Abstract: A broadcast channel change detection apparatus receives a broadcast wave including channel change information that includes a change date and time of a physical channel of the broadcast wave and physical channels before and after the change, and searches and detects channel change plan information including the change date and time regarding the physical channel to be changed in a television receiver apparatus and the physical channels before and after the change, based on the channel change information. Next, the broadcast channel change detection apparatus receives the broadcast wave on the physical channel after the change in the channel change plan information, and judges whether or not the broadcast wave is actually receivable based on the detected channel change plan information, when the change date and time in the channel change plan information is older than or equal to a current date and time.

Abstract: A broadcast channel change detection apparatus receives a broadcast wave including channel change information that includes a change date and time of a physical channel of the broadcast wave and physical channels before and after the change, and searches and detects channel change plan information including the change date and time regarding the physical channel to be changed in a television receiver apparatus and the physical channels before and after the change, based on the channel change information. Next, the broadcast channel change detection apparatus receives the broadcast wave on the physical channel after the change in the channel change plan information, and judges whether or not the broadcast wave is actually receivable based on the detected channel change plan information, when the change date and time in the channel change plan information is older than or equal to a current date and time.

Abstract: A method of transmitting TV signals comprises transmitting three-dimensional information representing three-dimensional shapes of a stereoscopic object from a plurality of view points, and image information of the stereoscopic object and two-dimensional information indicating a correspondence between points in a surface of the stereoscopic object represented by the three-dimensional information and the image information of the stereoscopic object, as TV signals.

Abstract: A video signal apparatus allows multiple pictures to be displayed. A plurality of input video signals are processed to produce a plurality of signals corresponding to a respective plurality of pictures. The plurality of pictures corresponding to the plurality of signals are displayed. At least one of the plurality of pictures which have been displayed is selected. First and second modifications are made to the selected picture. The first modification to the selected picture indicates that the selected picture is being provided with the second modification.

Abstract: A video display apparatus comprising a memory of fields for plural images, a device for judging whether even-number field or odd-number field, and a frame synchronizing device for reading and selecting fields, in which, if the input has one type of field only, these plural images are displayed simultaneously while keeping correct interlacing.

Abstract: A video signal of one field is applied to a high frequency component measuring device which measures the high frequency component strength Q of the image of the video signal. The video signal of one field is also applied to a field memory. A look-up table memory carries a plurality of quantization tables each containing parameters. The parameters are aligned in a matrix format in the quantization table. The strength Q is used for selecting one quantization table which is appropriate for reducing the size of coded video signal. A JPEG compression device compresses the video signal from the field memory by DCT operation to produce compressed signal, which is an alignment of a plurality of coefficients aligned in a matrix format. The coefficients are divided by corresponding parameters in the selected quantization table to reduce the size of the compressed signal.

Abstract: The present invention provides a useful video editing system capable of reading shot directly from an original source and preparing a master tape to which vide effects such as wipes are applied and a method thereof.

Abstract: A non-linear video editing apparatus having a randomly accessible image data storage unit, a FIFO, a video effects unit, and desired-shots storage unit. The image data from the image data storage unit and data transfer to the FIFO are controlled so that images are not interrupted during an editing operation. The apparatus dispenses with a great number of switches and manage with a FIFO having a small capacity.

Abstract: An image processing apparatus is for exactly reproducing color originals. The apparatus includes a circuit for removing a ground color contained in an input color signal by forcibly changing an input signal having a level larger than a predetermined level to white. The apparatus may include a gamma correction circuit having therein a plurality of selectable gamma collection data. The apparatus may also include a circuit for producing a natural monochromatic signal from signals corresponding to three primary color signals R, G and B by performing an operation expressed as [(signal corresponding to R).times.2.sup.I +(signal corresponding to G).times.2.sup.I +(signal corresponding to B).times.2.sup.K ]/2.sup.L wherein I, J, K and L are integers and 2.sup.I +2.sup.J +2.sup.K =2.sup.L.