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Применить Всего найдено 11. Отображено 11.
05-12-1990 дата публикации

SPECIAL EFFECT APPARATUS FOR VIDEO SIGNAL

Номер: GB0002201316B
Принадлежит: NEC CORP, * NEC CORPORATION

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24-08-1988 дата публикации

Special effect apparatus for video signal

Номер: GB0002201316A
Принадлежит:

A special effect apparatus which is capable of producing a special effect image in which a speed of image transformation is changed as a function of location between a plurality of predetermined knots of the image. The special effect apparatus includes a read address generating circuit for generating a read-out address to read a stored digital video signal out of a video memory. The read address generating circuit includes a coefficient calculator for calculating coefficients defining a function of a tracing curve, which linearly connects the predetermined knots, a transition distance calculator for calculating a transition distance between the predetermined knots during a transition time, and an interpolated parameter calculator responsive to the calculated coefficients and the calculated transition distance, for calculating an interpolated parameter, based on parameters defined at the predetermined knots, such that the speed of image transformation between the knots varies in accordance ...

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13-04-1990 дата публикации

DIGITAL TYPE TELEVISION SIGNAL SEMICONDUCTOR RECORDING DEVICE

Номер: JP0002101881A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To use a field while evading the field containing a disabled field part by providing a memory between a field address generator and an address generator, and rewriting the content of the memory. CONSTITUTION: An analog video signal is converted by an A/D converter 1 and its output video signal is stored in a picture storage device 2 for ≥ one picture. Then a clock 10 is used to generate an address in a unit of field by a field address generator 8 and a memory 6 is read by its output address. The value read from the memory 6 is used as a field address to generate an address of each picture element in one field and it is supplied to the storage device 2 and the readout coding video signal is decoded into an analog signal. In such a case, a content of the memory 6 is updated based on the field address from the generator 8. COPYRIGHT: (C)1990,JPO&Japio ...

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16-06-1989 дата публикации

FADER VALUE RECORDING AND REPRODUCING DEVICE

Номер: JP0001154677A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To reproduce a fader operation with a small memory capacity by sampling a fader value for a constant time and storing it. CONSTITUTION: A sampling circuit 1 successively stores the digital value of a fader 100 to fader holding devices 12 and 13 by the clock from a sampling clock generator 11. A comparator 14 compares the output of fader holding devices 12 and 14 and '1' or '0' is stored into a control data memory 24 and the difference between both is stored into a difference data memory 22. A memory data reading circuit 3 reads the data stored into a memory circuit 2 and outputs them as a fader value. The fader value is obtained from the difference data memory 22 through a difference data holding device 33, an adder 35 and an output fader value holding device 34. COPYRIGHT: (C)1989,JPO&Japio ...

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30-05-1991 дата публикации

DIGITAL TELEVISION VIDEO SIGNAL SPECIAL EFFECT DEVICE

Номер: JP0003127562A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To synthesize 2 pictures without need for a circuit for picture synthesis by adding a picture element data generator and combining a readout address switching device. CONSTITUTION: The device is provided with an optional picture element data generator 4, an input picture switching device 5, a constant readout address generator 8 generating the same readout address as a write address generated when a write address generator 3 generates a control signal and a readout address switching device 9 switching an address generated by the constant readout address generator 8 and an address generated by a readout address generator 7. Thus, the picture element data generator 4 is added and the readout address switching device 9 is combined to the device to generate the effect synthesizing two pictures without need for a circuit for picture synthesize. COPYRIGHT: (C)1991,JPO&Japio ...

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18-07-1988 дата публикации

SPECIAL EFFECT GENERATOR FOR DIGITAL TELEVISION

Номер: JP0063174478A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To alter the transition speed of a picture even in a curved orbit by calculating the curved orbit of the transition of the picture obtained by passing through plural given positions in given order and by varying the speed in respective sections among points on the orbit. CONSTITUTION: An elapsed time (t) and a transition time T are inputted in a moving distance calculation circuit 1 so as to calculate the moving distance (x). At the same time, parameters of the picture y-1, y0, y1 and y2 are inputted so as to obtain the coefficient of the equation of an orbit curve in an orbit curve coefficient calculation circuit 2 which calculates a smooth curve. Inputting outputs from two circuits 1 and 2, an interpolation data calculation circuit 3 generates interpolating data (y). By separately calculating the coefficient of the equation of the orbit curve and the transition speed, thus, the transition speed can be varied in the curved orbit. COPYRIGHT: (C)1988,JPO&Japio ...

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16-05-1990 дата публикации

DIGITAL TV SIGNAL RECORDER

Номер: JP0002128579A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To set picture reading-out order independently from picture writing order by providing a reading-out field address generator and writing field address generator independently from each other. CONSTITUTION: At the time or recording a line, a field address generated by a writing field address generator 5 is given to an address generator 6 as a writing address together with a writing control signal. At the time of reproducing a picture, a field address generated by a reading-out field address generator 4 is given to the address generator 6 as a reading-out address together with a control signal. Since the writing field address generator 5 and reading-out field address generator 6 are independently provided in such way, reading-out operations can be performed independently from the picture writing order. COPYRIGHT: (C)1990,JPO&Japio ...

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06-01-1992 дата публикации

DEVICE FOR GIVING SPECIAL EFFECT TO PICTURE

Номер: JP0004000876A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To obtain a picture with a effectively given special effect by changing the level of picture element data on the basis of the distance from a specific straight line calculated by means of a distance calculating means. CONSTITUTION: A readout address generator 6 calculates the X- and Y- coordinate values of picture element data to be read out from the X- and Y- coordinate of picture data and outputs calculated results to a picture memory 4. When a clock signal is inputted to a distance calculator 7, X- and Y- coordinate values are respectively outputted and the distance (d) from a straight line expressed by (ax+by+c=0) to a point expressed by (X, Y) is calculated. The distance (d) is converted into a value which meets f(d) in a function generating memory 28. The value converted by using the function is inputted to a pixel data synthesizer 8 as color phase information and the converted value is synthesized with the luminance and chroma levels of picture data read out from the picture ...

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17-11-1992 дата публикации

SPECIAL EFFECT GENERATOR FOR DIGITAL VIDEO SIGNAL

Номер: JP0004328968A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To realize the special effect that a bright part in a picture is glittered by increasing further the brightness of a picture element having a luminance component giving a specific brightness or over. CONSTITUTION: When the brightness of a luminance component read from a Y component storage device 16 is larger than a reference brightness of a reference brightness generator 15, a changeover device 21 selects an output of a multiplier 18 and gives an output with a control signal based on the result of comparison of a comparator 20. The brightness is further increased with respect to a picture element having a luminance component whose brightness in one picture is a specific brightness (reference brightness) or over by storing again the output of the multiplier 18 into the Y component storage device 16. COPYRIGHT: (C)1992,JPO&Japio ...

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19-07-1990 дата публикации

DIGITAL TELEVISION SIGNAL RECORDER

Номер: JP0002185181A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To attain simultaneous readout and write of a picture independently by providing an address generator generating an address of each picture element in one field for the readout and write independently. CONSTITUTION: In the recording of a picture, a write field address (a) generated by an address generator 7 is given to a write address generator 5 as a write address and a write control signal (c) is given to a picture storage device 2. In the reproduction of a picture, a readout field address input section 8 reads a readout field address (e) inputted from an input terminal 9 and latches it as a readout address, gives a readout control signal (d) to a picture storage device 2 and also to an address generator 8. In this case, the generated write and readout fields addresses are independent respectively. Thus, while a picture is written, an optional picture written at that point of time is read simultaneously. COPYRIGHT: (C)1990,JPO&Japio ...

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13-05-1992 дата публикации

PICTURE SPECIAL EFFECT DEVICE

Номер: JP0004138781A
Автор: KOSAKA ETSUKO
Принадлежит:

PURPOSE: To enable split processing in an arbitrary straight line or curve by providing a split position generation means outputting a split position as the function of a line number and arbitrarily setting the split position for each line with the use of the output of this means. CONSTITUTION: A split amount generator 9 generates the amount splitting a picture to be supplied to a reading address converter 7. Similarly, a split position generator 10 generates the split position for each line to be supplied to the reading address converter 7. In the converter 7, based on the split amount generated by the split amount generator 9 and the split position generated by a split position generator 10, a reading address generator 8 converts the generated reading address to be supplied to a picture storage device 5. An arbitrary function (f) is generated to this split position generator 10. The split of the picture can be performed with the arbitrary curve by providing a split position calculator ...

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