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Level Shift patents



      

This page is updated frequently with new Level Shift-related patent applications.




Date/App# patent app List of recent Level Shift-related patents
02/04/16
20160036443 
 Fast low power level shifters patent thumbnailFast low power level shifters
In one embodiment, a method for increasing speed of a differential input pair, the method comprises applying a first boost current to a first input of the differential input pair during a transition of a first signal applied to the first input; storing the first boost current; ending the application of the first boost current in response to the stored first boost current exceeding a first threshold; applying a second boost current to a second input of the differential input pair during a transition of a second signal applied to the second input; storing the second boost current; and ending the application of the second boost current in response to the stored second boost current exceeding a second threshold.. .
Qualcomm Incorporated


02/04/16
20160036442 
 Level shifting apparatus and  using the same patent thumbnailLevel shifting apparatus and using the same
A level shifting apparatus includes a first capacitor, a first side of the first capacitor configured to receive a first voltage. The level shifting apparatus further includes an edge detector configured to receive the first voltage.
Taiwan Semiconductor Manufacturing Company, Ltd.


02/04/16
20160036441 
 Output signal generation circuitry for converting an input signal from a source voltage domain into an output signal for a destination voltage domain patent thumbnailOutput signal generation circuitry for converting an input signal from a source voltage domain into an output signal for a destination voltage domain
Output signal generation circuitry 100 may be used for converting an input signal 110 from a source voltage domain to an output signal for a destination voltage domain, the destination voltage domain operating from a supply voltage that exceeds a stressing threshold of components within the output signal generation circuitry. The output signal generation circuitry may comprise level shifting circuitry 160 operating from the supply voltage, which is configured to generate at an output node 130 the output signal for the destination voltage domain in dependence on the input signal.
Arm Limited


02/04/16
20160036315 
 Drive circuit and semiconductor device patent thumbnailDrive circuit and semiconductor device
Malfunction can be reliably avoided even when a signal that drives a high side power device is not normally transmitted in a level shift circuit. In a drive circuit, a pulse generator circuit generates a set signal and reset signal that causes a high side power device to be turned on or off.
Fuji Electric Co., Ltd.


02/04/16
20160035309 
 Driver circuit incorporating level shift circuit patent thumbnailDriver circuit incorporating level shift circuit
A level shift circuit includes first and second nmos transistors that are coupled between a first supply terminal, and first and second output nodes, respectively, and have respective control terminals receiving input signals of a low amplitude, third and fourth pmos transistors which are coupled between a second supply terminal, and the first and second output nodes outputting signals of high amplitude, respectively, a fifth pmos transistor which is coupled between a gate of the third pmos transistor and the second output node, and has a gate coupled to the first output node, a sixth pmos transistor which is coupled between a gate of the fourth pmos transistor and the first output node, and has a gate coupled to the second output node, and first and second load elements which are coupled between the second supply terminal and the gates of the third and fourth pmos transistors, respectively.. .
Renesas Electronics Corporation


02/04/16
20160035300 
 Level shift circuit, gate driving circuit and display apparatus patent thumbnailLevel shift circuit, gate driving circuit and display apparatus
Provided are a level shift circuit, a gate driving circuit and a display apparatus. The level shift circuit comprises a third transistor (m3), a fourth transistor (m4), a fifth transistor (m5), a sixth transistor (m6) and a seventh transistor (m0), the sources of the which transistors are connected to a dc power source (vdd) respectively, and the gates of which transistors are connected to an offset voltage terminal (vbias) respectively, wherein the drains of the third transistor (m3) and the fifth transistor (m5) are connected as a first output terminal (out1), the drains of the fourth transistor (m4) and the sixth transistor (m6) are connected as a second output terminal (out2); and a first transistor (m1) and a second transistor (m2), the gates of which transistors are both connected to an input signal terminal (vin), the sources of which transistors are both connected to the drain of the seventh transistor (m0), wherein the drain of the first transistor (m1) is connected to the first output terminal (out1), the drain of the second transistor (m2) is connected to the second output terminal (out2); a seventh transistor (m0), the source of the seventh transistor (m0) is connected to a reference ground (vss), and the gate of the seventh transistor (m0) is connected to the offset voltage terminal (bbias).
Beijing Boe Display Technology Co., Ltd.


02/04/16
20160035295 
 Level shift circuit, electro-optical apparatus, and electronic equipment patent thumbnailLevel shift circuit, electro-optical apparatus, and electronic equipment
To realize a level shift circuit with the small occupation area and capable of performing high-speed operation, a level shift circuit includes an electric potential converting unit that converts a first electric potential of an input signal to a third electric potential and converts a second electric potential of an input signal to a fourth electric potential. A capacitor includes first and second electrodes, the first electrode being electrically connected to the input unit, and the second electrode being electrically connected to an output node of the electric potential converting unit.
Seiko Epson Corporation


01/28/16
20160028500 
 Communication device, reception power monitoring device, and communication device system patent thumbnailCommunication device, reception power monitoring device, and communication device system
A communication device system includes a communication device (1) and a reception power monitoring device (2). The communication device (1) includes a reception processing unit (10) that outputs a signal intensity voltage (vin) in accordance with a signal level of a received signal, and a monitoring terminal signal generator circuit (30) that generates a monitoring terminal signal (vout) by current amplification of a level shift voltage generated by shifting a level of the signal intensity voltage (vin) by an offset voltage (voff) corresponding to a voltage value of a power supply voltage of an external device.
Nec Corporation


01/21/16
20160020685 
 Semiconductor device and power converter equipment patent thumbnailSemiconductor device and power converter equipment
A semiconductor device that has a level shift circuit, an anterior stage circuit, and a posterior stage circuit. The level shift circuit transmits an input signal from a primary potential system to a secondary potential system different from the primary potential system.
Fuji Electric Co., Ltd.


01/21/16
20160019898 
 Time domain level adjustment for audio signal decoding or encoding patent thumbnailTime domain level adjustment for audio signal decoding or encoding
An audio signal decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation has a decoder preprocessing stage for obtaining a plurality of frequency band signals from the encoded audio signal representation, a clipping estimator, a level shifter, a frequency-to-time-domain converter, and a level shift compensator. The clipping estimator analyzes the encoded audio signal representation and/or side information relative to a gain of the frequency band signals in order to determine a current level shift factor.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.


01/21/16
20160019827 

In-cell touch display device


An in-cell touch display device. A panel has a plurality of data lines, a plurality of gate lines and a plurality of touch electrodes disposed thereon.
Lg Display Co., Ltd.


01/21/16
20160018916 

In-cell touch display device


An in-cell touch display device. A panel has a plurality of data lines, a plurality of gate lines and a plurality of touch electrodes disposed thereon.
Lg Display Co., Ltd.


01/14/16
20160013776 

Level shift driver circuit capable of reducing gate-induced drain leakage current


A level shift driver circuit comprises a level shift circuit and a driver circuit. The driver circuit comprises a first and a second p-type transistors and a first and a second n-type transistors coupled in series.
Ememory Technology Inc.


01/14/16
20160012790 

Level shift circuit, array substrate and display device


The present invention provides a level shift circuit, an array substrate and a display device. The level shift circuit comprising: a first level non-inverting input terminal, a first level inverting input terminal, a second level non-inverting input terminal, a second level inverting input terminal, a level state transferring unit and a second level driving unit; the level state transferring unit receives a first level input through the first level non-inverting input terminal and the first level inverting input terminal, and transfers a high and low state of the input first level to the second level driving unit; the second level driving unit outputs a second level of a corresponding state to the second level non-inverting input terminal and the second level inverting input terminal according to the input high and low state, wherein the first level is not equal to the second level..
Hefei Boe Optoelectronics Technology Co., Ltd.


01/07/16
20160004437 

Storage device and read methods thereof


A read method of a storage device includes performing a first read operation on a nonvolatile memory device based on a time stamp table storing a program time and a time-read level look-up table indicating a read level shift due to a program lapsed time. A determination is made whether to adjust the time-read level look-up table based on a result of the first read operation.

12/31/15
20150381180 

Interface circuit


An interface circuit receives an input signal in having a first voltage amplitude from a first circuit, and outputs an output signal out having a second voltage amplitude to a second circuit. A level shifter comprises a first cmos inverter and a second cmos inverter which are cross-coupled, and a current limiting circuit that limits a current that flows through the first cmos inverter and the second cmos inverter, and converts the input signal in into an intermediate signal int which is a differential signal.
Rohm Co., Ltd.


12/31/15
20150381179 

Signal transmission circuit suitable for ddr


A signal transmission method suitable for ddr for driving a connecting pad includes a level shifting circuit including up and down level shifters, a buffer circuit including up and down buffer units, and an output circuit. The level shifting circuit, disposed between a ddr operating voltage and a ground voltage, receives an input signal in a first operating voltage equal to the ground voltage and a second operating voltage smaller than the ddr operating voltage.
Mstar Semiconductor, Inc.


12/31/15
20150381086 

Fan motor power supply


A fan having one fan blade; a fan motor for rotating the fan blade; a motor control electrically coupled with the fan motor for controlling operational characteristics of the fan motor; and a power supply having a step-down high efficiency buck converter, a step-down low drop-out linear regulator, and/or a step-down switching regulator are described. The power supply may receive a first input voltage and lower the first input voltage to a second lower voltage.
Nidec Motor Corporation


12/24/15
20150372680 

Level-shifting device


A voltage level shifting device for driving a capacitive load has an input terminal for receiving a first input signal switchable between a first logic state corresponding to a first reference voltage and a second logic state corresponding to a second reference voltage, and an output terminal for supplying an output signal switchable between a first logic state corresponding to a third reference voltage and a second logic state corresponding to a fourth reference voltage. The device also has a first electronic circuit that is activated following a commutation of the first input signal from the first reference voltage to the second reference voltage for fixing the output terminal to the fourth reference voltage.
St-ericsson Sa


12/24/15
20150371598 

Scan driver adn display device using the same


Disclosed is a display device that may include a display panel, a data driver configured to supply a data signal to the display panel, and a scan driver formed in a non-display area of the display panel, including a shift register composed of a plurality of stages and a level shifter formed outside the display panel, and configured to supply a scan signal to the display panel using the shift register and the level shifter, wherein the shift register is arranged in an output terminal of an n-th stage circuit unit formed in a first non-display area and an output terminal of an n-th compensation circuit unit formed in a second non-display area opposite the first non-display area are paired to be connected to an n-th scan line, wherein the n-th compensation circuit unit outputs a compensation signal to the n-th scan line in response to a node voltage of a neighboring stage circuit unit.. .
Lg Display Co., Ltd.


12/17/15
20150364114 

Programmable level shifter for lcd systems


A programmable level shifter for providing upshifted control signals to an active matrix display based on logic-level control signals received from a timing controller. The programmable level shifter includes a programmable state machine, level-shifting output drivers, and a programming interface.
Texas Instruments Deutschland Gmbh


12/17/15
20150364078 

Scan driver and display device using the same


A scan driver and display device using the same are disclosed. The display device includes display panel, a data driver configured to supply a data signal to the display panel, and a scan driver formed in a non-display area of the display panel, including a shift register composed of a plurality of stages and a level shifter formed outside the display panel, and configured to supply a scan signal to the display panel using the shift register and the level shifter.
Lg Display Co., Ltd.


12/10/15
20150358003 

Level shift circuit


Provided is a high-reliability level shift circuit not prone to faulty operation due to noise. A level shift circuit 1 is provided with: first and second current control elements 12a and 12b into control terminals of which a reverse-phase input signal and an in-phase input signal are input, respectively; first and second load circuits 13a and 13b which are connected at one end to a high-side power source terminal vb and at the other end to each of first terminals of the first and second current control elements 12a and 12b; a comparator 14 in which a pair of differential input terminals np and nn are connected separately to each of the first terminals of the first and second current control elements 12a and 12b; a current generating circuit 3 in which first and second current output terminals na and nb are connected to second terminals of the first and second current control elements 12a and 12b, and which separately generates a current which flows through the respective first and second current control elements 12a and 12b; and voltage suppressing circuits 15a and 15b which are connected separately or commonly to the first and second current output terminals na and nb, respectively, and suppress voltage from rising in the first and second current output terminals na and nb, respectively..
Sharp Kabushiki Kaisha


12/03/15
20150349779 

Level shifter for a time-varying input


A level shifter circuit for coupling a first circuit, that uses a first supply voltage, with a second circuit, that uses a second supply voltage, includes an input node to receive an input signal and an output node to output to a level-shifted output signal corresponding with the input signal. An idle state on the input node corresponds with a particular binary logic value that is maintained for a first time period, and which is detected by a detection sub-circuit.
International Business Machines Corporation


12/03/15
20150349778 

Level shifter for a time-varying input


A level shifter circuit for coupling a first circuit, that uses a first supply voltage, with a second circuit, that uses a second supply voltage, includes an input node to receive an input signal and an output node to output to a level-shifted output signal corresponding with the input signal. An idle state on the input node corresponds with a particular binary logic value that is maintained for a first time period, and which is detected by a detection sub-circuit.
International Business Machines Corporation


12/03/15
20150349769 

Current-controlled cmos logic family


Various circuit techniques for implementing ultra high speed circuits use current-controlled cmos (c3mos) logic fabricated in conventional cmos process technology. An entire family of logic elements including inverter/buffers, level shifters, nand, nor, xor gates, latches, flip-flops and the like are implemented using c3mos techniques.
Broadcom Corporation


12/03/15
20150349759 

Level shift circuit


A level shift circuit includes a first pair of transistors of the first conductive type (m1, m4) with sources coupled to a pair of input nodes (in, inb) and gates coupled to the first power supply (gnd) in common; a second pair of transistors of the second conductive type (m2, m5) with drains coupled to the drains of the first pair of the transistors and the gates coupled to the first power supply in common; a third pair of transistors of the second conductive type (m3, m6) with cross-coupled gates and drains coupled to the sources of the second pair of transistors and the sources coupled to the second power supply (v2) in common; and a pair of capacitative elements (c1, c2) with one ends coupled to the pair of input nodes and the other ends coupled to the drains of the third pair of transistors.. .
Renesas Electronics Corporation


12/03/15
20150349005 

Integrated circuit having a level shifter


An integrated circuit comprises a photodiode having a photodiode output, and a column line electrically coupled to the photodiode. A transfer transistor is electrically coupled to the photodiode and to the column line.
Taiwan Semiconductor Manufacturing Company, Ltd.


12/03/15
20150346742 

Energy recycling for a cost effective platform to optimize energy efficiency for low powered system


A system including: a voltage converter configured to convert a voltage from a power source to a different voltage; a memory coupled to the voltage converter; a digital logic circuit; and a level shifter coupled between the memory and digital logic circuit; wherein leakage current from the memory is stored in a capacitance in the digital logic circuit, wherein the voltage converter is further coupled to a node between the memory and digital logic circuit, and wherein the voltage converter is configured to: monitor a voltage at the node wherein the node has a desired operating voltage value; and adjust the voltage at the node when the voltage at the node varies from the desired operating voltage value.. .
Nxp B.v.


11/26/15
20150341034 

Methods, circuits, devices and systems for integrated circuit voltage level shifting


Disclosed is an integrated circuit voltage level shifter including: a first set of pull-up transistors to selectively pull an output voltage towards a high voltage source level based on an input; a second set of pull-down transistors adapted to selectively pull the output voltage towards a lower voltage source level based on the input and a third set of transistors to limit current flow through the second set of pull-down transistors and to mitigate snapback of the second set of pull-down transistors using a bias gate voltage.. .
Spansion Llc


11/26/15
20150339999 

Shift register, driving the same, and display device


A shift register according to the present disclosure may specifically include multi-level shift register units, a first connecting tft set and a second connecting tft set. In the multi-level shift register units, control signal input ends of odd-number-level shift register units are inputted with a first control signal and control signal input ends of even-number-level shift register units are inputted with a second control signal.
Hefei Boe Optoelectronics Technology Co., Ltd.


11/26/15
20150339962 

Data driver and a display apparatus including the same


A data driver includes a data storage unit configured to store a data signal therein, a level shifting block configured to shift a level of the data signal and output a level shifted data signal based on the result of the level shifting, a waveform conversion block configured to convert a waveform of the level shifted data signal and generate a conversion data signal (e.g., based on the waveform conversion), and a digital-analog conversion unit configured to output an analog signal based on the conversion data signal, wherein the conversion data signal has a rising time and a descending time that are different from each other.. .
Dongbu Hitek Co., Ltd.


11/19/15
20150333621 

Detector having offset cancellation function, and power factor correction apparatus and power supplying apparatus having the same


A detector having an offset cancellation function, and a power factor correction apparatus and a power supplying apparatus having the same are provided. The detector detecting a level of an input signal may include a level shifter shifting the level of the input signal, and a comparator amplifying a voltage difference between the level of the signal shifted by the level shifter and a ground, and providing a compensation current according to an offset generated at the time of amplifying a voltage to cancel the offset..
Samsung Electro-mechanics Co., Ltd.


11/19/15
20150333556 

Single power supply level shifter


A single power supply level shifter has first and second inverters in tandem that invert an input signal from a first voltage domain and provide a first inverted signal and an output signal in a second voltage domain. A charging control circuit charges a capacitor towards the second voltage when the input signal is high, and conducts a discharge current from the capacitor during a transition of the input signal from high to low to accelerate a corresponding transition of the first inverted signal from low to high.
Freescale Semiconductor, Inc.


11/19/15
20150331521 

Capacitive touch detecting device and method using level shift, and display device using the same


Provided is a touch detecting device that detects occurrence of a level shift phenomenon of a voltage variation to thus acquire a touch signal, when a touch capacitance due to a touch input is added to a common electrode capacitance formed between a common electrode and a sensor pattern. Accordingly, the touch signal may be stably obtained in spite of external noise, and an influence due to a parasitic capacitance may be minimized..

11/05/15
20150318849 

Gate driving circuit and driving method thereof


A gate driving circuit and a driving method thereof are provided. The gate driving circuit includes a control signal generator and at least one gate channel set, each of the at least one gate channel set includes a plurality of gate channels, and the plurality of gate channels share a level shifter.
Novatek Microelectronics Corp


11/05/15
20150318844 

Schmitt trigger with threshold voltage close to rail voltage


Voltage level shifting in a switching output stage is presented. The circuit may include a switching output stage configured to receive an analog input signal and provide a responsive digital output signal, the switching output stage having a first switching device coupled to a first supply voltage and a second switching device coupled to a second supply voltage, the first switching device and the second switching device being coupled to a common output node.
Cirrus Logic, Inc.


10/29/15
20150311893 

Method, apparatus and system for an edge rate controlled output buffer


A circuit for minimizing variation over process, voltage and temperature for edge rate over and propagation delay. The circuit includes at least two first buffers for decoupling large nonlinear parasitic capacitors of the main drivers, at least two second buffers for level shifting to the at least two first buffers, at least two voltage sources for initializing the stage of at least one of the first or the second buffer, and a current source generator coupled to the voltage source of the second buffers..
Texas Instruments Incorporated


10/29/15
20150311885 

Power-up signal generation circuit and semiconductor device including the same


A power-up signal generation circuit including a pre-power-up signal generation block operates by using a first power supply voltage, and generates a pre-power-up signal when the first power supply voltage becomes higher than a first level, and a second power supply voltage becomes higher than a second level; a level shifting block suitable for pull-down driving a first node when the pre-power-up signal is not in an activated state, and pull-up driving the first node with the second power supply voltage when the pre-power-up signal is in the activated state; a driving block suitable for pull-down driving the first node when the second power supply voltage is lower than the second level; and a power-up signal driving block operates by using the second power supply voltage, and generates a power-up signal through a second node by driving the second node based on a voltage level of the first node.. .
Sk Hynix Inc.


10/29/15
20150311196 

Integrated semiconductor device having a level shifter


An integrated semiconductor device is provided. According to an embodiment, the integrated semiconductor device includes a semiconductor body having a first surface with a normal direction defining a vertical direction, an opposite surface, a first area including a vertical power field-effect transistor structure, a second area including a three-terminal step-down level-shifter, and a third area including a three-terminal step-up level-shifter.
Infineon Technologies Ag


10/22/15
20150304135 

System and ac coupling


An ac coupling circuit is provided that has a level shifter circuit having a p input voltage and an n input voltage and producing a p output voltage and a p output voltage. There is a common mode voltage adjustment feedback circuit configured to cause a common mode voltage output to tend towards a specified reference voltage, the common mode voltage output being an average of the p output and n output voltages of the level shifter circuit.
Cortina Systems, Inc.


10/22/15
20150303922 

High voltage switch circuit and nonvolatile memory including the same


A high voltage switch circuit includes a high voltage switch suitable for transferring a voltage of an input terminal to an output terminal in response to a voltage of a control node; a first transistor suitable for electrically connecting a first node and the control node in response to an inverted activation signal; a second transistor suitable for supplying a first high voltage to the first node in response to an activation signal; a third transistor connected in parallel to the second transistor, and operable in response to the control node; a discharge transistor suitable for discharging the control node; and a first level shifter suitable for changing a swing level of a preliminary activation signal, and generating the activation signal and the inverted activation signal.. .
Sk Hynix Inc.


10/22/15
20150303919 

Level shifter and digital to analog converter


Provided are a level shifter and a digital to analog converter, which can make a minimum value of an output voltage be greater than 0. In the circuit, sources of a first field effect transistor and a second field effect transistor are connected to a first direct current power supply; a drain of the first field effect transistor and a gate of the second field effect transistor are connected to one terminal of a first capacitor; a connecting end formed after the other terminal of the first capacitor is connected to an input end of a phase inverter is used as a digital signal input end; a gate of the first field effect transistor, a drain of the second field effect transistor, a source of a third field effect transistor, and a source of a fifth field effect transistor are connected to one terminal of a second capacitor..
Huawei Technologies Co., Ltd.


10/22/15
20150302918 

Word line decoders for dual rail static random access memories


Word line decoders for dual rail sram devices are disclosed for high performance sub-micron sram designs. One embodiment is an sram device that includes a memory cell array and a word line traversing the memory cell array for selecting memory cells of the memory cell array.
Lsi Corporation


10/22/15
20150301675 

Apparatus for improving signal-to-noise performance of projected capacitance touch screens and panels


Improved signal-to-noise performance of projected capacitance touch screens and panels is provided by an integrated circuit regulated high voltage source and high voltage/current drivers coupled to a plurality of projected capacitive touch elements that are controlled by a microcontroller. The single integrated circuit high voltage generator/driver may comprise a voltage boost circuit, a voltage reference, power-on-reset (por), soft start, a plurality of voltage level shifters and a serial interface for coupling to the microcontroller that may control all functions related to using the projected capacitance touch screens and panels..
Microchip Technology Incorporated


10/15/15
20150295585 

Decoder level shifter device and digital to analog converter using the same


A decoder level shifter device includes a first decoder level shifter and a second decoder level shifter. The first decoder level shifter has first to fourth input terminals, first and second output terminals, first and second enable terminals, first and second reset terminals.

10/15/15
20150295561 

Voltage level shifter module


A voltage level shifter module comprising at least one input arranged to receive an input signal, and at least one cascode transistor arranged to receive at a gate thereof at least one reference voltage signal. The voltage level shifter module further comprises at least one reference voltage control component arranged to detect logical state transitions within the input signal from at least a first logical state to a second logical state, and cause the reference voltage signal applied to the gate of the at least one cascode transistor to be pulled down to a reduced voltage upon detection of a logical state transition within the input signal from at least a first logical state to a second logical state..

10/15/15
20150293872 

Dual serial/parallel interface devices and switching components


Systems, methods, and devices for communicating with a serial/parallel interface are described herein. In an aspect, a wireless device includes a transceiver configured to output a plurality of transmission paths, and an antenna configured to output a signal corresponding to at least one of the transmission paths.



Level Shift topics: Level Shift, Level Shifter, Semiconductor, Level Shift Circuit, Transistors, Semiconductor Substrate, Voltage Level Shift, Level Shifter Circuit, Shifter Circuit, Modulation, Adverse Effect, Protection Circuit, Schmitt Trigger, Transimpedance Amplifier, Optical Fiber

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