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| Patent # | Description |
|---|---|
| US-5,781,092 |
Ignition coil for an internal combustion engine The invention is directed to an ignition coil for an internal combustion engine which includes a first case which has at least an opening portion at its bottom,... |
| US-5,781,091 |
Electronic inductive device and method for manufacturing Inductive electrical components fabricated by PWB techniques of ferromagnetic core or cores are embedded in an insulating board provided with conductive layers.... |
| US-5,781,090 |
Latching electromagnet A latching electromagnet is provided. The electromagnet (300) includes a core (305) having a pole face, a coil of windings (325), and an armature (330).... |
| US-5,781,089 |
Electromagnetic relay An electromagnetic relay includes a winding, a magnetic core disposed within the winding, and an armature mounted for movement at a first end of the winding. At... |
| US-5,781,088 |
Lumped-constant resonator structure and method for adjusting it The invention relates to a lumped-constant resonator construction, and a method for adjusting a lumped-constant resonator construction. The lumped-constant... |
| US-5,781,087 |
Low cost rectangular waveguide rotary joint having low friction spacer
system A rectangular waveguide rotary joint that allows limited mechanical rotation of two rectangular waveguides around a common longitudinal axis. The joint comprises... |
| US-5,781,086 |
NRD guide circuit, radar module and radar apparatus Dielectric circuit components such as a dielectric strip, dielectric blocks and dielectric ring inserted between conductive plates are molded from a ... |
| US-5,781,085 |
Polarity reversal network A polarity reversal network is provided for a microwave filter that includes a plurality of resonators. The polarity reversal network has a magnetic coupling... |
| US-5,781,084 |
Microwave reflection filter including a ladder network of resonators
having progressively smaller Q values A variable Q reflection mode filter has a three-port circulator, one port of which is terminated by a one-port filter. The filter includes a ladder network of... |
| US-5,781,083 |
Surface wave resonator having a plurality of resonance frequencies A free edge reflective-type surface wave resonator for reflecting SH-type surface waves between two confronting free edges of a piezoelectric substrate includes... |
| US-5,781,082 |
Power supply filter for preventing noise signal from entering power
supply circuit In an R-C filter for preventing a noise signal from entering a power supply system through its output circuit, a circuit component acting as a resistive element... |
| US-5,781,081 |
LC-type dielectric filter having an inductor on the outermost layer and
frequency adjusting method therefor In an LC-type dielectric filter, an inductor is formed on the uppermost or outermost insulation or dielectric layer and electrically connected at the opposite... |
| US-5,781,080 |
Dielectric duplexer Dielectric resonators 2a, 2b and 2c which compose a transmitting filter are stored in a conductive casing in one line. Dielectric resonators 3a, 3b and 3c which... |
| US-5,781,079 |
Magnetostatic wave device A compact, low-cost magnetostatic wave device which can serve as an S/N enhancer or a filter. The magnetostatic wave device includes a ferromagnetic base; at... |
| US-5,781,078 |
Filter enhancement using input-to-output ground isolation and shielding A method and apparatus for filter enhancement in an electrical system (8) is provided. The electrical system (8) includes an input circuit (10) having a filter... |
| US-5,781,077 |
Reducing transformer interwinding capacitance A transformer. According to one embodiment, the planar transformer has a first winding, a first conducting surface adjacent to the first winding, a second... |
| US-5,781,076 |
Digital quadrature amplitude modulators A digital modulator and digital demodulator with quadrature amplitude modulation (QAM) schemes, which are designed to modulate or demodulate RZ-coded baseband... |
| US-5,781,075 |
Temperature sensing apparatus A temperature sensing apparatus (200), includes a temperature sensor (220), a current source (203), and a temperature independent voltage source (240, 250). The... |
| US-5,781,074 |
Low electromagnetic interference clock oscillator module A low noise clock oscillator in modular form to plug into a standard 14 or 8 pin DIP clock oscillator socket on the motherboard of a host device to retrofit the... |
| US-5,781,073 |
Temperature compensation method for an output frequency drift of an
oscillator A temperature compensation apparatus for an oscillator includes an oscillator having an output for generating a clock signal with a frequency identical to the... |
| US-5,781,072 |
Dual push-pull amplifier circuit and method An amplifier circuit (30) has the capability for driving a large number of loads while still maintaining the desirable gain response. The amplifier circuit (30)... |
| US-5,781,071 |
Transformers and amplifiers A transformer and an amplifier exhibiting a small lowering in self resonance frequency and having a large mutual inductance. By forming a first flat coil 12A,... |
| US-5,781,069 |
Pre-post distortion amplifier A pre-post distortion amplifier is disclosed. The device comprises the four-cascade amplifier comprising two driver amplifiers and two power amplifiers. The... |
| US-5,781,068 |
Transadmittance amplifier for a motor A transadmittance amplifier provides an output current that is proportional to an input voltage level. The output current drives a coil of an electric motor (the... |
| US-5,781,067 |
Electronic inductive switching power amplifier An electronic inductive switching power amplifier designed for but not limited to amplification of electrical audio signals consists of a power conversion... |
| US-5,781,066 |
Pulse waveform generator A waveform generator is provided having a power divider for dividing power from a signal source fed thereto to a plurality of output terminals. A plurality of... |
| US-5,781,065 |
Circuit for causing FPLL to lock in desired phase A biphase stable FPLL includes a lock switch, operated in response to a frequency lock condition, that forces a predetermined voltage on the input of the third... |
| US-5,781,064 |
Digital filtering system for filtering digital outputs of a four level
FSK demodulator A digital filtering system for filtering a first and a second digital signals inputted from a FSK (frequency-shift-keying) demodulator to generate a first and a... |
| US-5,781,063 |
Continuous-time adaptive learning circuit An integrator-multiplier-integrator circuit scheme usable in transverse fers, a transverse filter employing such a circuit, and a method for using each. The... |
| US-5,781,062 |
Semiconductor integrated circuit A logic circuit (L.sub.i) is connected between a virtual power supply line (VDDV) connected to an actual power supply (VDD) through a PMOS transistor (Q1) and a... |
| US-5,781,061 |
Current mirror circuit and signal processing circuit having improved
resistance to current output terminal... A current mirror circuit includes a current input terminal; a first FET and a second FET, each having a gate terminal, a drain terminal, and a source terminal,... |
| US-5,781,060 |
Semiconductor integrated circuit device having a variable current source
controlled by a shift register A semiconductor integrated circuit device includes a variable current source 2. This device further includes a control circuit 1, 10 causing the current source... |
| US-5,781,059 |
Driver circuit for semiconductor test system A driver circuit for a semiconductor test system generates test signals having predetermined voltage levels without being affected by stray capacitances. The... |
| US-5,781,058 |
Totem pole driver with cross conduction protection and default low
impedance state output A totem pole driver with cross conductive protection and default low impedance state output employs a totem pole output formed by top and bottom output... |
| US-5,781,056 |
Variable delay circuit An object of the invention is to provide a variable delay circuit having a desired optional resolution. A variable delay section 24 is provided with paths A and B... |
| US-5,781,055 |
Apparatus and method for instantaneous stretching of clock signals in a
delay-locked loop multi-phase clock... An apparatus and method for instantaneously stretching multi-phase clock signals includes a delay line to generate a plurality of multi-phase clock signals. An... |
| US-5,781,054 |
Digital phase correcting apparatus The present invention relates to a digital phase correcting apparatus, including a phase comparator (100), a loop filter (110), and a digital controlled... |
| US-5,781,053 |
Positive edge triggered flip flop A positive edge triggered flip flop which includes a master stage and a slave stage. The master stage includes an inverter that receives a clock input (C), and a... |
| US-5,781,052 |
Static latches with one-phase control signal A status latch with one-phase control signal is constructed only from purely static gates, thus has great security against interference in the stationary state,... |
| US-5,781,051 |
Power-up detector for low power systems A power-up reset detector circuit is described which uses the threshold voltages of NMOS and PMOS transistors to detect the power-up of integrated circuits, and... |
| US-5,781,050 |
Open drain output driver having digital slew rate control An open drain driver circuit includes first and second NMOS driver transistors, a delay circuit, an OR gate and an AND gate. Each NMOS driver transistor has a... |
| US-5,781,049 |
Method of transmitting clock signal and device employing the same A frequency divider 1 on the transmitting side divides the frequency of a clock signal of period T by 8, generates a pulse signal P2 of pulse width 4T and duty... |
| US-5,781,048 |
Synchronous circuit capable of properly removing in-phase noise The synchronous circuit has: a phase comparator for comparing a feedback signal with an input reference signal to detect a phase difference and outputting a... |
| US-5,781,047 |
Ignition coil driver module The ignition coil driver module of the present invention includes a control integrated circuit and a high current load driver integrated circuit housed within a... |
| US-5,781,046 |
Push-and-pull driver circuit for driving an H-bridge coupled to a
two-terminal inductive load A write driver for a two-terminal inductive load comprises an H-bridge switching circuit and a push-pull driver circuit. The H-bridge switching circuit responds... |
| US-5,781,045 |
Method and apparatus for predriving a driver circuit for a relatively
high current load A predriver circuit for current switching, di/dt, noise control for high current load devices is disclosed. Parallel weak pull up and pull down circuit paths are... |
| US-5,781,044 |
Delta-sigma fractional-N frequency synthesizer and frequency
discriminator suitable for use therein A fractional-N frequency synthesizer comprises a voltage-controlled oscillator (107) for generating an output signal (F.sub.o) in response to a control voltage... |
| US-5,781,043 |
Direct current sum bandgap voltage comparator A direct current sum bandgap voltage comparator for detecting voltage changes in a power supply. The direct current sum bandgap voltage comparator includes a... |
| US-5,781,042 |
Modal transition imbalance detector A magnetoresistive sensor and preamplifier system has an excess differential imbalance detector, (a) for detecting magnitude differences between a pair of... |
| US-5,781,041 |
Sense amplifier with low power in a semiconductor device The present invention provides a sense amplifier in a semiconductor device, comprising a detector for enabling the sense amplifier in response to the output... |
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