Abstract: A wireless device 108 and a method therein for assisting in precoder selection for wireless communication with a Radio Node (RN) 106, and a RN 106 for performing precoder selection for wireless communication with a wireless device 108. The wireless device is configured with a set of precoders. The wireless device determines a subset of precoders out of the set of precoders; and transmits, to the RN, at least one Sounding Reference Signal (SRS) precoded with a respective at least one precoder comprised in the subset. The RN receives, from the wireless device, at least one SRS precoded with a respective at least one precoder comprised in a subset of precoders; and transmits, to the wireless device, a signal indicative of a selected precoder to be used for a transmission to the RN, wherein the selected precoder is indirectly selected based on the received at least one SRS.

Abstract: An image processing method, a non-transitory computer-readable storage medium, and an electronic apparatus are disclosed. The method includes: acquiring a first initial image by a first camera at a first frame rate during an exposure period, and acquiring at least two second initial images by a second camera at a second frame rate during the exposure period; and stitching the at least two second initial images into one second target image; wherein the second target image is a depth image. The first frame rate is less than the second frame rate, and each second initial image is an image comprising depth information.

Abstract: An anti-interference ranging method and an anti-interference ranging apparatus are provided. The method includes: detecting, by a first light detection and ranging device, whether a light detection process is interfered by a second light detection and ranging device in the ranging system; delaying, by the first light detection and ranging device, the light detection process for a preset time period if it is detected that the light detection process is interfered by the second light detection and ranging device; and acquiring, by the first light detection and ranging device, detection data collected in the light detection process, and processing, by the first light detection and ranging device, the detection data to obtain a ranging result if it is detected that the light detection process is not interfered by the second light detection and ranging device.

Abstract: A method for pre-coding a digital signal in a transmitter associated with a digital communications system to remove non-linear distortions. The method converts digital bits to be transmitted to a transmit constellation including symbols defining a plurality of the bits and subtracting a modeled constellation from the transmit constellation to provide a pre-coded constellation. The method performs a modulo operation on the pre-coded constellation to limit the number of symbols that are transmitted at any particular point in time and models the pre-coded constellation after the modulo operation using a Volterra series model, where a plurality of terms in the Volterra series are separately modeled and each modeled term of the constellation is added together to provide the modeled constellation. The method filters the pre-coded constellation to interpolate a symbol sequence in the constellation and shape the constellation and converts the shaped constellation to an analog signal to be transmitted.

Abstract: For suppression of continuous wave interferers at, e.g., up to four interferer frequencies (f1, f2, f3, f4) in a GNSS receiver base band circuit a raw digital signal is, in a band stop unit (21), shifted, by a first mixer (31a), by the negative of the first interferer frequency (f1) in the frequency domain whereupon the continuous wave interferer is suppressed by a band stop filter (30a), a linear phase FIR filter with a suppression band centered at zero, e.g., a filter subtracting a mean over previous subsequent signal values from the actual signal value. After further shifting of the shifted digital signal by the negative of the difference between the second interferer frequency (f2) and the first interferer frequency (f1) the shifted digital signal is again filtered by an identical band stop filter (30b) and so on.

Abstract: A communication circuit arrangement includes a signal path circuit configured to separately apply a kernel dimension filter and a delay tap dimension filter to an input signal for an amplifier to obtain an estimated interference signal, a cancelation circuit configured to subtract the estimated interference signal from a received signal to obtain a clean signal, and a filter update circuit configured to alternate between updating the kernel dimension filter and the delay tap dimension filter using the clean signal.

Abstract: For suppression of continuous wave interferers at, e.g., up to four interferer frequencies (f1, f2, f3, f4) in a GNSS receiver base band circuit a raw digital signal is, in a band stop unit (21), shifted, by a first mixer (31a), by the negative of the first interferer frequency (f1) in the frequency domain whereupon the continuous wave interferer is suppressed by a band stop filter (30a), a linear phase FIR filter with a suppression band centered at zero, e.g., a filter subtracting a mean over previous subsequent signal values from the actual signal value. After further shifting of the shifted digital signal by the negative of the difference between the second interferer frequency (f2) and the first interferer frequency (f1) the shifted digital signal is again filtered by an identical band stop filter (30b) and so on.

Abstract: The method includes organizing a plurality of subscriber lines into a first group of subscriber lines and a second group of subscriber lines, the first group of subscriber lines at least including all the subscriber lines of the plurality of subscriber lines that do not support non-linear precoding operation and the second group of subscriber lines including the remaining subscriber lines of the plurality of subscriber lines; scaling first signals to be transmitted over respective ones of the first group of subscriber lines to confine respective intermediate transmit power levels at the input of a modulo unit and further to bypass or make ineffective the operation of the modulo unit; and processing the so scaled first signals and second signals to be transmitted over respective ones of the second group of subscriber lines through the first and second precoding stages.

Abstract: Methods and apparatus for performing multiplexing of video or other content (e.g., programs) within a network using feed-back from a subsequent digital program insertion stage, and/or feed-forward information from a prior multiplexing stage. In one embodiment, the network comprises a hybrid fiber coax (HFC) cable network having headend and hub-based statistical multiplexing stages, and communication between the two stages is used to improve the visual quality performance and bandwidth utilization of the output multi-program stream during conditions where downstream content is inserted into the transport stream. Business methods associated with the various multiplexing features described above are also disclosed.

Abstract: Techniques for guard band usage for wireless data transmission are described. In at least some embodiments, white spaces in the radio spectrum (e.g., television (TV) white spaces) and guard bands between licensed bands of the radio spectrum are leveraged for data transmission. Based on available white spaces and service deployment in the licensed bands, various decisions can be made regarding how to leverage white spaces and guard bands for wireless data transmission.

Abstract: An electronic toll collection receiver, comprising: an enveloping module configured to envelope an amplitude modulation (AM) signal; an averaging module connected to the enveloping module, configured to obtain an average value of the enveloped AM signal; a direct current blocking module connected to the enveloping module and the averaging module, configured to eliminate the average value from the enveloped AM signal; a comparing module connected to the direct current blocking module, configured to compare the average value and each of amplitude values of the enveloped AM signal; a correcting module connected to the comparing module and the directing current blocking module, configured to correct output values from the comparing module; and a decoder module connected to the correcting module, configured to decode the corrected output values from the correcting module.

Abstract: A television and a control method of the television are provided. The control method of the television includes receiving a broadcasting signal, detecting whether a pilot signal is included in the received broadcasting signal, setting a channel of the broadcasting signal as a channel of a first broadcasting format in response to detecting the pilot signal is included in the received broadcasting signal, and setting the channel of the broadcasting signal as a channel of a second broadcasting format in response to detecting that the pilot signal is not included in the received broadcasting signal.

Abstract: According to one embodiment, a cross-correlator comprises a plurality of analog front ends (AFEs), a cross-correlation circuit and a data serializer. Each of the AFEs comprises a variable gain amplifier (VGA) and a corresponding analog-to-digital converter (ADC) in which the VGA receives and modifies a unique analog signal associates with a measured analog radio frequency (RF) signal and the ADC produces digital data associated with the modified analog signal. Communicatively coupled to the AFEs, the cross-correlation circuit performs a cross-correlation operation on the digital data produced from different measured analog RF signals. The data serializer is communicatively coupled to the summing and cross-correlating matrix and continuously outputs a prescribed amount of the correlated digital data.

Abstract: A method for compensating for transmission channel distortion effects for a data signal transmitted from a first computing device via the transmission channel to a second computing device is provided.

Abstract: A method includes receiving a signal including a co-channel interference, channel equalizing the received signal and processing the channel equalized signal based on a first precoding vector such that the co-channel interference is mitigated.

Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for broadcasting a local signal B that corresponds to a coverage hole in a remote signal B. The system includes a first transmitter at a first location and a second transmitter at the first location that transmits local signal B corresponding to remote signal B transmitted from a remote transmitter. The second transmitter broadcasts the local signal B to at least part of a coverage hole in a coverage area of remote signal B. Also disclosed is a method for consolidating allocated wireless spectrum. The method includes identifying a guard band in an allocated band of wireless spectrum, reassigning an existing channel occupying a portion of the allocated band of wireless spectrum to the guard band via selective single frequency network infill to yield a reassigned channel, and freeing the portion of the allocated band of wireless spectrum.

Abstract: A point-to-point radio frequency (RF) communication system having one or more communication units coupled to respective television cameras and displays; and a further communication unit; wherein the units transmit video data to the further communication unit at frequencies greater than or equal to 50 GHz and at data rates greater than or equal to 1 gigabit/second; and the units receive video data transmitted by the further communication unit at frequencies greater than or equal to 50 GHz and at data rates 250 megabits/second. The units can each include an antenna with a waveguide diplexer and an RF transceiver circuit board having sufficient transmit/receive isolation for the transmitting and receiving to take place point-to-point at distances greater than or equal to 1 km.

Abstract: A television receiver for receiving TV signals when unknown interference is present in a predetermined bandwidth in which the TV signals are transmitted. The TV receiver comprises an input, a tuner, a configurable filter and a controller circuitry. The input receives a radio frequency (RF) signal comprising the terrestrial TV signals. The tuner is configured to detect the terrestrial TV signals, where the terrestrial TV signals include a plurality of frequency channels within a predetermined bandwidth and the plurality of frequency channels provide TV signals which communicate TV channels. The configurable filter is configurable to suppress signals received from one or more of the plurality of frequency channels within the predetermined bandwidth.

Abstract: A television receiver for receiving TV signals when unknown interference is present in a predetermined bandwidth in which the TV signals are transmitted. The TV receiver comprises an input, a tuner, a configurable filter and a controller circuitry. The input receives a radio frequency (RF) signal comprising the terrestrial TV signals. The tuner is configured to detect the terrestrial TV signals, where the terrestrial TV signals include a plurality of frequency channels within a predetermined bandwidth and the plurality of frequency channels provide TV signals which communicate TV channels. The configurable filter is configurable to suppress signals received from one or more of the plurality of frequency channels within the predetermined bandwidth.

Abstract: Systems, methods, apparatus, devices and computer program products enhance uplink inter-cell interference cancellation with HARQ retransmissions. The decoding of a data packet depends on whether the interfering packet was decoded. Since the interfering packet is itself transmitted using a HARQ process, the transmission by the victim UT can be accomplished to take this situation into account. The latency of the victim UT can be varied based on the need for energy efficient transmission. In accordance with one specific aspect, if the receiver can decode multiple packets simultaneously, high data rates can be achieved using packet pipelining.

Abstract: Disclosed herein are systems, methods, and computer-readable storage media for broadcasting signals. The system includes a supplemental antenna at a first location co-located with a main antenna transmitting a main signal. The supplemental antenna is physically separate from a main antenna at the same location and transmits a supplementary signal adjacent to the main signal which matches or corresponds to a remote signal transmitted from an antenna at a remote location. The system transmits the supplemental signal at sufficient power to overcome interference in a coverage hole of the remote signal caused by the main signal. A supplemental antenna co-located with the main antenna can transmit the supplemental signal. The system can receive a supplemental signal that matches a remote signal, pass the supplemental signal through a same power amplifier and filter as a local main signal, and broadcast via an antenna both the main signal and the supplemental signal.

Abstract: Systems, methods, and devices for reducing interference with digital television transmissions occurring over a bandwidth are disclosed. The digital television signal is correlated to a reference digital television field sync signal. A non-coherent correlation power measurement is determined based on the correlation of the received digital television signal to the reference digital television field sync signal. A plurality of maximum non-coherent correlation power measurements are determined over multiple field times. An energy estimate for the digital television transmission is determined based on the maximum non-coherent correlation power measurements. A transmit mask filter is generated based on the energy estimate. The transmit mask is applied to transmissions to reduce interference with detected digital television transmissions.

Abstract: A digital broadcast transmitter includes a block processor encoding mobile service data at a coding rate of 1/H and first interleaving the encoded mobile service data, wherein H is an integer equal to or greater than 2, a deinterleaver deinterleaving the first-interleaved mobile service data to output a first data group, an interleaver second interleaving the first data group to output a second data group including the mobile service data, a trellis encoding module trellis encoding data of the second data group, and a multiplexer multiplexing the trellis-encoded data with segment synchronization data and field synchronization data, wherein the block processor is concatenated with the trellis encoding module.

Abstract: A method of processing broadcast data includes performing RS (Reed-Solomon) encoding and CRC (Cyclic Redundancy Check) encoding on mobile service data to output an RS frame; dividing the RS frame into a plurality of portions; block processing data in one portion of the plurality of portions; mapping the block processed data in the one portion into at least one region of a data group that comprises a plurality of regions, and adding a first known data sequence, a plurality of second known data sequences, and a transmission parameter to the data group; and transmitting a transmission frame including the data group, wherein the transmission parameter is positioned between the first known data sequence and one of the plurality of second known data sequences, and the first known data sequence and the one of the plurality of second known data sequences differ from each other in length.

Abstract: A system for monitoring television signals broadcast by at least one transmission antenna in a broadcast area includes a monitoring control center and a plurality of remote monitoring units distributed in television signal receiving locations of the broadcast area remote from the transmission antenna. The remote monitoring units are configured to receive the television signals irradiated in the respective locations, process the television signals and send to the monitoring control center information related to the processed television signal. In particular, the remote monitoring units include a receiver adapted to receive the television signal, a measuring system adapted to perform measures on radio-electric features of the received television signal, and a communication system adapted to communicate measurement results to the remote monitoring center, exploiting a communication link between the remote monitoring unit and the control center.

Abstract: An image processing apparatus includes a pixel difference calculator, a summing unit, a determining unit, and an output unit. The pixel difference calculator receives a present image having first pixels and a previous image having second pixels, calculates pixel differences between corresponding first and second pixels, and outputs positive and negative pixel difference values. The summing unit obtains a first output value by adding up those of the positive pixel difference values and a second output value by adding up those of the negative pixel difference values. The determining unit determines a noise level of the present image from the first and second output values, and outputs a blended value. The output unit adds together weights of pixels at the same positions of the present and previous images according to the blended value to generate an output image. An image processing method is also disclosed.

Abstract: An information delivery apparatus includes an encoder for encoding and packetizing digital data of an image or an audio, a frame assembly identification packet insertion unit for inserting a frame assembly identification packet including time information in the data packetized by the encoder on a frame assembly basis, and a transmission side communication module for outputting to a network the stream data having the frame assembly identification packet inserted therein by the frame assembly identification insertion unit.

Abstract: A number of cameras capture a scene and send corresponding video sub-streams to an acquisition PC. Each sub-stream is made up of a plurality of sub-frames. The acquisition PC sends the sub-streams over a network to a playback PC. The playback PC stores each sub-frame in a queue corresponding to an associated sub-stream. For each sub-stream the playback PC calculates a sub-stream average period to produce a plurality of sub-stream average periods. It then calculates a composite average period by averaging the plurality of sub-stream average periods, and calculates a playback frame rate as a reciprocal of the composite average period. The playback PC then reads the sub-frames from their corresponding queue in synchronism with the calculated playback frame rate to display the plurality of sub-streams.

Abstract: An Orthogonal Frequency Division Multiplex (OFDM) communication system comprises OFDM transmitters, an OFDM receiver, and a subcarrier status data controller for transmitting subcarrier status data to the OFDM receiver. The subcarrier status data indicates the active subcarriers of the OFDM transmitters. The OFDM receiver comprises a receiver, a subcarrier status processor, a channel estimator, and an interference mitigation processor.

Abstract: A digital broadcast transmitting/receiving system and a signal processing method thereof that can improve the receiving performance of the system. A digital broadcast transmitter has a randomizer to randomize an input data stream which has null bytes being inserted at a specified position, a multiplexer to output a data stream formed by inserting specified known data into the position of the null bytes of the randomized data stream, an encoder to encode the data stream outputted from the multiplexer, and a modulator/RF-converter to modulate the encoded data, RF-convert the modulated data and transmit the RF-converted data. The receiving performance of the digital broadcast transmitting/receiving system can be improved even in a multi-path channel by detecting the known data from the received signal and using the known data in synchronization and equalization in a digital broadcast receiver.

Abstract: A digital television (DTV) receiving system includes a tuner, a demodulator, a known data detector, an equalizer, a transmission detector, and a block decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed. The demodulator demodulates the DTV signal, and the known data detector detects known data included in the mobile service data. The equalizer equalizes the demodulated DTV signal using the detected known data, and the transmission parameter detector detects an error correction mode from the equalized DTV signal. Finally, the block decoder decodes the equalized DTV signal for error correction using the detected error correction mode.

Abstract: A digital broadcast transmitting/receiving system and a signal processing method thereof that can improve the receiving performance of the system. A digital broadcast transmitter has a randomizer to randomize an input data stream which has null bytes being inserted at a specified position, a multiplexer to output a data stream formed by inserting specified known data into the position of the null bytes of the randomized data stream, an encoder to encode the data stream outputted from the multiplexer, and a modulator/RF-converter to modulate the encoded data, RF-convert the modulated data and transmit the RF-converted data. The receiving performance of the digital broadcast transmitting/receiving system can be improved even in a multi-path channel by detecting the known data from the received signal and using the known data in synchronization and equalization in a digital broadcast receiver.

Abstract: The present invention allows a reproducing device that can be used in various device environmental conditions to execute adequate output operation according to a device environmental condition. When reproducing a content signal of audio and video, a reproducing device determines a device environmental condition as the coupling state of the reproducing device and surroundings of the reproducing device. Subsequently, the reproducing device implements control according to output part information and control information that are set with being associated with the device environmental condition. Based on the output part information, either or both of a main-body output unit and an external output unit are controlled as a part for outputting audio or video. In addition, control corresponding to the registered control information is executed inside the device, or details of the control are indicated to a coupled external device.

Abstract: The invention provides an apparatus, system and method for allowing multiple television (TV) sets to communicate with each other in synchronizing their audiovisual signal output (when set to the same TV channel) to allow simultaneous viewing of common programming content.

Abstract: A digital television (DTV) receiving system includes a tuner, a demodulator, a known data detector, an equalizer, a transmission detector, and a block decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed. The demodulator demodulates the DTV signal, and the known data detector detects known data included in the mobile service data. The equalizer equalizes the demodulated DTV signal using the detected known data, and the transmission parameter detector detects an error correction mode from the equalized DTV signal. Finally, the block decoder decodes the equalized DTV signal for error correction using the detected error correction mode.

Abstract: A method of controlling an adjustable antenna of a digital television receiver including (a) storing an effective power of a channel signal received through the antenna in a memory by rotating the direction of the antenna and selecting an antenna pattern when a maximum signal power is detected (b) aligning the stored antenna patterns in order of sizes of the signal powers, and (c) detecting states of the channel signal, a power of the channel signal, a maximum ghost power, and a signal vs. noise ratio and then changing a pattern of the antenna in accordance with the detected states.

Abstract: In a communication system having at least three communication devices communicating with each other, a seating-order determination device for generating seating-order information for information sent from each communication device and for transmitting the seating-order information to each communication device is provided. Each communication device controls the output position of each information according to the seating-order information to output the information sent from the other communication devices in a seating order corresponding to the seating-order information. The seating order is always automatically changed to the most appropriate condition according to the progress of a conference and the state of conversations to provide the user with a comfortable conference environment and a comfortable communication environment.

Abstract: A D/U ratio is measured for desired and undesired signals in a wireless video transmission system at a shared channel frequency based on a received signal at a geographic location in proximity to regions within respective service areas for the desired and undesired signals. A video tuner demodulates the received signal to generate a baseband video signal. A leveling circuit normalizes the baseband signal. A video processor identifies horizontal sync pulses within the baseband signal, generates a sampled signal comprising the horizontal sync pulses, and removes components of the desired signal from the sampled signal to generate an undesired signal component. A D/U analyzer determines a Fourier transform having a plurality of bins in response to the undesired signal component, identifies at least one of the bins having a spectral peak corresponding to an undesired signal, and calculates the D/U ratio in response to a magnitude of the identified peak.

Abstract: A digital television (DTV) receiving system includes a tuner, a demodulator, a known data detector, an equalizer, a transmission detector, and a block decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed. The demodulator demodulates the DTV signal, and the known data detector detects known data included in the mobile service data. The equalizer equalizes the demodulated DTV signal using the detected known data, and the transmission parameter detector detects an error correction mode from the equalized DTV signal. Finally, the block decoder decodes the equalized DTV signal for error correction using the detected error correction mode.

Abstract: The invention relates to a method for reception of a data stream, transmitted in segment in one or several broadcast channels, comprising a reception step for the data in a segment of data stream transmitted by an active broadcast channel. A step for changing reception channel allows switching from the current broadcast channel to a second channel after receipt of the data stream. A listening step on said second channel listens for an event identifying the transmission of the subsequent segment of the data stream and a step for changing reception channel by switching from said second channel to the current broadcast channel or another broadcast channel.

Abstract: Broadcast signal-receiving apparatus and a method filtering noise signals. The broadcast signal-receiving apparatus includes a tuner to convert an RF signal to a lower frequency signal to output an intermediate frequency (IF) signal, a filter to filter the IF signal to output a digital IF signal, and a controller to control the tuner to shift a frequency of the IF signal to a frequency band to remove the noise signals if the digital IF signal contains noise signals of a predetermined magnitude. Accordingly, the broadcast signal-receiving apparatus can filter the noise signals resulting from analog and digital broadcast signals adjacent to a digital broadcast signal on a channel selected for viewing.

Abstract: Method and apparatus for use with digital television receivers are included among the embodiments. In exemplary systems, the presence of an interfering analog television signal (e.g., an NTSC signal) in the same channel as a DTV signal is verified by detecting the presence of analog sync signals in the received signal band. When sync signals of the proper frequency are detected, an analog TV signal rejection filter is inserted in the DTV received signal processing path. Other embodiments are described and claimed.

Abstract: A television set includes an ATSC (Advanced Television Systems Committee) receiver, which includes an NTSC (National Television Systems Committee) co-channel interference detector based on carrier tracking of the NTSC video carrier signal. The NTSC co-channel interference detector includes a carrier tracking loop and a decision device. The carrier tracking loop processes a received signal for detecting the possible presence of the NTSC video carrier signal and for providing a tracking signal representative thereof. The decision device receives the tracking signal and recovers a DC offset therefrom. The decision device then determines that NTSC co-channel interference is present if the DC offset signal is greater than a predefined threshold.

Abstract: A method and apparatus for rejecting an interference signal from an input frequency spectrum. The method includes the steps of receiving the input signal; frequency-shifting the received input signal by a first frequency-shifting amount; and filtering the frequency-shifted input signal to filter out the interference component from the input signal.

Abstract: A communications system may include a transmitting device for transmitting a modulated signal therefrom based upon input data, and a receiving device for receiving the modulated signal from the transmitting device. The transmitting device may include a modulator, a baseband injected pilot carrier (BPIC) generator for generating BPIC data, and a framer for interleaving BPIC data with the input data to define data frames input to the modulator. The receiving device may include a demodulator, a frame recoverer, and a BPIC detector cooperating with the demodulator for demodulating the modulated signal from the transmitting device based upon the BPIC data and cooperating with the frame recoverer for recovering the data frames also based upon the BPIC data.

Abstract: An interference detecting circuit for use in an ATSC system and for detecting interference of an ATSC signal includes: a buffering module for delaying to output a first PN63 synchronization format data when receiving the first PN63 synchronization format data; a correlation arithmetic circuit coupled to the buffering module for receiving the ATSC signal and performing a correlation operation on a second PN63 synchronization format data and the delayed first PN63 synchronization format data to output a detection signal when receiving the second PN63 synchronization format data; and a determining circuit for determining whether performing interference rejection on the ATSC signal or not according to the result of the above-mentioned correlation operation.

Abstract: The invention provides an apparatus, system and method for allowing multiple television (TV) sets to communicate with each other in synchronizing their audiovisual signal output (when set to the same TV channel) to allow simultaneous viewing of common programming content.

Abstract: A method using DTV signals for positioning is provided. The method comprises the step of calculating a transmission time of a data segment of a television signal from a transmitter to a mobile receiver.

Abstract: Methods and television receivers for rejecting a co-channel interference signal from a first digital signal. A first digital signal is delayed to output a first delayed signal. In this method, an synthesized interference signal is generated based on the first digital signal. The synthesized interference signal is subtracted from the first delayed digital signal and produces a second digital signal. The second digital signal is equalized to output an equalized signal based on a first decision signal. The equalized signal is decoded to output the first decision signal. The equalized signal is delayed to output a second delayed signal. A compensation signal is generated based on the first decision signal. The compensation signal is subtracted from the delayed second signal and produces a fifth digital signal serving as an output signal.

Abstract: A circuit and a method for eliminating interference introduced from an image channel into a desired channel is described. The circuit includes a splitter and an adder. The splitter generates signals split from a received signal having frequency components within the desired and image channel. The adder adds together the signals output from the splitter. The circuit can be used in an TV tuner.