Abstract: A retrieval keyword analyzing system extracts an access sequence indicating a continuous access by a same requester based on a Web access log which relates first identification data indicating an access requester to second identification data indicating contents to be accessed. The Web access log relates second identification data indicating a retrieval system to a retrieval keyword input to the retrieval system by the requester. The analyzing system extracts the retrieval keyword from the Web access log, calculates a qualitative evaluation value of the access sequence and creates relation data between the retrieval keyword and the qualitative evaluation value.

Abstract: There is provided a replay apparatus including a skip function, which is initiated if a skip button is pressed, for stopping a replay operation to restart at the next content after skipping during the replay operation of one of a plurality of stored contents. The replay apparatus includes measuring means for measuring an elapsed time from a replay start time of a content and a time when the content is skipped, evaluating means for giving an evaluation value reflecting a preference of a user to the replayed content that is skipping based on the elapsed time, and creating means for creating preference information by registering the given evaluation value in association with the replayed content.

Abstract: The present invention relates to an image processing apparatus, an image processing method, and a program capable of improving the visual quality of an image after grayscale conversion. A grayscale modulator 200, which is a ?? modulator that converts the grayscale of an image, includes: an adder 250 that adds the pixel value of the image and the output of a feedback arithmetic unit 240; a quantizing unit 210 that quantizes the output of the adder 250 and outputs a quantized value including a quantization error as the result of the ?? modulation; a subtractor 230 that calculates the difference between the output of the adder 250 and the quantized value of the output of the adder 250, thereby calculating the quantization error; and the feedback arithmetic unit 240 that filters the quantization error and outputs the filtering result to the adder 250.

Abstract: A calculator system for performing duplication of contents does not necessarily perform screening, i.e., electronic watermark detection, rather, contents copy control information can be obtained otherwise. For example, in the event of copying a CD regarding which it is known beforehand that there is no electronic watermark inserted in the contents, the electronic watermark detection processing itself can be skipped as long as the CD can be confirmed to be such, thereby reducing the amount of time necessary for copying. Electronic watermark inspecting processing with heavy computation loads is performed vicariously for judging whether or not duplication of contents is permissible.

Abstract: A picture signal processing system includes a playback apparatus and a display apparatus connected via first and second communication units. The playback apparatus receives a video signal made up of source data generated by moving giant image data in a constant direction at a constant speed, wherein the giant image data has a number of pixels far greater than the number of pixels in a display region. The playback apparatus reads source data speed information stored in the video signal header, and transmits the video signal and the speed information to the display apparatus. The display apparatus references a table to determine how to process the video signal on the basis of the speed information, processes the video signal, and then displays the processed video signal.

Abstract: A gradation conversion device that converts a gradation of an image, includes: dither means for dithering the image by adding random noise to pixel values forming the image; and one-dimensional ?? modulation means for performing one-dimensional ?? modulation on the dithered image.

Abstract: There is provided a video display device including a content control unit for displaying a video content on a display screen; a user specifying unit for specifying a user viewing a video content displayed on the display screen; and an image quality adjustment unit for adjusting the image quality of the display screen according to the user specified by the user specifying unit.

Abstract: A signal processing method of a solid-state image sensor includes comparing a high-sensitivity-pixel output signal and a first threshold value to determine whether or not the high-sensitivity-pixel output signal reaches a level of a saturated-high-sensitivity-pixel output signal. If the high-sensitivity-pixel output signal does not reach the level of the saturated-high-sensitivity-pixel output signal, a difference value between the high-sensitivity-pixel output signal and an amplified low-sensitivity-pixel output signal is calculated. The amplified low-sensitivity-pixel output signal is obtained by multiplying a low-sensitivity-pixel output signal by a sensitivity ratio, which is obtained by dividing a sensitivity value of a high sensitivity pixel by a sensitivity value of a low sensitivity pixel. A first or second image signal is output according to whether an absolute value of the difference value is smaller than a second threshold value or not.

Abstract: An image processing apparatus includes: a filter-coefficient storing unit that stores filter coefficients respectively associated with spatial frequencies, which are the numbers of strips displayed per unit angle with respect to an angle of field of a display apparatus; a viewing-condition determining unit that determines, as viewing conditions, a viewing distance between a viewer and the display apparatus and pixel density of the display apparatus; a filter-coefficient setting unit that sets a filter coefficient selected on the basis of a spatial frequency calculated from the viewing conditions among the stored filter coefficients; and a gradation modulating unit including a quantizing unit that quantizes a pixel value in a predetermined coordinate position in an image signal and outputs the pixel value as a quantized pixel value in the predetermined coordinate position, the gradation modulating unit gradation-modulating the image signal by multiply-accumulating a set filter coefficient with respect to quant

Abstract: A gradation converting device that converts gradation of an image includes: a dither unit that applies dither to the image by adding random noise to a pixel value forming the image; and a one-dimensional ?? modulation unit that applies one-dimensional ?? modulation to the image applied with the dither.

Abstract: A playback apparatus for playing back video information, audio information, and subtitle information from a recording medium, the recording medium having recorded thereon video information, audio information associated with the video information, and subtitle information corresponding to utterance information included in the audio information, the utterance information and the subtitle information being given in a plurality of languages, includes a mode switching unit that switches between a normal playback mode and a language-learning playback mode, and a control unit that, when the language-learning playback mode is set, plays back video information and audio information associated with the video information and reads, from the recording medium, subtitle information given in the same language as a language of utterance information included in the audio information to be played back to perform playback in which subtitles based on the subtitle information are superimposed and displayed on video based on the v

Abstract: A focus control apparatus conducts a focus control with respect to an imaging apparatus configured to vary the focal point using a deformable mirror. An imaging unit first obtains image data via imaging elements and imaging optics provided in the imaging apparatus. A controller controls the driving of the deformable mirror such that, during a first image reading period wherein the reading of an image signal is periodically executed by means of the imaging elements, a focus drive state is achieved whereby an in-focus point that has been found in advance is set as the current focal point. During a second image reading period different from the first image reading period, the deformable mirror is controlled so as to achieve a focus drive state for in-focus point search.

Abstract: An image processing apparatus that displays, on a display region having a first number of pixels, an image represented by gigantic image data that is recorded in a recording medium and has a second number of pixels that is significantly greater than the first number of pixels, including: a reproducing unit configured to read image data from the recording medium; an output unit configured to output the image data, which is read by the reproducing unit from the recording medium, in synchronization with a vertical synchronization signal; and a control unit configured to control the reproducing unit and the output unit. The control unit performs control to extract and read a region corresponding to the display region from the gigantic image data recorded in the recording medium.

Abstract: An image processing apparatus and method for obtaining an image signal to be processed. A classification information obtaining section obtains classification information indicating the image signal as one of a plurality of image signal types. The plurality of image signal types include a first type comprising a plurality of frames extracted from a large still image, the frames being extracted by moving an extracting area in units of an integer pixel per frame over the large still image, extracting the frames corresponding to the extraction area, and outputting an image signal corresponding to the frames. An image signal processing section then performs processing on the image signal based on the classification information.

Abstract: A data management apparatus for managing data stored in a predetermined storage area includes a reader configured to communicate with a plurality of objects each having a memory storing an address indicating a storage area and to read the address from the memory of an object with which communication is to be performed by a user among the plurality of objects; a data obtaining unit configured to obtain data to be stored in the storage area; and a storage controller configured to cause the data obtained by the data obtaining means to be stored in the storage area indicated by the address read by the reader.

Abstract: The present invention relates to signal receiving apparatus and method for efficiently transmitting a digital satellite broadcast signal received, and recording medium. A DSS broadcast signal from an antenna is subjected to station selection in a front end circuit, the scramble thereof is released in a descramble circuit, and further it is judged whether the broadcast signal concerned is an SD broadcast signal or HD broadcast signal. The SD signal is decoded in an MPEG decode circuit, converted to an NTSC signal in an NTSC encode circuit, and then output from a video cable. The HD signal is rearranged to a structure conformed with the ATSC system in a multiplexing editing circuit, encrypted in an encryption circuit and then output from an IEEE1394 interface.

Abstract: A content, restored in an information processing apparatus, for replaying a content, such as a personal computer, is fed back to a drive device. The drive device detects an electronic watermark from the transferred restored content, and controls content outputting from the drive device. In this arrangement, an electronic watermark is reliably detected and content replay control is performed based on the detected electronic watermark in any type of coding including MPEG 2, MPEG-1, MPEG-4 regardless of type of coding or even if the content is encrypted.

Abstract: Digital television broadcast signals are received and AV signals are reproduced in a common apparatus. A digital television signal is received and is separated into a compressed first video signal, a compressed first audio signal, and first copyright protection information. An AV signal is reproduced from a recording medium and is separated into a second compressed video signal, a second compressed audio signal, and second copyright protection information. The first signals and information are selected when a received operation command is a command to select the digital television broadcast channel, and the second signals and information are selected when the received operation command is a command to reproduce data. The selected signals and information are decoded to generate a decoded video signal, a decoded audio signal, and a copyright protection signal, and the copyright protection signal is added to the decoded signals to limit copying.

Abstract: An information processing apparatus is connectable to a bus that is connected to a further apparatus. A detecting circuit detects whether the bus is connected to the information processing apparatus. When the detecting circuit detects that the bus is connected to the information processing apparatus, a control circuit controls a power supply circuit such that the power supply circuit provides power to a further circuit. When the detecting circuit detects that the bus is not connected to the information processing apparatus, the control circuit controls the power supply circuit such that the power supply circuit does not provide the power to the further circuit.

Abstract: A calculator system for performing duplication of contents does not necessarily perform screening, i.e., electronic watermark detection, rather, contents copy control information can be obtained otherwise. For example, in the event of copying a CD regarding which it is known beforehand that there is no electronic watermark inserted in the contents, the electronic watermark detection processing itself can be skipped as long as the CD can be confirmed to be such, thereby reducing the amount of time necessary for copying. Electronic watermark inspecting processing with heavy computation loads is performed vicariously for judging whether or not duplication of contents is permissible.