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| Number | Title | Issue Date |
| 4298859 | Digital video line delay circuit Shift registers are employed in a video line delay circuit coupling the output of an analog to digital converter to a digital processor in a line scan camera document reading system to permit a prescribed delay in the transmission of data to avoid loss of... | 11/03/1981 |
| 4286146 | Coded label and code reader for the coded label A coded label comprising a code pattern in which first and second segments respectively being substantially square and having reflection factors different from each other are arranged in at least four rows and two columns, and in which at least two of eit... | 08/25/1981 |
| 4275380 | Topography for integrated circuits pattern recognition array An integrated circuit for sequentially receiving a plurality of digital character words produced in response to optical scanning of a bar coded label and a plurality of corresponding binary signals representing, respectively, validity, scanning direction,... | 06/23/1981 |
| 4250405 | Apparatus for identifying production codes on articles The apparatus is particularly suited for identifying mould cavity numbers formed in binary code in the stippling on the base of glass containers. It comprises light beam detection means (2), such as a photodiode array, which scans an area of the article t... | 02/10/1981 |
| 4237375 | Opto-electronic apparatus for reading information contained in an information carrier An opto-electronic apparatus for reading out preferably coded information contained on a data carrier with high reliability and free of disturbances even when the insertion speed of the information carrier into an associated opening of the reading apparat... | 12/02/1980 |
| 4172553 | Apparatus for gauging hole position in punched material An apparatus for verifying the tolerance of the positions of holes in in form of a continuous web is moved over an opaque plate on which there are a plurality of transparent areas in the form of slits. The slits in the plate are illuminated by light sou... | 10/30/1979 |
| 4162035 | High resolution optical position code detector for information recorded on record carrier partially in humanly intelligible form An optical position code detector which senses information that is recorded on a record carrier. The record carrier preferably has scan marks for synchronizing operation of the detector and at least one track with positionally encoded data marks which inc... | 07/24/1979 |
| 4153895 | Mark sense reader A mark sense reader is disclosed that views each document individually to ascertain how each individual person has marked the document in regard to the density of each mark and then sets a reading threshold for that person. Each mark is scanned, divided i... | 05/08/1979 |
| 4149670 | Mark-sense card A mark-sense card is preprinted with alphameric characters one or more of which can be selectively activated by a stroke of a pencil or other writing implement. The card is also preprinted with at least one operator that can be selectively activated in a ... | 04/17/1979 |
| 4140271 | Method and apparatus to read in bar-coded information Bar symbols having different bar width for representing information are grouped and recorded on a surface of an object. A light-responsive sensor is swept automatically to repetitively scan the density of the surface-reflected light along the direction in... | 02/20/1979 |
| 4132352 | Information reader timing circuit Apparatus is presented for reading information characters present on a medium by scanning successive columns or lines. To prevent the occurrence of skewing of output signals when present among the responses of individual detectors to information character... | 01/02/1979 |
| 4128758 | Electronic order pricing system An electronic order pricing system including a data card having a plurality of item lines, each representing an orderable item with certain of the lines bearing indicia representing a quantity of items ordered by a customer, apparatus for reading the data... | 12/05/1978 |
| 4127769 | Marking message card and template assembly and related input switching circuitry and method of making the assembly A novel optically readable message card having columns of marking areas thereon where the vertically adjacent marking areas in a column are horizontally staggered. Also, a template for the message card and having columns of horizontally staggered marking ... | 11/28/1978 |
| 4085680 | Fuze encoder A photo-electric tape reader particularly adapted to ordnance use wherein power is provided by a setback generator, and which reader is free of the malfunctions caused by contact bounce and corroded surfaces of resilient metal contacts. The reader utilize... | 04/25/1978 |
| 4084140 | Programmable non-duplication switching device A non-duplicative switching arrangement for controlling a video or radio frequency switch is used in a cable television system for controlling the application of a distant station signal to the cable system to eliminate duplication in programming. A clock... | 04/11/1978 |
