Abstract: A reproducing method includes: an obtaining step of obtaining a high quality image and a first low quality image that are still images showing an identical scene, and conversion determination information; a first determining step of determining whether or not the display device can display the high quality image; a first reproducing step of reproducing the high quality image when the display device can display the high quality image; a second determining step of determining whether or not to generate a second low quality image by using the conversion determination information when the display device cannot display the high quality image; a second reproducing step of reproducing the first low quality image when it is determined not to generate the second low quality image; and a third reproducing step of generating the second low quality image from the high quality image and reproducing the second low quality image when it is determined to generate the second low quality image.

Abstract: An adjusting device includes an acquisition unit that acquires a non-linear first video signal generated using a first opto-electronic transfer function (OETF), a converter that performs conversion processing of converting the first video signal acquired by the acquisition unit into a non-linear second video signal obtained (i) by converting the first video signal into a linear signal using an inverse characteristic of the first OETF, (ii) by performing adjusting processing including a gain change in which a relationship between an input value and an output value becomes linear on the linear signal, and (iii) by converting a post-adjustment linear signal obtained by performing the adjusting processing using a second OETF corresponding to a predetermined format, and an output unit that outputs the second video signal obtained by a conversion performed by the converter.

Abstract: An editing method includes: obtaining a high quality image and a first low quality image that are still images showing an identical scene, and edit management information that indicates whether or not to permit editing at least one image of the high quality image and the first low quality image; and editing the at least one image when the edit management information indicates to permit editing the at least one image, and when the edit management information indicates not to permit editing the at least one image, the at least one image is not edited.

Abstract: A reproducing method includes: an obtaining step of obtaining a high quality image and a first low quality image that are still images showing an identical scene, and conversion determination information; a first determining step of determining whether or not the display device can display the high quality image; a first reproducing step of reproducing the high quality image when the display device can display the high quality image; a second determining step of determining whether or not to generate a second low quality image by using the conversion determination information when the display device cannot display the high quality image; a second reproducing step of reproducing the first low quality image when it is determined not to generate the second low quality image; and a third reproducing step of generating the second low quality image from the high quality image and reproducing the second low quality image when it is determined to generate the second low quality image.

Abstract: A data processor according to the present invention plays back video and audio from a data stream including video data and audio data, each of which is provided with time information representing its presentation time. The processor includes: a stream acquiring section for acquiring a first data stream and a second data stream continuously; an inserting section for inserting boundary-setting dummy data between the data streams; an analyzing section, which detects the dummy data and associates identification information with the video and audio data of each data stream; a control section for controlling the respective output timings of video data and audio data by reference to the time information of the video data and the time information of the audio data that are associated with the same piece of identification information; and an output section.

Abstract: A video scan converter processes a video stream including a first coding unit, which has been obtained by encoding a pair of fields N1 and N2 that has come from a first frame of film video, and a second coding unit, which has been obtained by encoding a pair of a field N3 that has also come from the first frame and a field M1 that has come from a second frame, not the first frame. The video scan converter includes: a decoder, which receives the video stream, decodes the first and second coding units, and sequentially outputs the data of the respective fields N1, N2, N3 and M1; and a scan converter, which generates a frame based on associated two of those fields that have been supplied from the decoder. In outputting a frame associated with the field N3, the scan converter generates the frame based on the fields N1 and N2 without using the data of the field N3.

Abstract: A video scan converter processes a video stream including a first coding unit, which has been obtained by encoding a pair of fields N1 and N2 that has come from a first frame of film video, and a second coding unit, which has been obtained by encoding a pair of a field N3 that has also come from the first frame and a field M1 that has come from a second frame, not the first frame. The video scan converter includes: a decoder, which receives the video stream, decodes the first and second coding units, and sequentially outputs the data of the respective fields N1, N2, N3 and M1; and a scan converter, which generates a frame based on associated two of those fields that have been supplied from the decoder. In outputting a frame associated with the field N3, the scan converter generates the frame based on the fields N1 and N2 without using the data of the field N3.

Abstract: The image conversion apparatus converts non-stereoscopic image data into stereoscopic image data configured by left-eye image data and right-eye image data. The image conversion apparatus includes an input unit that inputs a non-stereoscopic image, and a conversion unit that generates and outputs the left-eye image data and the right-eye image data based on the non-stereoscopic image data input through the input unit.

Abstract: Color difference signals of demodulated video are vertically filtered to be converted into 4:2:2 signals before subjected to OSD synthesis, after which those signals are once again vertically filtered as a sort of scaling to obtain the output resolution. As filtering is carried out in two stages, the frequency characteristic deteriorates.

Abstract: There is provided a reproducing apparatus that includes a separating unit operable to separate a three-dimensional image signal containing left-eye image data and right-eye image data into left-eye image data and right-eye image data, a decoder operable to decode the left-eye image data to output a left-eye image signal, and decode the right-eye image data to output a right-eye image signal, a first image quality adjustment unit operable to adjust image quality of an image indicated by the left-eye image signal, and a second image quality adjustment unit operable to adjust image quality of an image indicated by the right-eye image signal. Adjustment of the image quality of the image indicated by the left-eye image signal, which is performed by the first image quality adjustment unit, is performed independently from adjustment of the image quality of the image indicated by the right-eye image signal, which is performed by the second image quality adjustment unit.

Abstract: Color difference signals of demodulated video are vertically filtered to be converted into 4:2:2 signals before subjected to OSD synthesis, after which those signals are once again vertically filtered as a sort of scaling to obtain the output resolution. As filtering is carried out in two stages, the frequency characteristic deteriorates.

Abstract: Even when an OSD video signal is superimposed on a video signal, deterioration in the frequency characteristic or in gradation of the video or OSD video signal superimposed on it is minimized. A graphic image is represented by a video signal that provides color information and degree of transparency information on a pixel basis. The video processor includes: a filtering section, which receives and converts a 4:2:0 format video signal representing the video into a 4:2:2 or 4:4:4 format video signal; a decision section, which determines, by reference to the transparency information, whether the graphic image be superimposed on the video; a synthesizing section, which superimposes a color difference signal representing the graphic image on that of the video signal converted by the filtering section; and a scaling section for performing scaling on the synthetic color difference signal.

Abstract: A data processor includes: a dummy packet processing section, which makes a plurality of dummy packets, each having a dummy identifier, and generates a playback stream including the dummy packets at predetermined intervals; a detecting section for detecting any of the dummy identifiers by scanning the identifiers of the respective packets of the playback stream and then outputting a first detection signal upon detecting a first code, which specifies a data location of a first portion of a given content, and a second detection signal upon detecting a second code, which specifies a data location of a second portion thereof, respectively; a switch, which receives the playback stream and which selectively passes the content data representing the first portion of the content in accordance with the first and second detection signals; and a decoding section for playing back the first portion of the content based on the output of the switch.

Abstract: Noise is prevented when decoding an audio stream not containing syncwords or CRC bits in the elementary stream. When decoding a current frame, the private header of the next frame is analyzed and the current frame is muted if the private header of the next frame is not valid. When there is a data discontinuity caused by editing, decoding resumes from the start address of the next frame determined.

Abstract: Noise is prevented when decoding an audio stream not containing syncwords or CRC bits in the elementary stream. When decoding a current frame, the private header of the next frame is analyzed and the current frame is muted if the private header of the next frame is not valid. When there is a data discontinuity caused by editing, decoding resumes from the start address of the next frame determined.

Abstract: A video scan converter processes a video stream including a first coding unit, which has been obtained by encoding a pair of fields N1 and N2 that has come from a first frame of film video, and a second coding unit, which has been obtained by encoding a pair of a field N3 that has also come from the first frame and a field M1 that has come from a second frame, not the first frame. The video scan converter includes: a decoder, which receives the video stream, decodes the first and second coding units, and sequentially outputs the data of the respective fields N1, N2, N3 and M1; and a scan converter, which generates a frame based on associated two of those fields that have been supplied from the decoder. In outputting a frame associated with the field N3, the scan converter generates the frame based on the fields N1 and N2 without using the data of the field N3.

Abstract: A data processor includes: a stream extracting section for acquiring a first data stream and then a second data stream; a packet inserting section, which makes a dummy packet, having a dummy identifier that is different from any of the identifiers of packets in a stream, and which inserts the dummy packet between the last packet of the first data stream and the first packet of the second data stream; a splitting section for splitting content data into respective types according to the packet identifiers and inserting error data, which is different from the content data, upon the detection of the dummy identifier; and a decoder, which plays back the content data of the data stream on the basis of a playback unit and, on detecting the error data, discards incomplete content data at the end of the first data stream and a portion of the content data of the second data stream up to the first header thereof such that those content data are not played back.

Abstract: The vertical sync signal generator includes: a vertical sync signal separation circuit for separating a vertical sync signal of an input luminance signal and outputting the separated signal as a first vertical sync signal; an automatic frequency control circuit for generating a second vertical sync signal having a repeat frequency corresponding with an average repeat frequency of the first vertical sync signal and outputting the generated signal; a vertical sync signal phase detection circuit for detecting whether or not the first vertical sync signal has two different periods repeated alternately and outputting the detection result as a decision signal; and a selector for receiving the first and second vertical sync signals, selecting the first vertical sync signal when the decision signal indicates that the first vertical sync signal has two different periods repeated alternately and otherwise selecting the second vertical sync signal and outputting the selected signal.

Abstract: A data processor according to the present invention plays back video and audio from a data stream including video data and audio data, each of which is provided with time information representing its presentation time. The processor includes: a stream acquiring section for acquiring a first data stream and a second data stream continuously; an inserting section for inserting boundary-setting dummy data between the data streams; an analyzing section, which detects the dummy data and associates identification information with the video and audio data of each data stream; a control section for controlling the respective output timings of video data and audio data by reference to the time information of the video data and the time information of the audio data that are associated with the same piece of identification information; and an output section.

Abstract: A data processor includes: a dummy packet processing section, which makes a plurality of dummy packets, each having a dummy identifier, and generates a playback stream including the dummy packets at predetermined intervals; a detecting section for detecting any of the dummy identifiers by scanning the identifiers of the respective packets of the playback stream and then outputting a first detection signal upon detecting a first code, which specifies a data location of a first portion of a given content, and a second detection signal upon detecting a second code, which specifies a data location of a second portion thereof, respectively; a switch, which receives the playback stream and which selectively passes the content data representing the first portion of the content in accordance with the first and second detection signals; and a decoding section for playing back the first portion of the content based on the output of the switch.