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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4547897 | Image processing for part inspection Apparatus for use with black and white processing systems to detect and identify color as observed by a color television camera including a chromakeyer which is set to select a particular color and submit this as part of the information to the image proce... | 10/15/1985 |
| 4546007 | Multi-layer coating method based on spectral reflectance of white or gray colors The invention provides a method for forming a multi-layer coating comprising applying over an intercoat of a white or gray color, a colored top coat at incomplete hiding, thereby obtaining a color very similar with that of a top coat applied at complete h... | 10/08/1985 |
| 4532738 | Method of removing a coating An improved method for determining that coating has been removed from an article surface is provided for use in a method of removing a selected coating from an article surface having a composition different from the coating by impacting the coating with a... | 08/06/1985 |
| 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 |
| 4494875 | Method and apparatus for monitoring and evaluating the quality of color reproduction in multi-color printing Color control strips of sheets in a multi-color printing press are monitored by a light beam which is reflected by successive increments of the patches of the strip and passes through the filters of a filter wheel. The thus obtained color density signals ... | 01/22/1985 |
| 4488808 | Print inspecting device In a print inspecting device, the entire print area is scanned by a plurality of light emitting and receiving units arranged in one straight line to obtain image data from the print, and the image data thus obtained are compared with the standard data als... | 12/18/1984 |
| 4439037 | Process for optically determining the meat-to-lard-ratio in for instance slaughtered animals By a process for optically determining the meat-to-lard-ratio in for instance slaughtered animals, a probe is inserted perpendicular to the surface of the animal. This probe (7) comprises at least two light fibres (1, 2) opening on to the surface of the p... | 03/27/1984 |
| 4348803 | Process for producing a semiconductor device having an identification mark in an insulating substrate In a process for producing a semiconductor device using an insulating substrate, a so called SOS device, a semiconductor layer is formed on the insulating film and semiconductor elements are formed in the semiconductor layer, material, which develops colo... | 09/14/1982 |
| 4349279 | Method for the color evaluation of pattern models of fabric, _decoration or packaging printing, and a color evaluation device A method for the color evaluation of pattern models of fabric, decoration or packaging printing which, in particular, exhibit bleeding color areas, i.e. color areas of differing color saturation and/or brightness, and a color evaluation device with a colo... | 09/14/1982 |
| 4346997 | Positive pressure maintenance for sample presentation The invention relates to a method of presenting a non-rigid sample to a color measuring instrument, and such an instrument modified in accordance with the invention to provide proper sample presentation. Fluid under pressure is continuously supplied to th... | 08/31/1982 |
| 4312728 | Method for determining boundary points on electrophoretic densitograms A method for determining boundary points on electrophoretic densitograms comprising a bounding point judging step for locating boundary points on electrophoretic densitograms, a normal fraction judging step for judging whether or not the boundary points l... | 01/26/1982 |
| 4310248 | Color control system A color control system for color separation, developing and printing fields including a plurality of strips of film with each strip containing color information and combining to form a color proof. A proof can be analyzed by eye or compared with a control... | 01/12/1982 |
| 4309604 | Apparatus for sensing the wavelength and intensity of light Disclosed is a solid state wavelength detection system responding to output signals derived from a photoelectric semiconductor device. The photoelectric semiconductor device comprise at least two PN junctions formed at different depth from the surface of ... | 01/05/1982 |
| 4308456 | Method and apparatus for measuring the frequency of radiation A method and apparatus for measuring the frequency of radiation is described comprising a pair of filters (2,3) or a beam splitter (30) responsive to radiation from a source of radiation (4) for providing a first output having a magnitude which increases ... | 12/29/1981 |
| 4297035 | Method and device for detecting a specific spectral feature A method and device for detecting a narrow spectral feature in a sample is described. The method includes the steps of providing a beam of light having an optical frequency bandwidth which is narrow compared to the width of the narrow spectral feature and... | 10/27/1981 |
| 4260261 | Optical food probe The application discloses a food probe comprising an optical rod insertable in a body of food, for example, a roast of meat. At its inner end, the rod is configured to receive and transmit axially through the rod a color image of the food in the area cont... | 04/07/1981 |
| 4259020 | Automatic calibration control for color grading apparatus Apparatus for color grading of products such as fruits, vegetables, et cetera, employing a light source for illuminating the product and means for detecting and comparing the reflectance to measure certain product properties. For calibration, a target of ... | 03/31/1981 |
| 4249827 | Arrangement for color coding of surfaces An arrangement in which different surfaces of an object have applied to them transparent layers of different colors. Each layer will transmit one or more colors, while inhibiting the transmission of one or more other colors. By applying different color la... | 02/10/1981 |
| 4244797 | Quantitative protein analysis by immunodiffusion Methods and apparatus are described by which immunochemical procedures such as immunodiffusion and immunoelectrophoresis can be used to provide quantitative measurement of the concentration of individual proteins in fluids such as serum, spinal fluid, tis... | 01/13/1981 |
| 4232971 | Integrating sphere type standard light source device An integrating sphere type standard light source has a spherical shell the inner surface of which is coated with a white coating having a high reflectivity. The shell has a light source aperture in the top thereof, a viewing aperture in the side thereof a... | 11/11/1980 |
| 4215940 | Optode arrangement Monochromatic excitation light is passed into an indicator chamber to exc the indicator therein. The side of the indicator chamber in contact with the substance to be analyzed is closed off by a membrane which is permeable to the component of that substa... | 08/05/1980 |
| 4211488 | Optical testing of a semiconductor A method of optically testing electrical parameters of a surface of a semiconductor including carrier mobility and recombination time is disclosed which includes the step of irradiating the surface with a first beam of monochromatic light having a wavelen... | 07/08/1980 |
| 4203671 | Method of detecting flesh color in color originals Red, green and blue densities of a number of points of a color negative or original are measured. If the measured values of the densities fall within an ellipsoid when plotted in a three dimensional coordinate system or within an ellipse when plotted in t... | 05/20/1980 |
| 4185920 | Color displaying apparatus The present invention is a color displaying apparatus for display and comparison of the chromaticity and brightness of colors. The chromaticity chart and brightness scale positions of colors having known x-y-Y values set into the apparatus are automatical... | 01/29/1980 |
| 4184767 | Frequency agile optical radar A frequency agile optical radar system including a frequency agile laser rce coupled with an extra-cavity dispersive element in such a manner as to radiate into space specific optical frequencies correlated with specific elevation angles measured from th... | 01/22/1980 |
| 4164374 | Spectrophotometer utilizing a solid state source of radiant energy having a controllable frequency spectra characteristic A solid state source of radiant energy having a characteristic frequency spectra with a high frequency cutoff .nu.co, which is a function of the applied voltage value. The source is a metal-insulator-metal tunnel junction wherein the insulator ... | 08/14/1979 |
| 4162208 | Quantitative protein analysis by immunodiffusion Methods are described by which immunochemical procedures such as immunodiffusion and immunoelectrophoresis can be used to provide quantitative measurement of the concentration of individual proteins in fluids such as serum, spinal fluid, tissue extracts a... | 07/24/1979 |
| 4101222 | Spectrophotometer sample holder with improved sample viewing apparatus An improved sample holder for a spectrophotometer includes a stationary base that forms a cylindrical cavity and supports a fiber optic head assembly over the cavity for analyzing the color of a sample that is positioned adjacent the base and under the ca... | 07/18/1978 |
| 4096949 | Apparatus for performing a three-way sort Apparatus for three-way sorting of particles in a singulated particle stream is characterized by a viewing assembly including a first and a second classifying section each respectively classifying each particle passing therethrough according to first and ... | 06/27/1978 |
| 4090243 | Color separating method and apparatus using statistical techniques A color print painted with different colors Ci (i = 1, 2 . . . n) is scanned by a color scanner along a plurality of successive line paths to generate a set of electrical signals each representing the intensity of the spectral components of the... | 05/16/1978 |
| 4082189 | Apparatus for separating food articles from field debris Mobile apparatus movable over a crop bearing field such as a field in which onions or garlic are grown. The apparatus includes a pickup device for lifting the food product from the field surface onto a conveyer within the apparatus. Also included are devi... | 04/04/1978 |
| 4074808 | Sorting apparatus Optical sorting apparatus wherein during sorting, articles are directed to free fall through an illuminated inspection chamber. A light reflecting background positioned in the chamber is adjustable to form a variable reference standard of reflectivity. A ... | 02/21/1978 |
| 4050820 | Light-reflecting analytical device A device is disclosed for spectral analysis of light reflected from liquid crystal materials. The device includes a light source, a liquid crystal material stage, and a scattered light receiving screen. In operation, the liquid crystal material stage and ... | 09/27/1977 |
| 4033698 | Apparatus for textile color analysis In a textile color analyzer, a sample of textile is supported on the pad of an elevator mechanism that holds the sample against an instrument head. The head has an opaque housing provided with a chamber having an opening therein. A glass plate is mounted ... | 07/05/1977 |
| 4029419 | Textile color analyzer calibration A spectrophotometer is operative to measure or analyze the colors of materials such as textiles. A test sample is held by a holder and is illuminated by polychromatic light. Diffuse light reflected from the sample is collected and converted to variable mo... | 06/14/1977 |
| 4019819 | Optical property measurement and control system In an illustrated embodiment, brightness, color, opacity and fluorescent contribution to brightness are measured by an on-line sensing head providing for simultaneous measurement of transmitted and reflected light. By measuring two independent optical par... | 04/26/1977 |
| 4011016 | Semiconductor radiation wavelength detector A double-layer photodiode is created in an integral structure to form two diodes, the upper diode having a relatively thin active region and the lower diode a relatively thick active region. Light whose wavelength is to be measured is directed onto the up... | 03/08/1977 |
| 3999860 | Apparatus for textile color analysis In a textile color analyzer, a sample of textile is supported on the pad of an elevator mechanism that holds the sample against an instrument head. The head has an opaque housing provided with a chamber having an opening therein. A glass plate is mounted ... | 12/28/1976 |
| 3985449 | Semiconductor color detector A system for detecting and analyzing the color of light impinging on a solid state imaging device or scanner. The scanner is composed of a triplet array of semiconductor photoelements with each photoelement in the array biased to act as a unique detector ... | 10/12/1976 |
| 3936188 | Color sorting of irradiated materials and a calibrated color comparison array Methods of isolating quartz, quartzite, glass or silicate materials having selected aluminum contents are described. The non-destructive method comprises subjecting the materials to ionizing irradiation for a period of time and at an intensity (preferably... | 02/03/1976 |
