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7619460 |
Reference clock receiver compliant with LVPECL, LVDS and PCI-Express supporting both AC coupling and DC coupling
A reference clock receiver structure according to the invention is provided. The structure preferably includes an input buffer that is formed from a PMOS differentiated pair of transistors and a...
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7619459 |
High speed voltage translator circuit
A high speed voltage translator circuit includes a voltage divider coupled between first and second power supplies, a transconductance amplifier coupled between third and fourth power supplies...
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7616033 |
Apparatus and method for supplying voltage in semiconductor device
For supplying voltage to at least one main current consuming unit, a voltage supply unit provides the voltage to the at least one main current consuming unit at a supply node. In addition, an...
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7612601 |
Semiconductor integrated circuit device
A semiconductor integrated circuit device provided with a first circuit block BLK 1, a second circuit block DRV 1 and a conversion circuit MIO 1 for connecting the first circuit block to the...
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7609090 |
High speed level shifter
Embodiments of the present invention provide level shifter circuits capable of high frequency operations. The level shifter circuit utilizes a dynamic charge injection device, which diminishes a...
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7605633 |
Level shift circuit which improved the blake down voltage
A gate and the other end of the current path of first and second transistors are cross-connected. A third transistor is inserted to the other end of the current path of the first transistor, and a...
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7598950 |
Display control device with multipurpose output driver
A display control device includes a controller, a scaling engine, a timing controller, a selector and an interface circuit. The controller is for providing a mode-control signal. The scaling engine...
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7598791 |
Semiconductor integrated apparatus using two or more types of power supplies
A semiconductor integrated apparatus includes a control circuit unit which is connected to a low potential power supply terminal and a ground potential power supply terminal, and to which a...
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7592858 |
Circuit and method for a gate control circuit with reduced voltage stress
Circuit and method for a gate control output circuit having reduced voltage stress on the devices is disclosed. In a circuit of MOS transistors for supplying an output to control a transfer gate,...
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7592850 |
Level shifter including boosting circuit
A level shifter includes a level shifting circuit shifting a level of a boosted signal input through an input terminal connected to the level shifter and outputting the boosted signal at a new...
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7592849 |
Level shifter for semiconductor memory device implemented with low-voltage transistors
A level shifter is proposed. The level shifter includes a stage having a first branch and a second branch, each branch including: a selection terminal for receiving a selection signal, the...
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7592845 |
Input signal level detection apparatus and method
A method and an input signal level detection apparatus that correctly detect a level of an input signal while consuming low power apparatus including: a full-wave rectifier outputting a full-wave...
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7589578 |
Level shift circuit and semiconductor device
A level shift circuit for sustaining the activation and inactivation response of a transistor with respect to an input signal in a preferable manner. The level shift circuit includes a shift...
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7589559 |
Current mode circuitry to modulate a common mode voltage
In some embodiments, a chip includes transmitters to transmit differential signals on conductors; and current mode circuitry to selectively modulate a common mode voltage of the differential...
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7586358 |
Level shifter and driving method
A level shifter includes; a level conversion unit which receives a first input signal and a second input signal, wherein the second input signal is an inversion of the first input signal, and...
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7586212 |
Multi-output power supply apparatus
The present invention provides an efficient multi-output power supply apparatus that enables a reduction in the on voltage of a main switch in a step-down power supply circuit or the like over a...
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7583126 |
Apparatus and method for preventing current leakage when a low voltage domain is powered down
An apparatus and method are provided for preventing a current leakage or direct current when a low voltage domain is powered down. Included is a voltage transition circuit connected between a low...
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7583106 |
Clock circuitry
A circuit comprising: clock circuitry for supplying a first faster clock signal to a first circuit portion and a second slower clock signal to a second circuit portion, and varying the relative...
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7579870 |
Level shifter
Input transistors have sources which are connected to a first input reference node and gates to which a pair of input signals are input. Input-side voltage relaxing transistors have sources...
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7576574 |
Constant current circuit and light emitting diode drive circuit
A constant current generator which includes a first transistor to supply current in accordance with a control signal, a second transistor that is a MOS transistor having an equal impurity type to...
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7573314 |
Level shift circuit
The present invention provides a level shift circuit that can reliably cut off the path of a through current regardless of the state of supply of power to plural circuit sections that operate by...
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7573313 |
Logic level voltage translator
A voltage level translator provides an output signal having an external voltage in response to an input signal having an internal voltage. The voltage level translator includes first and second...
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7571407 |
Semiconductor integrated circuit and method of testing delay thereof
A semiconductor integrated circuit comprises: a first area, formed on a semiconductor chip, which operates at a first predetermined voltage and a first predetermined frequency; a second area,...
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7570106 |
Substrate voltage generating circuit with improved level shift circuit
A substrate voltage generating circuit including level shifting circuits, a first power supply node of a first potential level V DD a second power supply node of a second potential level V SS ...
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7567112 |
Voltage level shifter and method thereof
A voltage level shifter converts an input signal into an output signal. While the input signal is high to the output signal is high either. Moreover, while the input signal is low the output signal...
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7567111 |
Potential fixing circuit for integrated circuit having multiple supply potentials
A semiconductor integrated circuit operates at two or more supply potentials including a first supply potential and a second supply potential that is higher than the first supply potential, and...
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7564297 |
Power supply circuit and electronic device equipped with same
A power supply circuit is provided which is capable of preventing a drop in an output voltage of the power supply circuit used as a DC/DC converter made up of single and conductive type (n-type or...
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7564290 |
Design structure for a high-speed level shifter
Disclosed are embodiments of a design structure for a voltage level shifter circuit that operates without forward biasing junction diodes, regardless of the sequence in which different power...
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7564289 |
Voltage level shift circuit and semiconductor integrated circuit
Provided is a voltage level shift circuit including: a first voltage level shift circuit formed of a P-channel enhancement type transistor (M 1 ) and an N-channel depletion type MOS transistor (M 3...
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7564288 |
Semiconductor integrated circuit
A semiconductor integrated circuit that operates upon supply of a plurality of power potentials including a first power potential and a second power potential higher than the first power potential,...
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7560972 |
Methods and apparatus to reduce propagation delay of circuits
Methods and apparatus to reduce propagation delay of circuits are disclosed. A disclosed apparatus to reduce propagation delay of a circuit comprises a level shifter to selectively turn a first...
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7560971 |
Level shift circuit with power sequence control
A level shift circuit for providing predictable outputs when VDDH is powering up and minimizing DC current when VDDL is powering up. The level shift circuit may have a control circuit that includes...
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7560970 |
Level shifter
A level converter comprises first and second latches, and first through fourth transistors. The first latch has first and second power supply terminals, and first and second nodes. The second latch...
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7557634 |
Low-power consumption high-voltage CMOS driving circuit
The low power consumption CMOS high voltage driving circuit relates to a kind of high voltage driving circuit for output driving, and there is an out buffer stage between the output end of the...
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7557633 |
High speed analog envelope detector
A high speed analog transmission envelope (data-validity) detector for detecting the validity or invalidity of received data by generating (and comparing) first through fourth level-shifted signals...
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7554379 |
High-speed, low-power level shifter for mixed signal-level environments
A level shifter is presented that allows fast switching while requiring low power. In accordance with some embodiments of the invention, the level shifter is a two stage level shifting circuit with...
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7551017 |
Level shifter and methods for use therewith
A level shifter includes a first level shift module for producing a shifted signal by adjusting a direct current (DC) level of an input signal by a first bias voltage having a first polarity. A...
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7548365 |
Semiconductor device and method comprising a high voltage reset driver and an isolated memory array
A method of operating a semiconductor device, a semiconductor device and a digital micromirror system are presented. In an embodiment, the semiconductor device comprises a grounded substrate, a...
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7548107 |
Voltage output device for an electronic system
The present invention discloses a voltage output device for an electronic system, for transforming an input voltage for generating an output voltage for a load, which includes a first transistor, a...
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7545685 |
High voltage switch circuit having boosting circuit and flash memory device including the same
A high-voltage switch circuit includes an enable control circuit, a feedback circuit, a boosting circuit, and a high voltage switch. The enable control circuit precharges an output node to a set...
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7545357 |
Display device having an improved voltage level converter circuit
A display device has a driver including a level converter formed of polysilicon MISTFTs. The level converter includes first, second and third N-channel MISTFTs (NMISTFTS) and first, second and...
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7545174 |
Level shift circuit and display device having the same
A liquid crystal display (“LCD”) includes a first voltage shift circuit at a front stage of an inverter circuit. The first voltage shift circuit includes a second transistor having a source...
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7545173 |
Level shift delay equalization circuit and methodology
Transition delays in a level shift circuit are equalized by generating a first signal related to the state of the input signal, a second signal inversely related to the state of the input signal,...
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7545171 |
Input/output device with fixed value during sleep mode or at a time of supplying initial voltage to system
An input/output device includes: a level shifter configured to convert an input signal of a first voltage into an output signal of a second voltage; and an output driver configured to operate in...
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7545170 |
Source driver and level shifting method thereof
The present invention provides a source driver comprising a shift register, a line buffer for storing a data signal and outputting a buffered data signal, and a level shifter for generating a...
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7538581 |
Fast AC coupled level translator
A level translator has a pair of transistors, wherein a first transistor of the pair of transistors and a second transistor of the pair of transistors are complimentary. A pair of capacitors are...
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7535280 |
Apparatus and method for shifting a signal from a first reference level to a second reference level
An apparatus for shifting a received signal at a first reference level to an output signal at a second reference level; the received signal including information-indicating signal values; includes:...
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7535262 |
High voltage level shifting by capacitive coupling
A circuit configuration which includes an input circuit referenced to one ground voltage and an output circuit referenced to another ground voltage capacitively coupled to the input circuit.
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7532054 |
Semiconductor integrated circuit device having I/O circuitry for low voltage operation
A semiconductor integrated circuit device including an I/O circuitry capable of low-voltage high-speed operation at low cost is provided. In the I/O circuitry, when an I/O voltage (for example, 3.3...
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7532033 |
Source driver and level shifting apparatus thereof
The present invention discloses a source driver and a level shifting apparatus thereof. The level shifting apparatus is used for shifting a level of a data signal. The level shifting apparatus...
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