...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 5691780 | Phase error control for color wheel A motor control unit (15c) for synchronizing a color wheel (15) to an incoming video signal and for re-synchronizing the color wheel after a channel change. The motor control unit (15c) has an error control unit (31), which detects an out-of-phase conditi... | 11/25/1997 |
| 5666160 | Digital zooming system of high resolution and method therefor A digital zooming system determines subpixel image information by detecting a camera motion component from a dynamic image (pixel images from across more than one image frame), the motion component being generated in an interval less than the standard int... | 09/09/1997 |
| 5657082 | Imaging apparatus and method using interpolation processing An imaging apparatus capable of outputting video signals in a plurality of formats is disclosed. The imaging apparatus includes: color separating optical system for separating incident image light into light beams of primary colors; first, second and thir... | 08/12/1997 |
| 5650832 | Multimode color wheel for display device A color wheel assembly (15, 15a, 15b) for use in a display system (10) that uses a beam of source illumination to generate images with a display device. The color wheel (15) is moveable in and out of the path of the source beam so as to provide varying le... | 07/22/1997 |
| 5625412 | High-frame rate image acquisition and motion analysis system A high-frame rate image acquisition and motion analysis system comprising a first arrangement to obtain an image of an object; a second arrangement coupled to the first arrangement to slice the image into N analog segments, where N is equal to an integer ... | 04/29/1997 |
| 5621455 | Video modem for transmitting video data over ordinary telephone wires An apparatus and method is provided for modulating and transmitting full-motion, television-quality color video signals along with digital data signals over a pair of ordinary unshielded twisted pair telephone wires without interfering with normal telepho... | 04/15/1997 |
| 5585845 | Electronic still camera having data storage device and method for recording image data within said data storage device An electronic still camera includes, but is not limited to, an imaging unit to produce image data corresponding to an image of a subject to be imaged, a recording medium to record the image data and a sequence controller to control recording of the image ... | 12/17/1996 |
| 5581311 | Image storage system for a digital still camera A digital still camera having increased operation speed without substantial cost increases. The digital still camera is provided with an imaging unit which outputs image signals indicative of a frame of a subject, a temporary storage unit which accumulate... | 12/03/1996 |
| 5581298 | Color signal processing apparatus using plural luminance signals Disclosed is a color signal processing apparatus in which at least three types of color signals corresponding to filters are received from a solid-state image pickup element on which at least three types of color filters are formed, and linear matrix conv... | 12/03/1996 |
| 5581299 | Multi-functional camera with graphics editor and form stand This is a dual film and digital camera with an internal EPROM which holds a full graphics editor and a full communications program. The communications program auto senses which external port is active and uploads itself and the graphics program and any di... | 12/03/1996 |
| 5576760 | High resolution television camera using frame memory A high sensitivity television camera utilizing storage time control system improves the sensitivity without degradation of resolution. Storage time of signal charge in a CCD image pick-up element which is scanned progressively is controlled. An amount of ... | 11/19/1996 |
| 5574966 | Wireless base station architecture A wireless base station architecture that is particularly well-suited for providing audio, video and data services. An exemplary embodiment preferably transmits to all of an area those "common services" (e.g., broadcast television) that are intended to be... | 11/12/1996 |
| 5574513 | Color selection aperture correction circuit A video signal processor controls aperture correction of the video signal by detecting the occurrence of particular colors in the image produced by the video signal. The particular color, for example, fleshtone, is detected as a ratio of the amplitude of ... | 11/12/1996 |
| 5572254 | Digital video camera with frequency converter and D/D converter for color-difference signals In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digita... | 11/05/1996 |
| 5572253 | Digital video camera for processing analog luminance signal and digital color information signal In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digita... | 11/05/1996 |
| 5570128 | Digital video camera with frequency converter and digital modulator for color-difference signals In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digita... | 10/29/1996 |
| 5568195 | Image pickup device with white balance function An image pickup device capable of white balance control, independent from the color of light source or from the change in color temperature, without the influence of the object of high saturation and with adaptation to the change in color of the light sou... | 10/22/1996 |
| 5568191 | Video camera and method with controlled interface registers A video camera is provided in which an effective image plane is not affected even if a command to write data is supplied from a microcomputer to a signal processing portion in an effective video period. A plurality of control registers are provided in an ... | 10/22/1996 |
| 5568192 | Method and apparatus for processing digital video camera signals A system and method for processing video signals. According to a preferred embodiment, a plurality of video signals is captured with a camera in response to an image. The plurality of video signals is converted with the camera to a plurality of raw digita... | 10/22/1996 |
| 5568193 | Image pickup device providing enhanced horizontal bandwidth To obtain an image pickup device capable of obtaining wide-band R, G, and B signals, R, G, and B signals are generated by a coincidence and matrix circuit using Ye/Cy and Mg/G components of outputs from an image pickup element in units of pixels. A wide-b... | 10/22/1996 |
| 5565931 | Method and apparatus for applying gamma predistortion to a color image signal A system and method for generating gamma-predistorted video signals. A close approximation to the ideal gamma predistorted values of Y, Cr and Cb video signal components are generated from linear camera or computer output signals using at most a single ma... | 10/15/1996 |
| 5561462 | Electronic still camera with selective suspension of the drive of the image sensing means In an electronic still camera of the kind having a detachable mounted photo-taking optical system, an image sensor which converts into an electrical video signal an object image formed by the photo-taking optical system, a recording circuit which records ... | 10/01/1996 |
| 5559563 | Waveform response improvement circuit A waveform response improvement circuit including first to fourth delay circuits for sequentially delaying an input signal by respective predetermined delay times, circuits for obtaining an inverted signal of a signal indicative of increase/decrease of th... | 09/24/1996 |
| 5557326 | Method and apparatus for producing a false color image A method for creating a false color image, by utilizing a video camera provided with two or three arrays of semiconductor detectors, the sensitivity range whereof, in relation to wavelength, extends from the visible light range to near infrared radiation ... | 09/17/1996 |
| 5555197 | Video signal processor and method for processing a scanning line regardless of the synchronizing signal A coprocessor is incorporated in a processor comprising a CPU, an instruction cache, a data memory, a bus controller, an interruption control section and a DMA controller. This coprocessor has a parallel sum-of-products arithmetic operation section, a com... | 09/10/1996 |
| 5555464 | Red/near-infrared filtering for CCD cameras A CCD camera is adapted for detecting red and near-infrared wavelengths by employing filters that are constructed to allow for the passage of only red light in certain areas and near-infrared light in other areas of the filter. The areas are designed to m... | 09/10/1996 |
| 5555026 | Method and apparatus for stabilizing a video state of a video display having a picture-in-picture function A video state stabilization apparatus for use in a video display unit for displaying a sub-picture within a main picture. The video state stabilization apparatus receives a main picture ABL control signal, and has a sub-picture beam current detector for g... | 09/10/1996 |
| 5555023 | Signal processing circuit for video camera which prevents a false aperture signal from being generated A signal processing circuit is utilized in a video camera which includes a CCD having pixels arranged in a dot-matrix fashion and color filters of R, G and B arranged in a mosaic fashion, and an output signal from the CCD is converted into a digital signa... | 09/10/1996 |
| 5555029 | Method and apparatus for post-processing decoded image data A post-processing filter apparatus for use in an image signal decoding system, capable of improving the image quality of the system, comprises a memory for storing decoded image data of a current frame; a controller for assigning each pixel value included... | 09/10/1996 |
| 5555028 | Post-processing method and apparatus for use in an image signal decoding system A post-processing filter apparatus for use in an image signal decoding system, capable of improving the image quality of the system, comprises a memory for storing decoded image data of a current frame; a filter for filtering target pixel data in the stor... | 09/10/1996 |
| 5552825 | Color resolution enhancement by using color camera and methods A color resolution enhancement method and enhanced color cameras (600) with a single CCD detector (606) having attached color filters (604) and using luminance-based gradient interpolation to fill in color channels. A color camera, includes an image detec... | 09/03/1996 |
| 5552826 | Digital video camera with external chrominance signal digitized at subcarrier frequency multiple In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digita... | 09/03/1996 |
| 5550588 | Data input device and data input method for inputting image data from camera to memory A set of image data of an object is picked up by a camera installed on a camera mount. The camera has a variable shooting angle in accordance with an operational state of the camera mount. A sensor system senses the operational state of the camera mount t... | 08/27/1996 |
| 5550597 | Signal processing method and signal processing device When an input component image signal is inputted in a signal processing step, a high-frequency signal emphasis processing like HPF is performed with respect to a luminance signal and a processing like LPF with replenishment of the low-midrange frequency s... | 08/27/1996 |
| 5548346 | Apparatus for integrally controlling audio and video signals in real time and multi-site communication control method A real time visual communication system capable of improving a correspondence between a received video signal and a received audio signal in real time and improving reality. An AV signal is separated into a video signal and an audio signal, and the output... | 08/20/1996 |
| 5543859 | Horizontal contour emphasizing signal processor An improved horizontal contour emphasizing signal processor is provided with a detector to detect a period during which luminance signal changes are produced, a generator to generate a rectangular-wave signal during this period, and a multiplier for multi... | 08/06/1996 |
| 5543849 | Synchronization of prerecorded audio/video signals with multi-media controllers A fuel dispenser having a controllable audio/video program display includes a fuel pump and delivery path, a program media display, and a prerecorded program and a multi-media controller to direct program signals to the program media display. Apparatus is... | 08/06/1996 |
| 5543857 | Graphical menu for a television receiver A television receiver, includes a graphics generator for generating for display a stylized image of the environment in which the user's physical television receiver is situated. The image includes graphical representations of functions which are available... | 08/06/1996 |
| 5541648 | Color image pickup apparatus having a plurality of color filters arranged in an offset sampling structure A color image pickup apparatus includes an image pickup element, an optical low-pass filter, and a memory. The image pickup element has four types of color filters which are arranged to form an offset sampling structure in which color filters of different... | 07/30/1996 |
| 5541651 | Multi-format digital image pickup apparatus An image pickup apparatus which includes a timing pulse generator, an imager having an effective pixel number requiring a predetermined frequency for the horizontal scanning pulse in order to to produce a video signal having a normal aspect ratio and a vi... | 07/30/1996 |