Abstract: In an image signal recording system for recording on a recording medium an original image signal corresponding to an original picture which is comprised of a plurality of pixels, the original picture is divided into a plurality of pixel blocks each consisting of a predetermined number of pixels, and image signals each corresponding to the associated pixel block divided are recorded on the recording medium in accordance with a first recording mode and a second recording mode which are mutually different in a recording format. Either of the first and second recording modes is selected on each of the plurality of pixel blocks and a recording mode information signal corresponding to the selected recording mode is generated. There are recorded on the recording medium, the first image information signal or the second image information signal formed and the recording mode information signal generated, on a multiple basis.

Abstract: The present invention provides a sheet original supply apparatus including a conveyor for conveying a sheet original at a reading portion, and a supply device arranged upstream of the conveyor and adapted to send the sheet original to the conveyor, wherein after the sheet original starts to be conveyed by the conveyor and before the sheet original is read at the reading portion, the restraint of the sheet original by the supply device is released.

Abstract: An original transporting device for transporting an original to an exposure unit of a copying machine which includes a loading tray for loading the originals, a first separation unit, a first transporting unit, a second separation unit, a second transporting unit, a third transporting unit for transporting the original transported by the first transporting unit in a first direction, stopping it at the exposure unit, then transporting it in a second direction and transporting the original transported by the second transporting unit in the second direction to pass through the exposure unit.

Abstract: A video signal recording apparatus includes a memory for storing a one-picture portion of an input video signal. An overlapping device gradually switches a first video signal, read from the memory, to a second video signal during a first predetermined time period, and provides an output video signal. A recording device records the video signal output from the overlapping device. A first manual operation member sets the video signal recording apparatus to an overlap mode, in which the overlapping device is operated in response to a start of recording by the recording device. A second manual operation member sets the video signal recording apparatus to an interval recording mode, in which the recording device is periodically operated to record during every second predetermined time period.

Abstract: A video signal processing apparatus provided with a signal processing circuit including a memory capable of storing inputted video signals of one frame. In response to an operation of a manually operable freeze key, writing the video signals to the memory is inhibited, and reading the video signals from the memory is continuously performed. In response to a continuous operation of the freeze key in excess of a predetermined time period, the video signals of one frame are periodically written to the memory, and the video signals in the memory are continuously read. Various special effects can be given to images upon an operation of the single freeze key.

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: A video signal processing system for use in an apparatus that handles a composite color television signal having therein frequency-multiplexed luminance and chrominance signals frequency-multiplexed in the composite color television signal are separated, comprises: remark picture element signal extracting circuitry for taking part of the composite color television signal as a remark picture element signal and extracting the remark picture element signal from the composite color television signal; reference picture element signal extracting circuitry for taking the composite color television signal whose chrominance signal frequency-mutliplexed therein is of the reverse phase to the chrominance signal frequency-multiplexed in the remark picture element signal as a reference picture element signal and extracting a plurality of the reference picture signals from the composite color television signal; selecting circuitry for selecting out of the plurality of reference picture element signals extracted by the refe

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 melanocyte-stimulating hormone inhibitor has an amino acid sequence represented by the following formula [I], [II] or [III] in the molecule:--His--Ser--Arg--Trp-- [I]--Trp--Arg--Ser--His-- [II]--Leu--Ala--Cys--Ala--Arg-- [III]wherein His, Ser, Arg, Trp, Leu, Ala and Cys represent L-- or D-histidine, serine, arginine, tryptophan, leucine, alanine and cysteine residues, respectively. The melanocyte-stimulating hormone inhibitor and an external preparation to be applied to the skin which contains the inhibitor prevent or cure the symptoms of chloasmata and freckles caused by an excess production of melanin by enhanced melanocyte function.

Abstract: A video signal processing device comprising a subtractor for computing a difference signal between an input video signal and a video signal input a predetermined period before relative to the input video signal, a computer for applying a predetermined computation to the difference signal, an adder for adding that computation result to the input video signal or the video signal input the predetermined period before and outputting the result, a delay circuit for delaying the output of the adder by the predetermined period, and a dither generator for generating a dither pattern, being characterized in that the dither pattern generated by the dither generator is added to the signal output from the computer or the adder.

Abstract: An image information signal transmitting system for transmitting an image information signals which continuously forms a temporally correlated group of image planes is arranged to divide each image plane portions of the image information signal into a plurality of blocks; and, in determining for every divided block included in each of the image planes the adoption of one of a plurality of information transmitting modes provided for different information transmitting density values, the information transmitting modes for the plurality of blocks of a presently transmitting image plane portion of the signal are determined at least according to the information transmitting modes which hae been used for the plurality of blocks of a previously transmitted image plane portion of the signal.

Abstract: A system for transmitting information signal in which a temporally correlated group of image planes are continuously formed comprises: dividing means which divides the information signal into separate image planes and further divides each image plane portion of the signal into a plurality of blocks; first transmitting means for transmitting in a first degree of information density the first of the plurality of blocks obtained from the dividing means; second transmitting means for transmitting in a second degree of information density the second of the plurality of divided blocks obtained from the dividing means; and transmission inhibiting means for inhibiting transmission of the third of the plurality of divided blocks obtained from the dividing means by dividing a present image plane portion of the information signal.

Abstract: A video signal recording and/or reproduction apparatus in which an analog video signal from the inlet is digitized to form video data, then the video data are stored in a memory means for a time, then the stored video data are read out from the memory means before they are recorded on a recording medium. When reproducing the recorded video data from the recording medium, the reproduced video data are stored in a memory means for a time, then the stored video data are read out from the memory means, then the analog video signal is restored from the read video data, and then the analog video signal is produced at the output of the apparatus. Further, by taking the synchronism of the write and read control signals of different frequency for either of the memory means of the recording and reproducing systems, it is made possible to assure accurate and reliable conversion between the analog and digital forms of the video signals when either in the record or in the reproduction mode.

Abstract: An image expansion apparatus includes a FIFO-type image memory, writing and reading circuits for the image memory, and a plurality of cascade-connected delay circuits for sequentially delaying image data read out of the FIFO image memory. Image expansion in the main scanning direction is achieved by applying a delay to make the speed at which image data is read out of the FIFO image memory slower than that at which the image data is written in the FIFO image memory. Image expansion in the feed scanning direction is achieved by successively selecting and delivering outputs from delay circuits the number of which is equal to the magnification of the image.

Abstract: The video processing apparatus according to this invention is constructed to receive a composite television signal having frequency-multiplexed luminance and chrominance signals. The composite color television signal is divided into a plurality of picture element signals by sampling it, and the luminance and chrominance signals frequency-multiplexed in each of the plurality of picture element signals are separated. An arbitrary one of the plurality of picture element signals is extracted as a remark picture element. A plurality of picture element signals whose chrominance signal frequency multiplexed therein is of the same phase as that of the chrominance signal frequency multiplexed in said remark picture element signal is extracted as first reference picture element signals.

Abstract: A video signal reproducing apparatus for reproducing video signals from a record bearing medium on which many recording tracks are formed in parallel to each other with a given-period portion of the video signal recorded in each of the tracks are arranged: To compare, on the basis of signals reproduced by a reproducing head, the level of a reference signal with that of a reproduced state detection signal the level of which varies according to the reproduced state of the video signal; to determine, on the basis of the result of comparison, whether or not the video signal reproduced by the reproducing head is to be written into a memory device which is capable of storing the given-period portion of the video signal therein; and to change a level relation between the reproduced state detection signal and the reference signal from one level relation over to another according to the track pitch of the recording tracks which is detected using the signals reproduced by the reproducing head.

Abstract: In a video signal reproducing apparatus of the kind reproducing a video signal from a record bearing medium on which a predetermined period portion of the video signal is recorded together with a pilot signal in each of many recording tracks formed in parallel with each other: a tracking error signal is generated on the basis of pilot signals reproduced by a reproducing head; and each of the predetermined period portions of the video signal reproduced by the reproducing head is determined to be or not to be stored at a memory which is capable of storing the portion of said video signal covering a predetermined period of time.

Abstract: A video signal reproducing apparatus is provided with a memory which is capable of storing a portion of a video signal covering a predetermined period of time and is arranged: To allow a record bearing medium on which the predetermined period portion of the video signal is recorded in each of many recording tracks formed in parallel to travel at a given speed different from a speed employed in recording; and to decide whether or not each of the video signal portions reproduced by a reproducing head is to be stored by making the decision on the basis of the signal reproduced from each of the tracks by the reproducing head.

Abstract: An image signal recording apparatus of the kind handling and recording on a recording medium an image signal which corresponds to a still image consisting of a plurality of horizontal scanning lines and which consists of a plurality of horizontal scanning line information signals corresponding to the horizontal scanning lines is arranged to receive the image signal by the unit of the horizontal scanning line information signal; to obtain horizontal scanning line information data by digitizing the horizontal scanning line information signals; and to form an n number (n: an integer which is at least one) of recording tracks on the recording medium by recording on the medium the horizontal scanning line information data which corresponds to an m number (m: an integer which can be expressed as 1.ltoreq.m.ltoreq.10) of horizontal scanning lines.