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| Number | Title | Issue Date |
| 6084693 | Process and apparatus for the determination of halftone percentage values The invention relates to the use of a spectrophotometer connected with a computer to measure and store a solid color atlas in the computer. The halftone percentage values necessary for the adjustment of a given color are calculated by determining the desi... | 07/04/2000 |
| 6041708 | Process and apparatus for controlling the inking process in a printing machine To improve the control of the inking process in an offset printing machine, color measuring fields provided on printed sheets are evaluated not as heretofore densitometrically but colorimetrically by means of spectral measurements. Spectral reflections ar... | 03/28/2000 |
| 5530563 | Process and apparatus for the determination of halftone percentage values The invention relates to the use of a spectrophotometer connected with a computer to measure and store a solid color atlas in the computer. The halftone percentage values necessary for the adjustment of a given color are calculated by determining the desi... | 06/25/1996 |
| 5519210 | Apparatus and a process for recording photometric data that is positioned in succession or in adjacent fashion on a page-like or strip-like print An apparatus for recording photometric data that is positioned in succession or in adjacent fashion on a page-like or strip-like print is equipped with at least one reflectance measuring unit with a reflectance measuring lens for measuring opaque prints (... | 05/21/1996 |
| 5426508 | Manual densitometer with manully operated dial A manual densitometer for measuring the color composition of an original has a housing which includes a unit for measuring the original, a unit for controlling the measuring, as well as an evaluating electronics and display unit which displays selected va... | 06/20/1995 |
| 5267178 | Photometric process and computer controlled photometer A computer controlled spectrophotometer is equipped with a serial interface to which a bar code reader can be connected. Using the bar code reader, calibration and configuration data or functional commands for the spectrophotometer may be read from a data... | 11/30/1993 |
| 5206707 | Apparatus for the analysis of print control fields A microcomputer controlled manual densitometer for the analysis of print control fields has a manual and an automatic operating mode. In the manual mode the measuring functions desired are selected by the operator, while in the automatic mode the measurin... | 04/27/1993 |
| 5113258 | Compensation circuit for the correction of image defects of a television image In a compensation circuit for the correction of image defects of an image projection system according to the control layer principle, in particular of an eidophor projector, a compensation signal is produced from signals associated with three adjacent lin... | 05/12/1992 |
| 5068810 | Process for the determination of colorimetric differences between two screen pattern fields printed by a printing machine and process for the color control or ink regulation of the print of a printing machine In a process for the evaluation of the quality of prints and for the color control or ink regulation of a printing machine, half tone fields, preferably gray balance fields, are scanned by a densitometer. The half tone density differences obtained by comp... | 11/26/1991 |
| 5020106 | Process for the cryptographic processing of data and cryptographic systems In a process for the cryptographic processing of data in a cryptographic system, processing takes place in two parts. In the first part the data transmission routines within a data entity and a coded text entity are detected. The clear text and the crypto... | 05/28/1991 |
| 5015088 | Illuminating apparatus for projection purposes In an illuminating apparatus for projection purposes, in particular a film projector or television image projector by the eidophor system, four condensers are located around a source of light in a cube-shaped housing, the condensers reproducing via the us... | 05/14/1991 |
| 4975862 | Process and apparatus for the ink control of a printing machine A three-color offset printing machine produces, during the printing of sheets, color measuring strips with several color measuring fields. A gray half-tone field produced by the overprinting of three colors serves as the reference field. The color locatio... | 12/04/1990 |
| 4968140 | Manual device for the determination or measurement of photometric data using a measuring head A manual device for the detection of photometric values on a printed product comprises a measuring head extruding from a housing into a measuring position. The measuring head is mounted together with its optical components on a measuring carriage, which m... | 11/06/1990 |
| 4961646 | Manual device for the detection of optical reflection properties A manual device for the detection of photometric data which includes a measuring head to illuminate a measuring surface and to detect the light reflected. The measuring light captured by the measuring head is spectrally decomposed by a monochromator conta... | 10/09/1990 |
| 4865456 | Measuring head A measuring head for the determination of the optical reflectance properties of color measuring fields co-printed with color sheets includes an optical illuminating device having two Mangin mirrors and an aplanar system located in alignment with the Mangi... | 09/12/1989 |
| 4779963 | Optical image amplifier apparatus Light emitted by a source arrives through a system of lenses and a first system of bars on the control layer of a control element. The light is reflected and refracted in keeping with local deformation of the control element nad then conducted through a c... | 10/25/1988 |
| 4713537 | Method and apparatus for the fine position adjustment of a laser beam On an essentially non-absorbing plate located in the focal plane of a laser beam to be adjusted, a plurality of marks is arranged in a definite pattern. The marks deflect the laser light incident upon them by refraction, scattering, diffraction or otherwi... | 12/15/1987 |
| 4705376 | Process and apparatus for treating objects forming separate series In a production line for photographic copies the individual sheets leaving the copy portion of the production line are distributed over a plurality of output conveyors and transported in accordance to a predetermined distribution pattern through a subsequ... | 11/10/1987 |
| 4675500 | Laser processing apparatus with means for selectively varying the transverse mode distribution of the laser beam In the resonator of a laser generator, variable mode selective structure is provided to permit electrically actuated adaptation of beam parameters to required operating conditions. Such structure can be implemented with one or more pivotal plates, each ha... | 06/23/1987 |
| 4671661 | Process, apparatus and color measuring strip for evaluating print quality A color measuring strip having a plurality of different measuring fields includes information codes located either laterally adjacent to, or between, individual measuring fields. The information codes are individually assigned to respective measuring fiel... | 06/09/1987 |
| 4665496 | Process and apparatus for the evaluation of the printing quality of a printed product by an offset printing machine Printed products and their respective corresponding printing plates are divided into a plurality of image elements. For each image element the surface coverage is determined by photoelectric measurements; a reference reflectance value is then calculated f... | 05/12/1987 |
| 4660159 | Process and apparatus for the regulation of ink feed controls in an offset printing machine Printed products and their respective corresponding printing plates are divided into a plurality of image elements. For each image element the surface coverage is determined by photoelectric measurements; a reference reflectance value is then calculated f... | 04/21/1987 |
| 4649502 | Process and apparatus for evaluating printing quality and for regulating the ink feed controls in an offset printing machine The printed sheets are scanned, by image elements, immediately behind the last printing mechanism, with one or several measuring heads. Suitable dimensions of an image element range from approximately 1×1 mm2 to 10×10 mm2. In each ... | 03/10/1987 |
| 4645350 | Densitometer A densitometer is described which is equipped with an extendable and retractable measuring head driven by an electric motor. In the retracted rest position, a measuring diaphragm is visible to the user and the instrument may be positioned. In the extended... | 02/24/1987 |
| 4633074 | Method and apparatus for focusing a beam of light on an object Focusing of a light beam on an object is effected by two mutually complementary techniques: in the first technique the beam spot on the object is reproduced on several measuring diaphragms arranged at different distances from the image plane and the light... | 12/30/1986 |
| 4618982 | Digital speech processing system having reduced encoding bit requirements A digitized speech signal is divided into sections and each section is analyzed by the linear prediction method to determine the coefficients of a sound formation model, a sound volume parameter, information concerning voiced or unvoiced excitation and th... | 10/21/1986 |
| 4589131 | Voiced/unvoiced decision using sequential decisions Speech signal is decided voiced or unvoiced by a sequence of unilateral decisions: a first test decides "unvoiced" if standardized energy Es is below a threshold, or "ambiguous" if above the threshold whereby a second test decides "unvoiced" if... | 05/13/1986 |
| 4552029 | Pivoting device A crank pin is eccentrically located on a motor driven crank plate. The pin engages a radial slot of a two-arm intermediate pivot lever in the manner of a Geneva drive. A bearing socket is located on the arm of the intermediate pivot lever opposite the sl... | 11/12/1985 |
| 4552285 | Unloading device Flat objects, such as disk shaped print masters, that are stacked in a magazine are pressured by an ejector against the ejection orifice of the magazine. A support surface for the ejected object is located under the ejection orifice. The ejector is actuat... | 11/12/1985 |
| 4545675 | Transport device for disk shaped print masters Disk shaped print masters are guided by means of a carrousel in step wise rotation through a series of processing stations. Support elements for the print masters are arranged on the periphery of the carrousel. A displaceable radially locking pin is assoc... | 10/08/1985 |
| 4536083 | Process and apparatus for the production of photographic prints from disk shaped masters A printing apparatus equipped for disk shaped print masters is provided with a magazine carrousel for four standardized double magazines and a disk carrousel to transport the print masters through individual processing stations. Different transport means ... | 08/20/1985 |
| 4505589 | Process and apparatus for the colorimetric analysis of printed material On a measuring table (1), a bridge (2) extends over a printed sheet (5) to be measured. A measuring carriage (3) carrying a three color-simultaneous measuring head is arranged on the bridge (2) for linear movement in a back-and-forth manner along a desire... | 03/19/1985 |
| 4483612 | Device to position a copy master in a copying apparatus Two pairs of pivotable flap clamps are arranged on a copy master stage in the area of its exposure window, each pair having flaps respectively disposed above and below the master plane. The pairs of flaps are driven by means of an electromagnet and can be... | 11/20/1984 |
| 4441095 | Code translator Means for converting characters of a first 128-character alphabet (ASCII) into characters of a second 26-character alphabet are provided and convert each pair of characters of the first alphabet into three characters of the second alphabet and vice versa.... | 04/03/1984 |
| 4432637 | Apparatus for the preparation of sections of photographic film for passage through a continuous printer, particularly for processing of photographic print reorders A transport device conveys film sections, possibly equipped with a reorder strip and mounted on a carrier strip, stepwise through an inspection section. An entering keyboard is provided to read the data to be assigned to each image frame of the film strip... | 02/21/1984 |
| 4371258 | Illuminating device for photographic copying apparatus An illuminating system has as main components: a light source comprising four low voltage lamps and, associated therewith, reflectors and condenser lenses, a filter unit, an image-producing pair of lenses, a deflecting mirror and light-mixing element made... | 02/01/1983 |
| 4369434 | Enciphering/deciphering system The enciphering section of an enciphering/deciphering system includes a random number generator, a primary code memory and a multiplex unit in addition to the actual enciphering unit. The deciphering section includes a deciphering unit, a primary code mem... | 01/18/1983 |
| 4368969 | Apparatus for guiding finite film strip portions during their conveyance Film strip portions are attached spacedly on a carrier strap so as to project with substantially their entire bredth from said carrier strap, thus constituting together with the latter a composite unit suitable for being conveyed through a photographic de... | 01/18/1983 |
| 4341473 | Measuring head in or for a densitometer A measuring head for a densitometer comprises a light source and an optical system for forming a spot of light of defined size on the surface of an object under test. The optical system guides the reflected or transmitted light, depending on the type of d... | 07/27/1982 |
| 4313031 | Encipher-decipher device having semi-automatic generation of the code key during data entry An encipher-decipher apparatus including an input keyboard and a processing and control stage which enciphers or deciphers data received directly from the keyboard or preferably from a text store with the aid of a cipher generator. The cipher generator pr... | 01/26/1982 |
