Abstract: Apparatus for processing a color video signal produced by an imager. A low-pass filter supplied with the color video signal from the imager generates a luminance signal to which is added an outline component produced by a level correcting circuit that receives the color video imager signal and passes a level-corrected imager signal through a bandpass filter which extracts therefrom the outline component.

Abstract: An apparatus for reading an image of a sheet has conveying apparatus for conveying the sheet, a transparent member contacting a surface of the sheet conveyed by the conveying apparatus, and a photoelectric conversion element disposed on the transparent member or on the side opposite to the surface of the transparent member which contacts the surface of the sheet. A low friction portion is formed on that portion of the transparent member which contacts the conveying apparatus.

Abstract: A digital camera apparatus has an analog emphasis circuitry arranged such that when an output from a charge-coupled device (CCD) forming the imager and cooperating with a complementary color, checkered pattern filter is processed in a digital fashion, an analog carrier chrominance signal component is emphasized before being converted to a digital signal, thus making it possible to reduce adverse influence caused by quantization noise.

Abstract: A noise reduction circuit comprises a high pass filter for extracting a signal component containing noise from an input signal, a variable level limiter for limiting the level of the signal component extracted by the filter to produce a noise suppressing signal, and a level adjustor for adjusting the level of the noise suppressing signal. A level detector detects the level of the input signal, and a control signal generator generates first and second control signals based on the detected output of the level detector, supplies the first control signal to the level limiter so as to control the limit level thereof, and supplies the second control signal to the level adjustor so as to control the gain thereof. In a signal subtracter, the noise suppressing signal from the level adjustor is added with reversed polarity to the input signal to suppress the noise contained in the input signal and thereby produce a low-noise output signal.

Abstract: A color signal matrix circuit for producing first and second color difference signals from three primary color signals employs a reduced number of digital circuit elements and includes a first subtractor for producing a first color subtraction signal based on red and green primary color signals, a second subtractor for producing a second color subtraction signal based on blue and green primary color signals, a first level adjuster receiving the first color subtraction signal, a second level adjuster with a variable level factor receiving the second color subtraction signal, a third subtractor receiving the first color subtraction signal from the first level adjuster and the second color subtraction signal from the second level adjuster for producing the first color difference signal, and a third level adjuster receiving the second color subtraction signal, a fourth level adjuster with a variable level factor receiving the first color subtraction signal, and a fourth subtractor supplied with the second color s

Abstract: This specification discloses a sheet material receiving device provided near the lower part of the sheet material discharging portion of an image forming apparatus such as a facsimile apparatus or a copying apparatus to receive sheet materials discharged from the image forming apparatus. The sheet material receiving device is provided with a first guide member against which the leading end of each discharged sheet bears and by which the sheet is directed downwardly, and a second guide member opposed to the first guide member and forming a sheet receiving space, and has a gripping portion for holding down the sheet material received in the sheet receiving space, or the first guide member is openable.

Abstract: An image processing apparatus in which the respective functional sections in the apparatus are clearly separated and constituted as units, thereby raising the productivity, and at the same time the maintenance for the reading optical system and for the jam processing of the sheets and the like can be easily performed. The enclosing space for the recording sheets discharged is built inside the casing, and the original base is also used as the cover for the recording system unit, thereby realizing a small and thin sized apparatus. Further, the heat generated from the power source unit and recording head can be easily radiated.

Abstract: Disclosed is a synchronizer for establishing synchronism between horizontal and vertical sync pulses of a non-interlaced video signal and those of an interlaced video signal, the number of non-interlaced scan lines being smaller by 2n-1 than the interlaced scan lines, where n is an integer equal to or greater than unity. Two variable frequency clocks are generated, one having a higher frequency variable as a function of a phase difference between the horizontal sync pulses of the two video signals and the other having one half the higher frequency. A first period is defined which runs from a non-interlaced horizontal sync of first occurrence in a given field to a horizontal sync of (n-1)th occurrence in the given field and a second period is defined that runs from the non-interlaced horizontal sync of first occurrence in a subsequent field to a horizontal sync of n-th occurrence in the subsequent field.

Abstract: Perforations are formed at predetermined positions of a rolled record paper to facilitate cut out of the record paper at the predetermined positions. A perforating wheel for forming the perforations is made of a plurality of materials to enhance durability and reduce a cost. The positions of the perforations on the record paper are set at front and rear edges of a recorded image or at an area between recorded images so that the record paper is properly cut out.

Abstract: A device for preventing a sheet-like original, when conveyed to a position for reading the image information of the original, from being conveyed to the reading position in an oblique condition with respect to a proper direction. When the original 14, 25, 81 is conveyed along a guide surface 5 while being held between a ball, 8, 23, 33, 44, 51, 71, 75 and an opposed member 6, 22, 29, 31, 50, 70, 76, this device conveys the original at a certain angle with respect to the guide surface, thereby automatically correcting to a proper direction the original being obliquely fed.