Matches 1 - 50 out of 231 1 2 3 4 5 >
Match Document Document Title
7345747 Arrangement and method for checking optical diffraction structures on documents  
The invention is directed to an arrangement and a method for checking optical diffraction structures (e.g., kinegrams) on documents. The object of the invention, to find a novel possibility for...
6963074 Omni-directional optical code reader using scheimpflug optics  
An optical code reader for reading optical codes in any orientation with a preferred depth of field (DOF), the optical code reader including imaging sensor arrays arranged at angles to one another...
6339482 Control method for positioning multiple lens of scanner  
The present invention provides a control method for moving and positioning multiple lens of a scanner to their accurate position. The method mainly uses a linear reference image, such as a...
6236038 Optical barrier formed of a set of optical emitter and receiver elements  
An optical barrier is provided by an optical barrier unit that is made up of one or more emitter element modules and one or more receiver element modules. The emitter modules present are controlled...
5903339 Light transmissive device for optical testing of transported bills  
This optical scanner for testing the validity of a bill transported through a bill validator includes lower and upper members spaced to allow a bill to pass therebetween, at least one member...
5665974 Self-monitoring optical encoder for wavelength division multiplexing optical sensors  
A self-monitored optical sensor having a code plate having a plurality of tracks disposed thereon. Each of the tracks comprises a pattern of reflective and absorptive segments that form a code that...
5391889 Optical character reading apparatus which can reduce reading errors as regards a character image if the character image is in contact with an unnecessary image.  
In an optical character reading apparatus for optically reading a character image to produce a character signal representative of the character image, a collation and judgement circuit (22)...
5303034 Robotics targeting system  
A robotic arm calibration system is described which comprises a video line scan camera vision system used in conjunction with a plurality of novel "N"-shaped targets in an automated tape storage...
5081364 Multifocal scanning system  
A bar code scanning system having a focusing lens for focusing scanning light beams in a first focal plane includes a slide member supporting a transparent substrate which enables the focusing lens...
4957348 Optical transceiver with multiple communication modes  
Apparatus that enables an optical transceiver (14) to communicate data as a bar code reader or by way of modulated light. A lens assembly (22) adjusts the focal distance of the optical transceiver...
4870262 Signal processing apparatus and binary encoder circuit for the same  
Disclosed is a signal processing apparatus comprising a sensor whose impedance varies according to changes in quantity sensed thereby, a power source applying a voltage to the sensor, a...
4845770 Method and apparatus for processing embossed card  
A method and apparatus for processing an embossed card on which embossed characters are formed. The apparatus performing the method by optically reading embossed characters and producing...
4811002 Relative positional relation detecting system  
A relative positional relation detecting system has a detector for the recognition of and inspection by use of a predetermined identification mark provided on each of at least two members to be put...
4719449 Transport apparatus for transporting part-carrying members to various work stations and for reading data encoded on said part-carrying member  
Each movable member (1) has a disk (6) which is mounted free to rotate about an axis (5) and which includes an annular area (7) of radial stripes (8) together with three concentric coding and read...
4682016 Pen-type bar code reader  
A pen-type bar code reader uses a reflector formed on a concave lens surface of a convex lens system with respect to a bar code detector, except a region for transmitting a light flux. The convex...
4639606 Bar code scanner laser radiation exposure limit control system  
In order to meet the requirements for laser radiation safety, namely laser output which can enter the naked human eye indefinitely and cause no discernible damage (Class I emission limit) in a code...
4603976 Optical mark recognition apparatus  
In optical mark recognition apparatus the light transmitter has two light sources 11, 12 which can be selectively switched on and which transmit light beams of different spectral compositions. A...
4465926 Optical reading device for the manual optical scanning and for evaluating optically readable character codes  
A hand-held bar-code reader (bar-code wand) which forms part of an optical reading device and is capable of being led by hand over the bar code, comprises a storage circuit for storing the data...
4335301 Wave shaping circuit for electro-optical code readers  
An electrical output signal from an electro-optical code reader is amplified (U1) to develop a first signal which is applied to a positive peak detector (U2D1, C2) and a negative peak detector (U3,...
4292621 Character reader  
A system for reading characters arranged in a line on a document. The line of characters is scanned in such a manner as simultaneously to generate a plurality of parallel data signals.
4282425 Instant portable bar code reader  
A portable instant bar code reader including a hand-held reader unit having a flash type illuminator. The flash type illuminator is triggered to illuminate a bar code label positioned adjacent to a...
4230265 Adaptive threshold optical reader  
An adaptive threshold optical reader for detecting optically encoded information when positioned within an optical path, including a light source for producing light energy along the optical path,...
4199677 Record decoding system and method utilizing logarithmic techniques  
A bar code reader employs a microprocessor for decoding data contained in a bar code record and a logarithmic converter ahead of the microprocessor for providing to the microprocessor signals...
4196845 Bar-coded data input terminals  
Signal processing circuitry for a bar-coded data input terminal having a bar-code reading device, such as light pen, for reading bar-coded identity data, from bar-coded identity labels, attached to...
4184632 Data card and data card reader combination  
A data card and data card reader combination including a data card incorporating two data tracks consisting of a plurality of perforations spatially arranged to represent encoded data. A card...
4172554 Apparatus for storing and reading data  
Apparatus for storing and reading data in association with a card which has a timing track comprising at least three different kinds of optically-readable timing markings arranged in the timing...
4162408 Optical mark sense detector  
Apparatus for detecting marks or other objects by comparing a decrease in reflected light while the mark or object is moving across optics, to the light reflected before the mark or object was...
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...
4160901 Coincidence testing method for enhancing the reliability of output data from a label reader  
A coincidence testing method for enhancing the reliability of output data from a label reader adapted to read a bar code consisting of a plurality of bars. Each bar in the bar code is scanned at a...
4158435 Method and apparatus for reading label bar codes  
A method and apparatus for reading label bar codes in which a photoelectric signal representative of an optically scanned bar code label is differentiated. The positive and negative peaks of the...
4150783 Method for reading information from punched carrier and device for effecting same  
The method for reading information from a punched carrier, consists of modulating a radiation flux emitted by a radiation source by information holes of the punched carrier and then additionally...
4143267 Digital distance measuring instrument  
An apparatus for making distance measurements with a high degree of accuracy and a means for interpreting and displaying the results on a digital readout. A binary encoded scale which exhibits a...
4124290 System for interfacing an automatic processing machine with a stack of documents which it is processing  
A stack of documents are transported one-at-a-time, under control of an automatic machine. A machine readable card is inserted between preselected documents in the stack. When the transport detects...
4101784 Color mark detector  
A detector for marks having a color which contrasts with the mark background employs a solid state light source projecting a light beam having a plurality of wave length components corresponding to...
4095887 Detector circuit for electrophotographic copier  
In electrophotographic copying apparatus utilizing a photoconductive belt having markings regularly spaced apart on its back side for control of the copying operations by moving past a detector...
4074115 Method and apparatus to read-in bar-coded information  
A card on which at least a group of bar-coded information are printed is carried by a motor-driven carrier. The bar-coded information is sensed and converted into a group of parallel digital...
4074114 Bar code and method and apparatus for interpreting the same  
A bar code is constructed from individual characters that are laid out along a first straight line. Each character is formed by a series of bars and spaces that are parallel to the first straight...
4070584 Object-identification system with sequentially activated photocell array  
An object-identifying system is described comprising at least one device for remotely identifying a plurality of objects bearing each a characteristic code in the form of a badge which has...
4066910 Transmissivity-coded data card systems  
A photoelectric data card system is disclosed in which the cards are transmissivity-coded, so that light of a particular wave length and intensity is transmitted in varying degrees of different...
4061900 Indicia validation system  
System and method for validating UPC (Universal Product Code) or TRI-BAR indicia on packaging or the like and which includes means for finding the start and end codes of the indicia, means for...
4059225 Labels and label readers  
A label incorporating a plurality of concentric rings having two different light reflective characteristics provides a binary coded label on which any desired information can be displayed, and...
4055747 Apparatus and method for the synchronous reading of data from a punched card  
An apparatus and method for reading punched cards having data columns parallel to one edge of the card with each data column containing a coded pattern of punches wherein the card is moved past an...
4035615 System for accepting wide ranges of universal product code system  
The invention pertains to an optical scanning technique which is capable of reading and accepting a wide range of out-of-tolerance symbols. The technique provides that if a successful scan occurs,...
4013894 Secure property document and system  
A secure property document and system are provided which prevents the use of fraudulent credit cards and other documents. The documents each include optical and magnetic data sets. Each data set...
3993193 Document sorting system  
A document sorting system employing a plurality of elongated flexible strips which form document transport channels therebetween and which terminate at a plurality of sorting areas. A magnetic...
3991299 Bar code scanner  
A bar code scanner having light sensitive means for detecting black and white regions of a bar code and having circuit means for translating the light pulses into digital signals. The scanner...
3988573 Three line scanner for bar code symbols  
An optical scanner is disclosed for reading of optical bar codes of the type used for point-of-sale data acquisition. The optical scanner provides a 3-line scan pattern adapted for omnidirectional...
3985999 Code readout apparatus  
A readout apparatus for indicating data recorded in the form of marks bearing different widths and intervening blanks also having different widths which comprises a photosensitive device for...
3978319 Universal self-clocking code reading method and apparatus  
A general method for reading or decoding the self-clocking encoded data content of digital data bits, which may be recorded on magnetic or optical media or received on a communication channel in an...
3975261 Sequential event memory circuit for process and quality control  
An electrical system is disclosed, in which a conventional detector device produces a signal upon its sensing a characteristic or property of a conveyed object at a location upstream, on a conveyor...
Matches 1 - 50 out of 231 1 2 3 4 5 >