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| Patent # | Description |
|---|---|
| US-4,255,766 |
Facsimile signal superposing system A facsimile signal superposing system for an analog type modulated facsimile signal has been found. The present superposing system has a digital memory storing... |
| US-4,255,765 |
Theodolite for tracking and measuring a flying object with a TV camera
arranged at a telescope A theodolite for target tracking and target measuring with a telescope composed of a mirror objective and a collimator. The real image produced by the mirror... |
| US-4,255,764 |
Film scanner employing optical splice technique for frame-rate conversion A frame-rate converting film scanner suitable for use with a solid-state line sensing array for producing a television signal from motion picture film is... |
| US-4,255,763 |
Technique for reducing transmission error propagation in an adaptively
predicted DPCM video encoder Propagation of transmission errors in adaptively predicted, DPCM encoded video signals is reduced by including a leak circuit (114) in the encoder (FIG. 1). The... |
| US-4,255,762 |
Apparatus for inspecting pipes in a plant Apparatus for inspecting pipes in a plant, comprising an elongate inspection head portion which is provided with an optical system for receiving an inspection... |
| US-4,255,761 |
Apparatus for mixing image signals to obtain a printing master In an apparatus and a process for obtaining image signals, and electronically mixing the image signals to generate mixed signals, the steps include modulating... |
| US-4,255,760 |
Multiple, superposed-channel color image sensor A multiple, superposed-channel, solid-state, color image sensor of the "parallel transfer" type includes a plurality of superposed generally "ladder shaped"... |
| US-4,255,759 |
Color television receiver AFPC circuit A color television receiver includes an automatic phase control circuit (which will be hereinafter referred to simply as an APC circuit) with a voltage... |
| US-4,255,758 |
Self-adjusting bell filter circuit for use in SECAM coders A method and circuit for adjusting the frequency response of a bell filter in a SECAM camera samples the output signal from the filter. A frequency control... |
| US-4,255,757 |
High reverse voltage semiconductor device with fast recovery time with
central depression A high voltage, fast recovery time P-I-N diode is described in which the wafer used to form the device has a central depression. The central depression causes... |
| US-4,255,756 |
Substrate bias generator The disposed substrate bias generator comprises a capacitor including an electrically insulating film sandwiched between two electrodes one of which is disposed... |
| US-4,255,755 |
Heterostructure semiconductor device having a top layer etched to form a
groove to enable electrical contact... A semiconductor laser is made by sequential liquid-phase epitaxial growths on an n-type GaAs substrate, thereby sequentially forming a first layer of n-type GaAlAs, a... |
| US-4,255,754 |
Differential fiber optic sensing method and apparatus for ink jet
recorders Optical fibers are used to sense fluid ink drops along the x, y and z axis of an orthogonal coordinate system. A drop sensing zone is defined in the narrow space... |
| US-4,255,753 |
Antenna construction for reducing side lobes of the radiation pattern A construction for reducing the side lobe energy emitted from antennas, particularly horn antennas, and thereby attenuating unwanted coupling with adjacent... |
| US-4,255,752 |
Lightweight composite slotted-waveguide antenna and method of manufacture A fiber reinforced composite structure for slotted type waveguide antenna, comprising at least one layer of conductive material applied over a mandrel by a known... |
| US-4,255,751 |
Feed mechanism for a geodesic lens A feed system for a geodesic Luneberg lens antenna system is disclosed, in which sequential cyclical scanning of a plurality of feed sectors of the lens from one... |
| US-4,255,750 |
Multiple cell electromagnetic radiation test system A multiple cell electromagnetic radiation testing system includes a plurality of isolated strip transmission line cells coupled in electrical series and having... |
| US-4,255,749 |
Apparatus for converting code signal to visual display Apparatus for converting a train of code signals representative of a letter, number, or symbol to a visual display of such corresponding letter, number, or... |
| US-4,255,748 |
Bus fault detector The present invention comprises computer system equipment useful for detection of faults in data transmission within a computer system. Fault detection is... |
| US-4,255,747 |
Sump pump level warning device A battery operated sump well fluid level warning device is provided which is secured to the discharge line extending out of the sump well from a submersible sump... |
| US-4,255,746 |
Emergency lighting and fire detector system A home safety unit having an emergency light system for providing light in the event of a power failure or the detection of a fire condition, and a fire... |
| US-4,255,745 |
Apparatus for audible altering of enclosure opening A portable, miniaturized, self-contained audible alerting device is disclosed. The device is housed in a small case adapted to be positioned in a darkened... |
| US-4,255,744 |
Highway crossing bell apparatus The bell clapper arm is mounted on the rotatable armature of a rotary solenoid so as to be moved through an arc, to strike the bell gong with a hammer at its... |
| US-4,255,743 |
Method for digital interpolation of a period of a three-phase analog
signal The value of three components of an analog signal are compared with zero and in two's compared with one another. Each possible combination of the comparison... |
| US-4,255,742 |
Data communication code An encoder of a transmitter converts digital data or analog signal information into an encoded sequence or waveform required by a communication channel. If a... |
| US-4,255,741 |
Communication module A loop circuit interface module enabling a plurality of data terminals remote from each other and from a central controller to communicate with each other and... |
| US-4,255,740 |
Systems for comparing and ranking a plurality of signal inputs A system which selects the highest quality signal from similar signals includes a signal quality detector for each of the signals and a comparator. Each detector... |
| US-4,255,739 |
Device for the indication of different operating conditions of motor
vehicles Device for the indication of different operating conditions of motor vehicles, particularly automobiles, with a number of light sources which are coordinated to... |
| US-4,255,738 |
Device for detecting unwanted signal combinations of two signal lamps in
traffic lights Apparatus for preventing the simultaneous energization of a pair of traffic lights includes a detection device for monitoring any leakage current in the cables... |
| US-4,255,737 |
Traffic signal with time duration indicator and mechanical
synchronization A traffic signal having a four sided housing, each side of which contains red and green areas which can be illuminated. Furthermore, each side contains a... |
| US-4,255,736 |
Thermal protective switch A thermally sensitive switch is provided with two parallel lead wires or conductive members which are confined within a two section insulated housing. Electrical... |
| US-4,255,735 |
Precision injection-molded coil form A high-precision injection-molded form for an inductance coil comprises a cylindrical core formed of a solid mass of plastic or similar material which has a... |
| US-4,255,734 |
Transformer with tapped subwindings A device for transformation of alternating current-voltage which includes a core, a primary winding subassembly and a second winding subassembly. One or both of... |
| US-4,255,733 |
Latching switch relay A latching switch relay has a selector hub which moves a contact carrying rotary switch shaft along with its contacts from a first to a second position. The... |
| US-4,255,732 |
Current limiting circuit breaker A molded case current limiting circuit interrupter includes a pair of pivoting contact arms each supporting a contact and being connected to wiring terminals... |
| US-4,255,731 |
Intense electron beam microwave switch Microwave energy is coupled into an elongate waveguide having a rectangular ain cavity with a lateral branch forming a T section. An intense beam of electrons is... |
| US-4,255,730 |
Microwave integrated circuit device A microwave integrated circuit device for reception wherein a microwave integrated circuit substrate is mounted on a short-circuited plane of an inner surface of... |
| US-4,255,729 |
High frequency filter A high frequency filter for frequencies higher than the VHF band comprising at least one resonator has been found. Each resonator comprises a conductive housing,... |
| US-4,255,728 |
Parallel resonant electric circuit A parallel resonant electric circuit comprising a first and second concentric electrical coil wound in the same directions with the convolutions of the one coil... |
| US-4,255,727 |
Electromechanical filters In an electromechanical filter, poles are obtained by interconnecting an electrical reactance between the input and output of the filter. It is shown that this... |
| US-4,255,726 |
Surface acoustic wave filter A surface acoustic wave filter having transmitting and receiving transducers, coupling transducers, as well as reflecting transducers which are arrayed on a... |
| US-4,255,725 |
Differential device using charge transfer devices, a filter and delay
line comprising this device A differential charge-transfer device for transversal filtering or delay line applications. It comprises: two charge-transfer channels which respectively receive... |
| US-4,255,724 |
Distortion-corrector for microwave tubes A distortion-corrector which comprises a filter of the low-pass type, of the .pi. or T configuration, and two diodes, in parallel opposition, disposed between... |
| US-4,255,723 |
Amplitude control inverter circuit for electronic device An amplitude control inverter circuit for an electronic device having a power source and a signal source. A complementary pair of field effect transistors having... |
| US-4,255,722 |
Voltage controlled multivibrator having variable frequency and duty cycle A voltage controlled oscillator (VCO) to produce a variable frequency and duty cycle output proportional to the applied (input) voltage. The VCO comprises RC... |
| US-4,255,721 |
Temperature compensated integratable RC oscillator A high stability integratable resistance-capacitance oscillator is disclosed which is capable of operating at a stable frequency regardless of changes in ambient... |
| US-4,255,720 |
Variable diameter segmented hollow cathode laser device A laser device for generating multiline emissions when appropriately energized. The device consists of two major components, an anode-cathode assembly and, in a... |
| US-4,255,719 |
Maintenance of optimal orientation in F.sub.2.sup.+ color center lasers Intense optical pumping of the 1S.sigma..sub.g .fwdarw.2P.sigma..sub.u transition of the F.sub.2.sup.+ color center as required for laser action produces a slow... |
| US-4,255,718 |
Transversely pumped dye laser having improved conversion efficiency In a transversely pumped dye laser, such as a laser oscillator or laser amplifier, the optical pumping radiation is directed into the dye laser gain medium with... |
| US-4,255,717 |
Monolithic multi-emitting laser device A monolithic laser device produces a plurality of spatially displaced emitting cavities in an active layer of a semiconductor body acting as a waveguide for... |
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