| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333138000 | Delay lines including a lumped parameter | 24 |
| 20090108957 | PHASE SHIFTER - A phase shifter includes a metal plate, a support portion, a slot, a coupling portion, and a ground portion. The phase shifter effectively improves signal coupling efficiency, and inhibits noise generated with the change of phase shift due to signal transmission. The phase shifter is advantageous in smaller volume, easy to assemble, and low cost. | 04-30-2009 |
| 20090195328 | DELAY LINE, SIGNAL DELAY METHOD, AND TEST SIGNAL GENERATING APPARATUS - Provided is a delay line that prevents reflection signals output from a test signal generator from being superimposed as noise. The delay line delays an electrical signal input into a signal line and outputs the thus delayed signal, and includes three or more passive elements that are provided on the signal line and delay the signal. Each section of the signal line between pairs of adjacent passive elements has a different electrical length. The reflection signals reflected by the passive elements are superimposed on each other at different phases. It is desirable that the reflection signals reflected by adjacent passive elements differ by 180 degrees. | 08-06-2009 |
| 20090201100 | INDUCTOR COMBINING PRIMARY AND SECONDARY COILS WITH PHASE SHIFTING - An inductor including a primary coil coaxially arranged and operated in parallel with isolated secondary coils each including at least one loop winding with two open-circuited ports. At least one phase shifting device is arranged between open-circuited ports of at least one secondary coil. A method to operate an inductor by combining primary and secondary coils with phase shifting devices to get a wide tuning range is also provided. The method includes the step of phase shifting open-circuited ports of at least one secondary coil. | 08-13-2009 |
| 20100039188 | SIGNAL TRANSMISSION METHOD, TRANSMISSION AND/OR RECEPTION CIRCUIT AND APPARATUS - A signal transmission method suppresses a reflected wave of a transmission signal on a transmission line, by obtaining level and time information related to the reflected wave by computing a correlation between a data pattern of the transmission signal and the reflected wave, and correcting a waveform of the transmission signal based on the level and time information related to the reflected wave. | 02-18-2010 |
| 333139000 | Variable parameter | 17 |
| 20090009264 | Delay Line - A delay line having a first delay circuit and a second delay circuit. The first delay circuit consists of a band-pass delay line having a first input terminal and an output terminal and other delay lines. The second delay circuit has a hybrid coupler equipped with a second input terminal, a first output terminal, a second output terminal, and an isolation terminal, a first reactance section connected with the first output terminal, and a second reactance section connected with the second output terminal. Furthermore, the output terminal of the first delay circuit is electrically connected with the second input terminal of the hybrid coupler of the second delay circuit. | 01-08-2009 |
| 20090051464 | Switch cicuit and phase shifter - A switch circuit in which the cut-off characteristic is improved over a wide range of frequencies in the microwave band includes a first field-effect transistor functioning as a switch element, a second field-effect transistor and an inductor. A serially connected circuit composed of the inductor and second field-effect transistor is connected in parallel with the first field-effect transistor across the source and drain thereof. The second field-effect transistor is turned on when the first field-effect transistor operates normally and is turned off when the first field-effect transistor is inspected. | 02-26-2009 |
| 20090160576 | Passive Fourier Transform Circuits and Butler Matrices - The coupling circuit described herein comprises passive analog components for coupling a transceiver to an antenna, such as an antenna array. The coupling circuit transforms an input signal into an appropriate format for each element of the antenna array. The coupling circuit comprises a coupling network having a plurality of inputs and a plurality of outputs. The inputs provide quadriphase versions of at least one input signal. In one embodiment, the coupling circuit performs a Discrete Fourier Transform (DFT) on the input signal. In another embodiment, the coupling circuit performs a Fast Fourier Transform (FFT) on the input signal. In still another embodiment, the FFT performed by the coupling circuit implements a Butler matrix. | 06-25-2009 |
| 20090174499 | Dielectric Waveguide Device, Phase Shifter, High Frequency Switch, and Attenuator Provided with Dielectric Waveguide Device, High Frequency Transmitter, High Frequency Receiver, High Frequency Transceiver, Radar Device, Array Antenna, and Method of Manufacturing Dielectric Waveguide Device - The invention relates to a small and low-voltage operable dielectric waveguide device. First and second electrode are embedded in a dielectric part and are formed to be thinner than a skin depth for a frequency of electromagnetic wave propagating along a first dielectric part included in the dielectric part. Thereby, even if the first and second electrodes are arranged to be in contact with the first dielectric part, the propagating electromagnetic wave can transmit the first and second electrodes, and therefore the electromagnetic wave can propagate without being cut off and there is no influence on waveguide modes of the electromagnetic wave. Further, in a state where a transmission loss due to the embedded of the electrode is suppressed, an electric field with large electric field strength can be applied to the first dielectric part by the first and second electrodes, and a small and low-voltage operable dielectric waveguide device can be achieved. | 07-09-2009 |
| 20100117758 | PHASE SHIFTER - Provided is a phase shifter that shifts a phase of an input signal based on switching between a low-pass filter and a high-pass filter, the phase shifter including: a first field-effect transistor that is coupled between an input terminal and an output terminal; a resonance circuit that resonates when the first field-effect transistor is in an on-state; an additional line that is coupled between the resonance circuit and a node that is included in a signal line, which is formed between the input and output terminals when the first field-effect transistor is in the on-state; and an inductor that is included in a part of the signal line and forms a low-pass filter together with at least the additional line, when the first field-effect transistor is in the on-state. | 05-13-2010 |
| 20110025431 | CONFIGURABLE ANTENNA INTERFACE - Techniques for interfacing a set of active elements with an antenna array. In one exemplary embodiment, the active elements include a plurality of signal paths, each signal path including a mixer coupled to a local oscillator (LO) signal having an adjustable phase. When the active elements are to be interfaced with an unbalanced antenna, the phase of the LO signal for each signal path coupled to the unbalanced antenna may be adjusted independently of the other signal paths. When the active elements are to be interfaced with a balanced antenna, the phases of the LO signals for the two signal paths coupled to the balanced antenna are adjusted to differ by π radians from each other. The techniques may be applied in either receiver or transmitter applications to provide a flexible interface between an antenna array and an integrated circuit (IC) without the use of baluns. | 02-03-2011 |
| 20110109404 | BALANCING CIRCUIT FOR A METAL DETECTOR - A balancing circuit for a metal detector. The metal detector includes an oscillating power source, a transmit coil connected to the oscillating power source, first and second receive coils inductively coupled to the transmit coil, a first amplitude balancing circuit connected to the first receive coil, and a first phase balancing circuit connected to the first receive coil. The first phase balancing circuit includes a capacitor and a variable resistor. | 05-12-2011 |
| 20110210806 | THIN FILM COMPOSITIONALLY STRATIFIED MULTI-LAYER HETEROSTRUCTURE FOR TEMPERATURE INSENSITIVE LOW DIELECTRIC LOSS AND ENHANCED TUNABLITY OTM COMMUNICATIONS DEVICES AND METHODS FOR FABRICATION THEREOF - A compositionally stratified multi-layer Ba | 09-01-2011 |
| 20110248797 | TUNABLE DELAY SYSTEM AND CORRESPONDING METHOD - The present invention relates to a tunable delay system and corresponding method for delaying a signal. The system includes an oscillator for providing a carrier. A first mixer modulates the signal with the carrier. The modulated signal is delayed in a metamaterial transmission line. Afterwards, a second mixer is used to separate the delayed signal from the carrier. The present invention also relates to using a metamaterial transmission line for delaying a modulated signal. | 10-13-2011 |
| 20110260808 | Electronic component and signal transmission method using the electronic component - Multiple transmission inductors are formed over a substrate. A signal input channel is coupled to the multiple transmission inductors and a same transmission signal is inputted to the multiple transmission inductors. A phase difference control section is provided in the signal input channel and controls a phase difference of the signal between the transmission inductors by a unit smaller than 180°. | 10-27-2011 |
| 20110298561 | LOW DISTORTION HIGH BANDWIDTH ADAPTIVE TRANSMISSION LINE FOR INTEGRATED PHOTONICS APPLICATIONS - A transmission line and method for implementing includes a plurality of segments forming an electrical path and a continuous optical path passing through the segments. Discrete inductors are formed between and connect adjacent segments. The inductors are formed in a plurality of metal layers of an integrated circuit to balance capacitance of an optical modulator which includes the transmission line to achieve a characteristic impedance for the transmission line. | 12-08-2011 |
| 20110304409 | PHASE SHIFTER - According to one embodiment, a phase shifter includes an input terminal; an output terminal; a first signal path; a second signal path; and a switching circuit for selectively connecting one of the first signal path and the second signal path to the input terminal and the output terminal. The first signal path includes a high-pass filter constituting a main path and a low-pass filter secondarily added in parallel to the high-pass filter and constituting a subsidiary path. The low-pass filter compensates for insertion loss caused by the high-pass filter in a frequency range in which a transmission phase difference is given to an RF signal passing through the high-pass filter. | 12-15-2011 |
| 20120223787 | ANALOG PHASE SHIFTER - A high-frequency phase shifter | 09-06-2012 |
| 20120286898 | PRECISION DELAY LINE INSTRUMENT - Precision delay line instruments and methods for manufacturing precision delay line instruments are described. Example precision delay line instruments may include a plurality of controller activatable delay loops of different delay length design values, and a controller configured to apply a selected delay setting by activating delay loops corresponding to the selected delay setting. The delay length design values may comprise a first set of delay lengths according to a first set of binary step values, and a second set of delay lengths according to a second set of binary step values that is offset from the first set of binary step values. Delay loops corresponding to selected delay settings may be identified in an operating data structure comprising best-fit matched combinations of delay loops that produce more accurate signal delays than one or more other combinations of delay loops. | 11-15-2012 |
| 20140152399 | DIGITALLY CONTROLLED PHASE SHIFTER - A digitally controlled phase shifter is disclosed. In an exemplary embodiment, an apparatus includes a first component connected between a first terminal and a node, a second component connected between a second terminal and the node, an impedance selectively connected between the first and second terminals by a first switch, and a second switch to connected between the node and a ground. The apparatus is configured to provide a first amount of phase shift when the first and second switches are in an open position, and a second amount of phase shift when the first and second switches are in a closed position. | 06-05-2014 |
| 20150365064 | VARIABLE DELAY LINE USING VARIABLE CAPACITORS IN A MAXIMALLY FLAT TIME DELAY FILTER - Systems and methods for a variable delay line using variable capacitors in a time delay filter are provided. In at least one embodiment, a delay line is configured to apply an adjustable time delay to an electromagnetic signal travelling through the delay line. The delay line comprises a filter that includes a first variable capacitor. Further, a capacitance of the first variable capacitor is configured to adjust the delay applied to the electromagnetic signal travelling through the delay line when varied. | 12-17-2015 |
| 20160087599 | SUPERCONDUCTING PHASE-SHIFT SYSTEM - One example includes a superconducting phase-shift system. The system includes an all-pass filter comprising at least one variable inductance element. The all-pass filter can be configured to receive an input signal and to provide the input signal as an output signal that is phase-shifted relative to the input signal based on a variable inductance provided by each of the at least one variable inductance element. The system can further include a phase controller configured to provide a phase-control current to control the variable inductance of the at least one variable inductance element based on a characteristic of the phase-control current. | 03-24-2016 |
| 333140000 | Physical structure | 3 |
| 20090051465 | DELAY LINE - In a band-pass filter of a delay line, an input terminal and a first resonator adjacent to the input terminal are coupled through a capacitor. The first resonator and a second resonator adjacent to the first resonator are coupled through a capacitor. The second resonator and a third resonator adjacent to the second resonator are coupled through an inductance. The third resonator and a fourth resonator adjacent to the third resonator are coupled through a capacitor. The fourth resonator and an output terminal adjacent to the fourth resonator are coupled through a capacitor. | 02-26-2009 |
| 20120075036 | COMMON MODE FILTER - There is provided a common mode filter capable of allowing an ultrahigh speed differential signal to transmit and hardly allowing a common mode noise to transmit, comprising: a lumped-constant differential delay line DL formed by arranging inductors Lo, being passive series elements, and capacitors Co, being passive parallel elements, in a ladder-shaped differential four terminal network composed of the passive series elements and the passive parallel elements arranged in the differential lines | 03-29-2012 |
| 20160173073 | Self-Cascadable Phase Shifter | 06-16-2016 |
