Abstract: A video signal detecting circuit includes a synchronization detector for detecting a vertical synchronous signal in an input video signal. A counter starts counting pixel clock pulses in response to every vertical synchronous signal thus detected, and outputs a first signal when the count of pixel clock pulses reaches a preselected value. A comparator compares the vertical synchronous signal detected with the first signal for outputting a second signal representative of a difference between them. A mean circuit produces a mean value of the second signals over a plurality of pictures of the input video signal. An adjusting circuit adjusts the vertical synchronous signal with the mean value to output the resultant adjusted signal as a vertical synchronous signal. The preselected number is substantially equal to the standard number of pixels included in a single picture.

Abstract: Signaling a display device to automatically characterize a video signal is disclosed. In a method of an embodiment of the invention, a display device that has a video signal characterization circuit is signaled to automatically characterize a video signal of a video source. A predetermined characterization image is provided on the video signal of the video source for the display device to automatically characterize.

Abstract: A decision feed back equalizer provides two feedback routines for one symbol-preceding decided data. The signal space is separated into decidable areas and uncertainty areas. Within each of decidable area the distance between any point and the signal point is small. Within each uncertainty area the distance between any point and the signal point is large. If the symbol-preceding equalized signal is in a decidable area, the piece of decided data is fed back, as it is presumed to be correct. If the symbol-preceding equalized signal exists in an uncertainty area, the piece of decided data is not fed back, as it is presumed to be in error. Here the one piece data is selected from all the predicted symbol-preceding decided data so that the instant equalized data is now in the decidable area. This piece of decided data is now fed back.

Abstract: A method for detecting dynamic video pixels by using adaptive counter threshold values according to field difference value of the frame in the video, thereby to determine whether the frame is an interlaced frame or a progressive frame and to eliminate incorrect judgements resulting from field difference and to improve accuracy of frame determination.

Abstract: The invention provides a multimedia terminal equipment which can reproduce and output an object broadcasting program irrespective of a providing medium and so forth of the program. The multimedia terminal equipment includes a digital signal processing circuit in the form of a digital signal processor which is programmable to process various kinds of digital broadcasting signals of different formats. A program to be used for processing of an object digital signal is read out from a ROM by a host CPU in response to a selection input from a user and supplied to the digital signal processing circuit. In accordance with the program, the digital signal processing circuit processes a digital signal outputted from a traffic controller in response to the selection input of the user.

Abstract: A video processing system and method are provided for generating clock and timing signals from an incoming video signal. The system includes a timing reference circuit for generating a reference clock signal, a video format detector coupled to the reference clock signal and to synchronization data derived from the incoming video signal for generating a format signal indicating the format of the incoming video signal, and a clock and timing generator circuit coupled to the format signal and the reference clock signal for generating clock and timing signals that emulate the incoming video signal, and may be locked to the incoming video signal.

Abstract: The invention relates to a method for encoding video signals corresponding to a sequence of frames constituted either from video-type images or film-type images. These film-type images are obtained by means of the 3:2 pull-down technique involving a subdivision of each film frame into two fields and a duplication of two fields within each group of four subdivided frames. The encoding step of the signals is preceded by a preprocessing step that includes thresholding the eight absolute values of the successive pixel-to-pixel differences between fields of the same parity. Measuring the density of “1” (resp. “0”) per block of m×n pixels of the field structure leading to mark each pixel as 1 or 0. Detecting in any group of ten successive fields within the preprocessed signals thus obtained, the film pattern formed by the duplicated fields.

Abstract: In display apparatuses, particularly television receivers and monitors, a video picture can be inserted into a main picture (HB) from a first video signal (VS1), in which a second picture (ZB) from a second video signal (VS2) has a first picture format and is composed of picture lines (BZ) and filling lines (FZ). The picture lines (BZ) forming a sub-picture (UB) with the second picture format is adjoined by the filling lines (FZ) in the vertical picture direction. The second picture format of the sub-picture (UB) is determined and the determined second picture format is used for determining the filling lines (FZ). The picture lines (BZ) and a portion of the filling lines (FZ) are inserted as an insertion picture into the main picture (HB). Additional insertions (OSD) from an additional signal, which at least partly lie within the filling lines (FZ), is displaced into the sub-picture (UB).

Abstract: An apparatus discriminates a color format. The signal processing paths separate a luminance signal and a color signal from a broadcasting signal based on a plurality of color formats. The direct signal path provides a direct output of the broadcasting signal without separating the luminance signal and the color signal therefrom. The relay device selectively relays the broadcasting signal as input to any one of the respective signal processing paths and the direct signal path. The detection device detects color format variation of the broadcasting signal based on an output signal from the signal processing paths. The discrimination device discriminates the color format of the broadcasting signal based on the broadcasting signal as input through the direct signal path. The control device controls the relay device to relay the broadcasting signal to the direct signal path when color format variation is detected by the detection device.

Abstract: A process for detecting black bands in a video image within a luminance range corresponding to low luminance values comprises the steps of: calculating, for each line situated in a location in which a black band can be expected to be found if present in said video image, a value relating to a maximum number of occurrences of points having the same luminance value; averaging said value over said lines in said location; calculating a threshold dependent on said average; and, comparing said value relating to said maximum number of occurrences obtained for a new line with said threshold. Applications relate, for example, to the detection of the “letterbox” format.

Abstract: A method and apparatus for providing adaptive horizontal synchronization (sync) signal detection to identify whether a high quality television signal is being received by a television set. The method determines whether no signal is applied, whether a weak signal is applied or a strong signal is applied to the television set by sampling and processing the horizontal synchronization signal. The signals are classified by comparing the sample horizontal synchronization signals to a predefined threshold. The threshold is established based upon the type of source that produced the television signal.

Abstract: A method and system for decoding and storing encoded control data delivered via the horizontal overscan area of a video signal. An interactive device such as an interactive toy performs behavior defined by control data that can be encoded into a video signal that can be broadcast or played-back from video tape. The interactive device is equipped with a non-volatile memory that permits the control data to be stored for performance subsequent to the transmission session (e.g., a televised program). The interactive device also may be equipped to perform behavior during the transmission session. The control data is delivered as a series of control data words that include genus codes and sequence codes. Genus codes identify the interactive device to which the data word is directed, so that a particular interactive device will respond (i.e., perform behavior) only in accordance with the control data words including the appropriate genus code.

Abstract: An apparatus and method for automatically detecting a display mode to be used in a serial data interface (SDI) of a decoded video signal is provided. The apparatus for detecting a display mode includes a mode detector which detects a predetermined display mode by counting clock pulses generated between a present horizontal synchronous signal and a next horizontal synchronous signal from input decoded video signals, and a signal processing unit which converts formats of the decoded video signals so as to correspond to a display mode detected by the mode detector, serializes and outputs the decoded video signal. By deleting a control signal indicating a display mode, a control signal that does not coincide with processed data as a result of an incorrectly or incompatibly designed controller can be prevented.

Abstract: A method and apparatus of identifying the source of materials in a video sequence is disclosed. A series of pseudo frames is formed, for example by interleaving, from fields in adjacent frames. A correlation value is calculated for each of the pseudo frames. The correlation value may be a sum of absolute difference (SAD) of luminance values of every neighboring scan line accumulated over the entire pseudo frame. Scene changes may be determined, for example, based on the correlation values. Frames and repeated fields are identified based on the correlation values and the scene changes. Finally, the source of each frame in the series is identified based on the identification of frames and repeated fields.

Abstract: A receiving apparatus provided with an analyzer adapted to analyze a reception signal, a memory adapted to store therein information on plural broadcasting systems, a judgement unit adapted to judge a signal broadcasting system on the basis of the results of an analysis made by the analyzer and the information on the broadcasting systems stored in the memory, and a reception processor adapted to receive and process a signal on the basis of the results of a judgement outputted from the judgment unit. This enables a receiving apparatus capable of judging and receiving broadcasts of plural broadcasting systems automatically with a high accuracy to be obtained.

Abstract: An adaptive digital image processor precedes an MPEG2 encoder. The processor receives a high definition video signal intended for broadcast or storage, and adaptively low-pass filters the signal. The signal is subjected to low-pass two-dimensional filtering to eliminate encoding artifacts and related noise. The video signal is then horizontally down-sampled to create a lower resolution hybrid signal. A receiver decodes and decompresses the hybrid signal. The hybrid signal is upsampled to its original resolution using existing hardware and software with a software modification.

Abstract: A television line doubler (interlaced to progressive scan converter) incorporating the following aspects—an improved field motion detector which does not treat low frequency vertical transitions as motion; a frame motion detector having an improved ability to differentiate motion from subcarrier signal components; a sawtooth artifact detector; a sawtooth artifact detector in combination with a film pattern detector, such that the artifact detector can take the film pattern detector out of film mode earlier than it would if it only were responsive to a break in the film pattern; tandem field motion detectors; an improved field based film detector; film pattern detectors and motion detectors used therewith which operate by performing end-of-field calculations; the combination of a field motion detector and a frame motion detector such that the frame motion detector provides a motion signal used as a verification by the field motion detector; an improved NTSC film detector requiring a minimum number of NTSC film

Abstract: The present invention aims to provide projectors for use in a multi-display system which allows images having arbitrary formats to be easily displayed in a variety of display patterns. To achieve this object, the projector in accordance with the present invention have the input pattern memory storing input format parameters and display pattern memory storing display parameters. The source images are processed based on the input format parameters and the display parameters, whereby the source images having different formats are displayed in a variety of display patterns.

Abstract: An inverse telecine conversion arrangement and methodology that accurately judges whether entered moving television picture information is originally a television material or a cinematic material, and performs inverse telecine conversion based on a result of the judgement. The apparatus includes a structure judging portion which judges whether a structure is a frame structure or a field structure based on adjacent pieces of field image information in the received moving television picture information which are adjacent to each other in terms of time; and a pattern judging portion which determines that the received moving television picture information has a predetermined pattern based on a pattern in which a field structure and a frame structure judged by the structure judging portion are successive to each other, and when the pattern judging portion recognizes the predetermined pattern, a corresponding piece of the received moving television picture information is inverse telecine converted.

Abstract: A method of selecting a portion of a block of data for display based on characteristics of a display device. The method comprises several steps. In the first step, a block of Electronic Program Guide (EPG) data is received at a communication device adapted to process this data. Next, an input is received at the communication device regarding an appearance of the display device. The communication device can be a set-top box. The appearance of the display includes, but is not limited to, the resolution, the aspect ratio (AR), and the physical size of the display. Based on these inputs, the communication device next selects a portion, more or fewer columns or rows, of the block of EPG data to be displayed on the display device. The portion of the EPG data selected is formatted and communicated to the display device, e.g. television, for viewing by the user.

Abstract: A method and apparatus for detecting and correcting motion artifacts in interlaced video signal converted for progressive video display. A correction is applied where interlaced video material is determined to originate from film source, thereby having been converted to video using a process known as 3-2 pulldown. Where the video material is not a result of the 3-2 pulldown process, a check is made for the presence of “pixel motion” so that corrections may be applied to smooth out the pixel motion. To determine 3-2 pulldown or field motion, a video field is compared to the field prior to the previous field to generate field error. Field errors are generated for five consecutive fields and a local minimum error repeated every five fields indicate the origination of the video material from film source using the 3-2 pulldown process.

Abstract: A television receiver includes a switching portion which receives each of a video signal received and obtained by an antenna and a video signal read from a storage medium, and selectively outputs one of the video signals in response to an instruction signal for output selection, a detection portion which detects a mode of a video signal, a selection/control portion which supplies the instruction signal for output selection to the switching portion, and outputs a detection result corresponding to a preset specific mode from the detection portion, a signal processing portion which applies sequential scanning conversion processing to the video signal selected and output by the switching portion, and a display portion which displays the video signal subjected to the sequential scanning conversion processing.

Abstract: A video signal transmission device comprising a video signal generation unit configured to generate a video signal based on information obtained from a predetermined information source, a signal format judgment unit configured to judge a signal format of the video signal generated by the video signal generation unit, a format information hold unit configured to hold format information indicating a format of the video signal, a signal format conversion unit configured to convert the format of the video signal generated by the video signal generation unit based on the format information held by the format information hold unit and the signal format judged by the signal format judgment unit, and a video signal transmission unit configured to transmit the video signal outputted from the signal format conversion unit.

Abstract: Provided is a method and apparatus for detecting a film source using Frequency Transform. The method includes: performing predetermined Frequency Transform on a predetermined reference pattern and storing a pattern of magnitudes of the resultant values of the predetermined Frequency Transform; receiving a predetermined number of similarity values that are measured between the same types of adjacent two fields of video including interlaced fields; performing predetermined Frequency Transform on the similarity values; and comparing magnitudes of the similarity values with the magnitudes of the predetermined reference pattern, and if differences between the magnitudes of the similarity values and the magnitudes of the predetermined reference pattern are within a predetermined range, determining the video as the film source.

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 format converting apparatus and method for performing a resolution conversion, frame rate conversion, scanning method conversion, aspect ratio conversion, chroma format conversion, color space conversion, gamma correction, and geometric correction in one chip are disclosed. A digital TV can process various video signal standards such as the digital TV signal, the analog TV signal, the computer video signal, and the component signal as well as other video signals of more wide range in a same block. More especially, since all format conversion is performed in one chip, new additional input signal does not make addition of the hardware so that the cost can be reduced.

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: Field-based detection of 3:2 pulldown in a sequence of digital video fields using a programmable graphics processor is described. The detection is performed using a threshold value to determine equivalence between a pair of fields of digital video data. Furthermore, additional threshold values may be used to control switching into a mode where duplicated fields of digital video data are identified and not displayed and out of the mode where duplicated fields of digital video data are identified and not displayed. Look ahead can be used to detect when to switch into or out of the mode where duplicated fields of digital video data are identified and not displayed, reducing the occurrence of visual artifacts.

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: A film mode detection method using a periodic pattern of a video sequence comprises the steps of: computing every absolute value of differences between every pair of corresponding pixels in two fields which are arranged within a predetermined distance on a time line; comparing a sum of the absolute value of differences between every corresponding pixels in two fields with the first predetermined threshold value M1 and limiting the sum to the first threshold value if the sum is greater than the first threshold value; filtering the video sequence and calculating a power of the filtered sum; and comparing the calculated power with the second predetermined threshold value M2 so as to determine the signal as a film mode if the power of the sum is greater than the second threshold value.

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: A video monitor including circuitry that provides information regarding characteristics of the monitor to an external video source. The circuitry may be a register that holds data from which the aspect ratio and resolution of the display may be derived.

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 system and method are provided for displaying a video composed of images each comprising a predetermined number M of lines and, a predetermined number N of pixels in each line. Values of a predetermined number P of reference pixels for each line of a current image of the video are stored in memory, where P is less than N. For each line of the current image, the value of a parameter associated with the line is determined, with the parameter corresponding to the number of the reference pixels of the line that are black according to a first predetermined criterion. A first nonblack line and a last nonblack line of the current image are determined to serve as a basis for an automatic reframing of the images of the video before display.

Abstract: Video data is processed. A first high definition program stream is received that includes a first high definition video stream component. A first standard definition program stream is derived from the high definition program stream. A second standard definition is received having been derived from the first standard definition program stream. A second high definition program stream is derived from the second standard definition program stream and the first high definition video stream component.

Abstract: There are provided an analog tuner for receiving analog broadcasting and a digital tuner for receiving digital broadcasting. An EPG decoder extracts EPG data in analog broadcasting, and a demultiplexer extracts EPG data in digital broadcasting. A CPU receives each of the EPG data, to judge whether or not the same program is being broadcast in analog broadcasting and digital broadcasting (whether or not there is simulcast). The CPU produces, when analog broadcasting in simulcast is being received, a message that the same program is being broadcast in digital broadcasting by an OSD circuit and displays the produced message on a screen (a CRT).

Abstract: A video output device adds a blank on both left and right sides or both upper and lower sides of an input video to produce a video having the same aspect ratio as that of the display screen of the display device, when an aspect ratio of the input video and an aspect ratio of a display device for displaying the video are different. At this time, the brightness of the blank to be added to the input video is adjusted in accordance with the brightness near the boundary between the input video and the blank to suppress a difference in brightness near the boundary.

Abstract: A technique is used for determining a video format for a video output signal generated by a television receiver. The technique includes acquiring a preferred output format that is one of a plurality of video formats and determining an aspect ratio of a selected television signal having one of a plurality of television signal formats. The video output signal is generated using one of the plurality of video formats having a 4:3 aspect ratio when the selected television signal has a television signal format having a 4:3 aspect ratio and the preferred output format is other than one that has only a 4:3 aspect ratio. A related technique additionally acquires an optional override output format for television signals having an aspect ratio of 4:3 that is used to determine when to use the stated the stated video format to generate the video output signal.

Abstract: A system for overlaying a motion video signal onto an analog signal on a display. The system includes a motion video processing unit for receiving and processing the motion video signal into a signal having an analog video format, a video format analyzer and synchronizer device for receiving the analog signal and for determining video timing parameters and a corresponding original pixel clock of the analog signal and for controlling video timing parameters of the motion video signal to match the video timing parameters of the analog signal determined by the video format analyzer and synchronizer device so as to provide an output motion video signal which is synchronized with the analog signal and a display determining device for determining the display of the analog output signal or the synchronized output motion video signal on the display.

Abstract: A television including a CS digital circuit to receive a CS digital television broadcast signal. A micom circuit detects a broadcast mode of the digital television broadcast. Where the broadcast mode is in a first mode, or usual broadcast mode, the power supply to a video output section and audio output section, for example, is turned on to output video images and sound respectively through a CRT and a speaker. Also, where the broadcast mode is in a second mode, or radio broadcast mode, the power supply to the video output section is turned off. Where the broadcast mode is in a third mode, or data broadcast mode, the power supply to both the image output section and the audio output section is turned off.

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: 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: In a method and apparatus for displaying resized pictures on an interlaced target display system, the contents of an input video source are initially read and decoded to obtain original input picture data and title format information that indicates scan format of the original input picture data. According to the scan format of the original picture data and the identified television system specification of the interlaced target display system, a resizing operation is then performed to resize the original input picture data and obtain resized frames having a frame size sufficient for division into even and odd fields with field size characteristics that comply with the television system specification of the interlaced target display system.

Abstract: The present invention is generally directed to automated methods and systems for converting image streams having a first frame rate to a second frame rate without the need for user intervention. Embodiments of the present invention obviate the effects of processing of a telecine process. In one embodiment, where frames are encoded by a single video field, a statistical analysis of the differences between adjacent frames reveals a telecine pattern, thereby identifying which frames to remove. In another embodiment, where frames are encoded by even and odd video fields, which are interleaved to produce the frame, a statistical analysis of the differences between adjacent fields reveals the telecine pattern, identifies which frames to remove, and identifies frames that are candidates for re-interleaving.

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: When an image having an aspect ratio of 16:9 is compressed in a vertical direction to be displayed on a display screen having an aspect ratio of 4:3, a gray scale signal is inserted into a top and a bottom of an image signal and a brightness level of the inserted gray scale signal is made to correspond to an average brightness level of the image signal. In addition, when an image having an aspect ratio of 4:3 is compressed in a horizontal direction to be displayed on a display screen having an aspect ratio of 16:9, a gray scale signal is inserted into a right edge and a left edge of an image signal and a brightness level of the inserted gray scale signal is made to correspond to an average brightness level of the image signal. Accordingly, a boundary line between a video image area and a non-video image area due to the difference in luminous characteristics of phosphors becomes hardly recognizable.

Abstract: The adaptive timing module is configured for recovering data encoded in a field of a video signal, and further configured for counteracting horizontal phase or picture shift. An adaptive timing processor defines a timing window where the expected prescan portion video signal is expected to be in an encoded video signal. The timing window is divided into sub-portions with a set of sampling points. The adaptive timing processor conducts a sweeping operation over each sub-portion of the prescan portion of the encoded video signal for the presence of a pre-data encoding zone. When a pre-data encoding zone is detected, the adaptive timing processor stores the position of the sub-portion with the pre-data encoding zone, or sets a flag to indicate the presence of a pre-data encoding zone for that particular sub-portion in a particular field.

Abstract: A transport stream TSd generated from a digital broadcast signal and a transport stream TSa generated from an analog broadcast signal are recorded simultaneously and a portion of TSd wherein the reception state of the digital broadcast is bad is replaced with TSa corresponding to the defective portion for compensation. A composite TS consisting of good TSd and TSa corresponding to defective TSd 102 is formed and recorded.

Abstract: An equalizer and an equalization method usable in a high definition television (HDTV) are provided. The equalizer may receive an input signal including a data signal and a training sequence and may compensate for distortion of the input signal in a high definition television. The equalizer may include an input signal reuse unit, a filter unit, and an error calculation unit. The error calculation unit may receive an equalizer output signal, may estimate the equalizer output signal at an estimate value, may generate the estimate value as a decision value, and may output a difference between the equalizer output signal and the decision value as the error signal.

Abstract: A data processing method and an apparatus thereof, which process EIA-775 OSD graphic data received from the outside based on IEEE 1394 standards by using a combined software/hardware method. The data processing apparatus using a combined software/hardware method includes a first data processor, in response to an interrupt control signal, for analyzing predetermined data among graphic data received from the outside based on IEEE 1394 standards and processing the same to output control data, a second data processor for outputting an interrupt control signal to process the predetermined data when the graphic data is received from the outside based on IEEE 1394 standards, and for calculating a destination address and the size of graphic data excluding the predetermined data to be output according to the control data, and a graphic processor for mixing video data with the graphic data, of which the destination address and the size are calculated.