Matches 101 - 150 out of 184 < 1 2 3 4 >
Match Document Document Title
5175774 Semiconductor wafer marking for identification during processing  
A semiconductor wafer (50) is inscribed by a laser scribe system with a numeric wafer identifying number in binary dot-array encoded form to facilitate machine readability. A matrix (20) of...
5173596 Paper card reader/validator  
A card reader and validator for use in wagering terminals includes a housing with a paper path. A paper drive surface of a drive wheel projects into the paper path. A platen assembly includes a...
5168147 Binary image processing for decoding self-clocking glyph shape codes  
Binary image processing techniques are provided for decoding bitmap image space representations of self-clocking glyph shape codes of various types (e.g., codes presented as original or degraded...
5155718 Optical record medium reading apparatus having a de-focussed light beam projected on an optical record medium  
An apparatus for reading information out of an optical record medium including a semiconductor laser diode for emitting a laser beam, a collimator lens, a beam splitter, an objective lens,...
5153418 Multiple resolution machine readable symbols  
A multiple resolution optically encoded label is readable at two more optical resolutions, and is able to store two or more respective channels of optically encoded information. Low resolution...
5140139 Preparing mark/read documents with markable boxes and locating the boxes from the document scan data  
A "mark read" document is prepared with a pattern of boxes within which marks may selectively be entered, together with printed characters for instructions or other informational purposes. The...
5140645 Computer compatible character for reliable reading by photoreader  
A computer compatible master character consisting of a common dot and eight equally spaced arms extending from it is provided. Individual characters are made up of subsets of these eight arms. This...
5136574 Optical card and a recording/reproduction apparatus for the same  
An apparatus for recording and reproducing information using an optical card comprising a memory region in which one pit train for supplying a track servo signal and a synchronizing signal is...
5128525 Convolution filtering for decoding self-clocking glyph shape codes  
Weighted and unweighted convolution filtering processes are provided for decoding bitmap image space representations of self-clocking glyph shape codes and for tracking the number and locations of...
5128526 Identification code  
An identification code sheet for representing codes for merchandise, or the like and a method for reading the identification code sheet. The identification code sheet for identification of...
5128528 Matrix encoding devices and methods  
Matrices, devices and processes for identifying articles. The matrices employ a pattern of dots which may be decoded by an imager such as those use in CCD cameras. A reference marker, information...
5101096 Optical recording sheet and method and apparatus for reproducing the same  
An optical recording sheet includes a plurality of data columns consisting of optical recording dots arranged in a matrix shape and column markers corresponding to the data columns. The data...
5101447 Method and apparatus for optically reading pre-printed survey pages  
Apparatus is provided whereby a template for a pre-printed survey page is developed and captured as a computer data file, so that a number of pre-printed pages having the same form may be analysed...
5085528 Data card and serial printer using same  
A data card for a printer includes a plurality of data areas. Data readable by a sensor can be written in the data areas to control specifications or functions of a serial printer. A standard mark...
5073700 Mark sense detector with variable threshold  
A mark sense detector with a threshold detector having a weighted and variable threshold discriminates reflective variations on an illuminated surface such as a hand-marked lottery entry card...
5059775 Slip and method of and apparatus for automatic reading of the slip  
A slip, a method of automatic reading of the slip, and an apparatus used therefor comprising a slip with delineated thereon a control mark made up of line segments of different lengths sequentially...
5038023 System for storing and monitoring bar coded articles such as keys in a drawer  
A secure storage system for keys or similar articles has an locked storage module with a drawer. A horizontal drawer shelf holds a plurality of cards in numbered slots. Each card has a...
5008521 Reproducing apparatus for an optical recording medium  
A reproducing apparatus reproduces an information signal from a card type optical recording medium from which an information signal can be optically read out and on which an information signal is...
5004896 Optical document scanning and mark sensing  
A method for optically scanning a document having preprinted marking positions is disclosed. According to the invention, the document has a specified format including rows of preprinted marking...
4982075 Information recording medium with track group indicators  
An information recording medium comprises a plurality of record bands each having a plurality of information recording tracks arranged orthogonally to a direction of the track, and the record bands...
4957580 Method for making an optical data card  
A method for making optical data cards wherein a preformatted recording tape having a continuous pattern of servo tracks is adhered to a web of data card base material. The data cards are then cut...
4947383 Machine readable markers for cartesian information storage media  
An information storage medium in which information is stored as multiple machine readable data entries arranged in frames which are themselves arranged in plural, generally parallel channels. The...
4945214 Digital data apparatus with datastrip compression and expansion  
Digital data apparatus is programmable by means of digital data encoded on one or more datastrips contained on an application insert. In order to substantially increase the amount of digital data...
4937439 Method and system for creating and scanning a customized survey form  
A desktop survey system for creating and scanning a survey form to be completed by a survey respondent, the survey form being printed on a scannable form having a preprinted timing track that can...
4931628 Apparatus for reproducing optical card data without position indicators  
In an optical card reproducing apparatus in which an optical card such that data is recorded as a plurality of track trains on an optical recording medium is reproduced and the data is optically...
4924199 Optical card for data storage for use in a data recording and retrieving apparatus  
An optical card for storing a data signal as optically readable pits including a plurality of track units, each track unit being composed of a single control track having an array of square control...
4914623 Digital processing of sensor signals for reading binary storage media  
An apparatus and method for processing an electrical signal produced by one or more sensors in a device for reading binary storage media, whereby the signal represents a set of successive stored...
4877948 Combination bar code and mark-sense reader  
A combination reader capable of reading a document containing both bar coded and manually marked information. The read information is processed, displayed and stored.
4864111 Promissory note  
A numerical instrument comprising a first location array defining a plurality of digit location for entry of numerals to define a number amount and a second location array in the form of a grid...
4860275 Optical recording card and method of reading the same  
The invention relates to a scheme for correctly reading data pits with a reader even if an optical recording card is fed slantwise. If the optical recording card is slanted relative to a line...
4859841 Digital data apparatus including an application insert sensor  
Digital data apparatus includes a reader for reading digital data encoded on a datastrip on an application insert. Disclosed is a sensor for sensing whether or not an application insert is...
4857715 Overprint registration system for printing a customized survey form and scannable form therefor  
A scannable form for an optical mark scanning apparatus in the form of a generally rectangular sheet of paper or like material having a preprinted timing track along one edge and a plurality of...
4855579 System for guiding a user in orienting an application insert having a plurality of datastrips relative to a datastrip reader  
Digital data utilization apparatus includes a datastrip reader for reading digital data encoded on one or more datastrips on an application insert. Disclosed is a system for guiding a user in...
4853920 Information recording medium and reproducing method therefor  
An information reproducing medium comprises plural tracks for recording information arranged to form a band and such plural bands are arranged normal to the direction of the track arrangement. The...
4849771 Plotter pen presence and type identification system  
An improvement to graphics pen plotters including a pen gripping mechanism for gripping a cylindrical bodied pen in a generally vertical orientation for sensing the presence and type of a pen in...
4831243 Information memory apparatus for reading out information from a moving recording medium  
An information memory apparatus includes: an endless belt which is driven forward and in reverse by a motor and reciprocates a recording medium such as an optical card; an optical head for reading...
4822986 Method of detecting and reading postal bar codes  
A Bar Code Reader of a Video Processor Unit receives video data from a scanner and processes it to locate a bar code at the bottom of a document which represents a postal zip code. The scanner...
4794241 Scannable document velocity detector  
The present invention relates generally to the field of optical mark readers and mark scanning systems. More particularly, the present invention relates to a method and system for checking the...
4786792 Transmissively read quad density optical data system  
An optical data storage and retrieval system using a length of optical recording material in which data in the form of microscopic spots is disposed in cells forming a regularly spaced grid. While...
4779104 Pen plotter pen type identification system  
A pen type sensor for use in a graphics pen plotter wherein plotter pens are moved along a pre-established path between a pen holding area and a plotting area for reading a plurality of vertically...
4760247 Optical card reader utilizing area image processing  
An optical card reader for reading marks made on the face of a preprinted card utilizes a video camera and a memory device to capture and store an image of at least a portion of the card....
4754127 Method and apparatus for transforming digitally encoded data into printed data strips  
A data strip (2) of predetermined size is made (a) by determining the total nibbles of digital information to be encoded and the maximum number of integral nibbles per data line (14), using...
4745484 Method and apparatus for stepped imaging in reading data  
A method and apparatus for reading data in a data field on a data surface of a storage medium in which the data surface may be nonplanar and depthwise regions of the data field are brought...
4736109 Coded document and document reading system  
A coded document is provided for use in a document reading system having a plurality of markable areas defined thereon and a first and second coded pattern disposed in predetermined relation to the...
4698514 Method and an arrangement for the detection by photoelectric means of markings made on a travelling material web provided with printed decoration  
A method and an arrangement is disclosed for the detection by photoelectric means of markings made on a printed, decorated material web. The markings comprise two groups of stroke markings, the...
4695991 Reading information stored in multiple frame format  
Information stored in a medium as multiple machine readable record entries arranged in frames which are themselves arranged in one or more channels may be read by observing each frame in turn with...
4652730 Method and apparatus for skew compensation in an optical reader  
A method and apparatus for skew compensation in an optical reader is described. The method provides for calculating the amount of skew between the read scan line used to read the data and the...
4641358 Optical mark reader  
The reading of the presence or absence of a pencil or similar mark at various locations on a sheet of paper is accomplished by an optical Mark-Reader comprised of a completely solid state sensing...
4605846 Optically readable card carrying digital data, and an access control system using said card  
The card is particularly intended to give a card-holder access to a service such as pay-TV (broadcast or cable), but in principle could be adapted to any lock-and-key type of system, e.g. credit...
4496830 Ticket checking apparatus  
An optical scanner produces an image signal corresponding to a shape of a ticket scanned by the optical scanner. Signal components corresponding to a given range of the ticket is extracted from an...
Matches 101 - 150 out of 184 < 1 2 3 4 >