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| Number | Title | Issue Date |
| 7436233 | Normal mode and green mode pulse width modulation controller A PWM controller that effectively transitions between normal mode and green power mode is disclosed. A driver provides a normal drive signal during normal operation. A pulse width detector detects the pulse width of the PWM signal and if the pulse width drops below ... | 10/14/2008 |
| 7406135 | Reducing power consumption in signal detection Methods, systems, and media to time-share the signal detection between reference voltages for a data transmission are contemplated. Embodiments include a time-sharing detector that is designed to enable comparison of a first reference voltage and a second reference ... | 07/29/2008 |
| 7376201 | System and method for reducing crest factor of signal A new system and method is developed for reducing the crest factor of a signal. The system includes a large signal extraction module for receiving the input signal and the magnitude of the input signal to extract a large signal greater than a predetermined threshold... | 05/20/2008 |
| 7356716 | System and method for automatic calibration of a reference voltage A system and system for automatic voltage calibration is presented. A voltage calibration system includes three main units, which are a voltage level trimming unit, a trim detection unit, and a trim control unit. The three units work in conjunction with each other d... | 04/08/2008 |
| 7330390 | Noise resistant small signal sensing circuit for a memory device Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first c... | 02/12/2008 |
| 7319275 | Adhesion by plasma conditioning of semiconductor chip A plasma conditioning method of improving the adhesion between an integrated circuit chip, having active and passive surfaces, the active surface polymer-coated and having a plurality of electrical coupling members, and an insulating underfill material. The method c... | 01/15/2008 |
| 7319346 | Circuit and method for trimming integrated circuits A programmable after-package, on-chip reference voltage trim circuit for an integrated circuit having a plurality of programmable trim cells generating a programmed sequence. A converter is provided to convert the bit sequence into a trim current. The trim current i... | 01/15/2008 |
| 7263151 | High frequency loss of signal detector Methods and circuitry for implementing high speed loss-of-signal detectors for use in Gb/s telecommunication applications. The invention measures bit error rate (BER) of the incoming data by comparing the phase of the clock signal extracted from the incoming data wi... | 08/28/2007 |
| 7259607 | Integrated semiconductor memory with clock generation An integrated semiconductor memory includes a clock generator circuit driven by an external clock signal and a control circuit driven by the external clock signal. The clock generator circuit generates an internal clock signal with a first level if the external cloc... | 08/21/2007 |
| 7256632 | Pulse width modulation (PWM) controlling module and method for adjusting a PWM signal thereof A pulse width modulation (PWM) controlling module, includes: a PWM controller, a load detector, and an adjusting module. The PWM controller generates a PWM signal that is utilized for controlling a supply voltage applied to an electronic system. The load detector, c... | 08/14/2007 |
| 7245167 | Clock regulation apparatus and circuit arrangement Clock regulation apparatus for preventing a logic switching mechanism from operating incorrectly. The apparatus has a supply voltage input that receives a supply voltage, which is also applied to the logic switching mechanism, a comparison unit that outputs an error... | 07/17/2007 |
| 7224751 | Device and method for checking whether a signal with a predetermined frequency is being received A device and method are disclosed, whereby the normally complicated and difficult frequency determination is achieved by simply arranged and executed measures, namely by means of larger, smaller and/or equal comparisons and a counting of certain events. The inventio... | 05/29/2007 |
| 7218107 | Adaptive image homogeneity correction for high field magnetic resonance imaging An apparatus for producing a corrected reconstructed image from magnetic resonance imaging data acquired by a magnetic resonance imaging scanner (10) includes a reconstruction processor (44) that reconstructs a corrected reconstructed image from acquir... | 05/15/2007 |
| 7199370 | Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse generated upon a PET event detection as a fast linearly rising edge fo... | 04/03/2007 |
| 7200187 | Modulator for digital amplifier A digital modulator for driving a digital amplifier. The digital modulator has a subtractor which receives a digital input signal. A filter amplifier receives the output of the filter amplifier and is tuned to an idle frequency of the digital modulator. The digital ... | 04/03/2007 |
| 7191079 | Oscilloscope having advanced triggering capability An advanced trigger circuit includes two trigger decoders, each triggering on one of respective pluralities of continuous-time trigger events. In one embodiment, a programmable timer begins timing in response to an output signal of the first trigger decoder and gene... | 03/13/2007 |
| 7170335 | Driver circuit for driving a light source of an optical pointing device A driver circuit for driving a light source of an optical pointing device includes a first transistor coupled to the light source. The driver circuit includes a controller coupled to the first transistor for monitoring a first current through the light source, compa... | 01/30/2007 |
| 7143012 | Method and device for filtering signals produced by an accelerometer of the piezo-electric type, and application to a portable object such as a watch The invention concerns a method for filtering signals (Vin) generated by a piezo-electric type accelerometer in response to detection of a shock applied to an object to which the accelerometer is connected, this method characterised in that it ensures, du... | 11/28/2006 |
| 7133751 | Method and apparatus for detecting on-die voltage variations On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an on-die clock signal to be adjusted accordingly. ... | 11/07/2006 |
| 7124325 | Method and apparatus for internally trimming output drivers and terminations in semiconductor devices To trim interface devices on semiconductor devices, such as trimmable output drivers and terminations, a measurement current produced in the test apparatus is impressed onto the interface device, and a measurement voltage produced by the measurement current in the i... | 10/17/2006 |
| 7116154 | Low power charge pump A low power charge pump is disclosed. A pump driving node of a first pump stage is selectively coupled to a pump driving node of the subsequent pump stage. Subsequent to a transfer of charge from a first pump stage to a subsequent stage, the first and subsequent pum... | 10/03/2006 |
| 7113024 | Circuit module with high-frequency input/output interfaces The invention relates to a circuit module with high-frequency input/output interfaces, and in particular to a circuit realized on a chip, principally a monolithic integrated circuit having a phase-regulated circuit which is fed by externally applied voltages and an ... | 09/26/2006 |
| 7080106 | Random number generating method and random number generating device A random number generating method and a random number generating device are provided which are capable of generating uniform random numbers. Random pulses are generated by comparing a voltage level obtained by amplifying a voltage level of a thermal noise produced b... | 07/18/2006 |
| 7078957 | Internal voltage generator of semiconductor device comprising characteristic controller An internal voltage generator of a semiconductor device features a tuning unit, a characteristic controller and an internal voltage generating unit. The tuning unit receives a test mode signal, an external signal and a signal stored in an internal setup device, and ... | 07/18/2006 |
| 7061277 | Low power differential-to-single-ended converter with good duty cycle performance A differential-to-single-ended (DSE) converter receives a positive differential input and a negative differential input and generates a single-ended output. The DSE converter comprises: 1) a first comparator having a non-inverting input coupled to the positive diffe... | 06/13/2006 |
| 7061530 | Semiconductor integrated circuit Even when variation in transistor characteristic, resistance or the like occurs during manufacturing, a noise component is always minimized. Each of k clock phase difference generating circuits 16–18 shifts a phase of a basic clock signal ADCK1 by a ... | 06/13/2006 |
| 7053685 | Frequency signal enabling apparatus and method thereof The present invention discloses a frequency signal enabling apparatus and the method thereof for filtering noises and glitch when entering an operating mode from a power-saving mode. When the pulse width of the input frequency signal is smaller than the threshold pu... | 05/30/2006 |
| 7053667 | Single wire digital interface A single-wire digital interface for receiving digital data as a stream of pulses, with ‘1’ and ‘0’ logic levels represented with pulses having “first” and “second” pulse widths, respectively. A low-pass filter produces an output that increases at a k... | 05/30/2006 |
| 7049859 | Variable threshold comparator interface circuit A signal processing circuit includes a comparator having a fixed and a variable reference input for detection of a positive quasi-sinusoidal waveform pulse. A signal detection circuit includes a low pass input filter, a voltage input clamp, a variable detection thre... | 05/23/2006 |
| 7034515 | Instantaneous voltage lowering detection device An instantaneous voltage dip detection device is provided with: all-pass filter (2) for phase shifting a supply voltage waveform (11) by 90°; a comparator 7 that outputs a signal when the supply voltage waveform (11) is smaller than a th... | 04/25/2006 |
| 6960951 | Circuit for detecting a logic transition with improved stability of the length of a detection signal pulse A circuit for detecting a logic transition is proposed. The circuit includes an input terminal for receiving a logic signal, an output terminal for generating a detection signal, two capacitors, in a steady condition a first one of the capacitors and a second one of... | 11/01/2005 |
| 6940926 | Digital phase/frequency detector A digital phase/frequency detector capable of being implemented with on-chip components and configured to detect signals having small modulation indices. Transition points within the signal are detected and the width between successive transition points measured and... | 09/06/2005 |
| 6940326 | Frequency signal enabling apparatus and method thereof The present invention discloses a frequency signal enabling apparatus and the method thereof for filtering noises and glitch when entering an operating mode from a power-saving mode. When the pulse width of the input frequency signal is smaller than the threshold pu... | 09/06/2005 |
| 6904551 | Method and circuit for setup and hold detect pass-fail test mode A method and circuit thereof for performing setup and hold (SUAH) testing on integrated circuits including, but not limited to SRAM, utilizing a relatively low number of test vectors, obviating the conventional requirement of writing to and reading back from each an... | 06/07/2005 |
| 6859423 | Motor drive circuit for a disk drive apparatus When a circuit that is likely to cause noise is enabled, a control circuit turns on a switch so that an inverter will be formed by one P-channel MOSFET and two parallel-connected N-channel MOSFETs. This helps enhance the current capacity of the inverter on its N-cha... | 02/22/2005 |
| 6788111 | One cell programmable switch using non-volatile cell A one transistor, non-volatile programmable switch comprises a first node and a second node coupled with corresponding circuit elements in an integrated circuit. A single, non-volatile programmable transistor having a drain coupled to one of the first node and secon... | 09/07/2004 |
| 6775809 | Technique for determining performance characteristics of electronic systems A technique for determining performance characteristics of electronic systems is disclosed. In one exemplary embodiment, the technique may be realized as a method for determining performance characteristics of electronic systems. The method includes the steps of mea... | 08/10/2004 |
| 6762636 | Circuit and method for adjusting duty cycle of a high speed, low swing output signal A circuit, system, and method is provided for regulating the pulse width and/or duty cycle of a signal indirectly or directly used to drive, e.g., a transmitter. The load of the transmitter can be, for example, an optical signal transmitter. The circuit includes a f... | 07/13/2004 |
| 6617877 | Variable data width operation in multi-gigabit transceivers on a programmable logic device A transmit variable-width interface can be programmed to convert an electronic digital data path that is either 1N, 2N, 4N, or 8N bits wide into a data path that is 2N bits wide, either by serializing bits (4N- or 8N-bit cases), re-clocking bits (2N-bit c... | 09/09/2003 |
| 6545509 | Voltage measurement circuit using an improved comparator A comparator circuit with comparing means for comparing first and second voltages, has current source circuitry for providing current to said comparing means, said current source circuitry having an input for receiving a clock signal having first and seco... | 04/08/2003 |
