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| Number | Title | Issue Date |
| 8149955 | Single ended multiband feedback linearized RF amplifier and mixer with DC-offset and IM2 suppression feedback loop A receiver arrangement includes a single ended multiband feedback amplifier, at least one single ended input, differential output mixer arrangement including a main mixer and a trim mixer, and a mixer feedback loop circuit configured to receive differential output s... | 04/03/2012 |
| 8144813 | Receiving method and receiving circuit A receiving method according to the present invention adjusts a level of an output voltage signal by switching a gain to be used for converting an inputted current signal to a voltage signal, in a preamplifier. Performing offset compensation on the output voltage si... | 03/27/2012 |
| 8094752 | Ultra-wideband signal amplifier Amplifier for an ultra-wideband (UWB) signal receiver having a signal input (15) for receiving an ultra-wideband signal which is sent by a transmitter (1) and which is transmitted in a sequence of transmission channels (Ki) (which each have ... | 01/10/2012 |
| 7965795 | Prevention of integrator wind-up in PI type controllers A control system having an integrator component that provides an integrator output signal used to control a load, and a method controlling the same includes conditioning the integrator component during a fraction of the period in which it would tend to otherwise win... | 06/21/2011 |
| 7912151 | Post-distortion filter for reducing sensitivity to receiver nonlinearities Methods and apparatus for reducing sensitivity to nonlinearities in the receiver of a digital communications system are disclosed. One aspect can be referred to as a Post-Distortion Decision Feedback Equalizer (PDFE). A gain stage is often implemented as a variable ... | 03/22/2011 |
| 7593484 | Radio frequency (RF) receiver with double loop integrated fast response automatic gain control (AGC) A radio frequency (RF) receiver device comprises a receiver system that receives an analog radio frequency signal and downconverts the analog radio frequency signal to a downconverted analog signal, the receiver system further including a peak signal detector config... | 09/22/2009 |
| 7567628 | Symmetric differential slicer A self-biasing slicer includes a self-biased differential transistor pair. As a result of the self-biasing, the slicer may receive input signals without the use of AC coupling. That is, a differential input signal may be fed directly to the inputs of the differentia... | 07/28/2009 |
| 7505532 | Signal transmission system using PRD method, receiver circuit for use in the signal transmission system, and semiconductor memory device to which the signal transmission system is applied A signal transmission system is constructed to transmit data over a signal transmission line without requiring precharging the signal transmission line for every bit, by eliminating the intersymbol interference component introduced by preceding data. The signal tran... | 03/17/2009 |
| 7489741 | System and method to perform DC compensation on a radio frequency burst in a cellular wireless network A method to perform DC compensation on a Radio Frequency (RF) burst transmitted between a servicing base station and a wireless terminal in a cellular wireless communication system that first receives the RF burst modulated according to either a first or second modu... | 02/10/2009 |
| 7421250 | Radio frequency integrated circuit A radio frequency (RF) integrated circuit (IC) includes a local oscillation module, analog radio receiver, analog radio transmitter, digital receiver module, digital transmitter module, and digital optimization module. The local oscillation module is operably couple... | 09/02/2008 |
| 7408994 | AC coupling system for wide band digital data with dynamic AC load An interface system couples a fixed impedance device to a receiver for transmitting data signals at different data rates at different times. The interface system includes elements that are connected to provide different time constants of responsiveness to data signa... | 08/05/2008 |
| 7394872 | Data receiver and method for receiving data using folded differential voltage sampler A data receiver that is capable of precisely detecting data at high speed even at a high frequency after receiving differential reference signals and data in synchronization with a clock signal, and a method for receiving data, are provided. The receiver includes an... | 07/01/2008 |
| 7394863 | Methods and apparatus for signaling on a differential link Methods and apparatus are disclosed for transitioning a receiver from a first state to a second state using an in-band signal over a differential serial data link. ... | 07/01/2008 |
| 7391825 | Comparator circuit having reduced pulse width distortion A comparator circuit having reduced pulse width distortion includes a differential amplifier operative to receive at least first and second signals and to amplify a difference between the first and second signals. The differential amplifier generates a difference si... | 06/24/2008 |
| 7386032 | Receiver processing systems Spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto ... | 06/10/2008 |
| 7376205 | Device and method for compensation of transmission line distortion A system, device, and method for compensation of distortion caused by transmission line effects are disclosed herein. An output port including a feed-forward circuit parallel to the output impedance of an output driver compensates for distortion introduced by transm... | 05/20/2008 |
| 7369781 | Burst mode optical receiver considering characteristic of extinction ratio of received optical signal Provided is a burst mode optical receiver considering a characteristic of an extinction ratio of a received optical signal is provided. By using a peak detector considering a characteristic of an extinction ratio, top and bottom peak voltages of actual burst packets... | 05/06/2008 |
| 7349465 | Line interface system A transceiver system is disclosed for use in a telecommunication system. The transceiver system includes a transmission circuit with a differential transmitter input coupled via a transmitter input stage to a differential input of a transmission amplifier in an embo... | 03/25/2008 |
| 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 |
| 7324540 | Network protocol off-load engines The disclosure describes techniques for coordinating operation of multiple network protocol off-load engines (e.g., Transport Control Protocol (TCP) off-load engines). ... | 01/29/2008 |
| 7313187 | High-speed serial linking device with de-emphasis function and the method thereof A high-speed serial linking device with de-emphasis function for receiving a parallel data and accordingly outputting a de-emphasized transmission differential pair. The high-speed serial linking device includes a parallel-to-serial unit, a pre-driver, and an output... | 12/25/2007 |
| 7283596 | PAM-4 data slicer having symmetrical offset A PAM-4 data slicer includes first, second, and third comparators which provide first, second, and third thresholds, respectively. Each of the comparators has an offset. The first and third comparators have an offset generating arrangement at their outputs to provid... | 10/16/2007 |
| 7272522 | Method and systems for optimizing high-speed signal transmission A method and systems for automatically adjusting the parameters of signal emitter in a synchronous high-speed transmission system, is disclosed. According to the method of the invention, the quality of a high-speed received signal is analyzed for a plurality of sets... | 09/18/2007 |
| 7265596 | Data latch circuit of semiconductor device A data latch circuit for latching a data signal in synchronization with a clock signal includes a hold time delay unit for generating a first clock signal by delaying the clock signal for a hold time of the data signal and an inverse first clock signal as a second c... | 09/04/2007 |
| 7263083 | Radio communication device and arrival direction estimation method A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating a... | 08/28/2007 |
| 7263138 | Q-quenching super-regenerative receiver A super-regenerative receiver uses controlled Q-quenching and may limit the resonant tank circuit amplitude by loading the tank circuit as soon as regenerative oscillation is detected. An amplitude detector is coupled to the regenerative amplifier and controls a Q l... | 08/28/2007 |
| 7260145 | Method and systems for analyzing the quality of high-speed signals A method and systems for analyzing the quality of high-speed signals, when signals can not be over-sampled due to sampler clock rates, is disclosed. According to the method of the invention, the position of a phase rotator is moved from one end to the other and data... | 08/21/2007 |
| 7254194 | Automatic gain control for communication receivers A communication receiver amplifies a pulse-amplitude-modulated (PAM) signal representing an integer-valued sequence of first data elements (D1) with an adjustable first gain (G1) and digitizes the amplified signal to produce a sequence of second data e... | 08/07/2007 |
| 7254169 | Method and apparatus for determining a loss of signal condition A loss-of-signal (LOS) condition is detected by sampling input data for a predetermined time period, comparing a magnitude of the sampled input data to a threshold signal strength level, and asserting a LOS indication if the number of samples that have signal streng... | 08/07/2007 |
| 7218904 | Removing close-in interferers through a feedback loop System and method for elimination of close-in interferers through feedback. A preferred embodiment comprises an interferer predictor (for example, interferer predictor 840) coupled to a digital output of a direct RF radio receiver (for example, radio receiver... | 05/15/2007 |
| 7218865 | Burst-mode optical receiver of differential output structure A burst-mode optical receiver of a differential-output structure is disclosed. The burst-mode optical receiver includes a trans-impedance amplifier for converting currents indicating the burst-mode signals into voltage signals, a bottom-level detector for detecting ... | 05/15/2007 |
| 7215171 | Digitally controlled threshold adjustment circuit A threshold adjustment circuit including: a current DAC for supplying or sinking a varying current; a differential pair of thin oxide transistors coupled to the DAC and coupled together at a common source node; a power supply for providing a supply voltage having a ... | 05/08/2007 |
| 7215936 | Super-regenerative receiver including phase-locked loop An improved low-cost super-regenerative receiver includes sampling phase-locked loop. Phase sampling is controlled by the quench signal (264). In the preferred embodiment, logic state HIGH to logic state LOW transition of the quench signal (264) define... | 05/08/2007 |
| 7212749 | Signal receiver having wide band amplification capability An Improved Signal Receiver Having Wide Band Amplification Capability is disclosed. Also disclosed is a receiver that is able to receive and reliably amplify infrared and/or other wireless signals having frequency bandwidths in excess of 40 MHz. The receiver of the ... | 05/01/2007 |
| 7170949 | Methods and apparatus for signaling on a differential link Methods and apparatus are disclosed for transitioning a receiver from a first state to a second state using an in-band signal over a differential serial data link. ... | 01/30/2007 |
| 7136597 | Decision system for modulated electrical signals A decision system for a modulated electrical signal delivered by a converter in response to a received modulated optical signal compares the amplitude of the electrical signal to a reference level, measures an average amplitude of the electrical signal, and generate... | 11/14/2006 |
| 7126413 | Method and corresponding circuit structure to correlate the transconductance of transistors of different types A method and related circuit structure correlate the transconductance value of transistors of different type, for example MOS transistors and bipolar transistors. The structure comprises a first differential cell formed by transistors of the first type and a second ... | 10/24/2006 |
| 7123648 | Radio relay apparatus A radio relay apparatus including an outdoor relay unit formed of first and second receiving parts equipped out of doors and an indoor relay unit formed of third and fourth receiving parts, and a digital transmission line connecting the outdoor and indoor relay unit... | 10/17/2006 |
| 7120206 | Signal DC offset correction method and device A method and a device for estimating the DC offset portion of a signal, especially of a signal containing parts with sinusoidal shape, for example a signal which results from demodulation of a frequency modulated receive signal. A method is presented for correcting ... | 10/10/2006 |
| 7120838 | Method and unit for deskewing signals A clock deskew method includes receiving a data signal and a clock signal, processing the data signal to generate a jitter characterization parameter, shifting the clock signal by about 90° from the jitter characterization parameter to generate a sampling clock sig... | 10/10/2006 |
