Matches 1 - 42 out of 42
Match Document Document Title
7580674 Intelligent interface for controlling an adaptive antenna array  
An antenna control interface is integrated with common integrated circuit components, such as radio transceiver or baseband modem signal processing control logic. The antenna control interface...
7245315 Distinguishing between fire and non-fire conditions using cameras  
Detecting fire and non-fire conditions includes receiving a plurality of frames of video information, determining an energy indicator for each of a subset of the plurality of frames, detecting a...
6643538 Directional intraoperative probe  
An introperative surgical probe incorporating both a fiber optic imaging system and multi-element beta/gamma radiation directional indicating system is described.
6121614 Pyroelectric-type IR receiving element and IR sensor using the same  
A pyroelectric-type IR receiving element comprises a pyroelectric substrate which is fixed to a supporting body at its support ends and at least one rectangular patch formed in the substrate. The...
5743006 Method for fabricating a focal plane array for thermal imaging system  
A hybrid thermal imaging system (20, 120) often includes a focal plane array (30, 130), a thermal isolation structure (50, 150) and an integrated circuit substrate (60, 160). The focal plane array...
5528035 Digital signal processing system for removing DC bias in the output of pyroelectric and similar detectors  
A digital signal processing system (100) removes DC bias in the output of a pyroelectric detector and similar types of detectors by adding together a first output signal which is inverted and a...
5306912 Optically addressed thermal imaging device  
A thermal imaging device includes detector pixels A, B, C provided by a pyroelectric layer 1 arranged between electrode structures 3 and 4. A photoconductive layer 7 is provided between the...
5109277 System for generating temperature images with corresponding absolute temperature values  
A temperature-imaging system for generating an absolute temperature value for a point of interest on a monitored surface is disclosed. The system includes a camera and a temperature analyzer. The...
4740840 Pyroelectric camera signal processing having interrelated multi-parameter pedestal signal level compensation  
A system and method are disclosed for pyroelectric camera signal processing, which processing includes multi-parameter automatic signal level adjustment to compensate for the effects of pedestal...
4694334 Pyroelectric camera signal processing having pedestal signal level compensation  
A system and method are disclosed for pyroelectric camera signal processing, which processing includes compensating for the effects of pedestal level variations. The pyroelectric videcon tube...
4686566 Automatic initiation of target crossover recovery in a pyroelectric camera  
A system and method are disclosed for initiating target crossover recovery in a pyroelectric camera by electronically detecting crossover and automatically initiating recovery in response thereto....
4539589 Image stabilized rotational modulator for pyroelectric imaging devices  
Infrared radiation onto a pyroelectric vidicon TV camera is converted to a stable visible image by recourse to a rotational modulator which rotates the pyroelectric vidicon target with respect to...
4481535 Signal processing system for chopper type pyroelectric camera  
A signal processing system is disclosed for a pyroelectric camera having a mechanical chopper in the optical path for causing information sensed by the camera to appear as dynamic information. The...
4437118 Pyroelectric vidicon with improved signal-to-noise ratio  
A pyroelectric vidicon has an improved signal-to-noise ratio by essentially eliminating pedestal noise and using signal gain to overcome preamplifier noise. Pedestal noise is substantially...
4393403 Rotating diaphragm for a dynamic pick-up device having a pyroelectric layer  
By rotating a diaphragm in front of a pickup device, for example a pyroelectric vidicon, eddy currents are generated in the diaphragm if the diaphragm is made of a metal. These eddy currents are...
4379232 Ferroelectric imaging system  
An improved ferroelectric imaging system comprises a chopper, lens system, ferroelectric detector matrix, switching matrix, temperature controlled heat sink, drive and read out electronics, video...
4366381 Electrothermographic apparatus for detection and pinpointing of malignancies in human bodies  
Apparatus for supplying signals to a vidicon which furnishes a color image of a selected portion of the human body, especially of the mamma, has an optical scanning system which transmits a thermal...
4348611 Ferroelectric or pyroelectric sensor utilizing a sodium nitrite layer  
A pyroelectric or ferroelectric sensing element consists of a substrate with a thin layer of sodium nitrite. Electrodes may be applied to both sides of the sodium nitrite layer, or, alternatively,...
4288817 Method and a device for eliminating fixed error disturbances in a pyroelectric vidicon  
A signal processing method for eliminating fixed error sources in the video signal of a pyroelectric vidicon comprising the step of adding the signal value at each point of the pyroelectric plate...
4227210 Radiation shutters  
A rotatable thermal shutter for use with a pyroelectric camera tube is provided with blades having opening and closing edges in the shape of a spiral. The use of a spiral shape allows the rotatable...
4225882 Method and a device for analyzing a pyroelectric target  
A method and a device for analyzing a pyroelectric target in an evacuated envelope. The target with two opposite faces has a first face disposed towards a zone of the envelope which is transparent...
4193302 Methods and apparatus for examination of surface temperature distribution  
The invention is concerned with monitoring the temperature distribution of a surface which may not be a good emitter of thermal radiation. In the invention a member which is of relatively low...
4191967 Infrared imaging device using a pyroelectric image tube  
An infrared imaging device enabling operation in the panning mode with a very high sensitivity and the facility of viewing a desired part of the observed field. A pyroelectric imaging tube is...
4177483 Process and arrangement for reconstituting the thermal flux absorbed by a pyroelectric target  
Process and arrangement for reconstituting the signal representing the thermal flux absorbed by a pyroelectric target, the arrangement being used in infrared camera tubes. It comprises means for...
4164753 Dual pyroelectric vidicon infrared camera  
Two pyroelectric vidicons are adapted to alternately receive infrared ene radiated from an object by means of a rotating half circle mirror and fixed mirror arrangement. The alternations of the...
4142206 Pyroelectric solid state imager  
An improved solid state pyroelectric imaging system having readout of the cture elements of the pyroelectric disc in a plurality of parallel readout channels. Each picture element of a given line...
4100574 Method for electrically reading a resistive target in a camera tube  
A method for electrically reading a target such as a pyroelectric one, in a camera tube. It consists in the repetition of a sequence of three phases: reading by an electron beam scanning process,...
4100573 Thermal imaging transducer and system  
A wedge of ferroelectric material is used as a thermal imaging transducer by plating a multiplicity of signal generating electrodes to the surface of the ferroelectric wedge. The wedge is...
4095257 Orbiter for pyroelectric focusing devices  
Infrared light from an object directed into a thermal imaging television camera by a lens is passed through an angularly mounted rotating plate to impart orbital motion to the image received upon...
4072863 Pyroelectric infrared detection system  
A pyroelectric infrared radiation detection system includes a high density solid state pyroelectric detector array for detecting infrared radiation impinging thereon and for producing signals...
4069502 Methods of operating pyroelectric camera tubes  
A method of operating a pyroelectric camera tube having a normally provided electron beam emitting cathode and control grid G 1 controlling the electron beam, and a gas in the interior space of...
4040087 Electronic motion compensation for the pyroelectric vidicon  
An image motion correction is provided for a pyroelectric vidicon which pides a standard television video output signal.
4031394 Camera device with resistive target  
In camera using resistive targets wherein a recording tube of which the target (100) made of a pyroelectric material in the example and read by a beam of electrons, permanently receives a flow of...
4021847 Compensation circuit for pyroelectric vidicon system  
A correction circuit for a pyroelectric vidicon system wherein the image is canned by an oscillating or rotating mirror is provided which operates only on the synchronization and blanking pulses so...
4004087 Panning pyroelectric vidicon system  
A pyroelectric vidicon system that converts a still infrared image into tmal and a consequent visible image that is free of flicker or image motion. The required changes of temperature patterns on...
3946232 Pyroelectric camera tubes  
A pyroelectric camera tube having a high resistivity target is operated by applying an increasing ramp voltage to the target so as to provide a pedestal potential which permits objects producing a...
3846820 MOSAIC FOR IR IMAGING USING PYROELECTRIC SENSORS IN A BIPOLAR TRANSISTOR ARRAY  
A monolithic integrated circuit for a bipolar transistor array of pyroelectric sensors to provide a spectral response to incident IR radiation. A matrix is provided by rows and columns of the...
3761615 TEMPERATURE IMAGE CAMERA WITH MEANS FOR MOVING THE IMAGE IN THE IMAGE PLANE  
The image of an object is focussed onto the pyro-electric target of a camera tube by a lens whose axis is continously rotated about the axis of the tube by rotating eccentric lens mounting...
3646267 CAMERA SYSTEM FOR PRODUCING A TEMPERATURE IMAGE  
Electron discharge camera tube apparatus for translating into picture signals a temperature image includes a camera tube having an electrode of pyroelectric material upon which the image is...
3444322 IMAGE PICKUP DEVICES  
3374392 Camera tube for infrared television having ferroelectric strip for receiving radiation  
3256435 Infrared image system using pyroelectric detectors  
Matches 1 - 42 out of 42