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| Patent # | Description |
|---|---|
| US-4,873,574 |
Noise measurement for video signals The present invention discloses a noise measurement method and system in a television signal receiver. In the preferred embodiment, the receiver has a noise... |
| US-4,873,573 |
Video signal processing for bandwidth reduction At the transmitter a coder includes a motion vector generator providing vectors (MV) describing the movement of individual blocks of pixels. The video signal is... |
| US-4,873,572 |
Electronic endoscope apparatus This electronic endoscope apparatus comprises an elongate insertable part, two image forming optical systems provide in the tip part of the insertable part and... |
| US-4,873,571 |
Device for positioning a mock-up in three dimensions, in particular for
studying backscattering from said mock-up The present invention relates to a device (1) for positioning a mock-up (2). The device comprises supports (3, 4) suitable for holding the mock-up in a variable... |
| US-4,873,570 |
Color image processing apparatus for selectively altering image colors A color image processing apparatus such as a color copying machine has a color appointing device for enabling an operator to appoint any desired color involved... |
| US-4,873,569 |
Image reader having spectroscope for color separation A spectroscope (20) and a multi-row image sensor (40) are fixed to each other. Light from an original is supplied through an image-formation optical system to a... |
| US-4,873,568 |
Digital video effects apparatus A digital video effects apparatus comprises an input for receiving a digital input video signal representing the distribution of optical information over a video... |
| US-4,873,567 |
Extended horizontal resolution of luminance and chrominance in a high
definition television system Method and apparatus for extending the horizontal resolution of the luminance and chrominance video signals in a two-channel HDTV system, requiring no increase... |
| US-4,873,566 |
Multilayer ceramic laser package A multilayer ceramic package for optical devices is disclosed for use in both high and low bit rate applications. A side portion of the multilayer package is... |
| US-4,873,565 |
Method and apparatus for providing interconnection between metallization
layers on semiconductor devices A metal stud (24) is provided for interconnecting levels of metallization separated by an insulator on a semiconductor slice (10). A lead (12) is coated with a... |
| US-4,873,564 |
Conductivity-modulated FET with improved pinch off-ron performance The constraint on the channel thickness of a conductivity-modulated FET is reduced by forming the junction gate region of a pair of differentially doped regions,... |
| US-4,873,563 |
Solid state monolithic switching device A monolithic switching array integrated with control logic on a dielectrically isolated monolithic substrate is provided wherein individual components are... |
| US-4,873,562 |
Charge-coupled device with lowering of transfer potential at output and
fabrication method thereof Disclosed are a charge-coupled device with lowering of output potential as well as a method for the fabrication of this device. In a known way, the device... |
| US-4,873,561 |
High dynamic range charge-coupled device A high dynamic range charge collection circuit is described which includes additional electrodes between the photogate and the transfer gate electrode to create... |
| US-4,873,560 |
Dynamic random access memory having buried word lines This invention relates to a very large scale dynamic random access memory, and discloses a memory cell having a reduced step on the device surface portion and... |
| US-4,873,559 |
Semiconductor memory device and a process for producing the same Dynamic RAM having memory cells, each of the memory cells having a capacitor with the electrode comprised of a first semiconductor region of a first type of... |
| US-4,873,558 |
Group III-V compound field effect transistor with diffusion barrier Group III-V compound MISFETs include a low-doped diffusion barrier layer disposed between a source/drain contact-facilitating layer and the channel layer. |
| US-4,873,557 |
MIS FET and process of fabricating the same An LDD MIS FET comprises a silicide over the lightly doped regions to reduce the parasitic resistance and to prevent the depletion of the lightly-doped regions,... |
| US-4,873,556 |
Hetero-junction device The present invention relates to a hetero-junction device comprising a hetero-junction formed at the interface of two .pi.-conjugated system polymers (A) and (B)... |
| US-4,873,555 |
Intraband quantum well photodetector and associated method A fast, real time method and apparatus for long wavelength infrared photodetection employs a quantum well from which stored electrons are ejected by... |
| US-4,873,554 |
Electrostatographic machine with withdrawable copy paper module An electrostatographic machine which includes means for forming an electrostatic latent image on an imaging member; means for developing the electrostatic latent... |
| US-4,873,553 |
Variable pressure controls of fixing device in electrophotographic
copying machine A variable pressure control of fixing device, which includes a fixing roller and a compression roller in contact with each other and serves to fix a toner image... |
| US-4,873,552 |
Reader-printer A reader-printer which can print a particular image area, which is selected from a whole image projected on a screen, in a desired position on copying paper. The... |
| US-4,873,551 |
Developing apparatus using magnetic carrier under AC field The present invention relates to a developing apparatus using magnetic carrier particles and toner particles under the influence of an alternating current. One... |
| US-4,873,550 |
Electrophotographic copier including means for sensing the size of an
original document An electrophotographic copier of the type moving an original document and optics relative to each other to expose a photoconductive element imagewise via the... |
| US-4,873,549 |
Device for detecting the life of an image forming process unit, opening
of a seal of the unit and attachment of... A device for detecting the life of a process unit which is detachably mounted in an image forming apparatus includes a sensor for detecting the density of the... |
| US-4,873,548 |
Image forming apparatus comprising a main assembly having a top frame
adapted to swing open and closed with... An image forming apparatus provided with a positioning mechanism for positioning a process cartridge in the main assembly. The process cartridge is detachably... |
| US-4,873,547 |
Sheet conveying apparatus An image forming apparatus includes sheet accommodating cassette for accommodating sheets, a device for forming images on the sheets, a first sheet conveying... |
| US-4,873,546 |
Color printing method and apparatus Light containing blue, green and red radiation is passed through a colored original which is to be printed on color copy material. The transmitted light is... |
| US-4,873,545 |
Method of developing image on electrophotographic film A developing method for developing an image on an electrophotographic film by means of a processing head which has a developing section to which the film is... |
| US-4,873,544 |
Photographic camera having a piezo-electric actuating element A photographic camera of the type including a piezo-electric actuating element driven by energy accumulated in a capacitor for actuating a shutter wherein the... |
| US-4,873,543 |
Automatic focusing camera An automatic focusing camera includes a sensor for detecting an amount and a direction of difference between an image forming position of light from an object... |
| US-4,873,542 |
Auto-focus camera An auto-focus camera of this invention has a focusing lens supporting feed screw rod supported substantially parallel to the lens optical axis and having a slit... |
| US-4,873,541 |
Image forming apparatus An image forming apparatus such as a laser beam printer has a plurality of movable image carrying members such as photosensitive drums, an image forming member... |
| US-4,873,540 |
Image recording method A method of forming an image comprising the steps of: (a) arranging a plurality of recording electrodes opposite to a movable recording member having an... |
| US-4,873,539 |
Phase change ink jet apparatus In order to minimize the effects of heating on performance and reliability in a phase change ink jet system, the ink jets comprise a material having a thermal... |
| US-4,873,538 |
Pen shuttle guide and spring return A rotary action graphic recording system includes a pen carriage supporting a linear array of moveable pen shuttle assemblies each of which support recording... |
| US-4,873,537 |
Image recording apparatus for producing a plurality of pulse width
modulated signals on the basis of image data An image beam recording apparatus including an image data input device, a comparator for forming a plurality of pulse width modulated signals on the basis of the... |
| US-4,873,536 |
Method and apparatus for preventing unevenness in printing depth in a
thermal printer The present invention provides improved method and apparatus for preventing unevenness in thermal printers. Generally unevenness in thermal printers is a result... |
| US-4,873,535 |
Method of driving thermal head A driving method for a thermal head which has a plurality of thermal resistance elements arranged in a line. The thermal resistance elements are electrically... |
| US-4,873,534 |
Hybrid mode feed horn having funnel-shaped horn flange with grooved
conical inner surface A hybrid-mode feed horn for feeding a reflector from the primary focus has a flange provided with grooves in an inner funnel-shaped surface thereof. The horn... |
| US-4,873,533 |
Marker for locating a buried object A marker for positioning near a buried object wherein the marker can be detected to locate the buried object. The marker includes a passive resonant type antenna... |
| US-4,873,532 |
Antenna apparatus for a vehicle An antenna element conductor is formed on a transparent insulating film. An adhesive is applied to the rear surface of the film. A connector is provided to a... |
| US-4,873,531 |
Identification transponder for use when a vehicle passes a given point The transponder is constituted by a waveguide (1) having a large face (2) including longitudinal slots (3) and pairs of slots distributed along the axis (WW') of... |
| US-4,873,530 |
Antenna device in automotive keyless entry system In a ratio-mediated keyless entry system for an automotive vehicle, two vehicle-mounted antennae, lying in mutually perpendicular planes are used to receive... |
| US-4,873,529 |
Coplanar patch antenna A coplanar patch antenna is formed, e.g as a printed circuit, on a dielectric support (1) by a metal patch (2) spaced from a coplanar ground plane (3) by a... |
| US-4,873,528 |
Device for energizing a non-eccentric in the wide side of a waveguide,
and a slotted antenna comprising such a... A rectangular waveguide with one wide side pierced by slots centered on the longitudinal axis of symmetry. The other wide side includes a ridge having a metallic... |
| US-4,873,527 |
Antenna system for a wrist carried paging receiver The antenna system of the present invention includes a single loop antenna connected in series with a ferrite core loop antenna. The single loop antenna is... |
| US-4,873,526 |
Mobile station antenna attitude control apparatus A mobile station antenna attitude control apparatus comprising an antenna, a drive mechanism, a receiving level detecting means, a first device information... |
| US-4,873,525 |
Compact R segment D/A converter A digital-to-analog converter includes a group of resistors serially connected between a power source potential supply terminal and a reference potential supply... |
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