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| Number | Title | Issue Date |
| 8188774 | Apparatus and methods for activation of an interface on an integrated circuit One embodiment relates to a method for activating an interface on an integrated circuit while a core of the integrated circuit is becoming operational. An offset calibration for a transceiver channel is performed by physical media attachment circuitry. A transmittin... | 05/29/2012 |
| 8183897 | Integrated circuit device and electronic apparatus An integrated circuit device includes: an internal circuit; a ground terminal; a first terminal that is provided with a first signal that becomes to be a ground level during at least a portion of a period in which the internal circuit is operating; a detection circu... | 05/22/2012 |
| 8154325 | Semiconductor integrated device and control method thereof Provided is a semiconductor integrated device that selects one or more of a plurality of functional blocks and resets the selected functional block, and a control method of the semiconductor integrated device. The semiconductor integrated circuit includes a function... | 04/10/2012 |
| 8120393 | Semiconductor memory apparatus A semiconductor memory apparatus includes a initialization signal generating unit configured to vary a voltage level of an external voltage in response to a detection signal, the external voltage enables a power-up signal, an internal voltage generating unit configu... | 02/21/2012 |
| 8089305 | Power supply voltage reset circuit and reset signal generating method A power supply voltage reset circuit, provided in an apparatus having an internal circuit capable of adjusting an internal power supply voltage, for resetting the internal circuit when a power supply voltage of the apparatus rises, and includes: a unit that generate... | 01/03/2012 |
| 8085069 | Starting apparatus and starting method A starting apparatus includes: a storage unit storing an identifier; a rectifying unit rectifying a reception signal; a generating unit comparing the reception signal rectified in the rectifying unit to a reference signal and generating a digital signal from the rec... | 12/27/2011 |
| 8044691 | Method for detecting minimum operational frequency A method of detecting a minimum operational frequency includes: generating a signal that becomes an oscillating signal at a first predetermined frequency; and generating a logic signal to provide a level transition when a frequency of the oscillating signal reaches ... | 10/25/2011 |
| 8035426 | Power-on-reset generator using a voltage-shaping inverter chain This application discloses a device that has a power-on reset generator. The power-on reset generator can include a power-on detector that receives an input electrical signal and outputs a digital signal that has predetermined value when the voltage of the input ele... | 10/11/2011 |
| 8030978 | Soft-start circuit A soft-start circuit is provided. The soft-start circuit comprises: an input stage, a pump stage, a second resistor and a capacitor. The input stage comprises a first resistor to receive an input voltage to provide a reference current at a first node. The pump stage... | 10/04/2011 |
| 7990190 | Power-on reset circuit, module including same, and electronic device including same A power-on reset circuit includes a charge-up circuit to charge a first capacitor after power is on, a first NOR circuit connected to an output terminal of the charge-up circuit and receive a power-on reset signal output from an output terminal of the power-on reset... | 08/02/2011 |
| 7990189 | Power-up signal generating circuit and integrated circuit using the same A power-up signal generating circuit includes a detecting unit configured to output a bias signal having a voltage level corresponding to an external power voltage in response to an internal voltage and a deep power down (DPD) signal; and a signal generating unit co... | 08/02/2011 |
| 7977982 | Semiconductor integrated circuit, test method and electronic information device A semiconductor integrated circuit, including: a logic section; an initiating current generating section for generating initiating current for initiating or re-initiating a circuit when the circuit is to be initiated or the circuit operates abnormally; an initiating... | 07/12/2011 |
| 7965112 | Power-on reset circuits Power-on reset circuits are disclosed. A first reset circuit includes a first comparator to output a system reset signal, and a second reset circuit outputs a first reset signal to control operations of the first comparator, such that the first reset circuit outputs... | 06/21/2011 |
| 7965113 | System for detecting a reset condition in an electronic circuit There is disclosed a system for detecting the assertion of a reset signal. A plurality of circuit elements is configurable by a reset signal to output a string of data values in a predetermined pattern. A comparator receives the string of data values and determines ... | 06/21/2011 |
| 7952400 | Reset device A disclosed reset device for outputting a reset signal based on a magnitude of an input power supply voltage includes: a power supply voltage monitoring unit including a comparator to which a detection voltage detected based on the magnitude of the power supply volt... | 05/31/2011 |
| 7952401 | Standby control circuit and method A standby control circuit for an integrated circuit module includes a first control circuit that is responsive, in a normal operating mode of the integrated circuit module, to an asynchronous standby signal indicating a standby mode entry event to output a standby m... | 05/31/2011 |
| 7944254 | Switching circuit A switching circuit includes a first switching module, a second switching module, a first relay module, a second relay module, and a processing module. The first switching module includes a switch and a first transistor. The base of the first transistor functions as... | 05/17/2011 |
| 7906996 | System and method for controlling an integrated circuit in different operational modes A system and method for controlling an IC in different operational modes involves automatically loading operational configurations of target circuitries in the IC for a determined operational mode into at least one register and operating the target circuitries in th... | 03/15/2011 |
| 7898305 | PLL circuit A PLL comprises a current-controlled oscillator (18) for generating an output clock signal based on a current signal generated based on a phase difference between a reference clock signal and a feedback clock signal, a current source (28), and an initi... | 03/01/2011 |
| 7825704 | Threshold personalization testmode A threshold personalization circuit for a reset or supervisor chip includes personalization fuses, which shift a resistor divider to provide a variety of selectable voltage thresholds. The personalization fuses may provide hundreds of millivolts of adjustment. The t... | 11/02/2010 |
| 7786769 | On die signal detector without die power In general, in one aspect, the disclosure describes an apparatus having on die circuitry coupled to at least one input port to receive a signal. A resistor is coupled to the on die circuitry and an off die power supply When a signal of sufficient amplitude is receiv... | 08/31/2010 |
| 7755400 | Systems and methods of digital isolation with AC/DC channel merging Systems and methods for digital isolation in circuits are provided. On power-up in an isolation application, there may be multiple power supplies. For example, one for an input side and one for an output side, both in relation to an isolation barrier. Upon power up,... | 07/13/2010 |
| 7679411 | Reset signal generation circuit A reset signal generation circuit for generating a reset signal synchronously or asynchronously to a clock signal in accordance with an operation state. An operation detection circuit detects operation of a CPU and generates an operation detection signal. A signal c... | 03/16/2010 |
| 7671643 | Power-on-reset circuit having zero static power consumption A power-on-reset (POR) circuit having a zero or substantially zero current state while the supply voltage is in a predetermined, valid range is disclosed. The POR circuit includes a state machine, an oscillator, and output circuitry that are electrically coupled to ... | 03/02/2010 |
| 7667506 | Customizable power-on reset circuit based on critical circuit counterparts A power-on-reset circuit (POR) for integrated circuits that detects the minimum power levels needed to operate the most critical circuit(s) reliably. The circuit is implemented in a customized POR built into a custom IC, and emulates the critical circuit transistors... | 02/23/2010 |
| 7616031 | Hard reset and manual reset circuit assembly A simple inexpensive hard reset and manual reset circuit assembly that provides a delay time during reset for enabling other matched electronic devices to have sufficient time to reach ready status. The circuit assembly includes a power source, a first resistor, a f... | 11/10/2009 |
| 7583114 | Supply voltage sensing circuit A supply voltage sensing circuit comprises an internal power supply circuit, which provides a constant output voltage regardless of the supply voltage. A delay circuit generates a delayed signal by delaying a variation in the output voltage. A divider circuit genera... | 09/01/2009 |
| 7564278 | Power-on reset circuit A circuit and a method generate a power-on reset signal having a leading part and a trailing part. The circuit includes a startup circuit generating the leading part of the power-on reset signal and a second circuit generating the trailing part of the power-on reset... | 07/21/2009 |
| 7463074 | Integrated circuit and method for generating a ready signal An integrated circuit comprises an input for receiving a supply voltage, a field-effect transistor with a gate which is connected to the input in such a manner that the gate voltage present at the gate is a function of the supply voltage, a voltage source for genera... | 12/09/2008 |
| 7449925 | Method for initialization of electronic circuit units, and electric circuit In a method for initializing at least one electronic circuit unit of an electric circuit, a supply voltage is applied to a power supply connection unit of the electronic circuit in order to supply electrical power to the electronic circuit unit. A reference signal i... | 11/11/2008 |
| 7449926 | Circuit for asynchronously resetting synchronous circuit A reset signal generation circuit for generating a reset signal synchronously or asynchronously to a clock signal in accordance with an operation state. An operation detection circuit detects operation of a CPU and generates an operation detection signal. A signal c... | 11/11/2008 |
| 7439781 | Power detection circuit for non-contact IC card or RFID tag A power detection circuit has a first comparator block, a charge controller block, and a second comparator block. The first comparator block compares a supply voltage with a first threshold value, and the charge controller block controls the charging of a first capa... | 10/21/2008 |
| 7436226 | Power-up detection circuit that operates stably regardless of variations in process, voltage, and temperature, and semiconductor device thereof A power-up detection circuit which operates in a stable way regardless of variation in PVT. The power-up detection circuit includes a bias circuit that generates a bias voltage in response to an external voltage, and a detection circuit that generates a detection si... | 10/14/2008 |
| 7432748 | Sequence-independent power-on reset for multi-voltage circuits A power-on reset (“POR”) methodology and circuit for an electronic circuit using multiple supply voltage domains asserts a reset signal upon ramp up of the first supply voltage signal, maintains the reset signal until all of the supply voltage signals have rampe... | 10/07/2008 |
| 7426667 | Apparatus and method for initializing an integrated circuit device and activating a function of the device once an input power supply has reached a threshold voltage An apparatus for generating a function activation signal to activate a function in an integrated circuit device comprises a power-on circuit receiving a power input and initializing and generating a test activation signal, a test circuit receiving the test activatio... | 09/16/2008 |
| 7421048 | System and method for multimedia delivery in a wireless environment A multimedia processing system and method thereof are provided. The system and method provide for synchronizing a first clock of a multimedia decoder of a first multimedia processing device to a second clock of a multimedia encoder of a second multimedia processing ... | 09/02/2008 |
| 7417476 | Power-on-reset circuit with output reset to ground voltage during power off A power-on reset circuit includes a first circuit arranged between a high voltage supply terminal (VDD) and a low voltage supply terminal (VSS), wherein the first circuit is configured to output a low-voltage reset signal at an output node (PORB) when VDD is powered... | 08/26/2008 |
| 7405602 | Reset control circuit and reset control method To present a reset control circuit and a reset control method used in a system including clock synchronous circuit, capable of resetting appropriately, especially in case of abnormality, when the clock signal is stopped or its period is longer as compared with the r... | 07/29/2008 |
| 7403051 | Determining voltage level validity for a power-on reset condition Determining voltage level validity for a power-on reset condition is described. A supply voltage is applied to an integrated circuit. An oscillating signal is generated responsive to the supply voltage applied. A counting occurs responsive to oscillations of the osc... | 07/22/2008 |
| 7403052 | Power-on detect by measuring thermal voltage A power-on detection circuit is arranged to cooperate with a thermal-voltage generator to determine when predictable circuit operation is achieved. The power-on detection circuit includes a comparator circuit and an inverter circuit. A power-on reset (POR) signal is... | 07/22/2008 |
