PROGRAM - Disclosed herein is a reception apparatus including: a reception section configured to receive a signal modulated by a predetermined system defined by a predetermined standard; a decoding section configured to decode transmission parameters included in the received signal; an acquisition section configured to acquire from among sequentially decoded transmission parameters the parameters used in a demodulation process performed on the received signal; and a control section configured such that if the acquired transmission parameters used in the demodulation process on the received signal are different from the sequentially decoded transmission parameters, then the control section controls the demodulation process on the received signal based on newly decoded transmission parameters. | 05-03-2012 |
20120250797 | SIGNAL RECEIVING APPARATUS, SIGNAL RECEIVING METHOD AND SIGNAL RECEIVING PROGRAM - Disclosed herein is a signal receiving apparatus including: a data-loss detection section configured to detect a data loss from a received signal; and a timing adjustment section configured to adjust a processing timing by the quantity of the data loss on the basis of the detection result of the data loss. | 10-04-2012 |
20120300881 | RECEIVING APPARATUS - A receiving apparatus includes a correlation operation unit and a determination unit. The correlation operation unit is configured to perform a correlation operation with a known signal on a received signal including the known signal in a predetermined interval. The determination unit is configured to determine whether or not a correlation peak interval detected by the correlation operation unit deviates from the predetermined interval. | 11-29-2012 |
20140029661 | RECEPTION DEVICE AND RECEPTION METHOD - The present technique relates to a reception device and a reception method which can improve equalization performance. An equalization processing unit has a time domain equalization unit which equalizes a received signal in a time domain and a frequency domain equalization unit which is provided in parallel to the time domain equalization unit and which equalizes the received signal in a frequency domain, and performs control of switching between the time domain equalization unit and the frequency domain equalization unit. The present technique can be applied to, for example, equalize a signal of data transmitted by way of single carrier transmission or data transmitted by way of multicarrier transmission. | 01-30-2014 |
Patent application number | Description | Published |
20080292297 | VIBRATION DETECTING DEVICE, IMAGING APPARATUS, AND VIBRATION DETECTING METHOD - A vibration detecting device includes: a vibration amount detecting unit including at least a vibration amount sensor which is a portion for detecting a vibration amount, and outputting a vibration detection signal which is a signal indicating the detected vibration amount, and a high-pass filter configured to remove DC components to be superimposed on the vibration detection signal; a status detecting unit configured to detect a particular status which causes a result for providing particular change to the vibration amount detected by said vibration amount sensor; and an input control unit configured to prevent said vibration amount detection signal from being input to said high-pass filter in response to said particular status being detected by said status detecting unit. | 11-27-2008 |
20090034950 | IMAGE-BLUR COMPENSATING DEVICE AND IMAGE PICKUP APPARATUS - Disclosed is an image-blur compensating device including an optical axis changing unit changing an optical axis, an actuator driving the optical axis changing unit, a displacement detector detecting a position of the optical axis changed by the optical axis changing unit, an angular velocity detector detecting an angular velocity applied from outside, and a target displacement calculator calculating a driving amount when the actuator has driven the optical axis changing unit based on the angular velocity detected by the angular velocity detector and the position detected by the displacement detector. The target displacement calculator then obtains, as a result of compensating an amount of influence on the position of the optical axis, a driving amount when driving the actuator based on the calculated driving amount. The image-blur compensating device further includes a driver driving the actuator based on the driving amount calculated by the target displacement calculator. | 02-05-2009 |
20090128636 | Image pickup apparatus - An image pickup apparatus includes an image pickup optical system having an optical axis and configured to form a subject image, an image pickup element configured to pick up the subject image and output the picked-up subject image as an image, an optical axis controller configured to displace an optical axis position relative to the image pickup element every time image capturing is performed, an image addition processor configured to correct positional displacement between a plurality of images output from the image pickup element and add the resulting images together, and an operation unit. | 05-21-2009 |