Matches 101 - 150 out of 174 < 1 2 3 4 >
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5468946 Method and apparatus for decoding multi-level bar codes or bi-level bar codes  
This is a bar code decoding method and apparatus that decodes the bar codes from digital video data. The apparatus will decode multi-level bar codes, as well as bi-level bar codes, but only a...
5451761 Bar code demodulating method  
A bar code demodulating method includes a step of measuring lengths of successive characters of a bar code, a step of obtaining a ratio of the length of a demodulating character which is to be...
5440110 Bar code scanner and method of scanning  
A method and an apparatus facilitate scanning an Add-On code portion of a bar code label to determine the bar code data printed thereon by sweeping a scanning beam in a scan path across the Add-On...
5438188 Method and apparatus for decoding bar code images using information from previous scan lines  
A method and apparatus for decoding a pixel image representative of a bar code symbol. A bar code symbol is scanned along a first scan line to determine a first set of candidate character values,...
5414252 High speed scan bar code reader which can read more than one type of bar code  
A bar code reader using a high speed scanner, containing: a scanning unit scanning a surface on which a bar code is printed; a bar width detecting unit successively detecting widths of bars; a bar...
5329104 Automatically identifying decode apparatus  
The present invention provides an automatically identifying decode apparatus comprising a decoder unit 1 and a counter 2, wherein: the decoder unit 1 further comprises a plurality of decoders...
5326961 Bar code reader with comparison of bar widths and signal transitions  
In a bar code reading device in which an image of a bar code is Converted into an information signal having transitions corresponding to bar data in the bar code, a first counter counts the numbers...
5324924 Bar code decoder with changeable working ranges  
An arrangement for decoding a bar code symbol in which the data resulting from scanning a bar code symbol with a bar code scanner is evaluated to determine if the scanned bar code symbol is within...
5311001 Analog waveform decoder utilizing histogram of edge sizes  
A method for decoding information contained in an analog waveform representative of a bar code symbol comprising the steps of identifying a decodable portion of an analog waveform; processing said...
5298731 Method for printing and reading for orthogonal bar code patterns  
A data processing system, and method combine two alphanumeric data streams into a single bar code representation. Storing a first conversion table converts a first sequence of alphanumeric...
5270524 Automatic discriminating and decoding apparatus  
An automatic discriminating and decoding apparatus wherein digital data of a plurality of different systems can be decoded rapidly in a similar period of time. The automatic discriminating and...
5262626 Decoding bar codes from multiple scans using element replacement  
A method for reading bar code symbols which enables legitimate characters recognized by the code in use to be derived from a plurality of scans corresponding to illegitimate characters not...
5262625 Multiple bar code decoding system and method  
There are disclosed a system and method for decoding data read from a plurality of different types of bar code labels which includes circuit means for detecting the occurrence of two equal...
5227616 Barcode information recognizing and processing method  
A barcode information recognizing and processing method enabling a high speed scanning to be obtained and no error in reading the barcode information to occur. The method comprises storing to an...
5216231 Self-scanning code reading device  
A code reading device, which converts a bar code displayed on a medium into electric signals by means of a photo-electric converter and outputs them after having decoded them into data, which can...
5196685 Bar code reader  
The present invention relates to a bar code reader for reading bar codes and converting them into resepective alphanumeric code signals. The bar code reader includes a scanner for scanning bar...
5189289 Distinguishing bar code types by comparing bar block sizes  
A bar code reading apparatus includes a bar code reader for generating, in a single operation, plural pieces of bar block data corresponding to a bar code having a number of digits which is a...
5166500 Barcode reader decoder system  
Together with the Delta Distance Method, barcode data can be correctly read by converting to a digital signal an optical signal scattered from a barcode. Two types of toggle signals are generated...
5157248 Laser diode scanner with minimized power consumption, minimized dead zone, and increased safety  
A laser diode in a scanner is deactuated during part of each scan to conserve power and to increase the working lifetime of the diode and of a battery for powering the scanner. The dead zone in...
5149950 Hand-held laser scanning head having detachable handle portion  
A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for...
5144118 Bar code scanning system with multiple decoding microprocessors  
A system for scanning bar code labels and for providing data related thereto includes scanning means for optically scanning bar code labels and providing an electrical, binary scan signal in...
5142130 Bar code reading system and bar code reading apparatus with start margin detection circuitry  
A bar code reading system produces a binary signal from an analog signal containing a bar code signal, and demodulates the binary signal into numerals. The bar code reading system includes an...
5140144 Scan board module for laser scanners  
A scan board module includes a printed circuit board on which optical and scanning components are mounted in an optically-aligned relationship. The module is mountable in hand-held heads and...
5128527 Apparatus for reading a bar code  
A second bar code such as an add-on code which comprises only a character bar and is added to the side of the first bar code such as UPC, EAN and JAN which has a center bar and guard bar can be...
5083816 Machine and human readable label  
Disclosed is a human and machine readable label which is divided into three areas. The top portion of the label, which is typically half the length of the label, is divided into two columns. One of...
5059776 Bar code field and bar code reader  
An article of manufacture contains a substrate which contains a bar code field containing bar elements and background elements. The bar code elements have embossed, optically-reactive, microscopic...
5036182 Bar code reading and decoding apparatus  
A bar code reading apparatus for detecting the space between characters (the character space) by counting the number, which is a fixed number in the bar code, of edges, or transition points, of the...
4914280 Optical wand interface to fixed scanner  
An optical wand interface for coupling electrical output signals representative of a bar code scanned by an optical wand to a fixed bar code scanner with no electrical connection for the signals...
4896026 Laser diode scanner with improved shock mounting  
Optical alignment between components in a head of a laser scanner is maintained in the event of external shock. Optical and scanning component assemblies are shock-mounted near their respective...
4889367 Multi-readable information system  
A multi-readable information system includes a substrate material and one type of printed information that is readable by a first entity, such as information in machine readable bar code that is...
4879456 Method of decoding a binary scan signal  
A method of decoding a binary scan signal consisting of a bit sequence produced by an electro-optical scanning device as the device scans bar code symbols on a label is disclosed. The bits in the...
4856820 Coding system  
A machine-readable, human-readable coding system comprising a one piece, pre-printed label having at least two identical messages coded on the label. The label has two columns, one column, (2)...
4855581 Decoding of barcodes by preprocessing scan data  
Scanned barcodes represented by an electrical signal are preprocessed in a PLA and delivered to a microprocessor in a form that permits efficient final processing of the data. High speed edge...
RE32837 Coding systems for elements of machine tools, particularly of the numerically controlled type  
A coding system for elements of machine tools, particularly of the numerically controlled type, consisting of a "bar" code (14) applied to the element (10) to be coded, and read by a reading head...
4766297 Dual mode stationary and portable scanning system  
A scanning system (10) for reading bar code symbols including a portable hand-held scanning device (12) is provided. The portable hand-held scanning device (12) generates electrical signals...
4743773 Bar code scanner with diffusion filter and plural linear light source arrays  
The present invention provides a bar code scanner applicable for use to scan various bar codes of different standards and sizes. Any malfunction due to nonuniform illumination of the bar code or...
4736096 Data collection system using a bar code reader  
A data collection system, for gathering data from remotely located machines such as automatic vending machines, includes a data delivery section in each of the machines adapted for converting the...
4731525 Modular microprocessor-based system for printing and reading school attendance recordkeeping codes on forms  
A modular microprocessor-based code printing and reading system, adapted to print a personal coded identifier and other codes relating to categories of school-attendance recordkeeping on a form,...
4728784 Apparatus and method of encoding and decoding barcodes  
A method and system for reading encoded information from conventional bar codes and from hand-encoded barcodes is provided. The method and system include processing which eliminates false spaces...
4717818 Bar code label identification circuit  
A method for forming UPC or EAN bar code labels from scans of half labels or less than half labels requires that captured data be examined and classified as being either a first type of data...
4607156 Shock-resistant support structure for use in portable laser scanning heads  
A shock-resistant support structure for use in a laser scanning head in a laser scanning system for reading bar code symbols readily removably supportably mounts and readily positions a laser tube...
4602152 Bar code information source and method for decoding same  
There is disclosed a method and apparatus for decoding coded information such as may be provided by a printed bar code. The coded information is segmented into a plurality of words, each having...
4593186 Portable laser scanning system and scanning methods  
An entirely field-portable laser scanning system for reading boar code symbols includes a light-weight and small-sized laser scanning head. The laser source, power supply component, optics,...
4567361 Reticle bar code and method and apparatus for reading same  
In the reticle bar code scheme disclosed herein, the peculiar characteristics and requirements of a microlithographic reticle are utilized in a bar code scheme which provides multiple levels of...
4533825 Bar code recognition apparatus  
A bar code recognition apparatus comprises a manual scanner for reading each code bar, a comparison circuit for comparing a width value detection signal to a reference value to produce a width...
4533823 Coding systems for elements of machine tools, particularly of the numerically controlled type  
A coding system for elements of machine tools, particularly of the numerically controlled type, consisting of a "bar" code (14) applied to the element (10) to be coded, and read by a reading head...
4421978 Decoding method for multicharacter labels  
In decoding a UPC-type label, a partial decode and majority vote technique is employed to select final values for ambiguous characters (i.e., 1-7, 2-8) appearing in the label. During the partial...
4414468 Systematic error correction in bar code scanner  
A technique for compensating for systematic errors in printing or reading bar codes is disclosed. Label decoding always begins with a center character and proceeds one character at a time toward a...
4408344 OCR and Bar code reader using multi port matrix array  
A common scanning unit is utilized in an optical character reader which reads both alphanumeric and bar code characters. An N column by M row area photosensor detects both the alphanumeric and bar...
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...
Matches 101 - 150 out of 174 < 1 2 3 4 >