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!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7945706 | Signal receiving circuit adapted for multiple digital video/audio transmission interface standards The invention provides a signal receiving circuit applied to multiple digital video/audio transmission interface standards. The signal receiving circuit includes at least an input interface for receiving an input signal, and at least an interface circuit. The input ... | 05/17/2011 |
| 7796533 | Apparatus and method for bandwidth control An apparatus and method for bandwidth control is provided to keep the bandwidth more stable. The apparatus includes an interval signal generator, a storage unit, and a control circuit. The interval signal generator outputs a plurality of interval signals which are e... | 09/14/2010 |
| 7787578 | Method and apparatus for synchronizing multimedia data stream A method and an apparatus for synchronizing a data stream are disclosed. The method includes: decoding the data stream to generate a decoded data stream and program clock references; generating a local clock reference; generating a simulated clock reference accordin... | 08/31/2010 |
| 7786802 | Output stage circuit and operational amplifier thereof The present invention relates to an output stage circuit and an operational amplifier thereof. In the output stage circuit, one of a gate of a transistor is coupled to a gate of a bias transistor and a level shifter in response to a small signal outputted from an am... | 08/31/2010 |
| 7786800 | Class AB amplifier A class AB amplifier includes: a voltage amplifier stage operating off a first source voltage, and amplifying a differential input voltage to produce a first amplified voltage; a level shift stage coupled to the voltage amplifier stage and adjusting a direct current... | 08/31/2010 |
| RE41598 | Impedance matching circuit The present invention discloses an impedance matching circuit for facilitating impedance matching between the characteristic impedance of a cable and the input impedance at the input terminal of a receiver for data transmission comprising: a first transistor, a seco... | 08/31/2010 |
| 7782160 | Central frequency adjustment device and adjustable inductor layout using trimmable wire The present invention provides a central frequency adjustment device and adjustable inductor layout; wherein, the central frequency adjustment device is applied in an inductor/capacitor tank (LC tank) for adjusting the central frequency of the LC tank. The device co... | 08/24/2010 |
| 7779338 | Deinterleaver and dual-viterbi decoder architecture Pairs of parallel Viterbi decoders use windowed block data for decoding data at rates above 320 Mbps. Memory banks of the deinterleavers feeding the decoders operate such that some are receiving data while others are sending data to the decoders. Parallel input stre... | 08/17/2010 |
| 7779227 | Memory management apparatus and method for optical storage system A memory management apparatus and a related method thereof for accessing digital versatile disc(DVD) data stored in a memory device are disclosed. The memory management apparatus includes an address mapping module, coupled to a bus, for receiving a logic address fro... | 08/17/2010 |
| 7778609 | Power consumption control methods applied to communication systems, and related devices A power consumption control method applied to a communication system adjusts the power consumption of a portion of circuit in the communication system according to a transmission distance between the communication system and another communication system. Another pow... | 08/17/2010 |
| 7778375 | Clock generator and data recovery circuit using the same A clock generator and a data recovery circuit. The clock generator includes a voltage control oscillator (VCO) for generating a sampling clock and multi-phase clocks, a multiplexer for receiving the multi-phase clocks and selecting one of the multi-phase clocks to g... | 08/17/2010 |
| 7778370 | Frame synchronization Frame synchronization methods and systems suited for packet communications systems, and particularly time frequency hopping packet communication systems, are disclosed. Frame synchronization is performed by performing a first correlation on information of received s... | 08/17/2010 |
| 7778321 | Method for adjusting parameters of equalizer A method for adjusting parameters of an adaptive equalizer makes use of a transmitted signal received by a receiving end to adjust parameters of an adaptive equalizer. First, signal strengths of a first frequency band and a second frequency band in the transmitted s... | 08/17/2010 |
| 7778209 | Passive echo cancellation device and signal transmission method thereof The present invention refers to a passive echo cancellation device for use in a full-duplex communication system and its signal transceiving method. The full-duplex communication system comprises a transmitting end for sending a transmit signal to a wiring interface... | 08/17/2010 |
| 7777925 | Apparatus and method for color adjustment The present invention relates to a color adjustment apparatus and a method thereof. The color adjustment apparatus according to the present invention includes a calculation unit and an adjustment unit. The calculation unit receives an input color signal, and divides... | 08/17/2010 |
| 7777534 | Fraction-N frequency divider and method thereof A fraction-N frequency divider includes a multi-phase clock generator, a first phase selector, a second phase selector, a glitch-free multiplexer, a control circuit, and a counter. The multi-phase clock generator is used for generating a plurality of clock signals w... | 08/17/2010 |
| 7764939 | Apparatus and method for processing input signals corresponding to the same signal source at different timings A receiving apparatus includes a receiving module and a processing module. The receiving module is used for receiving a plurality of received signals and selecting the received signals to generate a plurality of input signals. The processing module is used for proce... | 07/27/2010 |
| 7764742 | Notch filtering for OFDM system with null postfix Transmission systems and methods for reducing interference by wideband communication systems with narrowband communications systems are disclosed. In some embodiments an ultrawideband system employing orthogonal frequency division multiplexing (OFDM) with a null pos... | 07/27/2010 |
| 7738852 | Low noise mixer Disclosed is a mixer comprising: a switching circuit, having a first pair of differential signal nodes and a second pair of differential signal nodes, for switching according to a local oscillation signal; an amplifying stage circuit, for receiving an input signal a... | 06/15/2010 |
| 7738580 | Quadrature amplitude modulation trellis coded modulation decoding apparatus and method thereof A quadrature amplitude modulation trellis coded modulation (QAM-TCM) decoding apparatus and the related method that receives and decodes a QAM signal. The QAM-TCM decoding apparatus includes an in-phase least significant bit (LSB) decoding path, which includes a in-... | 06/15/2010 |
| 7738575 | Overlap-and-add with DC-offset correction A method and system for estimating DC offset and removing the excess DC offset from samples used by an overlap-and-add operation at the receiver of OFDM symbols in UWB communication. The DC offset for each sample within the overlap-and-add interval may be estimated ... | 06/15/2010 |
| 7738572 | Orthogonal frequency division multiplexing (OFDM) receiver capable of correcting in-phase and quadrature-phase mismatch and method thereof An OFDM receiver includes a demodulator unit being coupled to a received signal for demodulating both an in-phase (I) component and a quadrature-phase (Q) component of the received signal; a serial to parallel unit for converting the output of the demodulator to a p... | 06/15/2010 |
| 7738408 | Transceiver for full duplex communication systems A transceiver in a full duplex communication system includes a hybrid circuit for transmitting a transmission signal or receiving a receive signal via the channel, the hybrid circuit includes an echo cancellation device for removing transmission signal components fr... | 06/15/2010 |
| 7737960 | Apparatus and method for image frame synchronization A source frame signal received at a first frame rate is converted to a destination frame signal output at a second frame rate. By adjusting the clock frequency of the clock signal in the destination frame signal, the second frame rate is made to be the same as the f... | 06/15/2010 |
| 7737772 | Bandwidth-adjustable filter A bandwidth-adjustable filter includes an operational amplifier, a first resistor, a first capacitor and a first resistor ladder circuit. The operational amplifier has a negative input terminal and a positive input terminal. The first resistor is coupled to one of t... | 06/15/2010 |
| 7728669 | Output stage circuit and operational amplifier thereof The present invention relates to an output stage circuit and an operational amplifier thereof. In the output stage circuit, one of a gate of a transistor is coupled to a gate of a bias transistor and a level shifter in response to a small signal outputted from an am... | 06/01/2010 |
| 7720165 | Demapper applied to quadrature amplitude modulation trellis coded modulation decoder and related method A demapper, applied to a quadrature amplitude modulation trellis coded modulation (QAM-TCM) decoder, for generating more significant bits of a QAM signal according to the QAM signal and at least a less significant bit of the QAM signal is disclosed. The demapper inc... | 05/18/2010 |
| 7714853 | Display device and method thereof A display device and its method are proposed in the present invention. First, at least one input parameter sent from a host is received and the display device then produces an output image according to the input parameter for displaying the output image. The display... | 05/11/2010 |
| 7714756 | Digital-to-analog converter The present invention discloses a digital-to-analog converter (DAC), including a bias voltage generating unit, a digital-to-analog converting stage, and an operating amplifier. The bias voltage generating unit is utilized for generating a first bias voltage. The dig... | 05/11/2010 |
| 7714755 | Dynamic bias control circuit and related apparatus for digital-to-analog converters A dynamic bias control circuit includes a current source, a first switch, a differential amplifier, and a third switch. The current source outputs a first current. The first switch is coupled to an output end of the current source for generating the first current. T... | 05/11/2010 |
| 7714555 | Switching regulation device and related method with over-current protection A switching regulation device includes a switching regulation module and a control module. The switching regulation module generates a first control signal. The control module is coupled to the switching regulation module for receiving the first control signal and p... | 05/11/2010 |
| 7710435 | Method and apparatus for generating visual effects A visual effect generating module for changing visual effects of a selected image block within an image area is disclosed. The visual effect generating module includes a color changing module for receiving and changing pixel values of a plurality of pixels within th... | 05/04/2010 |
| 7706492 | Method and apparatus for correcting symbol timing The present invention provides a method and apparatus for correcting symbol timing of a receiver. The receiver receives a signal transmitted by a transmitter based on a symbol period. The method includes: sampling the signal with a sampling period to generate N samp... | 04/27/2010 |
| 7701787 | Memory controller and output signal driving circuit thereof A memory controller for controlling a memory, where the memory controller includes: a pad, coupled to the memory, for generating an output signal to the memory according to a signal value of the memory controller; a voltage pull-up device, coupled to the pad, compri... | 04/20/2010 |
| 7701370 | Current output circuit with bias control and method thereof A current output circuit with bias control and a method thereof are provided. The current output circuit includes a current mirror circuit comprising a first transistor and a second transistor having respectively two drains, and a control circuit coupled to the curr... | 04/20/2010 |
| 7701284 | Line driver capable of automatically adjusting output impedance A line driver includes: a differential amplifier for amplifying an input signal to generate an output signal; first and second series resistors coupled respectively to output terminals of the differential amplifier and through which the output signal is output; firs... | 04/20/2010 |
| 7701258 | Latch A latch includes: an amplifying circuit, for receiving a first bias current in a first state for amplifying an input signal to generate an amplified signal; a latching unit, for latching the amplified signal and receiving a second bias current in a second state to o... | 04/20/2010 |
| 7697697 | Apparatus for automatic identification of audio input/output device and method thereof An apparatus and method of automatic identification an external audio input/output device. The external device connected to an audio jack is identified as an audio output or input device, according to the impedance thereof. Furthermore, the present invention automat... | 04/13/2010 |
| 7697371 | Circuit and method for calibrating data control signal A circuit for calibrating a data control signal includes a time-delay compensation circuit and a voltage-control delay circuit. The time-delay compensation circuit receives two complementary signals and a direct current voltage which has two voltage cross points wit... | 04/13/2010 |
| 7697071 | Device and method for detecting display mode of video signal A device for detecting a display mode of a video signal having first pixels corresponding to a first field, second pixels corresponding to a second field, and third pixels corresponding to a third field, includes a pixel converter, a measurement circuit, and a decis... | 04/13/2010 |
