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| Patent # | Description |
|---|---|
| US-4,494,144 |
Reduced bandwidth video transmission A bandwidth reduced teleconferencing system achieving good video presence. The bandwidth reduction is accomplished by dividing the video picture of the camera... |
| US-4,494,143 |
Television descrambler with security plug having folded flexible printed
circuit board providing tier tag memory A descrambler or decoder for premium scrambled television signals compares the tier of the received signal with the contents of a memory associated with the... |
| US-4,494,142 |
Method of and apparatus for scrambled television program addressable
subscription selection and decoding This disclosure is concerned with an improved special program addressable subscription decoding technique in accordance with which ordinary program subscribing... |
| US-4,494,141 |
Dual purpose array processor for a CT scanner A CT scanner in which the amount of X-ray information acquired per unit time is substantially increased by using a continuous on X-ray source, and a sampled data... |
| US-4,494,140 |
T.V. apparatus for movement control A video processing system for reducing data content requirements along a transmission path. A movement processor which includes a framestore is capable of... |
| US-4,494,139 |
Automatic assembly system An automatic assembly system wherein parts supplied from a feeder are held by a holder and are automatically mounted onto predetermined positions of a circuit... |
| US-4,494,138 |
Segmented upstream management for cable television A segmented upstream management system for a bidirectional coaxial network of the type including a bidirectional trunk (14) having a plurality of bidirectional... |
| US-4,494,137 |
Integrated interface circuit between the RGB matrix and the video output
stages of color-television sets The interface circuit contains a single operational amplifier (OR, OG, OB) per chrominance channel, with a resistance network (WR, WG, WB) for white-level... |
| US-4,494,136 |
Semiconductor device having an amorphous metal layer contact A metallization system for high temperature use comprises a layer strongly bonded to the surface of a semiconductor substrate in the form of an alloy of a metal... |
| US-4,494,135 |
Programmable read only memory cell having an electrically destructible
programmation element integrally formed... A programmable read-only memory includes a number of programmable memory cells, each of which is formed in a thin layer of semiconductor material which extends... |
| US-4,494,134 |
High voltage semiconductor devices comprising integral JFET A P-N diode includes a P.sup.- substrate with a thin N.sup.- epitaxial layer thereon. A P.sup.+ isolation region surrounds the periphery of the N.sup.- ... |
| US-4,494,133 |
Infrared sensitive photo diode A photo diode formed by a substrate of Cd.sub.x Hg.sub.1-x Te covered with a layer of CdTe forming a p-n junction. The substrate may be p-type in which case the... |
| US-4,494,132 |
Semiconductor opto-electronic switch An opto-electronic switch component which comprises two regions of good conductivity separated by a gap on a normally non-conductive substrate. When the gap is... |
| US-4,494,131 |
Josephson junction element and method of making the same A Josephson junction element which comprises a substrate, a first strip-like superconductor thin film layer arranged on said substrate, a second strip-like... |
| US-4,494,130 |
Laser printer A laser printer including a photosensitive belt driven for travel while having its position of travel regulated by one drive roller and at least one follower... |
| US-4,494,129 |
Electrostatic printing apparatus Apparatus for processing a digital raster scan signal for use by an electrostatic printer having a print cartridge with an ion deposition matrix composed of... |
| US-4,494,128 |
Gray scale printing with ink jets An ink jet system using a single transducer chamber is disclosed which can produce a wide variation in visual print density (gray scale) without a reduction in... |
| US-4,494,127 |
Apparatus and method for recording both machine-readable and printed
information A device for recording both machine readable information and visible information on a recording member such as a time-card or ledger card or pass-book with a... |
| US-4,494,126 |
Thermal recording head drive device A thermal recording head drive device in which a uniform recording density is provided independent of temperature changes in the device. An analog shift register... |
| US-4,494,125 |
Differential-permeability field-concentrating magnetic read/write head A magnetic-image read/write head including inner and outer, substantially co-planar, symmetrically arranged pole portions. In one embodiment, the head is... |
| US-4,494,124 |
Ink jet printer An ink jet printer having an ink supply tank and a constant volume fluid pump which pumps ink through a supply line to a print head and, during a start up... |
| US-4,494,123 |
Self-erecting composite antenna structure A composite antenna element formed of a plurality of high modulus, high strength, low density, unidirectional graphite fibers bonded together by a flexible... |
| US-4,494,122 |
Antenna apparatus capable of resonating at two different frequencies An antenna is provided which exhibits an overall shortened length with respect to the length of the conventional sleeve dipole type antenna. The antenna includes... |
| US-4,494,121 |
Direction finding antenna A direction finding antenna for use in missiles and the like may include arrays of log periodic monopole antennas. The antennas may be constructed of thin,... |
| US-4,494,120 |
Two element low profile antenna An antenna is provided which exhibits a low profile. The antenna includes a counterpoise of electrically conductive material and a passive element oriented... |
| US-4,494,119 |
Distress radiolocation method and system A dedicated distress radiolocation system combines direction-finding techniques with calculations based on signal strength to precisely locate a distress... |
| US-4,494,118 |
Direction finding interferometer internal calibration system An internal calibration system is provided for use with a direction finding interferometer which comprises a plurality of receiving antenna elements (A.sub.1,... |
| US-4,494,117 |
Dual sense, circularly polarized helical antenna A helical antenna for radiating waves in both orthogonal states of circular olarization that is fed at the base by a first feed and at the tip by a second feed.... |
| US-4,494,116 |
Apparatus for visually indicating a current travel route of a vehicle A visual travel route indicating apparatus, for use in an automotive vehicle or the like, including a distance sensor for detecting a current distance of travel... |
| US-4,494,115 |
Controller for a locked carrier distributed multiplexed telemetry system A controller for a locked carrier distributed multiplexed telemetry system hich uses on-off switching of a d.c. power supply and a pilot signal generator at a... |
| US-4,494,114 |
Security arrangement for and method of rendering
microprocessor-controlled electronic equipment inoperative... A lock-out security arrangement for and method of maintaining microprocessor-controlled electronic equipment normally operational until the occurrence of a... |
| US-4,494,113 |
Method and apparatus for self-control in distributed priority collision Method and apparatus for controlling collision in a system having a common unit shared by a plurality of devices are disclosed. More particularly, method and... |
| US-4,494,112 |
Ultrasensitive apparatus and monitoring method for detecting change in
fluid flow Transient change in heat flux due to ultrasmall variation in flow conditions (say from NO-FLOW-to-FLOW) within a series of flowlines to pinpoint sources of plant... |
| US-4,494,111 |
Frequency agile security apparatus A cable TV security system utilizes three radio frequency signals as three data communication channels: one downstream channel and two upstream channels. A... |
| US-4,494,110 |
Keyboard modules for use in data terminals A keyboard has tactile-feel keys (64-70) each with a grounded terminal (78) under an insulated touchable terminal (88) supplied with a square wave ... |
| US-4,494,109 |
Noncontacting keyboard employing a transformer element Noncontacting transformer switches are interconnected into keyboard networks which include insertable magnetic core, shorted turn or combination actuators. In a... |
| US-4,494,108 |
Adaptive source modeling for data file compression within bounded memory A two-stage single pass adaptive modeling method and means for a finite alphabet first order MARKOV symbol source where the model is used to control an encoder... |
| US-4,494,107 |
Digital to analog converter A compensated differential amplifier connected to multiple analog ladder networks at each input which ladder networks are scaled with respect to each other and... |
| US-4,494,106 |
Pressure monitor A tire pressure monitor which includes a signal generating section and a signal processing section. The signal generating section has a transducer which produces... |
| US-4,494,105 |
Touch-controlled circuit apparatus for voltage selection A touch-controlled apparatus of the type in which two parts of a circuit component are selectively brought into contact, which includes plural circuit... |
| US-4,494,104 |
Thermal Fuse A fuse for responding to external temperatures to interrupt an electrical circuit, for example for interrupting a telephone battery feed in response to the... |
| US-4,494,103 |
High-speed, multi-break electrical switch An electrical switch includes an alternating series of first and second switch cells. Each first cell includes a first conductive member with a first bore and a... |
| US-4,494,102 |
Transformer core and method and apparatus for forming same An improved magnetic core for an electrical transformer, and a method and apparatus for forming the core, are disclosed wherein the corners of core windows are... |
| US-4,494,101 |
Electrical winding on fixed-mount laminated iron core subject to shaking The laminations of a stack that form an iron core for a magneto armature are provided with wart-like deformations produced by through-stamping, so that pressing... |
| US-4,494,100 |
Planar inductors A planar inductance element includes a generally flat substrate of electrically insulating material. First and second substantially flat spiral coils, having... |
| US-4,494,099 |
High-frequency coil structure A high-frequency coil has a coil winding provided on a coil form whose axis extends perpendicularly to a base. The base has wire-shaped connection contacts which... |
| US-4,494,098 |
Solenoid device A solenoid device adapted for use with an automobile door locking device, for example, comprises a shaft, two magnetic cores, a permanent magnet sandwiched... |
| US-4,494,097 |
Electromagnetic deflection unit An electromagnetic deflection unit for a television display tube has two deflection coils disposed coaxially one within the other and each comprising two... |
| US-4,494,096 |
Latching solenoid A latching solenoid has a first inductive coil for selectively positioning a member at a preselected location where it is locked against longitudinal movement by... |
| US-4,494,095 |
High frequency circuit shielding structure having tuning coils double
shielded An assembly structure of a high frequency circuit apparatus including at least one first high frequency circuit block; a metallic chassis on which said first... |
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