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Patent # Description
US-7,999,656 Electronic lock box with key presence sensing
An electronic lock box contains a secure compartment for storing keys to a structure. A sensing system allow the lock box to determine whether the contents of...
US-7,999,655 Communication system
A communication system that controls the disabling and enabling of a communication function in a communication portion of a portable device in accordance with...
US-7,999,654 Remote control method and system, vehicle with remote controllable function, and control server
A remote control method for remotely controlling the operation of equipment furnished in a vehicle in response to a remote control request generated by a remote...
US-7,999,653 Plant monitor-control apparatus
A plant monitor-control apparatus includes a control device which controls a to-be-controlled device of a plant, an operation/monitor device which delivers an...
US-7,999,652 Thick film resistor
In a flat plate type thick film resistor, an insulation performance is improved by excluding the nonuniformity of potential distribution on a wiring plane,...
US-7,999,651 Planar coil component
In a plane perpendicular to an axial direction of a winding drum, side legs face each other along an X-direction. A Y-direction is perpendicular to the...
US-7,999,650 Coil device
A problem is to provide a sheet-like or thin plate-like coil device that can guarantee a high power transmission efficiency, that has quite little magnetic...
US-7,999,649 Power transmission transformer for noncontact power transfer device
The present invention provides a power transmission transformer of which workability in implementing and reliability of connection are considered in a...
US-7,999,648 Wire-wound coil and method for manufacturing wire-wound coil
A wire-wound coil has a characteristic impedance that can be flexibly adjusted and can be prevented from varying undesirably. In the coil of the present...
US-7,999,647 Apparatus, system, and method for an integrated winding structure for a magnetic core
An apparatus, system, and method are disclosed for combining multiple windings on a magnetic core. An integrated winding structure has a winding base and...
US-7,999,646 Composite magnetic device
To provide a composite magnetic device having characteristics of two magnetic elements, being capable of reducing a manufacturing cost, and preferably enabling...
US-7,999,645 Magnetic holding apparatus for holding workpieces
An electro permanent magnetic apparatus with monolithic working face for holding workpieces magnetically or mechanically comprises a base plate and a ferrous...
US-7,999,644 Switch
A central magnet of a plurality of magnets arranged to be different in polarities is detected by two hall ICs; therefore, reduction in size can be achieved by...
US-7,999,643 Providing a common environment for multiple MEMS devices
The present invention relates to providing a uniform operating environment for each of multiple devices by providing a common environment to the devices. The...
US-7,999,642 Miniaturized switch device
The present invention provides a switch suitable for efficient microfabrication. The switch elements are disposed in several layers. Various embodiments provide...
US-7,999,641 Circuit breaker having reduced auxiliary trip requirements
A bimetal in a circuit breaker can deflect in a first direction or a second direction depending upon conditions. If the bimetal deflects in the second direction...
US-7,999,640 RF module
In a radio-frequency wave module including a transmission path based on a distributed parameter element, the transmission path being part of an input/output...
US-7,999,639 Waveguide structure comprised of grooves formed in resin and metal portions
A waveguide structure including a first member, made of metal, in a surface portion of which a first groove having a linear shape is formed; and a second...
US-7,999,638 Microwave circuit assembly comprising a microwave component suspended in a gas or vacuum region
A microwave circuit assembly includes a Liquid Crystalline Polymer (LCP) layer that supports at least one microwave circuit component. First and second ground...
US-7,999,637 Piezoelectric vibration piece and piezoelectric device
A piezoelectric vibration piece includes a base made of a piezoelectric material; a plurality of vibration arms which is integrally formed with the base and...
US-7,999,636 DMS-filter with connected resonators
A surface acoustic wave filter arrangement is described herein. The surface acoustic wave filter arrangement includes a first gate configured to operate...
US-7,999,635 Out-of plane MEMS resonator with static out-of-plane deflection
A residual stress gradient in a structural layer is employed to form a resonator deflected out of plane when at rest and the resulting strain gradient is...
US-7,999,634 Layered low-pass filter having a conducting portion that connects a grounding conductor layer to a grounding...
A layered low-pass filter includes: a layered substrate; an input terminal, an output terminal and a grounding terminal each disposed on a periphery of the...
US-7,999,633 EMI filter with an integrated structure of common-mode inductors and differential-mode capacitors realized by...
An integrated structure of common-mode inductors and differential-mode capacitors in an EMI filter realized using a flexible circuit board, including: a closed...
US-7,999,632 Branching filter and method for manufacturing the same
A branching filter that is capable of being reduced in size, particularly in height, has a configuration in which a transmitting filter chip and a receiving...
US-7,999,631 Anti-parallel PI PIN attenuator structure with improved CSO performance
An RF attenuator circuit includes an anti-parallel PI structure having an input shunt arm comprising a single PIN diode, and an output shunt arm comprising a...
US-7,999,630 Electronic circuit with an absorptive distributed limiting circuit
An electronic circuit comprising a power limiter circuit. The power limiter circuit comprises a plurality of cascaded transmission line sections, each...
US-7,999,629 IQ-modulation
The present disclosure relates to I/Q modulation circuits, devices, and methods.
US-7,999,628 Bias generation circuit and voltage controlled oscillator
This invention includes a bias origination section configured to originate an original bias voltage; a comparison section configured to compare the original...
US-7,999,627 Resonant circuit arrangement, method for operating said resonant circuit arrangement and method for the...
A resonant circuit arrangement is for generating an amplitude-shift-keyed and/or phase-shift-keyed signal. The resonant circuit arrangement includes a...
US-7,999,626 Physical section of atomic oscillator
A physical section of an atomic oscillator includes at least: a gas cell including a cylindrical portion and first and second windows respectively ...
US-7,999,625 Method and apparatus for calibrating oscillators
A method of calibrating oscillators is disclosed that includes searching, in an array storing an operational characteristic of the oscillator, for an index...
US-7,999,624 Radiation source
A source of radiation comprises a first low frequency oscillator 200 for providing a reference signal and a plurality of phase shifters 210a, 210b, 210c coupled...
US-7,999,623 Digital fractional-N phase lock loop and method thereof
A method for reducing a phase noise in a digital fractional-N phase lock loop (PLL) is disclosed. The method comprises: quantifying a time difference between a...
US-7,999,622 Adaptive phase noise cancellation for fractional-N phase locked loop
An embodiment of the invention is a circuit for adaptive phase noise cancellation for a fractional-N PLL. A preferred embodiment employs a split loop filter...
US-7,999,621 Cross-differential amplifier
A cross-differential amplifier is provided. The cross-differential amplifier includes an inductor connected to a direct current power source at a first...
US-7,999,620 Amplifier with dither
An analog amplifier includes at least one signal path. Each of the at least one signal path extends between an input and an output and includes a load device...
US-7,999,619 Class AB output stage
The present disclosure relates to a class AB amplifier output stage.
US-7,999,618 High bandwidth, rail-to-rail differential amplifier with output stage amplifier
An error amplifier expected to exhibit rail-to-rail operation, high bandwidth, and high slew rate, is described, the error amplifier comprising a first stage to...
US-7,999,617 Amplifier circuit
An amplifier circuit, comprising a differential input stage (M1, M2), two cross-coupled current mirrors (M3, M4; M5, M6) coupled to respective outputs of the...
US-7,999,616 Method for reducing offset voltage of operational amplifier and the circuit using the same
The invention provides an operational amplifier. In one embodiment, the operational amplifier includes an input stage circuit, a feedback circuit, a fixed stage...
US-7,999,615 Current canceling variable gain amplifier and transmitter using same
A current canceling CMOS variable gain amplifier includes a first leg and a second leg. The first leg has a first input line, a first output line, a first ON...
US-7,999,614 Power amplifying device with linear corrector
A power amplifying device with linear corrector utilizing the polynomial format to realize pre-distortion is disclosed. Its effective order estimation technique...
US-7,999,613 Method and apparatus for an improved power amplifier
An amplifier system is provided that has a first balun with an input and an output, and a second balun with an input and an output. A first set of amplifiers is...
US-7,999,612 Operational amplifier having DC offset cancellation capability
An operational amplifier includes an input stage for generating a first differential output signal pair according to a first differential input signal pair, an...
US-7,999,611 Differential amplifying device
A differential amplifying device includes a first differential amplifying unit that receives an input signal and a reference voltage. The first differential...
US-7,999,610 Class D amplifier capable of setting restraint power
A Class D amplifier capable of setting restraint power is provided, which comprises: an audio amplification unit, a pulse width modulation (PWM) unit, a first...
US-7,999,609 Managed wideband radio frequency distribution system with signal level enabling interface device and impedance...
A system and method for managing distribution of wideband radio frequency signals includes detecting an impedance signature of a device connected at the end of...
US-7,999,608 Integrated RF notch filters
Apparatus and methods for providing integrated RF notch filter subsystems having enhanced Q values are described. An integrated notch filter includes an LC...
US-7,999,607 Power switches having positive-channel high dielectric constant insulated gate field effect transistors
Power switch units for microelectronic devices are disclosed. In one aspect, a microelectronic device may include a functional circuit, and a power switch unit...
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