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Patent # Description
US-4,839,723 TV camera
A TV camera of this invention is adapted to be attached to an eyepiece section of, for example, an endoscope. The camera has a camera body with an eyepiece...
US-4,839,722 Method and apparatus for providing improved color correction in a subtrative color printing system
An improved color correction apparatus for improved color printing in a subtractive color printing system is disclosed. The disclosed apparatus utilizes an...
US-4,839,721 Method of and apparatus for transforming color image data on the basis of an isotropic and uniform colorimetric...
A color transform enables color-image information to be recorded, displayed and otherwise processed with exacting control of color relative to a selected...
US-4,839,720 Compatible widescreen television system with auxiliary subcarrier modulated by side panel high frequency...
A widescreen television signal having left side, right side and center panel information is converted into a signal compatible with a standard television system,...
US-4,839,719 Color image reading apparatus with an improved sensor
A color image reading apparatus according to the present invention processes by shifting of a sensor element one by one, output signals from three sensor...
US-4,839,718 Luminance selection apparatus for video signal control system
A luminance selection apparatus for correcting the hue, saturation and luminance of an input color video signal as a function of the luminance of the signal. The...
US-4,839,717 Ceramic package for high frequency semiconductor devices
A ceramic semiconductor package suitable for high frequency operation includes internal and external ground planes formed on opposite faces of a ceramic base...
US-4,839,716 Semiconductor packaging
A semiconductor package of the small outlined integrated circuit type is disclosed having an angled glass sealing surface. Another aspect of the invention...
US-4,839,715 Chip contacts without oxide discontinuities
An integrated circuit chip including a first and a higher second surface levels with an abrupt sidewall step transition therebetween, and having a first layer of...
US-4,839,714 High-gain photodetectors made from NIPI mesas with selective lateral contacts
A selective contact to a NIPI doping superlattice having a trap free (or low trap density) contact in contact with the layers of the superlattice. In a NIPI...
US-4,839,713 Package structure for semiconductor device
A package structure comprising a metallic cap having a bottom wall to which the bottom surface of the semiconductor chip is electrically and mechanically...
US-4,839,712 Compact combiner for semiconductor devices operating in the ultra-high frequency range
The invention relates to a compact combiner for ultra-high frequency semiconductor devices, such as negative resistance diodes (Gunn - Impatt). The combiner...
US-4,839,711 Dielectric for laser trimming
The thickness of the dielectric material of an integrated circuit on top of which is provided a semiconductor layer, is selected to be an integer multiple of...
US-4,839,710 CMOS cell which can be used as a resistor, a capacitor, an RC component or a terminating impedance of a signal
A CMOS technology cell which can be formed as a resistor, a capacitor, a resistor capacitor combination or a load impedance in a gate array wherein a basic cell...
US-4,839,709 Detector and mixer diode operative at zero bias voltage
This invention is directed to an NPIN (or PNIP) diode structure and epitaxial process for fabricating same wherein the thickness and doping levels of the...
US-4,839,708 Electromechanical semiconductor transducer
There is disclosed an electromechanical semiconductor transducer which is composed of a substrate of a first compound semiconductor and layers of second to fifth...
US-4,839,707 LCMOS displays fabricated with implant treated silicon wafers
An improved LCMOS display device employing a silicon-on-insulator (SOI) substrate having an epitaxial silicon layer lying over an implant-generated dielectric...
US-4,839,706 Avalanche photodetector
A low noise doped quantum well avalanche photodector (APD) having repeated superlattice units. Where the majority carriers are electrons, each unit is formed...
US-4,839,705 X-cell EEPROM array
An X-cell EEPROM array includes a plurality of common source regions (50) that each border on four gate regions (46), both formed at a face of a semiconductor...
US-4,839,704 Application of deep-junction non-self-aligned transistors for suppressing hot carriers
A structure and method of fabricating same is provided for a deep junction, non-self-aligned MOS transistor for suppressing hot carrier injection. According to...
US-4,839,703 High speed and power transistor
A high speed and high power transistor includes a first layer of a first semiconductor material, a second layer of a second semiconductor material formed on the...
US-4,839,702 Semiconductor device based on charge emission from a quantum well
A semiconductor device implemented on a substrate which includes a first layer of semiconductor material of a first conductivity type composed of a semiconductor...
US-4,839,701 Hydrogenated amorphous silicon film
A process for production of a hydrogenated amorphous silicon film of a silicon compound containing at least one element selected from the group consisting of...
US-4,839,700 Solid-state non-volatile electronically programmable reversible variable resistance device
A solid-state variable resistance device (10) whose resistance can be repeatedly altered by a control signal over a wide range, and which will remain stable...
US-4,839,699 Image reproducing apparatus
An image recording apparatus comprising a device for setting the magnification-changing mode of an image, a device for changing the magnification of the image in...
US-4,839,698 Copying apparatus
An image processing apparatus including a plurality of process devices for processing an image. A first control device is provided for controlling at least a...
US-4,839,697 Image forming apparatus
An image forming apparatus which is provided with a sheet guide disposed adjacent to a transfer charger and is movable between the first position adjacent to a...
US-4,839,696 Image recording apparatus for recording a selected portion of an original image
An image recording apparatus includes photosensors for detecting an image region of an original, an exposure section for forming an image on a photosensitive...
US-4,839,695 Device for controlling charge area of photoreceptor
A device for controlling the charge area of a photoreceptor comprising a detector for detecting the length of a sheet of copying paper, another detector for...
US-4,839,694 Printing apparatus
In a heat roller fixing device in a printing apparatus, a pressure roller and a heat roller are arranged in opposition to each other, and a medium is passed...
US-4,839,693 Copying apparatus
A copying apparatus of this invention is of a moving document table type, wherein the document table moving speed after completion of scanning for a copying...
US-4,839,692 Apparatus for reproducing multi-color image
A photoreceptor having a insulating layer in which plural color-separation filters are arranged in the form of fine line type or of mosaic type provided on the...
US-4,839,691 Image forming apparatus
In an image forming apparatus which tranfers a toner image to a sheet in accordance with image information, a first connector, is fixed to the outside of a...
US-4,839,690 Image bearing member usable with image forming apparatus
An image bearing member which is detachably mounted into a main assembly, and which is to be electrically connected with the main assembly. The image bearing...
US-4,839,689 Image forming apparatus
An image forming apparatus in which the electrostatic latent image formed on the latent image bearing member can be developed into an arbitrary state, or...
US-4,839,688 Development apparatus
An apparatus in which a latent image recorded on a photoconductive member is developed with developer material. A developer roller, positioned closely adjacent...
US-4,839,687 Flash photography system
A flash photography system which comprises a photographic camera and an electronic flash device; said photographic camera comprising aperture value output means for...
US-4,839,686 Flash device
An improved flash device which is characterized in the provision of a power source, a main capacitor adapted to be charged by the power source, a flash firing...
US-4,839,685 Light receiving element for a rangefinder
A light receiving element of a rangefinding device, for example for use in a camera, comprises a photoconversion light receiving element of which the light...
US-4,839,684 Photographic tray agitator
A photographic tray agitator is set forth wherein an oscillating arm is cycled to maintain a photographic tray of chemicals constantly agitated for enhancing...
US-4,839,683 Automatic image developing apparatus
An automatic image developing apparatus for automatically developing an image recorded on a photographic photosensitive material includes a feeder assembly for...
US-4,839,682 Processing apparatus for disc films
An object of the invention is to provide a processing apparatus for handling a disk film unit consisting of a disk-shaped photographic film and a cartridge...
US-4,839,681 Camera accessory output information system
An output information system for providing preset information signals from a camera accessory (Y), such as an interchangeable lens or a stroboflash device, to a...
US-4,839,680 Method and device for driving lens shutter
A method of driving a lens shutter of an interchangeable lens for a single-lens reflex camera comprises steps of charging the lens shutter, opening shutter...
US-4,839,679 Dual voice coil shutter
A dual voice coil shutter is disclosed. The shutter mechanism is utilized in a stepper system, a laser system, or other carefully channeled light device to...
US-4,839,678 Film counter for cameras
A film counter indicator dial is journalled in a camera door and carries frame count indicia visible through a window in the door. The dial has peripheral gear...
US-4,839,677 Focal length switching type camera
A focal length switching type camera wherein the focal length switching operation is initiated by a focal length switching and operating device, and a motor for...
US-4,839,676 Film cassette-liquid spread roller assembly interface
Photographic apparatus for supporting a cassette containing a plurality of film units of the self-developing type in position for exposure. Subsequent to its...
US-4,839,675 Catch and release fish data recording system
A device useful for recording data concerning fish which have been caught. The system includes a carrying case enclosing operative components of the system,...
US-4,839,674 Recorder-medium registration system
In a recorder, at least one set of marks spaced by a predetermined distance in a feed direction of a record paper are recorded on the record paper, the marks are...
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