Abstract: In a system for reading out an information signal stored in a memory and recording it on a recording medium, renewal of the address of the memory is performed in synchronism with the recording operation, thereby making it possible to record the information signal on the recording medium continuously despite intermittent performance of recording. The address of the memory is returned by a predetermined amount in synchronism with renewal of the address of the memory or the recording operation. Thereby it is also possible to assure good continuity of the recorded information signals. Further, the above-described processing is made easier by making the address of the memory controllable in units of track on the recording medium.

Abstract: There is provided an image processing apparatus having an input unit for inputting a video signal, a detection unit for detecting the aspect ratio of the video signal input by the input unit, an image output unit for outputting an image having an aspect ratio corresponding to the aspect ratio detected by the detection unit, and a synthesizing unit for synthesizing the output from the image output unit with the video signal.

Abstract: A video signal reproducing apparatus for reproducing a video signal from a recording medium includes a rotary head arranged to periodically trace the recording medium and reproduce the recorded video signal, a memory arranged to receive the video signal reproduced by the rotary head, memory control circuitry for controlling writing into and reading from the memory, a rotation controller for controlling rotation of the rotary head; and mode setting circuitry for setting the apparatus into one of a plurality of modes including first and second still picture reproduction modes. In both modes, stored signals are repetitively read from the memory with reading address resetting occurring in the course thereof. In the first mode, which involves short term reproduction, the rotary head is caused to rotate and the resetting is dependent of detection of phase detection of the rotary head.

Abstract: A video signal processing apparatus including an input unit for inputting a video signal, a detecting unit for detecting an aspect ratio of the video signal inputted to the input unit, a holding unit for holding aspect information representing the aspect ratio detected by the detecting unit, an abnormal state detecting unit for detecting an abnormal state of the video signal inputted to the input unit, and an output unit for selectively outputting aspect information outputted from the aspect ratio detecting unit and the aspect information held by the holding unit, in accordance with an output of the abnormal state detecting unit.

Abstract: An image singal generating apparatus of the invention is an apparatus for generating an image signal. Quantized data is formed by quantizing the input image signal. The formed quantized data is sequentially distributed and supplied to a plurality of holding means each of which can hold the quantized data of one picture image. The quantized data held in each of the plurality of holding means is selectively sequentially generated. The quantized image signal is formed on the basis of the generated quantized data. Thus, the superfine quantized image signal can be generated.

Abstract: A color signal processing device for processing a carrier chrominance signal is arranged to produce a first sampling signal by sampling the carrier chrominance signal according to a sampling clock signal synchronized with a reference phase of the carrier chrominance signal and a second sampling signal which is of a sampling phase opposite to that of the first sampling signal and to form baseband signals conforming to a color signal by using the first and second sampling signals. This arrangement enables the device to process the color signal without causing any signal deterioration that tends to result from DC fluctuations of the carrier chrominance signal.

Abstract: A video signal processing device displaying both image and process information includes multiplexing circuitry for multiplexing a second video signal with a first video signal. Control circuitry is provided for controlling a multiplexing ratio of the first and second video signals in the multiplexing circuitry. A display is provided for simultaneously displaying at least a part of a video image which corresponds to the first video signal, and also for displaying a state of the multiplexing operation being performed by the multiplexing circuitry under the control of the control circuitry. Preferably, only a peripheral portion of the image is faded in the view finder. Alternatively, a bar graph on the side of the image in the view finder indicates the degree of fading the image is subjected to.

Abstract: An apparatus for processing an interlaced video signal having (2n+1) horizontal scanning lines (n: an integer) for one frame, which consists of two fields, is provided with a memory capable of storing at least an (n+1) horizontal scanning line portion of the video signal. The apparatus is arranged to reset the reading address of the memory alternately at an interval of n horizontal scanning periods and at an interval of (n+1) horizontal scanning periods and to reset the writing address of the memory in response to the front edge of a vertical synchronizing signal included in the input video signal.

Abstract: A video system is constructed of an auxiliary unit and a primary unit. The auxiliary unit includes a memory for storing a plurality of image data corresponding to an area occupying a portion of one picture, a plurality of location data indicative of the respective locations of the plurality of image data in the one picture and a plurality of color data indicative of respective colors relative to the plurality of image data. The primary unit includes an inputting circuit for inputting a first color video signal, a forming circuit for forming a second color video signal according to the plurality of image data, the plurality of location data and the plurality of color data which are supplied from the auxiliary unit and a combining circuit for combining the first video signal with the second video signal. The video system is capable of producing a variety of comined images with a relatively small memory capacity.

Abstract: A video signal processing device is arranged to obtain a signal representing a difference between an input video signal and a signal read out from a memory to which either the input video signal or an input video signal is supplied, to supply the difference signal to a multiplier which uses a variable coefficient, and to add the output of the multiplier to the input video signal.

Abstract: A special effect device comprising a first signal source, a second signal source, subtracting circuit, coefficient multiplying circuit, adding circuit, switch circuit and control circuit. The subtracting circuit is arranged to produce a difference signal between the signals of the first signal source and the second signal source. The coefficient multiplying circuit multiplies the difference from the subtracting circuit by a predetermined coefficient and the adding circuit adds the signals output from the first and second signal sources to the signal output from the multiplying circuit. The switch circuit selectively outputs the output of the first signal source or an output of the adding circuit. The control circuit is arranged to stop the supply of power to at least the subtracting circuit when the switch circuit is selectively outputting the output of the first signal source.

Abstract: A video signal reproducing apparatus forms a still picture signal by storing a reproduced video signal in a memory and then by repeatedly reading out the signal stored in the memory. The video signal reproducing apparatus forms a reference signal which is synchronized with the still picture signal read out from the memory, and controls the relative movement of a reproducing head and a recording medium on the basis of the reference signal.

Abstract: An apparatus for processing a video signal reproduced by a reproducing head from a recording medium, on which the video signal is recorded in many parallel tracks and reproduced with the head tracing the tracks athwart, is provided with a memory which is capable of storing one field portion of the video signal. The apparatus is arranged to alternately perform writing of the video signal reproduced by the reproducing head into the memory and reading of the stored signal from the memory in a cycle of periods shorter than one field period. Each of the writing and reading periods is set at a length of time which is an integer times as long as the horizontal scanning period of the video signal.

Abstract: A video camera includes in combination an image sensor, an image memory, a special effect circuit arranged to impart a special effect to the output signal of the image sensor by using the image memory, a selection circuit arranged to select either the output of the image sensor or that of the special effect circuit, and a control circuit which, in response to a pause of an image recording action, causes an image obtained when the pause is made to be stored in the image memory when the output of the special effect circuit is selected by the selection circuit.

Abstract: A video signal reproducing apparatus for reproducing a video signal recorded in many tracks which are formed on a record bearing medium has a high-speed video signal reproducing mode and is characterized by the inclusion of: A memory arranged to temporarily store the video signal read out from the medium by the reproducing head; a step-up circuit arranged to generate a step-up signal which is obtained by stepping up a periodic signal relative to the medium tracing period of the reproducing head; and a control circuit which is arranged to control signal writing into the memory in accordance with the step-up signal produced from the step-up circuit.