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| Number | Title | Issue Date |
| 7940089 | Peak-detect-and-hold circuit and method thereof using ramp sampling technique A peak detect-and-hold circuit and method thereof using ramp sampling technique includes utilizing two sampling signals of different slopes to sample an input voltage for respective tracking voltages; comparing the held tracking voltage sampled with the sampling sig... | 05/10/2011 |
| 7633320 | Comparator circuit A comparator circuit according to an embodiment of the present invention includes a comparator configured to compare an input signal voltage with a reference voltage obtained by smoothing the input signal by use of a resistor and a capacitor, and output a result of ... | 12/15/2009 |
| 7633319 | Digital QP detecting apparatus, spectrum analyzer having the same, and digital QP detecting method A QP detection unit includes digital circuit elements. There is provided a digital QP detector which detects an electric power signal Vi, which is an input signal, and outputs a detection signal Vo. The digital QP detector includes a register which records input dig... | 12/15/2009 |
| 7576570 | Signal amplitude detection circuitry without pattern dependencies for high-speed serial links Precision amplitude detection circuitry without pattern dependencies is provided that includes rectifier circuitry to output a rectified voltage signal and delay circuitry to send one or more delayed or phase-shifted versions of a differential signal input to the re... | 08/18/2009 |
| 7414439 | Receiver for a switched signal on a communication line A receiver for receiving a switched signal on a communication line (1), such as a LIN bus, the signal varying between first and second voltage levels (sup, ground). The receiver comprises a comparator (31, 54) responsive to the relative values of the r... | 08/19/2008 |
| 7368956 | Data slicer with a source-degeneration structure A data slicer with a source-degeneration structure is described. In particular, this invention can be implemented in a FM demodulation system. It located at the end of the demodulator. The data slicer can slice a signal transmitted through air and demodulates the sa... | 05/06/2008 |
| 7366224 | System and method for the detection of presence of a signal and its synchronization, for a frequency hopping system working in a disturbed environment A method and device are disclosed for the detection and synchronization of a signal in a frequency-hopping system. The method has a step, for each frequency F(1) . . . F(M), of selecting the K samples corresponding to the greatest values of the signal, and th... | 04/29/2008 |
| 7340186 | Discrimination phase margin monitor circuit, transmitting/receiving device and communication system The discrimination phase margin monitor circuit (10) of the present invention comprises a first discrimination circuit (11 and 12) discriminating an input data signal using a clock signal extracted from the input data signal, a second discrimina... | 03/04/2008 |
| 7302055 | Discharging envelope detector A receiver to detect pulses on a home phone wiring network using envelope detection. The receiver comprises an integrating capacitor charged by a first current source responsive to a differential signal propagated on the wiring network, and discharged by a FET in co... | 11/27/2007 |
| 7252085 | Device for inhalation therapy The invention relates to a device for inhalation therapy. Said device comprises an aerosol-producing device for spraying a liquid (3), preferably comprising a membrane (1), a support unit (6), an electromechanical transducer unit (7), and... | 08/07/2007 |
| 7236014 | Circuit and method for peak detection of an analog signal A fully differential peak detection circuit includes programmable sensitivity and an autozero function. The peak detector has a fully differential charge-coupled analog signal path. The entire analog signal path is autozeroed upon enable and/or in response to sensin... | 06/26/2007 |
| 7224191 | Differential signal detector methods and apparatus Circuitry and methods allow signal detection based entirely on differential voltage pairs. An incoming differential data signal is processed by separate full-wave rectifiers to extract high and low peak voltage envelopes. The rectifiers utilize negative feedback to ... | 05/29/2007 |
| 7203024 | Method of testing servo burst signals of hard disk drive and recording medium adapted therefor A method of testing quality of a servo burst signal recorded on a hard disk drive and a recording medium adapted therefor, the hard disk drive including a plurality of sectors within one track and the burst signals for servo control recorded radially on each sector.... | 04/10/2007 |
| 7180335 | Peak detector A diode-less peak detector comprises first and second comparators (U1, U2) for comparing an input signal (V) with a peak signal. The first comparator (U1) is connected such that the peak signal functions as a reference and the second comparator ... | 02/20/2007 |
| 7154975 | Receiving apparatus and synchronizing method for a digital telecommunication system A receiving apparatus (1) for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus (1). The receiving apparatus (1) includes a receiver (2, 3) for receiving a referen... | 12/26/2006 |
| 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 |
| 7099367 | Method and apparatus for converting RF signals to baseband The present invention relates to the conversion of signals from RF to baseband using transition functions, or edge functions. These functions typically transition from positive to negative, or from negative to positive, synchronously with the transition of the recei... | 08/29/2006 |
| 7098835 | Analog/digital conversion method and analog/digital conversion circuit Paying attention to the difference between a subsequently inputted analog signal and a reference signal which is an analog signal converted to the digital signal immediately before for instance, changing timing dynamically for converting the analog signal to the dig... | 08/29/2006 |
| 7076003 | Constellation design for modem receiver A method of forming a constellation design, and a receiver having both a processor that generates the constellation design and having a comparator. The particular constellation design described herein reduces errors resulting from a noisy communication channel. The ... | 07/11/2006 |
| 7049856 | High speed peak amplitude comparator Various methods and circuits for implementing high speed peak amplitude comparison. The invention achieves higher speed of operation by eliminating the slow feedback loop commonly employed in peak detection. In one embodiment, the invention directly compares a signa... | 05/23/2006 |
| 7015729 | Apparatus and method for sample-and-hold with boosted holding switch A pipelined sample-and-hold circuit is provided. The circuit is pipelined such that processing of a held signal can continue into the next sample phase. Also, the pipelined sample-and-hold circuit includes a hold switch. The hold switch includes a boosted switch and... | 03/21/2006 |
| 6977529 | Differential clock signal detection circuit A semiconductor integrated circuit includes a first clock input and a second clock input to receive elements of a differential clock signal. Each clock signal element has a logic state. The circuit generates an output activation signal that depends on the states of ... | 12/20/2005 |
| 6972620 | Post amplifier array integrated circuit An optical communication system that includes a multi-channel post amplifier assembly with flexible output configurations for amplifying optical-to-electrical converted signals on selectable groups of amplifier channels is provided. The post amplifier assembly, when... | 12/06/2005 |
| 6965257 | Multistage level discrimination circuit A level discrimination circuit includes two offset compensation circuits. Each offset compensation circuit receives a differential pair of input signals, detects their peak values, and adds the peak value of each input signal to the other input signal, thereby gener... | 11/15/2005 |
| 6956905 | Peak detector circuit A balanced peak detector circuit adjusts differential voltage signals. In one embodiment, the peak detector uses competing current paths to provide a charging current to a storage capacitor. The charge on the storage capacitor is used to adjust either a transconduct... | 10/18/2005 |
| 6922084 | Ultra-low power programmable timer and low voltage detection circuits An Ultra-low power voltage detection circuit is implemented in a digital integrated circuit to device to provide a basic timer, programmable timer and programmable low voltage detection (PLVD) using a single connection of the digital integrated circuit device and a ... | 07/26/2005 |
| 6842050 | Current-mode circuit for implementing the minimum function The present invention comprises a circuit consisting of four transistors (101-104) and an optional clamping Zener (107) arranged such that the current drawn through a load (120) is equal to the lesser of an input current (106) and a refer... | 01/11/2005 |
| 6785639 | Signal processing apparatus A threshold value at a side of a bottom value of a sensor signal is renewed by a value calculated by multiplying a minimum value of a deviation between the bottom value and a reference value for the predetermined period of time by a ratio when the minimum value of t... | 08/31/2004 |
| 6748007 | Method of processing a pulse response with an adaptive threshold and corresponding receiver A method of processing a pulse response with an adaptive threshold and corresponding receiver. According to the method, an adaptive threshold is calculated that is a function of a maximum reached by the pulse response, noise, and a coefficient adjustable between 0 a... | 06/08/2004 |
| 6744286 | System and method for comparator threshold adjustment A system and method are provided for compensating a comparator threshold level. The method comprises: accepting an input signal with an ac component; lowpass filtering the input signal to generate the input signal average voltage; accepting the input signal average ... | 06/01/2004 |
| 6727689 | Magnetic-effect sensing apparatus with signal thresholding An apparatus and method for detecting gear features is provided. The apparatus includes a magnetic-sensing element, a thresholding module, and an output module. The magnetic-sensing element may provide a sensor-output signal indicative of the presence of a gear feat... | 04/27/2004 |
| 6664900 | Programmable transducer device A programmable transducer device that includes a signal source (e.g., a sensor) and a transducer output to output a transducer output signal and to receive a control signal from an external control unit. The control signal is superposed on the transducer ... | 12/16/2003 |
| 6653870 | Signal detection circuit, data transfer control device and electronic equipment There is provided a signal detection circuit capable of detecting a signal at a high speed having small amplitude, and a data transfer control device and electronic equipment using the same. The signal detection circuit includes a peak hold circuit, a con... | 11/25/2003 |
| 6639656 | Distance measuring apparatus Disclosed is a distance measuring apparatus for measuring a distance to a target object also its shape precisely without influence of noise, which is applied to a invader monitoring system. This apparatus comprises a clock signal generator unit, a modulat... | 10/28/2003 |
| 6542009 | Signal hold circuit A peak hold circuit that can operate to follow changes in peak value even if the changes are abrupt. The peak hold circuit (1) of the present invention has current control circuit (31), auxiliary switch element (25), and auxiliary constant current circuit... | 04/01/2003 |
| 6538478 | Noise immune peak detector A peak detector circuit for detecting a peak output signal including an input circuit for inputting an input signal, a comparator for comparing the input signal and said peak output signal to generate a difference signal, a current source to generate a cu... | 03/25/2003 |
| 6359939 | Noise-adaptive packet envelope detection A method and concomitant apparatus for adapting a logic threshold level in response to a background noise level in an information signal. Information signal excursions beyond the logic threshold are indicative of the presence of an information packet in t... | 03/19/2002 |
| 6335948 | Amplitude detector and equalizer The present invention provides an amplitude detector comprising: a first peak holding means for generating a first peak voltage signal for holding a peak voltage of a detected signal; a differential signal generating means for generating a differential si... | 01/01/2002 |
| 6211670 | Magnetic sensing device for outputting a digital signal as a dynamic representation of an analog signal A magnetic sensing device comprising a magnetic sensor and a digital circuit is disclosed. The magnetic sensor is operable to output an analog signal as an indication of any movement of an object. The digital circuit can include a dynamic reference thresh... | 04/03/2001 |
| 6198310 | Circuit arrangement for monitoring a clock-timed load A circuit arrangement for monitoring a load operated with a clock signal is provided. The circuit arrangement may be applied to the field of automotive engineering. The circuit arrangement includes a comparator having at least two inputs and one output. T... | 03/06/2001 |
