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| Number | Title | Issue Date |
| 4472710 | Spatula-shaped light pen A light pen is provided with an elongated or spatula-shaped light receiving end which houses a plurality of optical fiber tubes in either a linear or two-dimensional array. The device is useful for simultaneously reading the coordinates of a plurality of ... | 09/18/1984 |
| 4457016 | File label reading system The present invention provides a manually controlled wand which is particularly suited for use in a file control system in which the files are provided with machine readable codes located along an edge of the file. The wand is adapted by the provision of ... | 06/26/1984 |
| 4414546 | Apparatus for and methods of identifying horses by scanning their chestnuts The identity of horses is established by optically scanning the four "chestnuts" located on the insides of their legs to generate digital numbers corresponding to the width, height and area of each chestnut. These numbers are encoded digitally with an app... | 11/08/1983 |
| 4402088 | OCR And bar code reading using area array An electronic scanner scans both bar code characters and alphanumeric characters producing a set of electrical signals. The electrical signals are examined by both a alphanumeric optical character reader and a bar code reader and the system outputs a sign... | 08/30/1983 |
| 4386433 | Character doubling eliminator A circuit utilizing four flip flops and a number of gates is used to prevent character doubling when reading optically with a hand held optical character reader. The character can move partially out of and then back into the scanning view without losing c... | 05/31/1983 |
| 4349730 | Data processing device for reading and processing visually observable information present on a data carrier The data processing device for reading and processing visually observable information taking place on a data carrier includes a hand operated reading unit guidable in a first direction along a line of the text on the data carrier; scanning unit in the for... | 09/14/1982 |
| 4277689 | Document reader An optical character reader for conversion of information to a machine readable code from a strip of alpha-numeric characters on the face of a document. It includes an elongated document slot along which the document may be hand guided through a predeterm... | 07/07/1981 |
| 4276541 | Display control of hand-written, memorized pattern at a preselected time A hand-written pattern is introduced through a matrix input means and stored in a matrix memory. An alarm time is set and stored in an alarm time memory. A detection circuit develops a detection output when the current time reaches the alarm time set in t... | 06/30/1981 |
| 4260979 | Apparatus for sensing non-coded images Scanning apparatus is provided for sensing non-coded images on a substrate. Hand-held scanning apparatus comprises a group of light sensitive elements for sensing the light and dark pattern of the image as the scanner is moved across the substrate and mea... | 04/07/1981 |
| 4251798 | Portable laser scanning arrangement for and method of evaluating and validating bar code symbols Laser light reflected from a bar code symbol pattern is detected by a photodetector mounted in a portable scanning head of a laser scanning system. By selecting appropriate threshold values on the analog signal generated by the photodetector, the analog s... | 02/17/1981 |
| 4251800 | Tilt compensating AGC A correcting bias is applied to the video signal from a hand-held optical character reader to compensate for horizontal tilt of the hand-held reader and also to increase the acceptability of photodiode arrays which are used in the reader and to correct un... | 02/17/1981 |
| 4250488 | Device for scanning patterns with a regulated light source Patterns on a recording medium are scanned, with reflected light from a light source, and interference factors occurring from fluctuating diffused reflectance of the recording medium and the changing distance of the light source from the scanning field ar... | 02/10/1981 |
| 4246570 | Optical wand for mechanical character recognition An optical wand for automatically recognizing characters in a plurality of fonts incorporates a manually movable scanner incorporating a light source and a sensor array composed of a diode matrix. A first preprocessing unit is connected to receive the out... | 01/20/1981 |
| 4204636 | Interface between data reading wand and cash register display Circuitry receives data information from a wand and decodes the same for duplicating a keyboard input to a display. The interface circuit includes a plurality of switches paralleling the keyboard input switches and generates autonomously a control signal ... | 05/27/1980 |
| 4180204 | Automatic inventorying system A method and means for automatically inventorying items having coded tags or labels using a character-recognition device, such as a wand scanner, in combination with a system for specially marking the labels when they have been successfully read and recor... | 12/25/1979 |
| 4158194 | Optical recognition system Described is an optical character recognition system wherein total data entry is accomplished through a hand held unit. The unit includes an optical scanner, a keyboard and a display which communicate with a portable character recognition unit.... | 06/12/1979 |
| 4143358 | Wand lamp control A lamp control for a hand-held OCR wand having a photosensor array positioned to sense light reflected into the wand through a reading aperture therein. A lamp is carried by the wand for illuminating the field facing the reading aperture. Recognition mean... | 03/06/1979 |
| 4118687 | Portable OCR system Disclosed is a portable optical character recognition system which may be used as a point-of-sale or inventory taking system which operates from battery power and may be moved from place to place without difficulty. The system includes an edit and sequenc... | 10/03/1978 |
| 4115703 | Hand held optical reading device A molded housing is formed by two opposing mating sections and includes a forward head portion projecting from a handle portion. The housing sections confine therebetween a lens barrel and a light source which have corresponding inclined axes converging t... | 09/19/1978 |
| 4104616 | Hand operated optical character recognition system A hand operated optical character recognition system utilizes a one dimensional array of photo-sensitive elements divided into a plurality of groups, each group having at least one photo-sensitive element and defining a unit region to be scanned on a shee... | 08/01/1978 |
| 4088981 | Automated data entry and display system The present invention relates to an automated data entry and display system. In this system a hand held photoelectric wand scans a document bearing alpha-numeric characters and reads these characters by generating electrical signals which correspond to th... | 05/09/1978 |
| 4061380 | Rotational strain relief with inline plug Disclosed is a tubular structure for rotationally interconnecting two bodies both mechanically and electrically. The tubular member is firmly attached to one member and extends through the other member. Electrical wires extend through the tubular member a... | 12/06/1977 |
| 4048617 | Retrace data elimination This invention relates to modification and utilization of signals developed by automatic reading systems where a hand-held optical unit scans a data field or alpha-numeric characters, and more particularly, to operations which eliminate redundancy in sign... | 09/13/1977 |
| 4045816 | Automatic corrector for fixed pattern odd/even video noise Fixed pattern odd/even noise in the video signal output from a self-scanned photosensor array is substantially eliminated by integrating the video signal at the cell scan rate, and converting the resultant to a pulse having a width proportional to the cha... | 08/30/1977 |
| 3976973 | Horizontal scan vertical simulation character reading Variations in scan rate and in position of a character within a field resulting from positional inaccuracies caused by use of a hand-held scanning device and/or loosely constrained document printing mechanisms and techniques are accommodated by sweeping a... | 08/24/1976 |
| 3964022 | Hand-held scan data handling system Optically reading and processing alphanumeric data using a hand-held wand by passing a two-dimensional array of photosensitive elements horizontally along a line of data to be read. An optical image of the data is focused upon the array to produce digitiz... | 06/15/1976 |
| 3947817 | Hand operated optical character recognition wand An optical data reader and processor utilizing a two dimensional array of photosensitive elements operated at a high frame rate; a shift register of one character width, and greater than one character height to store the binary representation of the chara... | 03/30/1976 |
| 3936596 | Optical projection apparatus An optical projection apparatus including a projection screen on which a microimage is projected on an enlarged scale and adapted to be connected with an information processing system comprising; Microfilm feeding means which feeds and stops a microfilm on whi... | 02/03/1976 |