Matches 1 - 50 out of 224 1 2 3 4 5 >


Match Document Document Title
7417235 Particle detector for secondary ions and direct and or indirect secondary electrons  
A multi-purpose efficient charge particle detector that by switching bias voltages measures either secondary ions, or secondary electrons (SE) from a sample, or secondary electrons that originate...
6946634 Optical pickup device  
In an optical pickup device provided with an optical system for guiding and focusing three-beam laser light along a predetermined route onto a recording surface of an optical disk and guiding a...
5682039 Media position sensing system having a plurality of apertures in the media edge margin  
A media position sensing system for a plotter in which a media is driven along at least one edge thereof comprising a plurality of apertures in the media positioned within the width of the edge...
5352900 Ribbon tracking technique with low-ribbon detection  
Disclosed are Power Encoder means for imprinting MICR characters on checks, with optical check-sensing means disposed along a check-transport path, including optical skew-sensor means.
5294805 Method and apparatus for analyzing tracking error in magnetic tapes  
A method and apparatus for analyzing tracking errors in magnetic tape. The apparatus and method allow for distinguishing between those errors in track configuration due to rotational errors (i.e.,...
5272352 Retrieval system  
A film retrieval system comprises a light source for illuminating a film having marks applied thereon, a photo-detector for detecting light intensity transmitted from the illuminated film, a...
5245199 Mark detecting apparatus using active threshold comparison  
A mark detecting apparatus comprises an illuminator means for illuminating a film with marks having density different from the density of its periphery, a plurality of photosensors arranged in the...
5243196 Film image registration system with image filing and illumination control  
A film image registration system includes a film reader for optically reading a front surface of a film set therein to obtain a film image. A film illumination device emits light to illuminate the...
5229620 System for integrated tape hole detection by detecting an edge of the tape and/or a pattern on the tape  
A method and apparatus performs detection of an edge and detection of holes or other data patterns on a tape or other magnetic or optical medium. An array of photodetectors in an integrated...
5212388 Method for detecting tracking error in magnetic tapes with using an X-Y stage calibration means  
A method and apparatus for analyzing tracking errors in magnetic tape. The apparatus and method allow for distinguishing between those errors in track configuration due to rotational errors (i.e.,...
5178063 Method and apparatus for automatic numbering of forms on a rotary printing press  
Computer controlled numbering of consecutive business forms is provided for both computer controlled presses and in the form of a retrofit unit for conventional rotary presses. The retrofit unit...
5137347 Information retrieval apparatus  
An information retrieval apparatus used in a microfilm reader, a reader/printer, or the like includes a first illuminator for illuminating information and a mark recorded on an information...
5130555 Tape crease inspecting method and apparatus having a stripe shaped pattern reflection plate  
A projector and a reflection plate with stripe shaped patterns printed on it are used for projecting the reflection light of the stripe shaped pattern onto a tape. An inspection apparatus for...
5086231 Microfilm retrieval system for retrieving a designated image frame  
A microfilm retrieval system includes blip marks provided at transversely opposite side portions of selected image frames of an elongated microfilm, a device for detecting the blip marks, counters...
5015056 Photointerruptor for use in light-transmission type rotary encoder  
A photointerruptor for use in a light transmission type rotary encoder comprising a photointerruptor main body having a plurality pair of light emitting and light receiving optical fibers...
4971414 Optical information record/read apparatus  
An optical information record/read apparatus comprises a light source for emitting light, a converging optical system for converging the emitted light from the light source on the optical record...
4953933 Optical encoder reading device  
Disclosed is an optical sensor readhead (10) which includes a glass substrate (14) that contains buried ion diffused optical transmission channels (12) for supplying light to and receiving...
4947050 Sensor bracket for magnetic tape cartridge drive  
A U-shaped sensor bracket for use in a magnetic tape cartridge drive is provided with resilient retaining members for holding sensors used in detecting end and beginning of tape holes in a tape...
4939591 Contact-type image sensor  
A contact-type image sensor comprising a light source that illuminates the manuscript to be read; photodetectors that convert the light reflected by the manuscript into an electrical signal; a...
4906854 Processing method and apparatus for exposed and developed film with position sensing  
An exposed and developed filmstrip has a longitudinally extending row of image areas and a row of perforations along each longitudinal margin. The image areas and perforations have no fixed...
4897540 Apparatus for detecting the presence or absence of overlap at tape joints  
A joint inspection apparatus comprises a light irradiating device for irradiating light to a tape joint at which two tape edge portions are joined together, and a light receiving device for...
4870291 Splice inspection method and apparatus using light inclined at a prescribed angle  
A method for inspecting a tape splice for defects in which the splice region between two sheets is irradiated with a light beam, the tapes are longitudinally conveyed relative to the light beam, a...
4864149 Method of detecting frame edge  
A method of detecting a frame edge of a film by a first group of light-receiving element arrays and a second group of light-receiving element arrays, each of the groups being composed of at least...
4864122 Joint inspection apparatus for determining the size of a gap  
A joint inspection apparatus comprises a light irradiating device for irradiating light to a tape joint at which two tape edge portions are joined together, and a light receiving device for...
4855987 Optical device comprising a holder accommodating an optical system which compensates for thermal expansion/contraction  
An optical system is described, for example a radiation source unit (10) supplying a collimated radiation beam (RB), comprising a tubular holder (30) a radiation source (33) arranged in the holder...
4814589 Information transfer and use, particularly with respect to objects such as gambling chips  
Coding systems utilizing machine-readable coding are disclosed. The coding systems are extremely simple to use and preferred embodiments of the machine-readable coding require no external...
4743774 Method and apparatus for optical detection of information  
Method and apparatus for optically detecting information from a recording medium in which pits are formed by thermal energy of a light spot to record the information. A reproduction spot is...
4705958 Apparatus for reading an arbitrarily oriented image  
An image reading apparatus for reading an image of an original and converting it into an electrical signal, and particularly for reading the image by primary-scanning and secondary-scanning 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...
4691112 Apparatus for the detection of optical marks on a film support moved relative to the apparatus  
An apparatus for detecting optical marks on a film support moved relative to the apparatus includes a light source and light detector for detecting optical marks on the film support, the light...
4687321 Mark detection apparatus for a micro-roll film  
Disclosed is a mark detection apparatus for a microfilm having marks which are recorded adjacent to respective frames and are classified into a few groups with different sizes. The apparatus...
4687943 Optical motion picture film inspection system  
A motion picture film flaw detection system wherein a single inspection location is employed at which sound track side edge defects, sprocket hole side edge defects, thickness variations, and...
4673815 Method of automatically detecting the locations of the frame lines of a reversal film and apparatus for carrying out the method  
A method of automatically detecting the locations of the frame lines of a reversal film as it is supplied to a processing station, such as a cutting and mounting station, a notching station or the...
4665318 Recording medium mark detector  
A mark detecting apparatus for detecting marks provided on a recording medium has a photoelectric converting device for receiving a light from the base and marks on the recording medium, a first...
4652124 Film inspection system  
A motion picture film flaw detection system wherein a single inspection location is employed at which sound track side edge defects, sprocket hole side edge defects, thickness variations, and...
4652125 Film inspection system  
A motion picture film flaw detection system wherein a single inspection location is employed at which sound track side edge defects, sprocket hole side edge deflects, thickness variations, and...
4611907 Method of judging film frame position  
Disclosed is a film frame position judging method in which film densities are detected by a plurality of sensors disposed such as to be orthogonal to the direction in which a developed film is...
4612446 Web terminal detecting device  
A device for detecting the terminal of a web such as an ink ribbon which is accommodated in a cassette, in which a hollow winding core on which the web is wound is formed of a transparent...
4607950 Mark detection apparatus for a micro-roll film  
A mark detecting apparatus for a micro-roll film including one photoelectric element for detecting marks of different sizes provided on one edge portion of a micro-roll film for respective frames...
4570075 Optical end-of-tape detection device  
An optical end-of-tape detection device comprises a photodiode and a phototransistor. In order to distinguish the light emitted by the photodiode from the ambient light, the photodiode is operated...
4514641 Apparatus for retrieving information  
The present invention provides a retrieving apparatus for retrieving desired information contained in a film making use of retrieval marks recorded on the film. The retrieving apparatus is useful...
4475179 Optical disc write/read methods and apparatus with improved focus and tracking control  
Spot-focus of a write or read beam upon a flexible optical disc, which is rotated with its neutral plane highly stabilized in space, is maintained precisely by moving the write or read beam source...
4460977 Optical memory playback apparatus  
An optical memory playback apparatus is constructed so that a single longitudinal mode of laser beam emitted from a self-coupling semiconductor laser element is projected through an optical system...
4457008 Automatic retrieval apparatus  
An automatic retrieval apparatus for use with an information containing film in a roll form, arranged to control driving of the information containing film by reading document marks or blips...
4453823 Method of stopping a film  
The present invention relates to a method of stopping a film containing a plural number of frames having images recorded thereon. First and second detectors each having at least one photo-electric...
4401394 Universal end of ribbon sensing system  
An end-of-ribbon sensing system which is equally compatible with various arrangements of light emitters and light detectors as utilized in different models of serial impact printers, the sensing...
4342996 Two disc encoder system for monitoring height of liquid in storage tank  
An apparatus for determining the height of liquid in a storage tank comprising: an instrument shaft capable of being associated with the shaft of the tank level gage; a first disc rotatable in...
4297585 System for the detection of splicing defects in film  
A system is disclosed which will detect flaws in spliced connections between two adjacent strips of film that are connected together by a splice. The system can, in various embodiments, detect not...
4296332 Sprocket hole sensing detector for moving translucent paper sheets  
A light emitting source and a light sensing device are permanently fixed on one side of a moving object substantially separated one from the other. The light rays from the source are bent or...
4240066 Cylindrical encoder for use with fiber optics  
A fiber optic encoding device capable of long term reliable operation in hostile environments is disclosed. Various construction details which contribute to a compact device with high mechanical...

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