| Patent application number | Description | Published |
|---|
| 20090103670 | PSEUDO-ECHO CANCELLATION PROCESSING APPARATUS, PSEUDO-ECHO CANCELLATION METHOD AND DIGITAL-BROADCAST RECEIVING APPARATUS - Disclosed herein is a pseudo-echo cancellation processing apparatus including: a correlator for computing a complex mutual-correlation value, that is, the value of a mutual correlation between the real part of a complex baseband signal of a received input-signal sequence and a reference-signal sequence included in the input-signal sequence as well as the value of a mutual correlation between the imaginary part of the complex baseband signal and the reference-signal sequence; and a processing section configured to carry out processes of: pre-storing complex vectors each representing pseudo-echo components; detecting a complex mutual-correlation value having a peak of powers of the complex mutual-correlation values; delaying the detected complex mutual-correlation value by a delay time corresponding to successive symbols; carrying out a complex multiplication operation; and adding a complex mutual-correlation value to an original complex mutual-correlation value. | 04-23-2009 |
| 20090104886 | SIGNAL PROCESSING DEVICE, CONTROL METHOD OF SIGNAL PROCESSING DEVICE, DIGITAL BROADCAST RECEIVING DEVICE, AND CONTROL METHOD OF DIGITAL BROADCAST RECEIVING DEVICE - A signal processing device includes: a first converting unit for frequency-converting the input signal into a signal in a first frequency band; a filter for cutting off the frequency component outside a predetermined pass band; a second converting unit for frequency-converting the signal from the first frequency band to a second frequency band; third converting unit for converting the signal in the second frequency band into a signal in a third frequency band coinciding with the pass band; an oscillating unit for oscillating a signal used for frequency conversion of the third converting unit; and a detecting unit for detecting a frequency error between oscillation frequency of the signal oscillated by the oscillating unit and frequency of a signal used for frequency conversion from the second frequency band to the third frequency band coinciding with the pass band, and outputting an error signal indicating the frequency error. | 04-23-2009 |
| 20090163164 | RECEPTION DEVICE, RECEPTION METHOD AND PROGRAM - A reception device includes: an AGC circuit adapted to control the amplitude of a receive signal; a correction circuit adapted to correct the flutter component in the output signal of the AGC circuit; a synchronization circuit adapted to establish synchronization with the signal whose flutter component has been corrected by the correction circuit; and an equalization circuit adapted to perform an equalization process based on the signal with which synchronization has been established by the synchronization circuit and output the equalized signal, wherein the correction circuit includes a detection circuit, an IIR filter, a gain circuit, a flutter component correction circuit, and a gain control circuit. | 06-25-2009 |
| 20090190695 | DECODING DEVICE AND METHOD, RECEIVING DEVICE AND METHOD, AND PROGRAM - Disclosed herein is a decoding device that decodes demodulated data obtained by demodulating a quadrature modulated signal arising from digital modulation of a carrier and detects synchronization, the decoding device including, a decoder configured to decode first demodulated data that is the demodulated data obtained by demodulating the quadrature modulated signal and is composed of in-phase axis data and quadrature axis data, and decode second demodulated data obtained by interchanging the in-phase axis data and the quadrature axis data of the first demodulated data, and a synchronization detector configured to detect a boundary between predetermined information symbol sequences from first decoded data obtained by decoding the first demodulated data and detect the boundary from second decoded data obtained by decoding the second demodulated data, the synchronization detector selecting and outputting one of the first decoded data and the second decoded data based on a result of the detection of the boundary. | 07-30-2009 |
| 20100245651 | ELECTRONIC APPARATUS, DISPLAY CONTROL METHOD, AND PROGRAM - An electronic apparatus includes an operation receiving unit configured to receive a selection operation for selecting, in a case where index images for allowing selection of content to be reproduced are displayed in list form on a display unit, an index image from among the index images displayed in list form, an image processing unit configured to sequentially scale up an image related to content corresponding to the selected index image from a size of the selected index image to a certain size, and a control unit configured to cause the display unit to display the image that is being sequentially scaled up, with an arrangement position of the selected index image serving as a reference position, and cause the display unit to display the content corresponding to the selected index image when a size of the image that is being sequentially scaled up reaches the certain size. | 09-30-2010 |
| 20110102421 | INFORMATION PROCESSING DEVICE, IMAGE DISPLAY METHOD, AND COMPUTER PROGRAM - An information processing device includes an image generator that generates a first image representing a content and one or more second images from the content including the first image, and a display controller that displays the one or more first images on a first plane in a depth direction as seen from an image display screen, aligns one or more second images on an axis three-dimensionally perpendicular to the first plane on which the first images are displayed, and displays the images as a first screen. | 05-05-2011 |
