Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8009782 | Downscaling system bandwidth A larger second bandwidth is fitted to a first transmission bandwidth by blanking PRBs at one or both edges of the larger second bandwidth. A first set of control channels is mapped to unblanked PRBs of the second bandwidth using a restricted set of physical cell id... | 08/30/2011 |
| 7400836 | Optical receiving device and optical receiving method An optical receiving device capable of outputting a control signal and a data signal received as an optical signal, even if a received optical power of an optical signal inputted via an optical fiber fluctuates. An optical-to-electrical conversion section converts t... | 07/15/2008 |
| 7391833 | Channel estimator adopting masking Disclosed is a channel estimator adopting masking. In a channel estimator using a CIR (channel impulse response) estimating value, the present invention includes a CIR masking unit removing a noise included in the CIR estimating value. Accordingly, the present inven... | 06/24/2008 |
| 7369836 | Adjacent interference removal device An adjacent interference removal device capable of providing an improved reception quality. An IF signal Sin having passed through an IF filter having a pass frequency band width of 200 kHz is supplied to a first narrow band filter having a pass frequency band width... | 05/06/2008 |
| 7369969 | Holding device for a sensor signal, method for forwarding a sensor signal and computer program A holding device for a sensor signal comprises a signal input receiving a sensor signal, a signal output and a storage device coupled to the signal input and output. The storage device is designed to store a signal value in a first state and to update it based on th... | 05/06/2008 |
| 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 |
| 7366264 | Method and system for reducing noise in a multi-carrier signal A receiver 100 for receiving a multi-carrier signal comprises detection means for detecting 801 the presence of impulse interference within the signal and identifying one or more samples of the signal affected by the impulse interference, means for sel... | 04/29/2008 |
| 7352771 | Data collision detection device and method A data collision detection device that includes a means for de-modulating at least one carrier signal corresponding to a received modulated subcarrier signal from at least one data transmitter to recover the subcarrier signal from the carrier signal. A microcontroll... | 04/01/2008 |
| 7313127 | Method and apparatus for synchronizing a radio telemetry system by way of transmitted-reference, delay-hopped ultra-wideband pilot signal A time-division-multiplexed radio communication system and method uses transmitted-reference, delay-hopped (TR/DH) ultra-wideband (UWB) broadcast signal to provide a pilot signal to all mobile devices in a coverage area from which time synchronization is derived. Us... | 12/25/2007 |
| 7310170 | Communication apparatus, communication method, image forming apparatus utilizing such method, unit connected to image forming apparatus and image forming system A sampling unit samples plural input signals, and detects a point (change point) at which one of the sampled input signals shows a change in the logic level. In case the logic level after the detection of the change point continues for a predetermined time, the plur... | 12/18/2007 |
| 7272187 | Filter circuit and radio apparatus A distributor 103 distributes an input signal into two lines of distributed signals with equal amplitudes and equal phases. Buffers 104, 105 suppress interference between distributed signals distributed into the two lines. A filter 106 performs ... | 09/18/2007 |
| 7260163 | Noise blanker using an adaptive all-pole predictor and method therefor A noise blanker (40, 106) monitors and removes noise from a sampled signal by adaptive filtering (98, 150) the sampled signal to generate trained adaptive filter prediction coefficients. The sampled signal is provided as an output signal when the noise... | 08/21/2007 |
| 7251303 | Digital data receiving apparatus and method with system changeover function A received, same signal is distributed to two channels, the received signals on the two channels are demodulated to produce a plurality of data streams on each of the two channels, and the plurality of data streams of one channel is selected to produce from the plur... | 07/31/2007 |
| 7236511 | Structured adaptive frequency hopping The invention generally provides a method of intelligent frequency hopping such as in Bluetooth and Home RF networks. The method (100) includes the acts of sampling a plurality of channels in a frequency band and identifying each channel as a good channels or... | 06/26/2007 |
| 7236743 | Method and arrangement for noise rejection in a receiver circuit In a method for interference suppression using a quality-adjustable bandpass filter in a receiver circuit for carrier-modulated received signals (SIN), the bandpass filtered received signal (Bout) is demodulated, and a switching process is trig... | 06/26/2007 |
| 7218903 | Squelch detecting circuit The present invention provides a squelch detecting circuit capable of high-speed transfer while using a reduced number of high-speed operating operational amplifiers to reduce power consumption and the cost of parts. Input differential signals inputted to a differen... | 05/15/2007 |
| 7180933 | Squelch circuitry for high speed high frequency operation A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate ... | 02/20/2007 |
| 7149263 | AGC method and circuit for digital radio receiver A gain of an amplifier of a receiver is automatically controlled based on a level of a signal received by the receiver. The instantaneous value of the envelope of the received signal is detected sequentially at predetermined time intervals. The first interval averag... | 12/12/2006 |
| 7133468 | Concurrent FM signal receiver A method and apparatus are provided which detects distortion in a received FM signal caused by amplitude modulating and phase transition of two combined FM signals. A method corrects and modifies the distortion by detecting a distorted sample, replacing the distorte... | 11/07/2006 |
| 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 |
| 7116699 | Frequency re-mapping for structure adaptive frequency hopping The invention generally provides a method of intelligent frequency hopping such as in Bluetooth and Home RF networks. The method (400) includes the acts of generating windows (410), sampling an original frequency (430), determining if the origin... | 10/03/2006 |
| 7103109 | Randomly inverting pulse polarity in an UWB signal for power spectrum density shaping A method eliminates spectral lines in a time hopping ultra wide bandwidth signal. First, a train of pulses is generated from input symbols. The pulses are then modulated in time according to symbols. The modulation can use pulse position modulation and time hopping.... | 09/05/2006 |
| 7099422 | Synchronization of ultra-wideband communications using a transmitted-reference preamble A method and apparatus of initial synchronization, or acquisition, of time modulated ultra-wideband (UWB) communications uses a transmitted-reference preamble. The method and apparatus require that the transmitter first send a time-reference, delay-hopped (TR/DH) bu... | 08/29/2006 |
| 7079012 | System and method for distributing broadband communication signals over power lines The present invention is directed to a method for decreasing high frequency (HF) radiation emission in a power line. The method involves transmitting a utility power signal over the power line and transmitting a high frequency communication signal over the power lin... | 07/18/2006 |
| 7076225 | Variable gain selection in direct conversion receiver A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/anal... | 07/11/2006 |
| 7076011 | Integrated frequency translation and selectivity Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 07/11/2006 |
| 7075977 | Circuit for a transceiver output port of a local area networking device A driving circuit for a transceiver output port of a local area networking device is provided, including first and second current sources coupled to the ground, first and second resistors coupled to the supply voltage with the resistances of the first and second res... | 07/11/2006 |
| 7071747 | Inverting zipper repeater circuit Repeater circuits including an inverting zipper repeater circuit and an inverting gain-enhanced repeater circuit are described. ... | 07/04/2006 |
| 7068990 | Receiver for two orthogonally polarized signals The inventive receiver has a receiving branch for each of the two signals (EH, EV) and a demodulator (MHE, MVE) and means (SH, SV) for synchronising the phase of the received signal (EH, EV) with the transmitting phase are provided in said branches, respectively. Po... | 06/27/2006 |
| 7006583 | Method and apparatus for receiving differential ultra wideband signals A receiver may receive ultra-wideband, spread-spectrum differential signals. In some embodiments, the receiver may use a variable bandwidth low pass filter. Lowering or raising the bandwidth of the low pass filter may improve performance in particular wideband signa... | 02/28/2006 |
| 7003059 | Jabber counter mechanism for elastic buffer operation An Elastic Buffer is provided to process data in a computer network and a write controller is provided to control memory storage operation of such an Elastic Buffer. The write controller may comprise a comparator mechanism which detects if link data from a source co... | 02/21/2006 |
| 6961396 | Digital banking circuit A digital blanking circuit allows a first digital input signal transition to be passed on to a following stage, but prohibits the passing of subsequent transitions for a predetermined blanking interval. One embodiment of the present invention employs rising edge and... | 11/01/2005 |
| 6934319 | Configurable multimode despreader for spread spectrum applications A configurable multimode despreader for spread spectrum applications is disclosed herein. The despreader includes a plurality of data lines, at least one selective coupler coupled to the plurality of data lines, at least one multiplier coupled to the selective coupl... | 08/23/2005 |
| 6925114 | Weak signal processing based on impulse noise blanking An improved noise reduction system (20) is provided for a radio frequency audio processor having one or more weak signal processing components for generating one or more corresponding control values (36a, 36b) for controlling chara... | 08/02/2005 |
| 6914951 | Method and apparatus for a digital logic input signal noise filter Logic apparatus filters noise signals on a signal line to a digital circuit. An edge detector determines one or more edges of the noise signals relative to a fast clock. Signals indicative of the edges asynchronously reset a timer; the timer clocks the latch of the ... | 07/05/2005 |
| 6859645 | Squelch detection circuit Disclosed is a transmission envelope detector referred to a squelch detection circuit for effectively detecting an element of transmission data in a high speed serial data transmission system. The squelch detection circuit of the invention includes a differential in... | 02/22/2005 |
| 6788923 | Receiver noise reduction with expanding gated pulses A noise reducer generates a gate signal by detecting noise in a demodulated signal, and changes the lengths the gate pulses indicating the presence of noise according to the electric-field strength of a radio signal from which the demodulated signal has been obtaine... | 09/07/2004 |
| 6775526 | Modulated input signal filter A modulated input signal is filtered to reduce noise. The state of the input signal controls the state of a switch. Depending upon its state, the switch connects one of two circuits to a gate. The gate receives the input signal and it passes or blocks the signal dep... | 08/10/2004 |
| 6683906 | Radio communication apparatus A radio communication apparatus subjects each signal which is received via a multi-path and demodulated, to a Hadamard transform at each of fingers, by use of an M-ary quadrature coding scheme, obtains correlation values of codes, combines correlation val... | 01/27/2004 |
| 6577851 | Impulse noise blanker A radio back-end integrated circuit that includes a blanking switch having a signal input which receives an IF signal, a control input, and a signal output. Also included is a demodulator having an input coupled to the output of the blanking switch, and a... | 06/10/2003 |
