Abstract: The present invention relates to a signal processing apparatus and method, a recording medium, and a program, in which a more preferable class can be easily selected. A region extracting unit 151 extracts a class tap from an input composite video signal, and pattern detecting units 152 to 154 detect patterns for classes by using different predetermined methods. A class-code determining unit 155 determines a class based on information from an evaluation table 156, and a coefficient memory 157 supplies a predictive coefficient corresponding to the class to a predictive computing unit 159. The predictive computing unit 159 performs predictive computing based on a predictive tap supplied from a region extracting unit 158 and the predictive coefficient supplied from the coefficient memory 157, so that a component Y signal is generated and is output therefrom. The present invention can be applied to a television receiver.

Abstract: A receiver receives a digital signal. The digital signal contains a frame of robust VSB data and ATSC data, and the digital signal further contains a map. The map contains information indicating a location of the robust VSB data and ATSC data in the frame. A decoder of the receiver decodes the digital signal. A processor of the receiver processes at least one of the robust VSB data and the ATSC data according to the location information contained in the map.

Abstract: A method and an apparatus for switching input terminals based on a transmitted signal format are disclosed. The method includes issuing a command to a receiver (12) when a format of the signal has changed from digital to analog. The receiver (12) switches to an analog input terminal (122) according to the command. The apparatus includes a transmitter (10) and a receiver (12) connected with each other with a digital interface (14) and an analog interface (16). The transmitter (10) has a command generator (106) that issues the command. The receiver (12) includes a switch (128) to select an input terminal, and a selector to control the switch according to the command provided from the transmitter. The receiver also includes a digital signal processor (124) coupled to the digital interface to decode digital signals.

Abstract: Video signals in different video formats are managed by inputting and outputting video signals via multiple channels and inputting a user selection of a video format for each channel. Then, a video signal input via a first channel is automatically converted into the video format selected for a second channel, and the video signal, in the video format selected for the second channel, is output via the second channel. Also, video signals in different video formats are managed by inputting and outputting video signals through multiple channels, with each such channel having an associated video format. A user designation is input that an output of a user-designated first channel should provide an output video signal corresponding to an input video signal input via a user-designated second channel.

Abstract: A color system discriminator is provided with a frequency detector, a vertical-synchronizing frequency detector, a plurality of color demodulators, a demodulating switch, and a controller. The type of the color system of a received signal is determined with reference not only to the burst lock frequency indicated in the tuner detection signal and the phase of the R-Y color difference signal of the image signal, but also to the frequency of the sound carrier signal and the vertical synchronizing frequency.

Abstract: A method and an apparatus for switching input terminals based on a transmitted signal format are disclosed. The method includes issuing a command to a receiver when a format of the signal has changed from digital to analog. The receiver switches to an analog input terminal according to the command. The apparatus includes a transmitter and a receiver connected with each other with a digital interface and an analog interface. The transmitter has a command generator that issues the command. The receiver includes a switch to select an input terminal, and a selector to control the switch according to the command provided from the transmitter. The receiver also includes a digital signal processor coupled to the digital interface to decode digital signals.

Abstract: For use in a digital television receiver, there is disclosed a system for receiving audio and video digital signals. The system comprises a digital network interface coupled to a digital main board for receiving baseband audio and video digital signals and a digital video decoder coupled to the digital network interface for decoding audio and video digital signals from the digital network interface. The digital video decoder sends the decoded signals to the digital main board. The system also comprises an analog television chassis having an input that is capable of receiving audio and video analog signals. The digital main board digitizes the analog signals into a digital transport stream prior to processing.

Abstract: A digital TV receiver 2 receives digital TV broadcasts and an analog TV receiver 1 receives analog TV broadcasts. A switching control 6 switches between either digital or analog signals to a speaker 7 and a display 8, according to the conditions of received digital and/or analog broadcast waves. Digital broadcast outputs, such as images, cannot be obtained if the field intensity of received broadcast waves is too low for the application of error correction to them. Even in that event, the present equipment can continue image outputs by switching to the analog broadcast. Preferably, the switching control 6 uses the packet error rate during the demodulation of received digital broadcast signals as the index of the conditions of the received waves to perform an output switch between digital and analog broadcasts, according to the error rate.

Abstract: A method and apparatus for switching input terminals based on device capability are disclosed. The method supplies a digital signal and an analog signal to a device. The method includes examination of whether or not a device is receiving a digital signal in an eligible format. The method also selects an analog input terminal to receive an analog signal unless the digital signal is being provided in the eligible format. The apparatus includes a digital input terminal to receive a digital signal, an analog input terminal to receive an analog signal, an IEEE1394 interface coupled with the digital input terminal, a HD decoder coupled with the IEEE1394 interface, a memory and a selector which selects the digital input terminal if the digital signal is in an eligible format for the device. The apparatus otherwise selects the analog input terminal.

Abstract: At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively.

Abstract: A channel selection method for simultaneously displaying video data of a plurality of virtual channels of one channel in the form of still images, in SD format broadcasting according to an ATV standard, and displaying video data of one of the virtual channels which corresponds to a cursor position in the form of a moving image, allowing easy selection of a desired channel from the displayed screen. A channel selection apparatus includes elements of a typical ATV system, i.e., an antenna, a tuner, an IF module, a channel decoder and a TS decoder.

Abstract: A display apparatus and computer system employing the same include a dual mode television/monitor display which is operable to provide television display output in an interlaced mode of operation and computer output in a noninterlaced computer graphics mode of operation in a visually detectable manner and further includes a communication channel for transmitting commands from the host computer system to the display apparatus. The display apparatus contains a microprocessor for receiving commands from the host computer system for switching the display between the interlaced and noninterlaced modes of operation. In a further aspect, a method of transitioning the dual mode display between the television and computer graphics modes of operation via a host computer system is provided.

Abstract: A dual mode tuner/receiver is disclosed in which both analog and digital signals can be received and processed. A low pass filter allows all channels below a selected frequency enter the circuit. A precisely controlled dual conversion circuit creates an intermediate frequency (IF) signal. An automatic carrier detection circuit monitors the IF signal and determines whether the signal is of analog or digital format and intermediate frequency filters are adjusted based upon the type of signal detected. A coherent oscillator circuit generates in-phase and quadrature reference signals that are used by video and audio detectors for further processing of the IF signal. In-phase and quadrature outputs are provided for digital signals and composite video and audio outputs are provided for analog signals.

Abstract: The present invention is directed to a display device such as a liquid crystal display including: a horizontal clock counter and a vertical clock counter which count each clock signal every horizontal cycle and every vertical cycle for a valid data period of a data enable input signal; and an input signal generating section for holding a count value and generating an input signal in a driver IC and a driving circuit corresponding to a resolution of the display device which is obtained at that time by utilizing a count value held at a last time for a next horizontal cycle or a next vertical cycle, the display device being applicable to the driver IC and the driving circuit which can be used for the display device having various resolutions.

Abstract: A system and method for processing a channel entry is presented. In one embodiment, the receiving mode of an apparatus is first determined. A first channel entry format is then displayed, if it is determined that the apparatus in the first receiving mode. A second channel entry format is displayed, instead, if it is determined that the apparatus in the second receiving mode. Furthermore, the first channel entry format comprises a first and a second information portions and the second channel entry format comprises a third information portion.

Abstract: A digital TV system and a method for supporting a film mode in a digital TV system include generating an original frame from two fields except for repeated fields among 60 fields inputted in an interlaced scanning method if the film mode is detected, and converting the generated frames into 60 frames of a progressive scanning type by repeatedly outputting the generated frames three times or twice by a specified rule, setting an input audio signal to match the film mode in consideration of the number of speakers provided in the digital TV and the number of channels of the input audio signal, and displaying an icon for indicating the film mode on a predetermined position of a TV screen. Thus, a viewer can view the film with a higher picture quality and with reality through the DTV.

Abstract: A system for providing a common transport signal comprising an analog information signal and a digital information signal including a transmitter and a receiver for the common transport signal is disclosed. The transmitter includes an analog information signal modulator, placing the analog information signal onto a first intermediate frequency, a digital information signal modulator, placing a digital information signal onto a second intermediate frequency, a first upconverter and amplifier for upconverting the analog information signal, and a second upconverter for upconverting a frequency translated digital information signal. The system includes a power combiner for adding the upconverted analog and digital information signal to form a common transport signal. The receiver includes a signal receptor and conditioner, a signal splitter and dual signal recovery chains; each chain including at least a downconverter, a bandpass filter and intermediate frequency amplifier, and a signal demodulator.

Abstract: A combined terrestrial wave/cable broadcast receiver is disclosed which identifies if a cable broadcast program being carried and received or a cable broadcast program to be received is a HD broadcast and receives a HD broadcast from a terrestrial wave broadcasting station in the form of a HD terrestrial wave broadcast automatically or according to a user's selection, and a program information processing method therefor which processes program information such that it can identify a cable broadcast program as a HD broadcast in an EIT.

Abstract: An image display apparatus capable of automatically controlling an output status for each of audio information signals inputted with image information signals from various different image sources. A first signal input circuit inputs an image information signal and an audio information signal from a personal computer. A second signal input circuit inputs an image information signal and an audio information signal of a television signal. An image selection circuit selects the first or second signal input circuit. An image conversion circuit converts the selected image information signal to a signal having the number of pixels corresponding to a display circuit. An audio signal selection circuit selects the first or second signal input circuit. An audio signal control circuit controls an output status for the input audio signal. An operation device inputs a setting of the image display apparatus, such as luminance, by user's operation.

Abstract: An apparatus for processing a signal in a digital television, and more particularly, an apparatus for adaptively processing an externally-input video signal in a digital television, in which a signal processing route is controlled to automatically determine the type of a video signal, which is input to an external input terminal, and to adaptively process the video signal regardless of whether the signal is an interlaced scanned video signal or a progressive scanned video signal, is provided.

Abstract: A video format converting apparatus which optionally converts the sizes of input and output videos includes a mode generator for generating a control signal of required data flow and a clock required for format conversion by determining a format conversion structure after receiving format data of input and output videos, a format converter of which input/output data path is controlled to a corresponding operation mode by the control signal, for independently format converting the input video synchronized with the clock in vertical and horizontal directions, and a plurality of multiplexers for providing proper video to the format converter in accordance with the signal of the mode generator. When various kinds of input videos are format converted to various kinds of output videos, it is possible to reduce the capacity of required hardware and the capacity of the memory. Thus, a minimum memory band width is required.

Abstract: A television signal receiver, especially a satellite receiver, operable to receive and process incoming television signals, automatically determines which television signal standard to utilize for its output based on a parameter of the electrical power supply or supplied electricity. Frequency and voltage of the electrical power are measurable parameters that may be used to determine whether the NTSC or PAL (PAL-M or PAL-N) television signal standard is more probable as the local preference and automatically causes the television receiver to code received television signals in that format for output. The present invention utilizes the principle that the local television standard coincides in some manner with the local power line frequency and voltage.

Abstract: A device for canceling co-channel interference and a method thereof are provided. The device, in a simulcast receiver for receiving a high definition television (HDTV) signal having a digital format and an analog broadcasting TV signal, includes a detector for detecting a synchronous signal from the analog broadcasting TV signal and outputting a detection signal, a co-channel interference rejection filter for removing co-channel interference from a first input signal including co-channel interference and outputting a second input signal, and a selector for selecting either the first or second input signal according to the detection signal. Therefore, the presence or absence of co-channel interference can be accurately determined regardless of channel environment.

Abstract: A memory management process for buffering progressive, interlaced, CCIR 601/656 compliant, and MPEG compliant video signals in a video memory that is partitioned into first and second buffers. The process includes identifying the format of a received video signal, buffering the received video signal in the video memory in accordance with a standard buffering mode if the video signal is in an interlaced, CCIR 601/656 compliant, or MPEG compliant format, and buffering the received video signal in the video memory in accordance with an override buffering mode if the video signal is in a progressive format such as a 240p signal generated by a game console, VCR, cable text generator, and the like.

Abstract: The present invention is directed to a display device such as a liquid crystal display including: a horizontal clock counter and a vertical clock counter which count each clock signal every horizontal cycle and every vertical cycle for a valid data period of a data enable input signal; and an input signal generating section for holding a count value and generating an input signal in a driver IC and a driving circuit corresponding to a resolution of the display device which is obtained at that time by utilizing a count value held at a last time for a next horizontal cycle or a next vertical cycle, the display device being applicable to the driver IC and the driving circuit which can be used for the display device having various resolutions.

Abstract: A cable converter box is a capable of receiving a cable signal that includes both NTSC and digital television (DTV) formatted signals. When the converter box is tuned to a channel, the converter box determines whether the channel carries an NTSC or DTV signal. If the signal is NTSC, the signal passes through an up/down converter, is demodulated in a conventional manner, and is remodulated in order to be provided to the TV on a pre-selected channel. If the signal is DTV, the signal passes through the up/down converter, but not through the demodulator, prior to being output to a DTV-compatible TV on the same pre-selected channel as the NTSC signal. This prevents the user from having to change the tuner on the TV when the cable converter is changed to a DTV channel.

Abstract: A plasma display device and a method of driving a plasma display which are capable of performing suitable display control in response to the signal format of an input signal are provided. Either a television signal or a graphic signal is inputted as the input signal. A signal format identification circuit identifies whether the signal format of the input signal is the television signal or the graphic signal. A mode-by-mode control signal generating portion determines the driving sequence of a driving circuit in response to the identified signal format to perform the driving control of the driving circuit. Then, a display panel is driven in response to the signal format of the input signal to display an image.

Abstract: The present invention provides a digital video receiving apparatus for displaying a plurality of digital TV pictures on a plurality of receiving terminal apparatuses. The digital video receiving apparatus includes a tuner for extracting the received digital TV multiplexed signal, a demodulator for decoding the digital signals provided from the tuner, a demultiplexer for demultiplexing the multiplexed signals outputted from the demodulator to obtain a bit stream including a video signal, an audio signal and a data signal. The digital video receiving apparatus further includes a video decoder, an audio decoder and a data decoder for decoding signals outputted from the demultiplexer. The digital video receiving apparatus decodes the input multiplexed digital TV signal and outputs a video signal, an audio signal and a data signal corresponding to respective programs.

Abstract: A display timing generator is provided for selecting line types and providing synchronization timing signals for video signals. The display timing generator provides programmability for the user to select line types for a frame to be displayed on a display. The line types defining rise and fall times, synchronization shapes, blanking levels and horizontal and vertical timings for providing a desired display format to different display types. A plurality of programmable parameters for pulse width, horizontal timing and voltage amplitude allow a user to define timing variations associated with a given line type. The display timing generator also includes a generic mode for allowing a programmer to select line types for particular groupings of lines.

Abstract: Disclosed is a method of managing an image display apparatus of the present invention. The method includes the steps of: (a) obtaining a first information on a predetermined output image format; (b) obtaining a second information on an input image format and a data broadcasting contents format; (c) comparing the first information on the predetermined output image format with the second information on the input image format and the data broadcasting contents format; (d) controlling output modes of the input image format and the data broadcasting contents format according to the predetermined output image format based on a comparison result of the output image format, the input image and the data broadcasting contents format performed by the comparing unit; and (e) outputting on image display unit the input image and the data broadcasting contents output modes of which are processed.

Abstract: A receiver to receive a mixture of progressive and interlace video broadcast signals without being conscious of switching between the broadcasting systems. The receiver receives the mixed video broadcast signals having different formats, converts received video signals to video signals having a different signal format from the signal format of the received video signals. The receiver simultaneously outputs the received video signals and the converted video signals. This allows the user to be unaware of any switching when the video input changes between the different broadcasting systems, by connecting a television set to either the interlace scanning system output or the progressive scanning system output of the receiver.

Abstract: Provided is a display apparatus having an improved structure in which all of current and future personal computer (PC) signals and high definition TV (HDTV) signals as well as normal TV signals can be displayed with optimum picture quality. The display apparatus includes a format converter which inputs a video signal of various specifications, converts the video signal into a video signal having a similar horizontal frequency and outputs the video signal having the similar horizontal frequency, a driver which drives a display unit using the video signal converted through the format converter, and a deflection driver which generates a deflection signal appropriate for a video signal having converted formats based on horizontal and vertical frequencies of the video signal having the converted formats output from the format converter and supplies the deflection signal to the display unit.

Abstract: Anode voltages A′ and B′ corresponding to video signals A and B are switched by a first switch and supplied to an anode. Cut-off voltages A and B corresponding to the video signals A and B are switched by a second switch and added to a video signal by an adder. A resultant signal is supplied to a cathode. In a CRT, the luminance rises in association with the step-down of the cut-off voltage and the step-up of the anode voltage and the resolution rises in association with the step-up of the cut-off voltage and the step-up of the anode voltage. The first and second switches are switched in accordance with the format of the input video signal respectively, thereby properly selecting the anode voltage which is applied to the CRT and the cut-off voltage. The video image can be displayed by the CRT at the luminance and resolution according to the video signal without changing a driving voltage.

Abstract: In a video system incoming video having a given frame size is sent over a video transmission system that supports a different frame size. When a transmitting terminal in the transmission system receives the incoming video, the terminal does not scale the video to fit the transmitted frame size. Instead, the video compression encoder only encodes and sends the data associated with the incoming video. The encoder does not encode or send the rest of the standard transmitted frame. At a receiving terminal in the transmission system, all of the received data is decoded. However, because the decoded data will correspond to the original incoming frame size, this data, rather than the entire transmitted frame, is scaled to match the size of the display or the target window.

Abstract: A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result.

Abstract: A dual HDTV/NTSC receiver for recovering one of a HDTV signal and a NTSC signal coexisting in a desired channel includes a tuning unit for converting a desired one of HDTV signals and NTSC signals into an intermediate frequency (IF) signal, a sync detector, coupled to receive the IF signal for detecting a sync signal of the NTSC signal, a timing recovery unit, coupled to receive the IF signal for self-recovering symbol timing of the applied HDTV signal, and providing a symbol timing lock signal corresponding to the IF signal and an analog-to-digital converted HDTV signal, a controller for judging whether a currently received television signal is either a NTSC signal or a HDTV signal based on the sync detection result of the sync detector and the symbol timing lock signal from the timing recovery unit, and for outputting a control signal according to the determination result, and a tuning controller for initially controlling the tuning unit so that one desired HDTV signal is received, and for subsequently cont

Abstract: A video signal processor (1) for converting standard definition and progressive scan video data signals from digital form to analogue form comprises a video signal processing circuit (7) in which the signals are converted. The respective standard and progressive video data signals are received on first and second clock signals CLOCK—1 and CLOCK—2, respectively, which are of identical frequency and have a constant phase relationship. An interface circuit (10) for interfacing the standard definition and progressive scan video data signals with the video signal processor (7) comprises a first register (20) into which the progressive scan signal is clocked on the second clock signal CLOCK—2. The progressive scan signal is clocked from the first register (20) to a second register (21) by the first clock signal CLOCK—1 and in turn from the second register (21) to a third register (22) by the first clock signal CLOCK—1.

Abstract: A device for receiving, storing and displaying television images. The device comprises a buffer (2) for storing television images. Television images having a first frame frequency are received at an input (4). Television images having a second frame frequency are supplied at an output (6). The buffer is adapted to store and read television images. A number of X consecutive television images stored in the buffer lie between a television image read at a given instant from the buffer and a television image stored at substantially the same instant. In a first state, X increases with time. In a second state, X decreases with time. The device further comprises a control device (12) for generating a first control signal (14) for bringing the device from the first to the second state, and a second control signal (16) for bringing the device from the second to the first state.

Abstract: A system, method, and apparatus for utilizing a single video input for receiving multiple video format signals in an electronic video receiver. The single video input includes a set of inputs to accommodate a component video signal from any one of a multitude of video components that output video signals in component video format. An input video signal in one of several component video formats provided to the single video input is selected and processed according to its video format. Once processed, the selected input video signal is output as an output video signal of a particular video format. The particular video format is compatible with a video format utilized by an external component.

Abstract: A high definition television monitor adapted to display a program guide, for example an electronic program guide demonstration, in low definition mode (1H) and automatically switch to high definition mode (2H) upon completion of the program guide display.

Abstract: An image data display apparatus includes a terminal display unit, an NTSC display unit, and a frame memory having a first port and a second port, for storing an image data. A display timing control unit generates a terminal display timing signal and an NTSC display timing signal. A frame memory control unit generates a first read control signal in response to the terminal display timing signal such that the image data is read out from the first port of the frame memory, and a second read control signal in response to the NTSC display timing signal such that at least a part of the image data is read out from the second port of the frame memory. A first converting unit converts the image data read out from the first port of the frame memory into a terminal display signal such that the read out image data is displayed on the terminal display unit.

Abstract: A video signal processor includes a receiver unit receiving a broadcasted wave, an identify unit identifying a broadcasting system according to a signal received by the receiver unit, and a plurality of data driven processors processing a video signal received by the receiver unit according to the broadcasting system identified by the identify unit. Since the plurality of data driven processors process a video signal received by the receiver unit according to the broadcasting system identified by the identify unit, video data corresponding to the broadcasting system can be generated.

Abstract: A television receiver comprises an input circuit (1) for Y, PB, and PR signals of an external component video input signal, a matrix circuit (5) having a function of converting luminance signal Y and transmitted chrominance signals PB and PR into primary color signals R, G, and B, and a function of converting luminance signal Y and color-difference signals B-Y and R-Y into primary color signals R, G, and B, and a color-difference conversion circuit (8).

Abstract: An image frame synchronizing apparatus and a method thereof which receive image signals from a plurality of image signal sources, detect a synchronous signal from the image signal of one image signal source among the plurality of image signal sources, and synchronize the image frames of image signals from the image signal sources according to the frame synchronous signal, in order to display the images in one frame unit.

Abstract: A clock generator is provided which comprises a reference signal generator; a voltage controller/generator to generate a dot clock signal; a frequency divider to divide the frequency of the dot clock signal supplied from the voltage controller/generator; a phase comparator to detect a phase difference between the reference signal supplied from the reference signal generator and a signal supplied from the frequency divider; a frequency division ratio setter to set the frequency division ratio in the frequency divider to less than a quotient resulted from division of a total number of horizontal pixels in each of the video signals by a greatest common divisor of the total of horizontal pixels in the video signal having one format and total number of horizontal pixels in the video signal having the other format; and a frequency division ratio selector to select a frequency division ratio set by the frequency division ratio setter correspondingly to a format of a video signal.

Abstract: An architecture for convergence systems is disclosed. The architecture includes a hardware component providing a convergence environment. A channel map services component includes a listing of receivers of programming associated with the convergence environment and a listing of channels associated with the receivers. A content services component includes a listing of programming events associated with the channels of the receivers. The content services component also includes a listing of the times of programming events. A TV services component uses the channel map services component, and the content services component to control the hardware component of the convergence environment to manage the hardware component of the convergence environment. The TV services component controls the audio/video multiplexer to reroute programing signals from receivers to outputs of the audio/video multiplexer and various devices attached to the outputs, at various times.

Abstract: A digital/analog broadcast signal processing unit is provided by which a video/audio signal can be processed by receiving an analog broadcast signal and a digital broadcast signal and switching a signal processing block which is used in common for digital broadcast signal processing and analog broadcast signal processing.

Abstract: A receiving apparatus and a receiving method arranged to reduce the delay time of tuning to and reception of a digital TV broadcast actually and apparently. A coefficient memory for storing coefficient data to be supplied to a channel equalizer of a front end section is provided. A control section generates equalizer coefficients supplied to the channel equalizer by using the equalizer coefficients in the coefficient memory, and updates the equalizer coefficients stored in the coefficient memory by substituting the generated equalizer coefficients for them. The control section supplies a predetermined video signal to a display section instead of a video output from a decoding section before the video output from the decoding section is obtained.

Abstract: A memory and a switchable digital filter supply different numbers of digital distortion correction values. The supplied distortion correction values are converted to an analog distortion correction signal. A passive, analog low pass filter for the analog distortion correction signal generates an analog deflection signal. The low pass filter is optimized only for those of the analog deflection signals having a given sample rate. A controller varies the different numbers of the supplied distortion correction values to maintain the given sample rate of the analog deflection signal for different horizontal scanning rates. The controller selectively implements respective operating modes for different horizontal scanning frequencies in which no interpolated distortion correction values are supplied or different numbers of interpolated distortion correction values are supplied.

Abstract: In a channel managing apparatus and method for a digital/analog TV, if a user selects a desired channel, a type of broadcasting corresponding to the channel selected by the user is automatically switched to tune the channel. The channel managing apparatus for a digital/analog TV includes a memory for storing tabled channel information of all the broadcasting signals including digital and analog broadcasting signals, a controller for extracting channel information corresponding to a channel selected by a user if the user selects the channel and for outputting a control signal to tune the corresponding channel, a first switching portion for selecting one of outputs of a digital broadcasting receiver and an analog broadcasting receiver, and a signal processing and display portion for processing and displaying output signals of the first switching portion.