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Patent # Description
US-4,833,528 Color video projecting apparatus using acousto-optical deflector
Disclosed is a laser beam scanning system which includes a plurality of laser sources each of which produces a laser beam having a different wavelength. The...
US-4,833,527 Luminance signal forming circuit
In a luminance signal forming circuit, output signals from a color television camera having complementary color filters are subjected to a matrix operation to...
US-4,833,526 Three dimensional non-adaptive decoder for a PAL color television composite signal
Apparatus for decoding a luminance signal from a PAL composite signal comprising a summing one line delay for deriving the sum of corresponding pixels on...
US-4,833,525 High speed color balance adjusting device capable of compensating for a flickering light source
A device performs color balance adjustment on the basis of color temperature information obtained by adding up measured color information outputs sampled from...
US-4,833,524 System for two-dimensional blending of transitions between a color video picture signal and a background color...
The magnitude of a chroma-key selected color signal is evaluated for successive pixels in comparison with the previous line as well as in comparison with a...
US-4,833,523 Chroma crawl elimination without any cumulative difference in frame time
Chroma crawl, and a 15 Hz component introduced by the NTSC subcarrier pattern repeated every four fields, is obviated by adding to and substracting from the...
US-4,833,522 Semiconductor module
Semiconductor module, including a metallic bottom plate, at least two semiconductor bodies disposed on the bottom plate, at least one of the semiconductor bodies...
US-4,833,521 Means for reducing signal propagation losses in very large scale integrated circuits
A method and means for reducing signal propagation losses in very large scale integrated circuits is provided comprising a ground plane located adjacent to, but...
US-4,833,520 Semiconductor integrated circuit having wirings for power supply suited for computer-aided-design
A semiconductor integrated circuit of standard-cell type or gate-array type includes a plurality of first cells arranged in a plurality of parallel lines, the...
US-4,833,519 Semiconductor device with a wiring layer having good step coverage for contact holes
A method and apparatus are disclosed for improving step coverage of a wiring layer of a semiconductor device especially at the contact holes thereof. The inside...
US-4,833,518 Semiconductor memory device having improved interconnection structure of memory cell array
A memory cell array is divided into two groups, one bit line of a pair of bit lines is connected to corresponding memory cells in the first group of the memory...
US-4,833,517 Theta device with improved base contact
A vertical ballistic transistor is described. Base metallic contacts of reliable thickness are deposited on a carrier depletable layer and diffuse into the base....
US-4,833,516 High density memory cell structure having a vertical trench transistor self-aligned with a vertical trench...
A new high density vertical trench transistor and trench capacitor DRAM (dynamic-random-access memory) cell is described incorporating a wafer with a...
US-4,833,515 Imaging devices comprising photovoltaic detector elements
In an imaging device, photocurrent generated by photovoltaic detector elements (1), e.g. cadmium mercury telluride photodiodes, is integrated in resettable...
US-4,833,514 Planar FAMOS transistor with sealed floating gate and DCS+N.sub.2 O oxide
The invention provides an EPROM having a high quality dielectric to separate the floating gate from low quality dielectric layers used in the prior art by the...
US-4,833,513 MOS FET semiconductor device having a cell pattern arrangement for optimizing channel width
A semiconductor device, i.e. diffusion-self-alignment MOS FET including an n type first semiconductor layer, a p type second semiconductor layer formed in a...
US-4,833,512 Heterojunction photo-detector with transparent gate
A photo-detector in the form of an optical field effect transistor comprig a semi-insulating InP substrate (1), a p.sup.+InP gate region ( 2) an n.sup.- InGaAs...
US-4,833,511 Phototransistor device
An improved phototransistor device comprises a collector region and a base region respectively provided on the opposite sides of a multiple quantum well, and an...
US-4,833,510 Semiconductor laser array with independently usable laser light emission regions formed in a single active layer
A semiconductor laser array includes a pair of regions of an active layer for emitting laser lights being provided so as to produce a predetermined angle...
US-4,833,509 Integrated circuit reference diode and fabrication method therefor
This disclosure is a integrated circuit reference diode having improved manufacturability and electrical characteristics. The improved diode results from a...
US-4,833,508 High electron mobility device with intrinsic AlAs/GaAs superlattice separator region
A field effect semiconductor device which utilizes a 2DEG and is composed of a semi-insulating GaAs substrate; an i-type GaAs active layer; a superlattice...
US-4,833,507 Electron emission device
An electron emission device comprises a P-type semiconductor layer which emits electron injected into the P-type semiconductor layer by utilizing the negative...
US-4,833,506 Method and apparatus for controlling toner density of copying device
A toner density control method and apparatus of a copying device for copying continuously from a plurality of documents onto recording sheets optically detect...
US-4,833,505 Latent image color developing system
A latent color image developing system for copying a document having a first color images and second color images develops the first color images with a first...
US-4,833,504 Single pass highlight color printer including a scavengeless developer housing
A magnetic brush developer apparatus comprising a plurality of developer housings each including a plurality of magnetic rolls associated therewith. The magnetic...
US-4,833,503 Electronic color printing system with sonic toner release development
A multi-color printer using a sonic toner release development system to provide either partial or full color copies with minimal degradation of developed toner...
US-4,833,502 Image forming apparatus having an image bearing member reciprocally movable in the direction of the rotational...
The present invention prevents a particular portion of a drum-like image bearing member from being physically damaged or chemically deteriorated by the image...
US-4,833,501 Apparatus and method for filling a toner reservoir by suction
An apparatus is provided for filling toner from a transport container into a toner reservoir from where the toner is then supplied to a developing station of an...
US-4,833,500 Developing apparatus
A developing apparatus in a transfer-type electrophotographic system having a photosensitive body, wherein the developing apparatus includes a developing roller...
US-4,833,499 Shutter speed setting apparatus
A shutter speed setting apparatus is provided which is arranged to respond to a main capacitor charge completion signal to judge whether or not the set value of...
US-4,833,498 Camera
This invention is based on the discovery of the fact that a proportional relationship exits between a reciprocal of an exit pupil of a photographic lens and an...
US-4,833,497 Apparatus for adjusting focus in the macro-photographing mode of an automatic focus camera
An apparatus for adjusting the focus in the macro-photographing mode of an automatic focusing camera. The apparatus includes an object distance measuring optical...
US-4,833,496 Web guiding apparatus
A film guide shoe for a film processor is supported on the shafts of two pinch rollers which are biased into contact with a turnaround roller. The guide shoe...
US-4,833,495 Lens-fitted photographic film package
A lens-fitted photographic film package comprises a light-tight film case having exposure structure, a rolled film in a film roll receiving chamber disposed on...
US-4,833,494 Single lens reflex camera having replaceable view finder
A single lens reflex camera having a replaceable view finder unit, wherein it includes an electric circuit therein, said electric circuit capable of being...
US-4,833,493 Sheet film holder
A sheet film holder with means to expose a portion of the unused film edge to a logo, copyright notice or other desired media. The top and bottom rear portions...
US-4,833,492 Charge neutralization for plain paper electrography
An ion projection printing apparatus for printing on one side of a charge receptor sheet including an ion projection means, development means, a back electrode...
US-4,833,491 Thermal ink jet printer adapted to operate in monochrome, highlight or process color modes
A thermal ink jet printer has an ink delivery system which enables rapid changes and increased operational speeds when changing between full color, highlight...
US-4,833,490 Writing element with exchange mechanism
In a device for exhanging objects, in particular writing instruments, between two holders (4, 5) open on one side, in which the object (6) is retained at least...
US-4,833,489 Electrical f.multidot..theta. correction system in a laser printer
In optical scanning system of laser printer, laser lights are scanned at uniform speed on a photosensitive plane through the projection lens which brings focuses...
US-4,833,488 Thermal-optical recording head
The ink jet method and thermal copying method have been developed as the method of obtaining hard copies in colors from terminals of data systems such as a...
US-4,833,487 Method of and apparatus for recording image onto a recording medium without subjecting the medium to undesired...
An image is recorded on an elongate image recording medium by feeding the image recording medium in an auxiliary scanning direction from a loading unit and...
US-4,833,486 Ink jet image transfer lithographic
An ink jet image transfer lithographic apparatus is coupled to a source for supplying graphics and textual material to an ink jet printhead. The ink jet...
US-4,833,485 Radar antenna array
A close-packed divergent array of cavity-backed antennas for use in the radome of a missile. Each antenna cavity is tapered from its radiating face towards its...
US-4,833,484 Earth terminal for satellite communication
An earth terminal for a satellite communication system incorporates an oval or eliptical shaped antenna 1 whose horizontal dimension d.sub.1 is greater than it's...
US-4,833,483 Vertical antenna
A ten-band vertical antenna includes completely automatic band switching for the amateur radio frequencies of eighty, seventy-five meters, forty meters, thirty...
US-4,833,482 Circularly polarized microstrip antenna array
An antenna arrangement is disclosed for radiating and receiving circularly polarized radiation. A first antenna array having parallel stripline conductors is...
US-4,833,481 Roadside beacon system
A roadside antenna system permitting the transmission of data to a vehicular navigation system and providing for the recalibration of positional data carried by...
US-4,833,480 Short range ranging system
An accurate ranging system for position determination of a mobile unit using trilateralization. A pair of active reflectors return signals transmitted by the...
US-4,833,479 Digital poly-phase pulse compressor
A digital poly phase pulse compressor that utilizes delay lines to separate KN samples of a received compressed pulse in I and Q channels, multiplies N of the KN...
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