Abstract: To display a more natural display screen without sense of strangeness, when displaying a video signal having a greater number of horizontal scanning lines than the number of horizontal display lines of the display means. The video signal is displayed by thinning at a rate of one out of every plurality of video signal groups. Accordingly, missing of only upper and lower portions of the video signals of the display screen is prevented, and when the video signal is compressed and displayed, a natural display screen without sense of strangeness is presented.

Abstract: When performing gradation display by giving digital value as display data to each pixel arranged in a matrix on a display panel and emitting the pixels at a brightness corresponding to the magnitude of the digital value, plural display frame periods are set as one cycle, and digital value .alpha. is given as display data in certain display frames selectively determined in the cycle, and digital value .beta.=.alpha..+-.M (M being a positive Integer) is given as display data in, other display frames in the same cycle. Accordingly, a halftone gradation between the gradation corresponding to the digital value .alpha. and the gradation corresponding to the digital value .beta. may be displayed in plural degrees depending on the rate of the number of display frames given the digital value .alpha. and the number of display frames given the digital value .beta..

Abstract: A multi-picture tuning scheme suitable for a television receiver of the type which displays at least two kinds of television pictures simultaneously on a same screen tube employed therein includes a series of channel selection switches, a control switch, a storage device responsive to the series of channel selection switches to store two series of channel selection information according to the series of channel selection switches, a selection circuit responsive to the control switch to select the storage of the channel selection information into the storage device so that one of the two series of channel selection information is allocated in the storage device, and a tuning device responsive to the storage device for receiving a channel in accordance with the channel selection information.

Abstract: A weighing method and apparatus is provided wherein an excessive amount or number of objects to be weighed over the predetermined or target weight is distributed among a plurality of weighing machines and weighed with combinations of actually measured values being obtained from the plurality of weighing machines and calculated, and the combination of weights which is equal to or most approximates that of the target or predetermined weight is selected.