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| Patent # | Description |
|---|---|
| US-5,574,450 |
Synchronization adder circuit A synchronization adder circuit for digital data communication includes an A/D converter, a waveform-shaping circuit, a square circuit, a low-pass filter, and an... |
| US-5,574,449 |
Signal processing with hybrid variable-length and entropy encodidng A computer-implemented method for processing signals. According to a preferred embodiment, at least one dominant symbol of a set S comprising a plurality of... |
| US-5,574,448 |
Method and apparatus for encoding data with variable block lengths An encoding system uses a modified 8/9 rate modulation code to encode 8-bit data symbols into 9-bit cells in a conventional manner in accordance with the... |
| US-5,574,447 |
Method and apparatus for modifying characters entered on a computer
keyboard A keyboard for use with a computer has an array of keys including a space key and modifiable keys with apparatus for detecting when keys are pressed and... |
| US-5,574,446 |
Keyboard In a keyboard housing a housing top with a key pad and a housing bottom with support legs wherein the housing includes a support mat and a multi-layer contact... |
| US-5,574,445 |
Digital absolute position encoders A digital absolute position encoder is provided for determining absolute position of a first member with respect to a second member. The absolute position is... |
| US-5,574,444 |
Method and apparatus for decoding signals containing encoded information A signal converter for use with a moveable mechanical device includes input means for receiving a multi-bit digital signal indicative of a position of the... |
| US-5,574,443 |
Vehicle monitoring apparatus with broadly and reliably rearward viewing A vehicle monitoring apparatus includes a rear video camera mounted on a rear portion of a vehicle, a right video camera mounted on a right sideview mirror, a... |
| US-5,574,442 |
Inclination angle sensor First and second fixed electrodes are fixedly provided on a housing which is mounted on a surface whose inclination angle is to be detected. A rotatable... |
| US-5,574,441 |
Mass transit inductive data communication system A transmitter circuit and a receiver circuit couple inductively to allow data communication between a mass transit vehicle farebox and an external computer. Data... |
| US-5,574,440 |
RF switching with remote controllers dedicated to other devices Apparatus and method for switching between two input sources to a television receiver and/or video recording device. Switching may be carried out with a... |
| US-5,574,439 |
Paging receiver which displays canned and general messages A paging receiver having a conversion table for storing plural canned messages. In the receiver, when a space data is included in one of the first predetermined... |
| US-5,574,438 |
Method for transferring information, and in particular for performing a
logic operation, using electron beams In a method for transferring information in a form of electron beam, an electron beam detector detects the electron beam, and emission of the electron beam from... |
| US-5,574,437 |
Safety device for a printing machine This invention describes a monitoring device which monitors the safety of a printing machine. The printing machine has a drive, a control unit arranged upstream... |
| US-5,574,436 |
Smoke detector including an indicator for indicating a missing primary
power source which is powered by a... A smoke detector having an audible missing primary power source indicator, capable of indicating the absence of a primary power source powering the detector is... |
| US-5,574,435 |
Photoelectric type fire detector A photoelectric type fire detector includes self-testing capabilities. An upper level threshold limit and a lower level threshold define a predetermined range... |
| US-5,574,434 |
Alarm for heat multistaged detecting An alarm for multistaged heat detection is provided. The alarm provides a multi-point detecting structure by applying a digital operation unit. The alarm has... |
| US-5,574,433 |
Watch alarm A personal security alarm is combined with a wristwatch to be readily accessible on a user's wrist in an emergency situation. An exposed activation button has a... |
| US-5,574,432 |
Apparatus attachable to a shoe for deploying a rescue signal An apparatus attachable to a shoe for deploying a rescue signal includes a base attachable to a rear section of a conventional shoe. The base comprises strips... |
| US-5,574,431 |
Deactivateable security tag A security tag used with an electronic article surveillance system for detecting the presence of the tag within a surveilled area utilizing electromagnetic... |
| US-5,574,430 |
Monitoring sensor A monitoring sensor for articles susceptible to theft, comprising a sensor element for monitoring a proper contact of the sensor with the article and a... |
| US-5,574,429 |
Self-contained, programmable non-position-sensitive vibration detecting
alarm system A self contained, programmable alarm system is securely attached to an article and activates an alarm device when the article is moved. A programmable controller... |
| US-5,574,428 |
Message display unit for motor vehicles A display unit for presenting messages from a motor vehicle in which messages are selected for presentation based upon the number of interruptions in the power... |
| US-5,574,427 |
Method and apparatus for detecting air bag deployment An arrangement in the passenger compartment of a vehicle independent of a SIR system responds to the impulse noise of an inflating air bag as well as to vehicle... |
| US-5,574,426 |
Obstacle detection system for vehicles moving in reverse An electronic obstacle detection system for guiding and warning a motorist of obstacles in the detection area while backing-up. The main components of the system... |
| US-5,574,425 |
Anti-hijacking safety system for a vehicle and its driver An anti-hijacking security system for a vehicle that provides the owner with a period of time to reach safety before beginning a series of warning alarms to the... |
| US-5,574,424 |
Anti-car jacking/theft device An anti-car jacking/theft device for detecting an unauthorized person who is attempting to operate a vehicle and activating an alarm including a measurement... |
| US-5,574,423 |
Self-diagnostic circuit for emergency lamphead A self-diagnostic circuit for an emergency lamphead is disclosed that is effective during standby operation of the lamphead to indicate whether the lamphead is... |
| US-5,574,422 |
Multi-functional volleyball talking scorekeeper An automated scorekeeping device for volleyball or other games that includes an audible announcing system so that players are audibly informed of any changes in... |
| US-5,574,421 |
Snap disc thermostat and self calibrating assembly method A thermostat includes a case assembly with two terminals and movable contacts, one of which is on a resilient blade to open and close a circuit through the... |
| US-5,574,420 |
Low profile surface mounted magnetic devices and components therefor In accordance with the invention, a variety of magnetic devices can be made up of two or more low-profile surface components on a printed circuit board. For... |
| US-5,574,419 |
Unique electrical coil with tap A method for bringing a predetermined turn of a coil located inside the width of the coil and beneath at least one layer of the coil and a coil made by such method. |
| US-5,574,418 |
Three-phase autotransformer with a balancing function A three-phase autotransformer improving balance of three-phase voltages and currents. An iron core has three legs corresponding to the three phase. A common... |
| US-5,574,417 |
Open MRI magnet with homogeneous imaging volume An open magnetic resonance imaging (MRI) magnet having first and second spaced-apart superconductive coil assemblies each including a toroidal-shaped coil... |
| US-5,574,416 |
Electromagnetic relay An electromagnetic relay is composed of a coil wound around magnetic core, a U-shaped magnetic pole member connected to an end of the magnetic core and provides... |
| US-5,574,415 |
Method of fabricating microwave interconnects and packaging and the
interconnects and packaging A multilayer microwave structure for digital, power, RF and other interconnects wherein the metal (3, 7) and insulator (9) structure is built up in additive... |
| US-5,574,414 |
High-frequency ladder type piezoelectric filter and piezoelectric
resonator therefor A ladder type piezoelectric filter of the present invention is made usable in high frequency ranges by employing a piezoelectric resonator having the second... |
| US-5,574,413 |
Tunable filter having a capacitive circuit connected to ground A tunable filter (100) includes first and second resonant structures (140, 145) coupled by a capacitive coupler (120). The capacitive coupler (120) includes two... |
| US-5,574,412 |
Magic T and a comparator comprising a plurality of magic Ts A device for generating signals by bringing four input signals in the microwave range together, which signals are the sum and differences between various... |
| US-5,574,411 |
Lumped parameter balun A balun, which does not use magnetic coupling and is easily integrated in MMICs, is formed of lumped parameter inductive and capacitive circuit elements. In one... |
| US-5,574,410 |
Electronically tuned matching networks using adjustable inductance
elements and resonant tank circuits The disclosure discusses impedance matching circuits based on parallel-resonant L-C tank circuits, and describes a low-loss design for an adjustable inductance... |
| US-5,574,409 |
Apparatus and method for adjusting microwave BPSK modulator and mixer Microwave two-phase modulator and mixer each comprising a balance/unbalance transformer section to which a microwave signal is applied; a synthetic/branching... |
| US-5,574,408 |
Oscillator circuit having a memory that stores the characteristic
information of the individual oscillator crystal In an oscillator circuit (VCOS) that contains an oscillator crystal having characteristic information (ki) individually associated to the oscillator crystal, the... |
| US-5,574,407 |
Phase lock loop with error consistency detector A phase detector of a phase-lock-loop circuit measures a phase error between an output signal of an oscillator and a synchronizing signal. When a difference... |
| US-5,574,406 |
Phase lock loop with error measurement and correction in alternate
periods In a phase-lock-loop circuit a frequency detector measures a frequency error between an oscillatory signal and a synchronizing signal in alternate horizontal... |
| US-5,574,405 |
Low noise amplifier/mixer/frequency synthesizer circuit for an RF system A low noise amplifier (LNA)/mixer/frequency synthesizer circuit for the front end of a RF system. The LNA/mixer/frequency synthesizer circuit is fabricated as an... |
| US-5,574,404 |
Optical coupler galvanic isolation device, and modem incorporating it A galvanic isolation device having a light-emitting diode and a photo-transistor. A control circuit, which is coupled to the light-emitting diode and which... |
| US-5,574,403 |
Simple high speed precision transconductance amplifier circuits A simple high speed precision transconductance amplifier circuit having a low offset. The circuit uses as an input stage two substantially identical transistors... |
| US-5,574,402 |
Monolithic integrated circuit device having microwave power amplifier
including a matching circuit using... A microwave multi-stage power amplifier has matching circuits for input and output stages and one or more inter-stage matching circuits. The amplifier and a... |
| US-5,574,401 |
Large common mode input range CMOS amplifier A CMOS amplifier input stage including an NMOS differential pair connected in parallel with a PMOS differential pair. Each pair is connected to a tail-current... |
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