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Patent # Description
US-4,841,322 Camera having interchangeable lenses
A camera and interchangeable lenses for such camera in which it is automatically detected whether or not the lens mounted on the camera has an automatic focusing...
US-4,841,321 Circulating liquid flow detecting apparatus in a machine for automatically processing light-sensitive material
An apparatus for detecting circulating liquid flow in a machine for automatically processing a photographic light-sensitive material is disclosed in which a...
US-4,841,320 Developing device for photosensitive material
A devleoping device for photosensitive materials, particularly, for photosensitive materials used flat printing plates, in which the consumption rate of the...
US-4,841,319 Apparatus for loading a film cassette into a camera
A compartment defining a cassette receiving chamber in a photographic camera is movable outwardly from the camera body to insert the type of 35 mm film cassette...
US-4,841,318 Camera system with mode selecting device
A mode selecting device for use in a camera having at least two modes, namely, a consecutive picture taking mode and a single picture taking mode. In the...
US-4,841,317 Web handling device
A web storage and handling system employing two concentric rings of rollers. The web is wound around the outer of the concentric arrangement and therefrom wound...
US-4,841,315 Exposure apparatus
An exposure apparatus of the present invention for forming a fluorescent screen over the inner surface of the panel of a color cathode ray tube has a drive...
US-4,841,314 Electrostatic latent image forming apparatus using semiconductor laser
An electrostatic latent image forming apparatus using a semiconductor laser forms an electrostatic latent image on a surface of a photoreceptor by a laser beam...
US-4,841,313 RF driver and control
An RF drive network provides RF drive power to a device such as an ion deposition print cartridge synchronized with the natural resonance of the driver/device...
US-4,841,312 Thermal-electrostatic ink jet recording apparatus
A thermal-electrostatic ink jet recording head is formed of two spaced-apart insulating substrates with an electrostatic field forming electrode and an array of...
US-4,841,311 Laser beam printer with compactly arranged photosensitive element, laser beam emitting element and reflective...
A laser printer, wherein a laser beam emitting element is positioned close to a photosensitive element, employs a solid state deflective element for deflecting...
US-4,841,310 High performance ink jet print head for use in a high speed printer
While present-day ink jet print heads are operable technically, they are too inconsistent and unreliable, and none has remained operational for as long as one...
US-4,841,309 Antenna with motorized positioner
A dish for receiving satellite signals mounted on a stand through a casing which has a shaft projecting through the casing, the shaft having ends connected to...
US-4,841,308 Slotted waveguide antenna assembly
A slotted waveguide antenna assembly includes a slotted waveguide, a dielectric beam shaper and reflectors which are fixed and held by a holder member. The...
US-4,841,307 Fluid jet applicator apparatus
Fluid jet printing apparatus having a fluid jet printhead and a pair of substrate positioning rolls for moving the substrate between a position below the...
US-4,841,306 Multi-color fluid jet pattern generator for textiles
A fluid jet printing line has a plurality of fluid jet printing devices arranged serially to sequentially print on a substrate. Each printing device includes a...
US-4,841,305 Method of sectioning an antennae reflector
A method of sectioning an antennae reflector without distorting the shape of the reflector surface. The reflector is supported in a substantially relaxed state...
US-4,841,303 Low cost method and system for automatically steering a mobile directional antenna
A low cost, automatic steering system and method of operation for mobile mounted, rotatable, directional antennas is described. The improved system and method...
US-4,841,302 Transmitter detector for use in a moving vehicle
Detection apparatus for alerting an operator of a moving vehicle to the proximity of a radio transmitter of known frequency and power, typically in a police...
US-4,841,301 Device operable like an automatic level control circuit for decoding a multivalued signal
In a device which is for use in a receiver of a multivalued digital communication system and which includes a reference voltage producing circuit (51) for...
US-4,841,300 Error correction encoder/decoder
A separate operational section for determining the degree of a polynomial is provided to increase the process speed in determining both error locator and...
US-4,841,299 Method and apparatus for digital encoding and decoding
Encoding and decoding method and apparatus are disclosed including a decoder for decoding a stream of encoded digital data words which have been encoded by an...
US-4,841,298 Bit pattern conversion system
A bit pattern conversion system for converting a sequence of a bit pattern between a central processing unit and a peripheral circuit, including a data bus line...
US-4,841,297 Displacement coder
A displacement coder of the differential type wherein, in order to reduce the dimensions thereof, a first disk is rotatably connected to a principal shaft...
US-4,841,296 Two-wire transmitter
A two-wire transmitter having a detecting section for detecting a physical variable to be measured to produce a detection output, first and second constant...
US-4,841,295 Local area network with biasing arrangement for facilitating access contention between work stations connected...
A local area data distribution system includes a plurality of data processing stations connected to a common bus. Individual data processing stations contend...
US-4,841,294 Active matrix display screen permitting the display of gray levels
A single signal is produced, which includes a pedestal and a ramp. This signal is supplied to a column control circuit which transmits the voltage to each column...
US-4,841,293 Process for displaying information
A display panel comprising of a semiconducting oxide between layers of a hole injector and an electron injector. The electron injector contains a metal oxide in...
US-4,841,292 Third dimension pop up generation from a two-dimensional transformed image display
A bit map image is stored as a two-dimensional array with z axis set arbitrarily at unity. Total rotation transform and screen projection is then treated as a...
US-4,841,291 Interactive animation of graphics objects
A technique is described for animating graphics objects (sprites) on a display. The display manager allows a user to select a sprite from the display or from a...
US-4,841,290 Display unit
In a display unit comprising a plate-shaped display panel with X-Y matrix electrodes consisting of two groups of electrodes, X-axis electrodes and Y-axis...
US-4,841,289 Interface circuit for adapting a multi-scan monitor to receive color display data from various types of computers
A monitor interface circuit for adapting a color display monitor to a selected one of various types of computers which generate different types of color display...
US-4,841,288 Earthquake illuminating device
An illuminating device comprises a housing having a light compartment and an off push-button located on the front wall thereof. The housing encloses a battery...
US-4,841,287 Earthquake utilities cut-off control system
A seismic detector which generates an electrical signal in response to the occurrence of a vertical seismic wave predetermined magnitude is mounted in a...
US-4,841,286 Apparatus and method for detection of an open thermocouple in a process control network
In a process control network, apparatus and method for periodic testing of a thermocouple element includes a switching mechanism that inserts a circuit with...
US-4,841,285 Tilt-responsive display case alarm
An alarm adapted for mounting in an interior corner portion of a display case has an L-shaped housing which encloses a battery, an audible alarm, a mercury...
US-4,841,283 Security hinge utilizing concealed radiative sensing to detect hinge position
A hinge construction having radiative emitter and detector concealed within the body of the hinge's knuckles so as to be in communication with each other when...
US-4,841,282 Smoke and liquid alarm
A smoke and liquid level detector particularly useful for detecting sump pump failure. The detector comprises a sensor head containing two exposed electrodes in...
US-4,841,281 Apparatus for controlling a switching amplifier
An apparatus for controlling the output of a switching amplifier includes a signal dividing circuit which generates a delayed replica of the carrier signal and a...
US-4,841,280 Visual display apparatus for information items
A visual display apparatus comprises a multisegment bar display (2) having display characters (16) divided into two groups. In the first group individual outer...
US-4,841,279 CMOS RAM data compare circuit
A data compare circuit includes an inverter (I1), a first group (20) of series-connected transistors, a second group (20) of series-connected transistors, and a...
US-4,841,278 Self-illuminant delineator and delineator system by use thereof
A self-illuminant delineator including a plurality of light-emitting diodes being flickerably disposed on the sign surface of the delineator and covered by a...
US-4,841,276 Vehicle low speed warning system
An electronic vehicle slow-speed warning system operable automatically to activate the vehicle stop or brake lights if the operator neglects to do so while the...
US-4,841,275 Thick-film integrated circuit device capable of being manufactured by means of easy-to-perform trimming operation
A thick-film integrated circuit device comprises an insulating substrate, first and second conductors, formed on the insulating substrate by means of a...
US-4,841,274 Temperature responsive probe apparatus
Temperature responsive apparatus includes a housing having a pair of spaced-apart probes, each receiving a different thermistor. The housing includes a one-piece...
US-4,841,273 High temperature sensing apparatus
A pair of spaced-apart electrically conductive strips are fused along their entire length to a ceramic substrate. The conductive strips are connected with a...
US-4,841,272 Semiconductor diffusion strain gage
A strain gage wherein neutral impurity atoms forming neither donors nor acceptors are doped in a silicon substrate and a diffused resistance element is formed in...
US-4,841,271 Trip-free resetting mechanism for an on-off unit
A trip-free mechanism for resetting an on-off unit, such as a thermostat (1), breakable by the tripping of an actuator element (3) from a first condition to a...
US-4,841,270 Heat-distributing winding
A heat-distributing winding for the equalization of uneven heating of the winding parts of an annular core transformer including a winding concentric with the...
US-4,841,269 Coil device
Disclosed is a coil device having feeders which are connected to a power source and which are adapted to supply electric current, a coil conductor section which...
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