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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 5107845 | Method and device for monitoring human respiration A method for monitoring respiration by illuminating the body of the subject with a luminous flux, where a lens is used to form on a set of photosensitive elements, an image of at least one region of the space within which a person under surveillance is ca... | 04/28/1992 |
| 5099324 | Apparatus for extracting/combining change region in image corresponding to moving object An area to be monitored is picked up by a TV camera, and data of the picked-up image is converted into digital data in units of frames and stored in frame memories. The image data stored in the frame memories are read out, and a change region is extracted... | 03/24/1992 |
| 5083201 | Video image motion data generator for computer graphics A motion information generating apparatus arranged such that a desired portion of a picture displayed on a video monitor receiver is designed and image data corresponding to the desired portion of the designated picture is sampled in a one-dimensional fas... | 01/21/1992 |
| 5034811 | Video trigger in a solid state motion analysis system A solid state motion analysis system stores images of an event at a fast frame rate and plays back the images at a slower frame rate to facilitate analysis of the event. The motion analysis system includes a solid state imager which is selectively operabl... | 07/23/1991 |
| 5034817 | Reconfigurable video line digitizer and method for storing predetermined lines of a composite video signal A video line digitizer for digitizing predetermined lines of successive fes of a composite video signal includes a video line digitizer for converting the analog component of the video signal into a series of digital data representations. The composite v... | 07/23/1991 |
| 5008745 | Clock synchronized digital TV motion detector A digital motion verification circuit for a television system. The circuit synchronizes an actual and a stored signal from an edge motion indicator with the system clock, so that the edge signals are precisely timed and do not have errors from overlapping... | 04/16/1991 |
| 5001348 | Method and apparatus for recognizing the start and motion of objects A recognition system for alarming and early warning against starting and approaching flying objects with an active engine evaluates the "plume signature" of such an engine. Image signal generating electro-optical sensors, which operate in a preselected sp... | 03/19/1991 |
| 4963961 | Vertical motion detector A vertical motion detector for a TV system motion detector. The circuit operates by delaying each motion indicator signal by multiple units of the time required for one full horizontal line sweep. If vertical motion occurs, the delayed indicator will outp... | 10/16/1990 |
| 4951147 | Digital image acquisition system A method and device utilizing a dynamic random access memory (RAM) image sensor which has a transparent window through which a lens can focus an image on an array of radiation sensitive cells of the dynamic RAM. The cells of the dynamic RAM are set to a f... | 08/21/1990 |
| 4931868 | Method and apparatus for detecting innovations in a scene A method and apparatus for detecting innovations in a scene in an image of the type having a large array of pixels. The method comprises the step of generating a multitude of parallel signals representing the amount of light incident on a group of adjacen... | 06/05/1990 |
| 4908704 | Method and apparatus for obtaining an object image and distance data of a moving object An apparatus for monitoring a moving object comprises an image memory for storing a reference monitor image of a designated monitor region, a distance map memory for storing a distance map, the monitor image of the designated monitor region and the distan... | 03/13/1990 |
| 4894716 | T.V. motion detector with false alarm immunity A motion detector which compares the video signal from a camera to a camera signal from an earlier scene and produces an alarm signal if an edge of any object has changed its position, but protects against false signals. A phase detector is used to sense ... | 01/16/1990 |
| 4872053 | Device to control the presence of information of images in video signals The invention relates to a device for controlling the presence of information concerning images in video signals applicable to a video receiver. The device includes a line detector (3) to detect a predetermined row line with respect to a first line of an ... | 10/03/1989 |
| 4839631 | Monitor control apparatus A monitor control apparatus for preventing crimes commited within or in the vicinity of a building in which movements of individuals are detected to determine the behavior thereof. Upon detection of suspicious behavior, predetermined functions are execute... | 06/13/1989 |
| 4789894 | Motion analyzer with interleaved image reproduction A motion analyzer in which full frames of video information from two video imagers are recorded in interleaved fashion on magnetic tape. The motion analyzer records at multiple frame rates in a block sequential format in which blocks of parallel lines of ... | 12/06/1988 |
| 4775853 | Device and installation for the instantaneous detection of one or more physical phenomena having a character of risk A device and installation are provided for the instantaneous and simultaneous detection, inside and outside, of radiations emitted in the infrared, visible and ultraviolet spectra by simultaneous physical phenomena having a character of risk, such as intr... | 10/04/1988 |
| 4772945 | Surveillance system A surveillance system having self-test functions having an image pick-up sensor, an image processing unit connected to the image pick-up sensor for detecting a scene change of video signals obtained from the image pick-up sensor, an alarm generator connec... | 09/20/1988 |
| 4736097 | Optical motion sensor An optical motion sensor comprises first and second light emitting diodes that emit complementary pulsed beams of infrared energy within a sensing region. A photodiode sums the energies to produce a proportional sensing signal. An amplifier AC coupled to ... | 04/05/1988 |
| 4660086 | Scanning apparatus and method An automatic scanning and control apparatus determines the location of a predetermined segment of an image field being scanned. The predetermined segment presents an image which is optically differentiatable from the surrounding area of the image field. T... | 04/21/1987 |
| 4641186 | Motion detector that extracts motion information from sidebands of a baseband television signal A motion detector for detecting motion in a picture contained in a television signal includes a filter that extracts a portion of the frequency spectrum of the television signal. The amplitude of the sidebands of the television signal in this portion of t... | 02/03/1987 |
| 4639774 | Moving target indication system A system comprising a scanning detector for rapidly scanning a field of view through appropriate optical means, and with a linear infrared detector array, there being electronic apparatus for converting the detector signals to digital signals and for stor... | 01/27/1987 |
| 4511918 | Scanning apparatus and method An automatic scanning and control apparatus determines the location of a predetermined segment of an image field being scanned. The predetermined segment presents an image which is optically differentiatable from the surrounding area of the image field. T... | 04/16/1985 |
| 4458266 | Video movement detector The system of detecting motion by means of a video detector which consists in directing at least one television camera (20) into the surveillance area, and reproducing the image from the said camera on a television (25) screen, characterized in that the t... | 07/03/1984 |
| 4410910 | Motion detecting method and apparatus To detect motion of an object, a repetitive video signal representative of the object at successive points in time is generated. At least a portion of successive repetitions of the video signal is integrated. The successive integrations are compared with ... | 10/18/1983 |
| 4408224 | Surveillance method and apparatus A place scenery is surveilled by a video camera. The image signal from the video camera is converted to data, the data is stored in a memory as a current data and then compared with previous data which was prepared and stored in another memory in a previo... | 10/04/1983 |
| 4364087 | Movement detector for television signals A movement detector for television signals measures the difference between maximum and minimum values of the movement components of a picture difference signal over a chosen interval. A television signal at an input (12) is delayed in a picture delay (2),... | 12/14/1982 |
| 4301471 | Moving target indicator system utilizing charge coupled device A time change or moving target indication system utilizing charge-coupled devices (CCD's) for signal processing in which successive integrated samples from individual detectors are loaded into adjacent CCD storage buckets and then clocked to an output dev... | 11/17/1981 |
| 4257063 | Video monitoring system and method A television system and method are disclosed for monitoring and indicating changes in a scene from which electromagnetic radiation, such as visible light, emanates. A television system including a television camera scans the scene in known raster fashion ... | 03/17/1981 |
| 4219845 | Sense and inject moving target indicator apparatus A moving target indicator apparatus utilizing charge injector device (CID) sensors to detect the presence or absence of a moving target. A signal from a possible target site in the sensor array is measured during a flow scan and is processed with the sign... | 08/26/1980 |
| 4198653 | Video alarm systems The invention concerns a video alarm system for discriminating a video signal for detecting a movement or change in a scene under supervision by a television camera, the television picture being sub-divided into a plurality of areas which are individually... | 04/15/1980 |
| 4161750 | Video alarm systems In a video alarm system with digital evaluation the analog video signal generated by a television camera is converted into a binary signal by comparison with a threshold-value signal in an amplitude discriminator, and the binary signal is then evaluated, ... | 07/17/1979 |
| 4160998 | Television-based alarm system The invention concerns an alarm system for detecting a movement or change in the field of view supervised by a television camera. A discriminator, for example an edge discriminator or an amplitude discriminator, produces a signal upon the occurrence of a ... | 07/10/1979 |
| 4091415 | Method and apparatus for detecting temporal changes in an object Temporal changes in an object are detected by focusing light from preselected spatial locations of the object on associated first and second regions of a light sensitive target at first and second times, respectively, and by comparing the light intensity ... | 05/23/1978 |
| 4081830 | Universal motion and intrusion detection system A motion and intrusion detection system utilizing video techniques samples fixed points during a video scan of the field of view of a camera and stores information concerning the fixed scanned points. During subsequent scans, information concerning the re... | 03/28/1978 |
| 3988533 | Video-type universal motion and intrusion detection system A motion and intrusion detection system utilizing video techniques samples fixed points during a video scan of the field of view of a camera and stores information concerning the fixed scanned points. During subsequent scans, information concerning the re... | 10/26/1976 |
| 3932703 | Image motion and change transducers and systems controlled thereby A selected area of an arbitrary image is scanned to derive analog video signals which are filtered and converted to binary signals which are compared with a signal representative of a reference image to produce a signal indicative of differences occurring... | 01/13/1976 |
