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Patent # Description
US-4,129,901 Plural-sequence control system
A sequence control system is disclosed which is suitable for control of plural objects to at least some of which similar control sequence operations are...
US-4,129,900 Apparatus for lighting with fluorescent tubes of automatic fixing and connection
A fluorescent lighting fixture having an elongated housing with a pair of side flanges. The housing is adapted to be disposed in a first orientation wherein same...
US-4,129,899 Flashlight with a rotatable lamp holder
A flashlight has a battery holder provided with battery leads and a lamp holder having lamp socket leads. A connection between the two holders permits the lamp...
US-4,129,898 Light-diverting attachment for photographic flash units
An attachment for a photographic flash unit which functions to divert the high intensity light rays emanating from the flash unit along a path or paths axially...
US-4,129,897 Modular mounting apparatus for substrate means bearing planar circuit means
A modular mounting apparatus for substrate means bearing planar circuit means is provided and includes a design of components that assemble into a housing...
US-4,129,896 Meter retainer
A ringless-type socket for a watt hour meter is provided with support means to which an insulating carrier for plug-in contacts is mounted. The support means at...
US-4,129,895 Current wave shapes for jet engine fuel igniters
Jet engine fuel igniters are excited with a current waveform which maintains an intermediate current value until a discharge has separated from the igniter...
US-4,129,894 Laminated current surge protector
A laminated current surge protector comprising a flexible, conformable arrestor having a metal conductor encapsulated between a wear resistant tape adhered to...
US-4,129,893 Thermoelectric generator overload protective device using hysterisis control
A thermoelectric generator is equipped with a protective device which upon overload conditions disconnects a primary load, such as a rechargeable battery, in...
US-4,129,892 Back-up pressure mechanism with tensioned elongated member
Tensioning device for use with electromagnetic read/write transducing apparatus wherein a flat elongated band or strip of non-magnetic material is arranged...
US-4,129,891 Double partitioning of flexible disk pack and associated apparatus
Improved for subassembly partitioning, particularly as adapted for inclusion in disk drive apparatus for handling flexible disk packs, these packs preferably...
US-4,129,890 Magnetic recording and reproducing apparatus
A magnetic recording and reproducing apparatus is provided which is selectively applicable for tape cartridges and tape cassettes and which is formed with an...
US-4,129,889 Magnetic recording/reproducing apparatus using cassette
In a magnetic recording/reproducing apparatus having a support which reciprocates between reproduce and stop positions and is biased by a spring in the direction...
US-4,129,888 Data recording and/or reproducing system
A first digital signal characterized by a plurality of data groups each including a particular number of digital data bits is encoded to provide a second encoded...
US-4,129,887 Solid stage imaging apparatus
Relates to apparatus incorporating a two-dimensional array of image sensing devices arranged in rows and columns onto which a two-dimensional pattern of...
US-4,129,886 Digital remote control system
A method and system for remotely controlling the desired channel and volume selections of a television receiver and other like devices are disclosed herein. The...
US-4,129,885 Warm-up compensation system for picture tube
An "instant play" type device is described for quickly bringing the video display of a television receiver to normal luminance. The device develops a start-up...
US-4,129,884 Systems for supplying unmodulated baseband signals to television receivers
Unmodulated baseband video signals such as those of a TV game are supplied to a television receiver through a system which provides high isolation between the...
US-4,129,883 Apparatus for generating at least one moving object across a video display screen where wraparound of the...
In a video game where an object, such as a ship, moves across the screen and where wraparound exists when the object is displayed near the edge of the screen,...
US-4,129,882 Video coder for color signals
The luminance and two chrominance signals generated in a color video system are all translated into pulse code modulation signals by a plurality of ...
US-4,129,881 Heat sink cooled, semiconductor device assembly having liquid metal interface
An improved construction for a two or three terminal power semiconductive device provides efficient thermal and electrical conduction between the heat-generating...
US-4,129,880 Channel depletion boundary modulation magnetic field sensor
A high sensitivity, low noise, broad bandwidth channel conduction field sensor device is described. The conductive channel is configured to create an...
US-4,129,879 Vertical field effect transistor
An interdigitated field effect transistor for high power, high frequency applications has a vertical configuration with current flow essentially normal to the...
US-4,129,878 Multi-element avalanche photodiode having reduced electrical noise
Avalanche photodiodes include a substrate of a high resistivity material having at least a first surface. The substrate is of a particular conductivity type. In...
US-4,129,877 Photographic camera having electromagnetic operation control
A camera having an automatic diaphragm control range where the exposure value derived from an exposure control circuit is introduced to a diaphragm mechanism...
US-4,129,876 Apparatus for mounting a marker pen to a tubular recorder pen arm
Novel apparatus for mounting a pen to a tubular recorder pen arm includes an elongated resilient clip with two apertures formed therein that are axially...
US-4,129,875 Phase control for ink jet printer
An ink jet printer uses a detector circuit for detecting the relation between the generation of an ink droplet and the phase of a charging signal on the basis of...
US-4,129,874 Antenna pattern combiner
A three input device which accepts signals from a two port antenna system having opposing cardioid patterns, and a third input for a figure eight pattern that is...
US-4,129,873 Main lobe signal canceller in a null steering array antenna
In a null steering array antenna having a main antenna characterized by a radiation pattern with a relatively narrow main lobe and a plurality of secondary...
US-4,129,872 Microwave radiating element and antenna array including linear phase shift progression angular tilt
A slotted waveguide radiator for an antenna array is arranged to receive microwave energy inputs at either end for producing separate radiated beams and has...
US-4,129,871 Circularly polarized antenna using slotted cylinder and conductive rods
A circularly polarized antenna is provided using a slotted conductive mast. The slots extend about one-half wavelength long along the lengthwise axis of the mast...
US-4,129,870 Apparatus for synthesis of scanning beam
Radio frequency energy is rapidly switched from a transmitter in a repeating sequence of bursts of radio frequency energy to the different ones of a plurality of...
US-4,129,869 Automatical signalling apparatus
An apparatus for receiving a repetitive radar pulse wave signal, generating an ON-OFF signal upon reception of the radar pulse wave signal, and applying the...
US-4,129,868 Radar beacon apparatus
A radar beacon apparatus to be used in conjunction with a search radar during emergency rescue operations. The radar beacon apparatus includes a receiving unit...
US-4,129,867 Multi-pulse modulator for radar transponder
A radar transponder receiving regularly recurring pulses and providing selectively different delays for such pulses through the use of a single variable delay...
US-4,129,866 Method of scanning a radar antenna to effect improved radar operation
In one implementation of the inventive method an aircraft with an antenna mounted thereon is compelled to follow a sinuous path. The antenna normally provide...
US-4,129,865 Alarm circuit for a door lock
A latch tongue of a lock has a pair of contact points which are respectively connected to the gate and the cathode of a silicon controlled rectifier. When the...
US-4,129,864 High speed, wide dynamic range analog-to-digital conversion
A wide dynamic range, wide bandwidth, analog-to-digital conversion system d method. A plurality of overlapped analog-to-digital converters are utilized in...
US-4,129,863 Weighted capacitor analog/digital converting apparatus and method
An array of binary weighed capacitors, an additional capacitor having a capacitance value equivalent to that of the least of the binary weighted capacitors, a...
US-4,129,862 Apparatus for digitally encoding the angular position of a shaft with respect to a reference bearing
A high resolution digital angle encoder for determining the angular position of a first shaft with respect to a reference position. A signal generator operates...
US-4,129,861 Multiplex addressing of electrochromic displays
An electrochromic data display and imaging device which may be formed by sandwich arrangement of the imaging area and the counter-electrode area with a suitable...
US-4,129,860 Apparatus for forming a character by a matrix pattern of picture elements
An apparatus for forming a character in which picture elements as indication elements are formed in the shape of a matrix to create a character, such as a...
US-4,129,859 Raster scan type CRT display system having an image rolling function
A raster scan type CRT display system is disclosed which has a randomly accessable refresh memory. The display system comprises column and row start address...
US-4,129,858 Partitioned display control system
A system for controlling display of characters on partitioned regions of a CRT display surface comprising a refresh memory having a capacity enough to store...
US-4,129,857 Portable driver emergency device
A portable emergency signaling device includes a relatively lightweight hollow housing having an opening therein, a translucent message board slidably mounted on...
US-4,129,856 Filter system and method for intrusion alarm
An intrusion alarm of the kind in which a radiation field is transmitted in an area to be supervised; the reflected field is received and compared with the...
US-4,129,855 Animal identification system
A transceiver unit includes an oscillator which generates a pulse train to a transceiver counter that connects to a display. The pulse train is also coupled by...
US-4,129,854 Cell classification method
A method wherein at least one standard leukocyte is selected from within a blood film in advance, the values of adjustments are calculated on the basis of the...
US-4,129,853 Method and apparatus for producing compensated signals for individual light sensors arranged in a predetermined...
The output signal from each light sensor of a solid state array is compensated for variations due to dark scan noise levels, which are due to fixed pattern noise...
US-4,129,852 Slope detector for indicating flat tires and the like
A device for detecting a change in the slope of a member relative to a reference is disclosed. The device includes a slope sensor, mounted to the member,...
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