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Class 377/53 - With photoelectric sensor


Subclass of Class 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
Definition: Subject matter including means for sensing electromagnetic
No. of patents: 140
Last issue date: 06/10/2008


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NumberTitleIssue Date
7386237Wireless object counter
A battery powered transmitter circuit has a LED of a continuously cycling microcomputer transmit a beam of a predetermined number of infrared pulses at predetermined time periods to a sensor of a battery powered receiver circuit. Only a clock circuit of each circuit...
06/10/2008
7259593Unit circuit, method of controlling unit circuit, electronic device, and electronic apparatus
A unit circuit includes: a capacitive element having a first electrode, a second electrode, and a dielectric layer interposed between the first and second electrodes; a transistor having a gate electrode connected to the first electrode; a first switching element th...
08/21/2007
7250788Shift register, gate driving circuit and display panel having the same, and method thereof
A shift register includes a plurality of stages each generating an output signal in sequence and including a buffering section, a driving section, a first charging section, and a charging control section. The buffering section receives one of a scan start signal and...
07/31/2007
7240250Head degradation characterization for a data storage device
A method and apparatus for characterizing whether a head of a data storage device exhibits excessive performance degradation. The device includes a data transducing head adjacent a recording medium, and read channel circuitry with a variable gain amplifier (VGA) and...
07/03/2007
7206514Wireless object counter
A battery powered transmitter circuit has a LED of a continuously cycling microcomputer transmit a beam of a predetermined number of infrared pulses at predetermined time periods to a sensor of a battery powered receiver circuit. Only a clock circuit of each circuit...
04/17/2007
7173233Counter
A lite-counting apparatus counts lites in a longitudinal array. During a traversal by the apparatus of a peripheral portion of the array, a beam of radiation is passed from at least one source to at least one detector. Based upon changes in the relative path taken b...
02/06/2007
6947077Fast and accurate adjustment of gain and exposure time for image sensors
A proportional counting circuit generates count values for use in variably adjusting gain and exposure time of an image sensor array. The count values are adjusted in proportion to the current count value. This technique allows for fast and accurate adjustment of ga...
09/20/2005
6931091Gray code counter
A gray code is produced from a minimum of gate logic by making available and monitoring master outputs of master-slave latch pairs, where the latch pairs are arranged to form a cascading chain of toggle flip-flop stages. The least significant bit through one less th...
08/16/2005
6904115Current register unit and circuit and image display device using the current register unit
A current register unit. A first transistor of a first type, second to sixth transistors of a second type, and first and second capacitors are provided, and an image current signal is stored in the current register unit when a control signal is at a first logic leve...
06/07/2005
6873365Timing generator of image input device
Any complicates pulse waveform required depending on the type of CCD, can be generated with a simple circuit configuration. Specifically, any complicated pulse is obtainable by inputting an unlimited number of toggle timings, with no limitation imposed on the number...
03/29/2005
6836527Method and apparatus for detecting and counting articles
An improved method for counting irregular or unsymmetrical shaped articles that allows greater precision and provides enhanced features over current counting devices and methods. The method improves upon current devices and methods by providing a more precise volume...
12/28/2004
6091792Corrugated sheet counter
A device for counting the number of corrugated articles in a stack of corrugated articles includes a light source for illuminating a multi-article containing surface of the stack of corrugated articles. An electro-optical image capturing camera captures a...
07/18/2000
5770389Apparatus and method for determining the quanity of an analyte in a biological sample by means of transmission photometry
A device and method for quantitative determination of an analyte in a biological sample utilizes a non-transparent support medium for retaining a chromatogenic reaction product with the medium being exposed to a source of light for transmitting therethrou...
06/23/1998
5614709Method for accurately counting conveyed workpieces regardless of variations in conveyor speed
A method for counting conveyed workpieces, such as on a variable speed conveyor belt, includes sensing interruptions via an object sensor such as an optical sensor with a light beam, and with a computer, applying a mathematical comparison between duration...
03/25/1997
5524129Portable counter and data storage system
A compact counting and data storage system includes control circuitry coupled with a detector and input selector to enable monitoring of traffic within a selected area for a selected count interval. The system also includes a readily removable data storag...
06/04/1996
5457312Method and apparatus for counting flat sheets of specularly reflective material
A method and apparatus for counting flat sheets of specularly reflective material juxtaposed in side by side relationship including a source of a parallel, collimated, beam of light adapted for movement to shine on a finite point across sides of a plurali...
10/10/1995
5454016Method and apparatus for detecting and counting articles
A method and apparatus for counting irregularly-shaped articles. A pair of light sources are provided at a sensing plane through which articles to be counted are adapted to pass. Each of the light sources emits a light beam that is at an angle to the othe...
09/26/1995
5313508Method of and apparatus for detecting and counting articles
A method and apparatus for counting irregularly-shaped articles. A pair of light sources are provided at a sensing plane through which articles to be counted pass. Each of the light sources emits a light beam that is at an angle to the other light beam, s...
05/17/1994
5305390Person and object recognition system
A system for automatically recognizing persons or objects as they move past a selected location and for classifying the persons or objects in accordance with selected criteria. The system includes emitters for emitting beams toward a person or object movi...
04/19/1994
5255301Apparatus for counting the number of passing persons by stature
An apparatus for counting the number of passing persons by stature, wherein a projector for radiating light toward the head of a passing person, a light receiving lens for receiving light reflected from the person's head, and a light position detector are...
10/19/1993
5221837Non-contact envelope counter using distance measurement
A counter for counting objects in a stack employs a beam moved by a scan carriage along an edge of the stack. A detector on the carriage determines the position of the portion of the beam reflected by the stack and determines, by optical triangulation tec...
06/22/1993
5138638System for determining the number of shoppers in a retail store and for processing that information to produce data for store management
A system for automatically counting people as they move past a selected location, and for measuring their heights. The system includes emitters for emitting beams toward persons moving past a selected location to generate reflected beams from the person, ...
08/11/1992
5090031Can counting machine
A can counting machine having an inclined housing into which a collection of beverage cans may be dumped. A rotor in the housing defines elongate openings spaced about its periphery for the singular reception and transport of cans upwardly to a discharge ...
02/18/1992
5033065Apparatus for counting conveyed objects
The invention relates to an apparatus for counting objects, which includes a light emitting system intended to form an emission zone, a light receiving system forming a plurality of substantially aligned reception points, a passage between the emission zo...
07/16/1991
5032715Apparatus and method for counting containerized items
The invention relates to apparatus for accurately counting the number of containerized items by movement of a unitary emitting and sensor of a beam of light over rows and columns of the planar surface platform supporting the containerized items....
07/16/1991
5003563Anti-dither container counter
A first sensor at a first location along a conveyor provides a first signal indicating whether or not a container is present at the first location while a second sensor similarly provides a second signal indicating whether or not a container is present at...
03/26/1991
4972071Method and apparatus for counting overlapping obects
Apparatus and a method for counting primarily printed copy being advanced along a path in an overlapping manner is arranged to direct two beams of infra-red radiation on to a predetermined region in the path of advancement of the copy. The two beams are d...
11/20/1990
4938592Beam forming and sensing apparatus for aerodynamic particle sizing system
Apparatus, intended primarily for use in an aerodynamic particle sizing system, for generating a pair of closely-spaced, substantially parallel light beams and for determining particle sizes by measuring the times of flight of particles between the two li...
07/03/1990
4912317Pitch match detecting and counting system with tilted optical axis
An apparatus for automatically counting stacked sheet-like materials having sheet-to-sheet brightness gradients alternating between positive and negative while simultaneously eliminating problems encountered when the sheet edge reflectance characteristics...
03/27/1990
4877954Light counting system for convex articles
An apparatus for counting hangers having a convex surface includes a housing having a central light source carried by the housing for projecting a light beam on the convex surface. A pair of spaced light detectors is positioned on the housing substantiall...
10/31/1989
4859993Wafer accounting and processing system
According to the invention, each detecting element pair of a wafer detector is constituted by light-emitting and light-receiving elements of transmission-type and is arranged at a position corresponding to a fitting edge portion of one of a plurality of w...
08/22/1989
4849999Laundry transfer and counting apparatus
The invention includes an apparatus for and method of moving textile articles such as pieces of laundry or the like comprising an enclosed passageway having two opposing open ends, and at least one bend between the two open ends; a vacuum source coupled w...
07/18/1989
4847878Method and apparatus for determining mirror position in a fourier-transform infrared spectrometer
The position of the moving mirror (20) in a Fourier-transform infrared spectrometer is monitored with a circuit which has an incremental counter formed of a plurality of cascaded up/down counters (82, 84, and 86) that count the pulses received by a laser ...
07/11/1989
4847485Arrangement for determining the number of persons and a direction within a space to be monitored or a pass-through
In an installation for determining the number of persons inside a monitored room or so-called pass-through, a sensor field is generated by IR-sensors. An evaluation unit uses as discriminating criterion the detection of moving bodies and generates for an ...
07/11/1989
4835403Clocked optical sensing apparatus
A document sensor comprises a source of infrared light directed toward a document and a photocell for reacting to the light as it is reflected from the document. A clock drives the light source to send cyclically recurring light pulses toward the document...
05/30/1989
4833697Writing instrument for electronic counting and gravity switch reset
A ballpoint pen of conventional size and shape has a movable ball point that is pressed upwardly in the direction of the housing of the pen when a mark is made. Means is provided for normally biasing the ballpoint outwardly of the housing. However, when t...
05/23/1989
4831638Garment hanger and counting system
A garment hanger and counting system has cutouts in the hook portion so a counter can count each hanger even when they are side by side. The counter is not affected by garments supported on the hanger. The hanger has cutouts on an open end side of the hoo...
05/16/1989
4831641Method and apparatus for analyzing a visible object
The visually observable information is expressed in quantitive form according to an arrangement wherein there is firstly detected the distribution, size, shape and similar characteristics of objects appearing essentially in one level or plane of the sampl...
05/16/1989
4811368Meter for remote inspection
A meter for remote inspection having a wheel assembly which enables a counting number indicating the amount of consumption of a measuring object, such as electric energy, or city water or the like to be remotely inspected in a remote inspection center equ...
03/07/1989
4772800Method of detecting a broken yarn in a row of line up yarns and apparatus therefor
A method and apparatus for detecting a broken line up yarn, wherein a fine beam is adapted to travel widthwise across a row of line up yarns while it is radiated toward the yarns to cause flickerings which are photoelectrically converted to instantly coun...
09/20/1988
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