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| Number | Title | Issue Date |
| 7432747 | Gate driving circuit The present invention relates to a gate driving circuit, comprising a driver control circuit, a voltage following bias circuit, a pull up circuit and a MOS transistor. The driver control circuit receives an active signal and generates a pull up signal or a pull down... | 10/07/2008 |
| 7421053 | Fast clock acquisition enable method using phase stir injection to PLL for burst mode optical receivers Systems and methods for aligning the phase of a PLL with an incoming data signal. In one embodiment, when a data signal is received in a PLL, a phase perturbation signal is generated and injected into the PLL. The PLL then performs a phase alignment procedure to loc... | 09/02/2008 |
| 7372318 | Precision, low drift, stacked voltage reference A voltage reference circuit receives an input voltage at a first port and a time varying input signal at a second port. The voltage reference circuit includes a switching circuit that is responsive to the first and second ports, and that generates an AC signal from ... | 05/13/2008 |
| 7365587 | Contention-free keeper circuit and a method for contention elimination A contention-free keeper circuit including a keeper circuit having a first node and a second node, is provided. The contention-free keeper circuit may further include a delay element for providing time delay. The contention-free keeper circuit may further include a ... | 04/29/2008 |
| 7350974 | Temperature detection circuit A temperature detection circuit according to the present invention includes a potential generating part and a temperature detection part. The potential generating part generates a potential according to an environmental temperature, and the temperature detection par... | 04/01/2008 |
| 7321257 | Semiconductor device capable of detecting an open bonding wire using weak current An IC chip has a series regulator built therein. A battery voltage is applied to an input pin. An output of a transistor constituting the series regulator occurs at an output pin via an output pad. A feedback signal derived from an output voltage occurs at an end of... | 01/22/2008 |
| 7274322 | Systems and methods for automatic gain control for multichannel receivers Apparatus and methods for performing automatic gain control in a radar system. One embodiment of the system includes an attenuator that controls gain of signals received from a radar receiver. A digital signal processor determines coarse gain correction based on dig... | 09/25/2007 |
| 7260494 | Eclipz wiretest for differential clock/oscillator signals A method, apparatus, and computer program product in a data processing system for testing differential clock or oscillator signals. A method is comprised of the following steps: A first single-ended receiver is connected to a positive leg of a differential pair, and... | 08/21/2007 |
| 7250792 | High speed differential pre-driver using common mode pre-charge In general, the embodiments introduce a pre-charge state between an idle state (when no data in being transmitted) and an active state (when data is being transmitted). In the pre-charge state, both differential signals are pre-charged to the common mode voltage, wh... | 07/31/2007 |
| 7212640 | Variable attack and release system and method Variable attack and release system and method are disclosed for dynamically modifying the various elements of the system, including modifying compander response time to dynamically adjust for changing parameters such as environmental or input signal changes, to main... | 05/01/2007 |
| 7190292 | Input level adjust system and method A method of matching input amplitudes in a system wherein one or more of a plurality of inputs may be selected, with each input capable of having different characteristics, involving selecting an input signal and mapping the input signal to a predetermined signal am... | 03/13/2007 |
| 7180359 | Logarithmic temperature compensation for detectors The intercept of a logarithmic amplifier is temperature stabilized by generating a signal having the form H log H where H is a function of temperature such as T/T0. The first H factor is cancelled, thereby generating a correction signal having the form Y ... | 02/20/2007 |
| 7161379 | Shunted current reduction One disclosed method comprises drawing current from a termination voltage supply and through a termination voltage delivery network by termination circuitry in response to a first signal on one or more lines terminated by the termination circuitry, shunting current ... | 01/09/2007 |
| 7126384 | Peak detection circuit with double peak detection stages A peak detection circuit with double peak detection stages includes an analog peak detector, an analog-to-digital converter (ADC), and a digital peak detector. The analog peak detector receives an analog input signal, detects a peak value of the analog input signal ... | 10/24/2006 |
| 7116160 | Booster A booster includes a boosting circuit and a feedback control circuit. The boosting circuit is used to boost an input voltage into a predetermined output voltage; the feedback control circuit detects the output voltage of the boosting circuit and stops boosting the v... | 10/03/2006 |
| 7091786 | Linear-in-decibel variable gain amplifier A linear-in-decibel variable gain amplifier used for receiving an input voltage and generating an output voltage according to a first controlling voltage and a second controlling voltage. A voltage gain, that is, the ratio between the output voltage and the input vo... | 08/15/2006 |
| 7088057 | Apparatus, system, and method for inducing an electrical current for use by an electronic device An apparatus, system, and method are disclosed for inducing an electrical current for use by an electronic device. The apparatus includes an inductor and an interface coupling the inductor to an electronic device. The inductor comprises a continuous wire looped spir... | 08/08/2006 |
| 7075368 | Linear-in-decibel variable gain amplifier A variable gain amplifier having a linear decibel-scale gain comprises an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage acco... | 07/11/2006 |
| 7027981 | System output control method and apparatus Output control system and method includes calculating gain for an input signal, detecting a predetermined condition, and modifying the gain calculation in accordance with one or more kneepoints to provide a varying output signal. A companding ratio is then establish... | 04/11/2006 |
| 6998874 | Method and apparatus for the transmission of differential signals A method is described for transmitting signals on a pair of lines, whereby the signals pass alternately from a low level to a high level. The signals on one line of the pair transmit a complementary level of signals to the other line of the pair, whereby signal driv... | 02/14/2006 |
| 6844769 | Drive circuit The amplitude expansion circuit as a main part of a drive circuit includes: a VM DC power supply line to which a voltage VM is applied; a VH DC power supply line to which a voltage VH roughly twice as high as the voltage VM is applied; an inverter circuit receiving ... | 01/18/2005 |
| 6819145 | High speed differential pre-driver using common mode pre-charge In general, the embodiments introduce a pre-charge state between an idle state (when no data in being transmitted) and an active state (when data is being transmitted). In the pre-charge state, both differential signals are pre-charged to the common mode voltage, wh... | 11/16/2004 |
| 6636109 | Amplification circuit with constant output voltage range An amplification circuit of the present invention includes a first MOS transistor having a gate to which a first input terminal for inputting a positive logic input signal or a reference potential is connected and a drain to which a first load is connecte... | 10/21/2003 |
| 6552591 | Method and apparatus for processing a wide dynamic range signal Method and apparatus are provided for processing a wide dynamic range analog signal which comprises a compressive nonlinear transfer function responsive to the average amplitude of the signal without feedback along the signal path. The invention employs f... | 04/22/2003 |
| 6549605 | Limiting loss in a circuit A circuit for limiting loss in a second circuit. The circuit may include a first timer, a second timer and one or more logic gates. The first timer may produce a first output in a given state if the duration of a pulse for use with the second circuit reac... | 04/15/2003 |
| 6486731 | Semiconductor integrated circuit device capable of externally monitoring internal voltage A test on a desired internal voltage is easily and accurately conducted without increasing current dissipation or the number of pads. A driving circuit receiving a reference voltage from a reference voltage generating circuit has a high input impedance an... | 11/26/2002 |
| 6326817 | Circuit for suppressing a common mode component in a signal from a CAN communication bus The common mode component in the difference signal on the bus terminals (2, 4) of a CAN bus is counteracted by four transistors (M1-M4) connected between the supply terminals (28, 32) and a center tap (16) of a voltage divider (6A, 6B, 8, 10, 12A, 12B) be... | 12/04/2001 |
| 6323707 | Output signal level control circuit in a semiconductor device A pulse signal output circuit charges and discharges a capacitor in response to a clock signal and outputs a pulse signal having a pulse width determined by a time for charging and discharging the capacitor. A control signal generation circuit outputs a c... | 11/27/2001 |
| 6232819 | Semiconductor integrated circuit device and low-amplitude signal receiving method When signal transmission is performed between two semiconductor integrated circuit devices in synchronization with a clock signal using a small signal amplitude relative to an operating voltage of the two semiconductor integrated circuit devices, a receiv... | 05/15/2001 |
| 6232817 | Temperature stabilization of a predistorter with voltage supply A method of stabilizing the working point of a predistorter diode of a predistorter for an optical modulator as protection from temperature fluctuations, whereby the predistorter diode is supplied with a temperature-dependent voltage in order to adjust th... | 05/15/2001 |
| 6201428 | 5-volt tolerant 3-volt drive push-pull buffer/driver A buffer/driver system that operates on an input signal to provide an output signal with a sufficient capability at an output terminal to drive a particular interface is disclosed. The input signal is operated on to produce the output signal that has wide... | 03/13/2001 |
| 6181188 | Apparatus for stabilizing transmission output An apparatus stabilizes the level of an output signal (b) of an output control unit (1) according to a control signal (c). When a power source is turned on or when burst signal transmission starts, an input signal (a) to the output control unit (1) rises.... | 01/30/2001 |
| 6154088 | Clocking scheme and charge transfer switch for increasing the efficiency of a charge pump or other circuit An efficient charge pump circuit. Increased efficiency compared to previous pump circuits is achieved through use of a novel charge transfer switch and associated clocking scheme which reduces the supply current required to operate the charge pump. Instea... | 11/28/2000 |
| 6133778 | Anti-fuse programming circuit with cross-coupled feedback loop An anti-fuse programming circuit comprising an operation switching part for precharging the anti-fuse programming circuit with a half voltage to operate it, an anti-fuse connected to the operation switching part, the anti-fuse being subjected to a dielect... | 10/17/2000 |
| 6087879 | Semiconductor integrated circuit device and low-amplitude signal receiving method When signal transmission is performed between two semiconductor integrated circuit devices in synchronization with a clock signal using a small signal amplitude relative to an operating voltage of the two semiconductor integrated circuit devices, a receiv... | 07/11/2000 |
| 6072840 | High speed differential CMOS sine-wave receiver with duty-cycle control means A system and method for providing a high speed differential receiver circuit is disclosed. The system comprises a source device. A receiver is coupled to the source device. The receiver receives first and second differential signals at a first input and a... | 06/06/2000 |
| 6055587 | Integrated circuit SCSI I/O cell having signal assertion edge triggered timed glitch filter that defines a strobe masking period to protect the contents of data latches An integrated circuit, configured for connection to an SCSI bus includes a strobe assertion edge triggered glitch filter. Input data latches are controlled by the strobe assertion edge gated with a strobe enable signal and the inverted and delayed Q outpu... | 04/25/2000 |
| 6052018 | Small amplitude signal output circuit A small amplitude signal output circuit comprises an output section for receiving a logic signal to output a small amplitude signal, a level sense circuit for sensing the rise or fall of an output voltage at an output terminal, and a level control circuit... | 04/18/2000 |
| 6028467 | Differential output circuit A differential output circuit has first and second output lines and an output impedance connected between the first and second lines. The output impedance includes an active device (e.g., a field effect transistor) having a control input for receiving a c... | 02/22/2000 |
| 5994942 | Buffer circuit with wide dynamic range A buffer circuit including current sources and switches to connect and disconnect current sources to an output node. The switches are controlled by voltage detectors for comparing an input signal with a reference level. When the reference level is a prede... | 11/30/1999 |
