Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 8175141 | Method and apparatus for calibrating equalizers without knowledge of the data pattern being received A method and apparatus for calibrating an equalizer. The method comprises the steps of defining one or more equalization parameters and calculating a bit error rate of a signal for one or more values of a first of the one or more equalization parameters by counting ... | 05/08/2012 |
| 8170089 | Apparatus for equalizing channel in frequency domain and method therefor Provided is an apparatus for channel equalization in frequency domain, including: a channel estimation unit for estimating a channel on received signal from outside, a channel matched filter for changing channel characteristic of the channel estimated by the channel... | 05/01/2012 |
| 8165192 | Waveform equalizer Tap coefficients of an FIR filter are prevented from converging to wrong values. A waveform equalizer for performing waveform equalization of an input signal and outputting a waveform equalization result as an output signal includes: an FIR filter for performing a c... | 04/24/2012 |
| 8160127 | Asymmetric multi-channel adaptive equalizer An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for... | 04/17/2012 |
| 8155177 | Equalization of transmit diversity space-time coded signals In connection with transmitted space-time, trellis encoded, signals that pass through a transmission channel that is characterized by memory, improved performance is realized with a receiver that combines a decoder with an equalizer that selects the trellis transiti... | 04/10/2012 |
| 8155176 | Digital equalization process and mechanism A filter is created by sampling noise during an inter-frame gap (110) of a received signal, sampling a data frame preamble (115) from within a data frame (105) of the received signal, and computing filter coefficients based on the noise sampled ... | 04/10/2012 |
| 8139628 | Method and device to compensate for baseline wander A method and device for compensating for undesirable signal characteristics such as baseline wander that includes a linear equalization filter responsive to receive an input, a combiner responsive to an output of the linear equalization filter, and a decision feedba... | 03/20/2012 |
| 8126043 | Method and apparatus for block-based signal demodulation Teachings presented herein combine the relative simplicity of equalization with the performance of maximum likelihood (ML) processing. These teachings are applied to the detection of symbols in a stream of symbol blocks. In one or more embodiments, block-based equal... | 02/28/2012 |
| 8121182 | High performance equalizer with enhanced DFE having reduced complexity An apparatus and method for implementing an equalizer which (1) combines the benefits of a decision feedback equalizer (DFE) with a maximum-a-posterori (MAP) equalizer (or a maximum likelihood sequence estimator, MLSE) (2) performs equalization in a time-forward or ... | 02/21/2012 |
| 8116364 | Selective slicing equalizer An equalizer. The equalizer, either operated in a blind mode or a decision directed mode, comprises a feed-forward filter, a feedback filter, a decision device, a control circuit, and a multiplexer. The feed-forward filter receives an input signal. The feedback filt... | 02/14/2012 |
| 8111741 | Sampling filter apparatus and wireless communication apparatus The present invention has an object to provide a sampling filter apparatus and a wireless communication apparatus, which are capable of changing a filter characteristic without employing complex waveforms as control signals, and also, capable of performing filtering... | 02/07/2012 |
| 8111740 | Time-domain equalizer The present invention provides a cost-effective TEQ hardware architecture to support multiple VDSL2 profiles. It supports variable TEQ tap length programmable through firmware. Larger TEQ tap length at low-speed profiles is supported by the unique design without add... | 02/07/2012 |
| 8111739 | Detector for low frequency offset distortion A system for removing low frequency offset distortion from a digital signal, the system comprising an analog-to-digital converter to convert an analog frequency signal associated with an optical storage medium to a digital frequency signal; an equalizer to equalize ... | 02/07/2012 |
| 8107518 | Stream weight estimation and compensation in SIMO/MIMO OFDM receivers A process for equalizing streams of OFDM subcarrier data computes the noise variance for each stream, and forms a stream weighting coefficient by equalizing the noise variance, such that for a first stream having a noise variance σ1 and a second stream h... | 01/31/2012 |
| 8107519 | Equalizer, equalization method, program and receiving device An equalizer includes: a replica generation means for generating a replica of a multipath component by applying an adaptive filter to a received signal; a removal means for generating a multipath-component removed signal from which the multipath component has been r... | 01/31/2012 |
| 8098721 | Reception of a signal transmitted over a transmission link comprising coded channels A method to receive a signal transmitted over a transmission link comprising coded channels, the method comprising: —equalization operations (110-116) to compensate for signal distortion introduced by the transmission link in a signal burst, and—bl... | 01/17/2012 |
| 8094707 | List-based detection in fading channels with long intersymbol interference An apparatus, computer software, and method for data detection in channels suffering from intersymbol interference comprising receiving a signal representative of a binary digit of data, computing a reliability score for that binary digit of data via windowed Chase ... | 01/10/2012 |
| 8085838 | Receiver having an adaptive filter and method of optimising the filter A receiver comprises an adaptive filter having an input for a digitized input signal, means for storing a pre-designed filter characteristic, means for analyzing a digital representation of the input signal to determine a desired position of the filter characteristi... | 12/27/2011 |
| 8081675 | De-emphasizing cable equalizer In accordance with the teachings described herein, an extended equalizer circuit is provided for equalizing a digital communication signal transmitted over a transmission medium that causes a frequency-dependent attenuation of the digital communication signal. An eq... | 12/20/2011 |
| 8077764 | 16-state adaptive noise predictive maximum-likelihood detection system A 16-State adaptive NPML detector is provided for a tape drive which addresses weaknesses of a conventional fixed, 8-state EPR4 detector. Rather than having a fixed target channel, the detector is programmable to allow a range of target channels and can support “c... | 12/13/2011 |
| 8073044 | Polar transmitter with digital and analog filtering of envelope A calibration circuit measures the variation in a filter resistor within the analog domain of the envelope path of a polar transmitter and produces a digital value representative of that variation. A digital processor determines a digital control signal from the dig... | 12/06/2011 |
| 8064510 | Analog encoder based slicer A method and an apparatus for slicing an analog signal using an analog encoder. ... | 11/22/2011 |
| 8064509 | Adaptive equalization based on signal overshoot Various systems and methods are provided for adaptive equalization. The adaptive equalization is performed on a data signal received from a channel in a receiver. The data signal is equalized using an equalizer in the receiver, thereby generating an equalized data s... | 11/22/2011 |
| 8064508 | Equalizer with controllably weighted parallel high pass and low pass filters and receiver including such an equalizer An adjustable equalizer that includes a first branch including a low pass filter (LPF) and having a variable gain (β), and a second branch including a high pass filter (HPF) and having another variable gain (α). Outputs of the branches in response to an input sign... | 11/22/2011 |
| 8059705 | Channel equalization using frequency and phase compensation A system and method are provided for channel equalization using a combination of frequency and phase compensation. The method receives a serial data stream input, and parallel processes the data stream input through a first and second path. The first path has a firs... | 11/15/2011 |
| 8054873 | Joint phased training of equalizer and echo canceller A method and apparatus for joint training of an analog equalizer (AEQ) and an analog echo canceller (AEC) is described. In one embodiment, which both the AEQ and AEC process an input analog signal in the analog domain. In one embodiment, the method includes joint tr... | 11/08/2011 |
| 8050316 | DTV receiver and method of processing broadcast signal in DTV receiver A DTV receiver includes a tuner, a demodulator, a known sequence detector, and a frequency domain equalizer. The tuner initially receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The demodulator demodulates the... | 11/01/2011 |
| 8050317 | Receiver with equalizer and method of operation A receiver with an equalizer and an equalizing method are disclosed. The method includes equalizing received serial data in the equalizer, detecting an error in equalized serial data output by the equalizer, and determining reset of the equalizer in relation to an e... | 11/01/2011 |
| 8045606 | Bidirectional equalizer with improved equalization efficiency using viterbi decoder information and equalization method using the bidirectional equalizer A bidirectional equalizer and an equalization method using the bidirectional equalizer. The bidirectional equalizer includes: a first equalizer to eliminate inter-symbol interference present in a data sequence transmitted from a transmitter and to generate a first c... | 10/25/2011 |
| 8040943 | Least mean square (LMS) engine for multilevel signal A method and an apparatus for slicing a multilevel analog signal using a two-level slicer having one threshold level to generate an analog error signal. The method may be performed by delaying a received multilevel analog signal in a plurality of serial analog stage... | 10/18/2011 |
| 8031762 | Stream weight estimation and compensation in SIMO/MIMO OFDM receivers A process for equalizing streams of OFDM subcarrier data computes the noise variance for each stream, and forms a stream weighting coefficient by equalizing the noise variance, such that for a first stream having a noise variance σ1 and a second stream h... | 10/04/2011 |
| 8000383 | Data reproduction apparatus and method capable of determining level value of viterbi decoder, and computer-readable recording medium having recorded thereon program for implementing the data reproduction method A data reproduction apparatus and method to accurately determine an initial level value of a viterbi decoder regardless of whether an operating frequency is in a stable state, and a recording medium having recorded thereon a program for implementing the data reprodu... | 08/16/2011 |
| 7978758 | Efficient blind equalization for quadrature amplitude modulation Methods and apparatus are provided for receiving a signal transmitted with a quadrature amplitude modulation (QAM) constellation. In an embodiment of the invention, a blind equalization algorithm can be performed to equalize the signal, and a constellation recovery ... | 07/12/2011 |
| 7978757 | Configurable receiver and a method for configuring a receiver A configurable receiver and a method for configuring a receiver, the method includes: (i) evaluating multiple nonzero taps allocations, wherein each nonzero taps allocation evaluation includes: (i.a) allocating nonzero taps between multiple sparse equalizers, wherei... | 07/12/2011 |
| 7974334 | Systems and methods for hybrid-MIMO equalization Embodiments provide systems and methods for a novel multiple-input multiple-output (MIMO) equalization technique that produces a channel matrix that contains partly real coefficients and partly complex coefficients, referred to herein as a hybrid-MIMO equalization. ... | 07/05/2011 |
| 7970046 | Block time domain equalizer for time reversal-space time block code system and method for encoding and equalizing received signal in the block time domain equalizer Provided is a block Time Domain Equalizer (TDE) for a Time Reversal-Space Time Block Codes (TR-STBC) system. The block TDE comprises a block equalizer which generates an output based on an equalizer tap weight with respect to two consecutively received blocks, an eq... | 06/28/2011 |
| 7965765 | Adjustment method, circuit, receiver circuit and transmission equipment of waveform equalization coefficient In an adjustment method of waveform equalization coefficient, one of jitter and amplitude is measured only in a case of an arbitrary signal sequence and a waveform equalization coefficient is adjusted. Particularly, using a signal of received signals other than a 01... | 06/21/2011 |
| 7961781 | Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting timing recovery Embodiments include a system for performing dispersion compensation on an electromagnetic signal received over a communication channel, the electromagnetic signal bearing information at a symbol rate. An interleaved analog to digital converter (“ADC”) block may ... | 06/14/2011 |
| 7940839 | Fully adaptive equalization for high loss communications channels An equalization circuit is disclosed that enables high data rate transmission over high loss communications channels. Also disclosed is a set of functional blocks and update criteria that allow for the equalization function to be adapted for a large variety of diffe... | 05/10/2011 |
| 7940840 | Dual barrel receiver equalization architecture Methods and apparatus relating to dual barrel receiver equalization architectures are described. In an embodiment, a receiver logic may include an amplifier and two comparators to equalize frequency components of a received signal. The receiver logic may further inc... | 05/10/2011 |
