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Class 327/545 - Including signal protection or bias preservation


Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein a circuit is provided which guards
No. of patents: 304
Last issue date: 06/28/2011


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NumberTitleIssue Date
7969237Semiconductor integrated circuit device
A semiconductor integrated circuit device includes at least one first transistor configured to control conductance between an input power line and an output power line, at least one second transistor configured to control conductance between the input power line and...
06/28/2011
7852145Semiconductor device having power supply system
A semiconductor device is provided which includes: a first semiconductor integrated circuit; a ground line and a power supply line trough which electric power is supplied to the first semiconductor integrated circuit; and a variable impedance component which is conn...
12/14/2010
7479824Dual mode voltage supply circuit
A dual mode voltage supply circuit (50) includes an active mode voltage supply circuit (58) and a passive mode voltage supply circuit (60). The active mode voltage supply circuit (58) is selectively operative to supply a voltage (57
01/20/2009
7479823Multiple circuit blocks with interblock control and power conservation
A semiconductor integrated circuit is provided including a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit blocks. The integrated circuit includes an interblock interface circuit provided on a signal pa...
01/20/2009
7468627Multiple circuit blocks with interblock control and power conservation
A semiconductor integrated circuit is provided including a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit blocks. The integrated circuit includes an interblock interface circuit provided on a signal pa...
12/23/2008
7468626Multiple circuit blocks with interblock control and power conservation
A semiconductor integrated circuit is provided including a plurality of circuit blocks and adapted to cut off the supply of power source voltage to any one of the circuit blocks. The integrated circuit includes an interblock interface circuit provided on a signal pa...
12/23/2008
7427873Systems and methods for current management for digital logic devices
Systems and methods for Current Management of Digital Logic Devices is provided. In one embodiment, a method of current management for a digital logic circuit is provided. The method comprises drawing power to drive a digital logic integrated circuit; performing one...
09/23/2008
7392401Data storage apparatus
In an encryption storage apparatus (data storage apparatus) (1), when entered an allocation request signal (a1), a key management section (7) outputs a generation request signal (b) to a random number generation section (3). The random nu...
06/24/2008
7385434Circuit for preventing latch-up in DC-DC converter
There is provided a circuit for preventing latch-up in a DC-DC. The circuit for preventing a latch-up phenomenon in a DC-DC converter, the DC-DC converter having a first and a second DC-DC converters coupled with each other in one chip for receiving an input voltage...
06/10/2008
7372320Voltage regulation with active supplemental current for output stabilization
Techniques for efficiently stabilizing an output voltage produced by a voltage regulation circuit are disclosed. One embodiment pertains to a voltage regulation circuit that includes a supplemental current source that can be controllably activated to provide a suppl...
05/13/2008
7372683Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit
An over voltage detection circuit, which is used in a power source, a power supply system, and an electronic apparatus, includes two voltage comparison circuits. A first comparison circuit, provided for high-speed signal responses, includes voltage dividing resistor...
05/13/2008
7348836Integrated circuit core power supply event monitor
An integrated circuit core power supply event monitor is disclosed. The integrated circuit core power supply event monitor includes a plurality of sub-circuit power supply event monitors. Each sub-circuit power supply event monitor includes a first input for receivi...
03/25/2008
7332956Method to avoid device stressing
A system for protecting a weak device operating in micro-electronic circuit that includes a high voltage power supply from high voltage over stressing prevents the weak device from failing during power-up, power-down, and when a low voltage power supply in a multipl...
02/19/2008
7313048Reset detection circuit in semiconductor integrated circuit
A reset detection circuit for a logic circuit and a RAM includes a first determining circuit, a second determining circuit and a reset signal generating circuit. The first determining circuit operates with a first voltage and determines whether a second voltage is e...
12/25/2007
7312653NMOS reverse battery protection
A reverse polarity protected system comprises a voltage source that includes positive and negative terminals. A polarity-sensitive device has a first terminal that communicates with the positive terminal of the voltage source, and that includes a second terminal. A ...
12/25/2007
7291938Power supply apparatus and method based on parasitic power extraction
Power supply apparatus and method based on parasitic power extraction is disclosed. Power is extracted from signals that are inbound and/or outbound from an equipment. The extracted power is converted to dc voltages for a device associated with the equipment. The po...
11/06/2007
7292072Sub-micron high input voltage tolerant input output (I/O) circuit
A method of providing bias voltages for input output connections on low voltage integrated circuits. As integrated circuit voltages drop generally so does the external voltages that those circuits can handle. By placing input and output devices, in series, external ...
11/06/2007
7288980Multiple mode clock receiver
A multiple mode clock receiver including first and second input AC-coupled capacitors, first and second voltage dividers and a differential amplifier. The voltage dividers each include first and second junctions, respectively, coupled to the first and second AC-coup...
10/30/2007
7286004Current source circuit
According to the present invention, after a bias circuit (20) starts, a startup circuit (10) is isolated from the bias circuit (20) according to a bias voltage generated on an isolating voltage node (V2) from the bias circuit (20) ...
10/23/2007
7286005Supply voltage switching circuit
A supply voltage switching circuit for a computer includes a chipset, a first transistor, a second transistor, and a third transistor. The chipset includes a first MOSFET and a second MOSFET. A 5V system voltage and a 5V standby voltage are respectively inputted to ...
10/23/2007
7282988Bandgap reference circuit
A bandgap reference circuit is proposed. To remove parasitic effects, this includes the combination of a first circuit section (1), which generates a temperature-proportional voltage, and a second circuit section (2), which generates an inversely tempe...
10/16/2007
7280808Wireless communications devices including circuit substrates with partially overlapping conductors thereon coupling power to/from power amplifier systems
A wireless communications device can include a power amplifier that is configured to transmit information to a wireless communications network during a first time interval and configured to avoid transmitting information during a second time interval. A circuit subs...
10/09/2007
7276957Floating well circuit having enhanced latch-up performance
A circuit for defining a voltage potential of a floating well in which is formed at least one metal-oxide-semiconductor device includes a sense circuit operative to detect a voltage at a node to which the floating well is connected and to generate a control signal i...
10/02/2007
7276984Oscillation circuit capable of having stable oscillation in wide temperature range
An oscillation circuit includes a constant current source, a current mirror circuit configured to receive a constant input current from the constant current source and to output a current proportional to the constant input current, a first inverter configured to be ...
10/02/2007
7269764Monitoring VRM-induced memory errors
A method and system for improving Field Replacement Unit (FRU) isolation in memory sub-systems by monitoring Voltage Regulator Module (VRM) induced memory errors. A comparator compares the output voltage coming from the VRM to memory. If the comparator detects a VRM...
09/11/2007
7259615Bias voltage supply circuit and radio-frequency amplification circuit
A bias-voltage supply circuit of a radio-frequency amplification circuit has the constant-voltage power supply generating a constant voltage higher than the bias voltage, a rectifier transistor and a constant-current power supply supplying a constant current to the ...
08/21/2007
7257384Methods and apparatus for detecting the envelope of RF power signals
Apparatus for detecting the envelope of an RF signal that comprises an RF transistor operating essentially at a non-linear operating point at the RF frequency range; a DC power supply for feeding the RF transistor; a dummy load for terminating the output of the RF t...
08/14/2007
7248988System and method for reducing temperature variation during burn in
Systems and methods for reducing temperature variation during burn-in testing. In one embodiment, power consumed by an integrated circuit under test is measured. An ambient temperature associated with the integrated circuit is measured. A desired junction temperatur...
07/24/2007
7248102Internal reference voltage generation for integrated circuit testing
For one or more disclosed methods, a supply voltage is supplied to an integrated circuit, the integrated circuit is placed in a test mode to select one of a plurality of reference voltage generators on the integrated circuit to supply to another voltage generator on...
07/24/2007
7245154Differential input receiver with programmable failsafe
In one embodiment, a circuit is provided that includes: a differential input receiver having a first input terminal and a second input terminal; a first programmable switch coupled to the first input terminal and coupled through a first resistor to a first voltage s...
07/17/2007
7233193High voltage switching circuit of a NAND type flash memory device
A high voltage switching circuit of a NAND type flash memory device that includes a clock level shifter for increasing an amplitude of a clock signal, a pass voltage generator for outputting a pass voltage by pumping a power source voltage in response to a clock sig...
06/19/2007
7227211Decoupling capacitors and semiconductor integrated circuit
VSS 302 is provided to a gate portion 304 and VDD 301 is provided to a source portion 305 and a drain portion 306 of a MOS transistor which constitutes a decoupling capacitor, and a potential NWVDD 303 different from that pr...
06/05/2007
7205830Analog MOS circuits having reduced voltage stress
Circuits and methods are provided for reducing the voltage stress applied to the drain to source conduction path of an FET and/or to reduce the stress to the gate oxide of an FET which may have a thin gate oxide. Thus, in a current mirror circuit disclosed herein, a...
04/17/2007
7199612Method and circuit for reducing HCI stress
Systems and methods are disclosed for reducing or eliminating hot carrier injection stress in circuits. In one embodiment, the present invention relates to an integrated circuit comprising an IO PAD, an output circuit coupled to at least the IO PAD and a stress circ...
04/03/2007
7193677Display device and portable terminal device using the same
The present invention provides a display device. The display device comprises a first substrate having formed thereon a pixel section (12) in which a plurality of pixels (11) are arranged in a matrix form and driving systems (13, 14) for driving...
03/20/2007
7180758Class E amplifier with inductive clamp
A power supply including an inverter receiving a DC input signal from a DC input source (11). The inverter is implemented as a single-ended inverter. Each inverter is driven by a signal source (13A, 13B), which outputs an AC signal. The output f...
02/20/2007
7167043Decoupling circuit for co-packaged semiconductor devices
A model for noise coupling in copackaged semiconductor devices due to coupling through parasitic impedances, and a method and decoupling circuit to minimize the effects of such noise. In one example, which is not intended to be limiting either as to the application ...
01/23/2007
7153444Apparatus and method for radio frequency de-coupling and bias voltage control in a plasma reactor
Provided is a method and apparatus for controlling a bias voltage over a wide range and for de-coupling dual radio frequency (RF) currents to allow for independent control of plasma density and ion energy of a plasma for processing a substrate. An exemplary apparatu...
12/26/2006
7142038Selection circuit
A selection circuit having a comparator with comparator inputs connected to first and second voltage inputs), respectively, and a comparator output connected to a control input of a first controllable switch and an inverter. The selection circuit also has a second c...
11/28/2006
7129600Control circuit with multiple power sources
The present invention provides a control circuit with multiple power sources, which accepts an output signal from a comparator circuit. This control circuit with multiple power sources contains two components: one is a voltage transferring circuit, which connects to...
10/31/2006
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