Abstract: A color television Y/U/V luminance-chrominance multiplex signal with signals which may or may not be compressed in time comprises for a television line the associated luminance information Y and half the chrominance information U or V. As a result the circuit should supply the chrominance information directly (U, V) and repeatedly (U', V') during a subsequent television line. To avoid the use of an accurate, expensive delay device having a line period delay, the circuit includes an input shift register (A) of the series-in, parallel-out type, which is coupled through an on-off switch circuit (B1, B2) to parallel inputs of two shift registers (C1, C2) of the parallel-in, series-out type. During a line blanking period (THB) writing is effected from the input shift register in the output shift registers and during two subsequent line scan periods (THS1, THS2) reading is effected consecutively therefrom. Reading may be effected in opposite phase if a repetition is to be effected after exactly one line period.

Abstract: A television system with enhanced definition in the field scanning direction is presented. In the information transmitter a video signal source is coupled directly and via line delay device with a subtraction circuit followed by a modulator with a subcarrier. An adding circuit is coupled with the output of the modulator and the source, possibly via the delay device. The resultant difference information is transmitted frequency-interleaved with the video information under control of a movement detector, to the information receiver. The receiver contains a filter circuit for separating the information. The modulated subcarrier goes via a demodulator to a superposition circuit to which further the video information is also supplied. The output of the superposition circuit is connected via a line delay device to one input of a switch-over circuit. The video information is supplied to a second input of the switch-over circuit.

Abstract: Color television transmission and data storage system, respectively, with time-division multiplex encoding. A signal source is coupled via an encoding circuit for time-division multiplex encoding and signal compression to a transmission and storage channel, respectively to which a data receiver having a complementary decoding circuit is connectable. Luminance information associated with a number of p line periods is transmitted substantially non-compressed. A portion of the chrominance information associated therewith is transmitted in considerably compressed form in a number of q further line periods. In this situation there is an average chrominance time compression factor which is substantially equal to or less than q/p. On display, p lines are displayed with substantially the full bandwidth for the luminance and a limited chrominance bandwidth which is inherent to the time compression. The channel is then used optimally to obtain a high picture quality on display.

Abstract: In a television transmission system, an encoding circuit in a data generator transmits (or stores) identification information relating to variable numbers of television lines or variable portions of television lines in which luminance and chrominance information occur, compressed where appropriate. The data receiver includes a simple, properly adaptable decoding circuit which comprises presettable counters for counting portions of television lines and for counting television lines, outputs of these counters being coupled to address inputs of a programmable memory which is coupled to a multiplexer which is switchable by the identification information and is followed by a logic circuit for generating control signals for a chrominance memory having the same write and read rates and for luminance and chrominance memories having said write rates and several read rates, under the control of a clock pulse source which is switchable via the logic circuit and the identification information.

Abstract: A picture flicker correction is desired with video disc players involving display of a stop-motion or still television picture and with television displays using field and line frequency doubling, in accordance with the so-called ABAB method. With a movement detector (51) movement or the absence of movement is detected. Two adding circuits (19, 22) are connected in parallel to delay devices (9, 9+12) having time delays substantially equal to a field period. By means of two switch-over devices (32, 37) switched by the movement detector (51), the delay devices (9, 9+12) or the adding circuits (19, 22) can be coupled with a switch-over device (45) which is switched once per field period. A further delay device (42) having a time delay substantially equal to a field period provides for information transfer during second field periods of frame periods comprising two field periods.

Abstract: The television circuit is suitable for use with a television picture signal originating from a tele-cine converter (1) which operates at a cine film display rate of 24 frames per second and a 60 Hz field frequency. The picture signal has cycles of alternately two and three field periods with the same picture information which, on display, results in flicker phenomena. To reduce flicker on display of the picture signal on a display screen, the picture signal is applied directly and by a delay device (5) producing a time delay of at least two or more whole field periods to a signal combining circuit (6) which is in the form of a matrix circuit and is followed by a change-over circuit (7). The matrix circuit (6) produces signal combinations in the output picture signal which on display result in flicker reduction.

Abstract: A television circuit arrangement for determining in a video signal (VS), frame periods comprising two field periods when a picture signal repeated in cycles of two successive field periods and with a possible change of picture content therebetween is present. Signal sources, such as, for example, cine-film television converters and "field skip" signal storage- and display devices, supply such a signal. It may be required for signal processing operations improving the picture quality during display, to use the cycles as frame periods. For this purpose, the circuit arrangement is provided with a switching circuit (S1-S6), a first (C1,S1,S4) and a second signal integration circuit (C2,S2,S5) which can be reset and are alternately operative every other field period, and a succeeding signal comparison circuit (AMP,S6) for supplying a voltage (VV) determining the frame period.

Abstract: A high definition color television transmission system in which wide band luminance information (Y, FIG. 1) is divided to produce a first luminance information portion (below 3.8 MHz) and a second luminance information portion (between 3.8 and 8.8 MHz). The first luminance information portion (Y1, FIG. 2) is transmitted by way of a first transmission path together with a color subcarrier (f.sub.sc) modulated by color information. The bandwidth of the color information is such that the modulation components lie outside the bandwidth of the first luminance information portion. The second and higher frequency luminance information portion is frequency shifted to lie within 0 and 5 MHz (Y2, FIG. 3) and is transmitted by way of a second transmission path. The two transmissions may also carry sound signals (f.sub.S1, FIG. 2; f.sub.S2, FIG. 3).

Abstract: A compatible television system for high-definition and for standardized low-definition television. In a transmitter (1) in the system, a high-definition video signal (VS1) is generated which is split into a contour signal (HVC2) which on display shows details in the horizontal and vertical directions, and a low-definition video signal (VS6). The low-definition video signal (VS6) is converted into a low-definition video signal (VS7) in conformity with the standard. The contour signal (HVC2) is also converted, but is transmitted periodically over several picture periods (HVC3). Both these converted signals are transmitted or stored, respectively, in two separate signal channels (3,4), each suitable for standard low-definition television. In a receiver (2) the standard video signal (VS7) can be utilized directly for low-definition display by a standard display device (8).

Abstract: A television pick-up arrangement comprising a solid-state picture pick-up device rows of picture pick-up elements of which are connectable to parallel inputs of two output shift registers. When the shift registers are read simultaneously they supply at their series outputs picture signal which are associated with each time two pairs of rows of picture pick-up elements. According to the invention, the two picture signals are applied on the one hand separately to a vertical aperture correction circuit having only one delay device with a time delay of one line period and on the other hand combined to a horizontal aperture correction circuit, the corrected signals being combined behind said correction circuits. Advantageous use can then be made of a device in which pick-up information is obtained by both holes and electrons which are caused by photons.

Abstract: A television pick-up arrangement comprising a solid-state picture pick-up device rows of picture pick-up elements of which are connectable to parallel inputs of two output shift registers. At a simultaneous read-out of the shift registers the registers supply at the series outputs picture signals associated with each pair of adjacent rows of picture pick-up elements. In the device the picture pick-up elements in one row are shifted in the row direction to the intermediate position relative to the elements in the other row. A color strip filter is provided having color filter strips transverse of the row direction which have a width equal to half the size in the row direction of a picture pick-up element. After the picture signal obtained from the registers are combined with the same polarity they are applied directly and via delay devices to inputs of a matrix circuit outputs of which are coupled to a change-over circuit from which color signals are obtained.

Abstract: An imaging panel comprising a buffer register inputs of which are connectable to the outputs of one of the rows or elements or connectable one after the other to outputs of several rows of the elements and whose outputs are coupled to the panel output. The buffer register is connected to a control circuit for shifting in each first field period of the interlaced picture each recorded information of an element row directly and fully, and for shifting in each second field period of the interlaced picture half of each recorded information of an element row, the other half being retained in the buffer register for confining it to half of the information to be shifted of the next row of elements.