Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8026743 | Envelope detector for high speed applications An envelope detecting circuit is provided. The envelope detecting circuit comprises a source degeneration circuit that amplifies an input differential signal, a differential gain stage that supplies a voltage proportional to the amplified signal, a potential hold ci... | 09/27/2011 |
| 7863940 | Envelope detector for high speed applications An envelope detecting circuit is provided. The envelope detecting circuit comprises a source degeneration circuit that amplifies an input differential signal, a differential gain stage that supplies a voltage proportional to the amplified signal, a potential hold ci... | 01/04/2011 |
| 7394295 | Sense amplifier The invention relates to a sense amplifier comprising the following element: a first current mirror unit coupled to a high voltage source, outputting a first current and a second current according to a first reference current, wherein the second current is twice the... | 07/01/2008 |
| 7382166 | Signal amplification device A signal amplification device which uses inexpensive standard CMOS and yet is capable of high-accuracy threshold setting. An offset voltage generator detects the direct-current level of an input signal, and generates a positive or negative offset voltage signal. A p... | 06/03/2008 |
| 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 |
| 7362622 | System for determining a reference level and evaluating a signal on the basis of the reference level A circuit exhibits a signal input, means for determining a reference level on the basis of properties of a signal received at the signal input. In addition, the circuit further exhibits means for evaluating the signal on the basis of the reference level. ... | 04/22/2008 |
| 7355388 | Rotation detecting device using magnetic sensor A rotation detecting device is provided that detects the rotation of a rotating object by means of a biasing permanent magnet and multiple sensor chips. The sensor chips are disposed on front and back sides of a mounting chip along the rotation direction of the rota... | 04/08/2008 |
| 7348808 | Method and apparatus for detection of high-speed electrical signals A signal detector includes, in part, first and second peak detectors, a comparator and an amplifier. The first peak detector generates a first signal in response to receiving an incoming signal. The second peak detector generates a second signal in response to recei... | 03/25/2008 |
| 7348807 | Electric circuit for providing a selection signal An electric circuit for providing a selection signal being used to select a control value of a control variable which oscillates, at steady state, about a reference value about a first control value and a second control value with a first period duration comprises a... | 03/25/2008 |
| 7308044 | Technique for receiving differential multi-PAM signals A technique for receiving differential multi-PAM signals is disclosed. In one particular exemplary embodiment, the technique may be realized as a differential multi-PAM extractor circuit. In this particular exemplary embodiment, the differential multi-PAM extractor ... | 12/11/2007 |
| 7271579 | AC signal level detection circuit An AC voltage generated by an AC power source 1 is rectified by a full-wave rectifying circuit 2, which generates a rectified voltage. An internal regulator 33 performs waveform shaping of the rectified voltage. A comparator 42 compares t... | 09/18/2007 |
| 7250795 | High-speed, low-power input buffer for integrated circuit devices A high-speed, low-power input buffer for an integrated circuit device in which the input voltage (VIN) is coupled to both a pull-up and a pull-down transistor. In accordance with a specific embodiment, the input buffer utilizes a reference voltage input (VREF) durin... | 07/31/2007 |
| 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 |
| 7212041 | Weighted multi-input variable gain amplifier A limiting amplifier (LIA), used for example in high speed optical communication systems, includes a loss of signal (LOS) feature that may provide improved optical receiver performance and includes wide range user-programmable thresholds for generating analog loss o... | 05/01/2007 |
| 7209103 | Liquid crystal projector A projector includes a liquid crystal display device has a liquid crystal display panel and a display control device coupled to the liquid crystal display panel. The display control device is composed of a first section for receiving an externally supplied video sig... | 04/24/2007 |
| 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 |
| 7167692 | High frequency peak detector and applications thereof A high frequency peak detector includes an operational amplifier, a transistor, a capacitor, and an average to peak conversion module. A first inverting input of the operational amplifier receives a high frequency input signal, a second inverting input of the operat... | 01/23/2007 |
| 7161392 | Comparator feedback peak detector There is disclosed a circuit and a process for detecting peak-to-peak voltage. The circuit comprises a first comparator having an output coupled to a first capacitor, a non-inverting input for receiving a high frequency AC waveform, and an inverting input, a second ... | 01/09/2007 |
| 7157924 | Method and apparatus for on-die voltage fluctuation detection An on-die device is provided to measure/detect voltage fluctuations. This may include a control unit to generate differential reference signals (such as differential current signals), a first detector unit and a second detector unit. The differential reference signa... | 01/02/2007 |
| 7125093 | Recording-head substrate, recording head, and recording apparatus A recording-head substrate including a recording element, a driving circuit for driving the recording element, a temperature-detecting element for measuring the temperature of the recording-head substrate by outputting at least one of a maximum output voltage and a ... | 10/24/2006 |
| 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 |
| 7123058 | Signal detecting circuit and method therefor A stable, low power consumption signal detecting circuit may include: a delay circuit, which receives a base clock signal and generates multiple versions thereof having time delay relationships thereto, respectively; dual amplifiers, which detect valid ones of input... | 10/17/2006 |
| 7120408 | Differential signal squelch detection circuit and method An electrical circuit detects a “squelch,” or “out-of-band,” state of a differential signal pair having a positive (“p”) signal line and a negative (“n”) signal line. In one embodiment of the invention, a first and a second comparator each have posit... | 10/10/2006 |
| 7116728 | Quadrature alignment in communications receivers using dual delay lines The present invention, generally speaking, takes advantage of the properties of quadrature signals to achieve precise quadrature alignment in a simple fashion. In particular, the expectation of the product of quadrature signals is zero. In accordance with the teachi... | 10/03/2006 |
| 7109978 | Object position detector with edge motion feature and gesture recognition A method of generating a signal comprising providing a capacitive touch sensor pad including a matrix of X and Y conductors, developing capacitance profiles in one of an X direction and a Y direction from the matrix of X and Y conductors, determining an occurrence o... | 09/19/2006 |
| 7092332 | Optical disk and information reproducing apparatus An optical disk for a sampled servo system is provided with a servo area having a synchronization pit serving as a synchronization reference of reproduction; and a data area having a plurality of data pits which records the digital data and a tracking pit which serv... | 08/15/2006 |
| 7061278 | Differential narrowband peak detector A single-ended peak detector is typically used to determine the peak of a differential RF signal. This single-ended peak detector cannot accurately measure the peak because of the common mode component of the RF signal. To solve this problem, a differential peak det... | 06/13/2006 |
| 7053674 | Track-and-hold peak detector circuit A track-and-hold peak detector circuit, which can operate at low input signal frequencies, includes a capacitor to hold a peak voltage of the input signal and logic circuitry that reduces an effect of leakage current into or out of the capacitor, and therefore, prov... | 05/30/2006 |
| 7053669 | Method for determining the beginning of a second in the signal of a time-signal transmitter A method for detecting the beginning of the dips of the amplitudes in the output signal of a time signal receiver identifying the beginning of a second in the time signal. The output signal of the receiver for the time signals is sampled N-times per second. The samp... | 05/30/2006 |
| 7049855 | Area efficient waveform evaluation and DC offset cancellation circuits Analog circuits for providing one or more waveform parameters, e.g., the DC offset or average, of an analog input signal. Separate biasing is not necessarily required. Some embodiments comprise field-effect-transistors (FETs) configured in various diode-connected co... | 05/23/2006 |
| 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 |
| 7043223 | Super-regenerative radio frequency receiver and its data receiving method A high sensitivity of a Super-Regenerative Radio Frequency Receiver and its method is provided in the embodiment of the present invention. By using a common-mode feedback circuit and by replacing the rectifier with a feedback integral-rectifier, the rectifier, the l... | 05/09/2006 |
| 7042273 | Electronic array having nodes and methods An electronic network comprises a plurality of nodes that each comprise a current input and a current output, and at least one transistor arranged as a first current mirror and a second current mirror. The first and the second current mirrors are complementary to ea... | 05/09/2006 |
| 7002378 | Valid data strobe detection technique A valid data strobe detection technique detects a valid data strobe contained within a strobe signal by first determining whether a measured voltage level of the strobe signal is above or below a preselected threshold level. A time period in which the measured volta... | 02/21/2006 |
| 6977531 | RF signal peak detector A method for determining a peak value of a radio frequency (RF) signal begins by receiving an RF signal. The method continues by high pass filtering the RF signal to produce a first input. The method continues by rectifying the first input signal with respect to a r... | 12/20/2005 |
| 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 |
| 6949962 | Device for reducing the lag and the dark current in a particle detector, in particular a photon detector The assembly formed by the amplifier 34, the transistor 36 and the capacitor 28 fulfills the function of the amplifier 8 and the impedance 10 of the device shown in FIG. 4. ... | 09/27/2005 |
| 6933769 | Bandgap reference circuit A reference circuit generates a reference voltage from a supply voltage. The reference circuit includes a current generating unit for generating generated currents. An output unit of the reference circuit generates the reference voltage based on the generated curren... | 08/23/2005 |
| 6888381 | 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... | 05/03/2005 |
