Abstract: Video image information is received in a signal including conditional access information. The conditional access information is associated with one of a plurality of picture resolution formats for recording, reproducing and displaying the video image information. The conditional access information in the received signal is decoded. A format for at least one of recording, reproducing and displaying the video image information is adaptively selected in response to the decoded conditional access information. The video image information is then processed using the selected format. The conditional access information may further include information indicating a predetermined time period during which reproduction of recorded video image information is permitted.

Abstract: A user selects a predefined aspect ratio format of an image displayed on a display screen. When a change in an aspect ratio format of an incoming signal occurs, that would, otherwise, produce a distorted image, a format controller automatically overrides the user's predefined aspect ratio for establishing a different image aspect ratio. Thereby, the distortion of the image is prevented.

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 passband equalizer that performs blind equalization upon a complex signal, e.g., a vestigial sideband (VSB) signal, without using a training sequence. The passband equalizer contains a decision directed equalizer (DFE) that operates upon separate in phase (I) and quadrature phase (Q) signals using a filter for the I signal and a filter for the Q signal without using filters for cross components of the I and Q signals. As such, the DFE contains approximately half of the multipliers and adders that are used in prior art DFEs.

Abstract: The invention provides an image processing apparatus and method as well as a providing medium by which deterioration of the vertical resolution is prevented and conspicuous appearance of line flickering is suppressed. In order to convert an interlaced video signal having 525 scanning lines into another progressive video signal having 525 scanning lines while maintaining the image size, in an odd-numbered field, a line after conversion is offset by 0.5 H (H is the distance between horizontal scanning lines of the inputted video signal). Consequently, pixel data of each line Oi are produced from pixel data of two lines Ii and Ii+1 before conversion. As a result, pixels of a line on the boundary between white pixels and black pixels have a gray color. In an odd-numbered field, no offset is given, and pixel data of each line I1 of the field before conversion are set as they are as pixel data of each line Oi of the field after conversion.

Abstract: A method and apparatus for processing video data in which a decoder receives video data and decodes the video data into fields based on content format. The decoder generates a flag associated with the content format, which is used to control how the fields are stored and retrieved from memory for display on a display device.

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 data structure of an image signal includes a reproduction cycle identifier indicating whether the cycle of image display for each frame is variable or not. When the display cycle identifier indicates that the display cycle is fixed, display cycle data is inserted in a header of the coded image data, and data relating to the frame number is inserted in each frame. On the other hand, when the display cycle identifier indicates that the display cycle is variable, display time data is inserted for each frame. Therefore, when decoding and displaying the coded image data having a fixed display cycle, the decoded image data can be displayed by a simple circuit structure, i.e., based on the display cycle data and the frame number data having a relatively small data quantity (bit number), without referring to the display time data having a relatively large data quantity for each frame. Furthermore, this data structure can be applied to a coded image signal having a variable display cycle.

Abstract: One of an output picture signal with a field double speed of AABB type and an output picture signal with a field double speed of ABAB type is selectively generated with selection signals SL1 and SL2. In the AABB type, among first, second, third, and fourth output fields, the vertical pixel position of the second output field is the same as the vertical pixel position of the first output field. In addition, the vertical pixel position of the fourth output field is the same as the vertical pixel position of the third output field. In the ABAB type, among first, second, third, and fourth output fields that are chronologically successive, the vertical pixel position of the second output field deviates from the vertical pixel position of the first output field. In addition, the vertical pixel position of the third output field deviates from the vertical pixel position of the second output field.

Abstract: Device and method for converting a format of a video signal in a digital TV receiver is provided. Format conversion can be carried out at one chip of a format converting device, inclusive of resolution, frame rate, scanning method, aspect ratio, color space, chroma format, and gamma correction. Therefore, the digital TV receiver is made to convert a wide range of video signals inclusive of, not only a digital TV broadcasting signal, but also analog TV broadcasting signal, and computer video signal, at one chip of system block. Moreover, the digital TV receiver is made to provide a variety of standards of format converted video signals, not only to own display, but also other general video signal processing devices.

Abstract: A television (TV) includes a circuit board (PCB) into which a digital video interface (DVI) receiver integrated circuit (IC) may optionally be mounted, and also includes other video sources. The TV includes a processor or controller which controls its operation, and also includes an analog switch coupled to the analog sources and to the PCB at the receiver, for switching among video sources. A scan port of the IC is coupled by way of a resistor to a general purpose I/O (GPIO) port of the switch, for indicating the presence of DVI video. The resistor has a value which places a logic low at the GPIO port when the optional receiver is present, and to allow the GPIO port to be pulled high when it is absent. A controller determines the presence or absence of the optional DVI IC by examining the logic state of the GPIO port.

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: A digital broadcasting transmitting method wherein a transport stream is created and transmitted in a digital broadcasting system in which the transport stream in which plural packets comprising video data packets of digitized video and service information packets of information about broadcasting using the video have been multiplexed, is transmitted over a network, comprises: creating and transmitting the transport stream in which the service information includes scanning method information as information about a scanning method of digitizing the video.

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: An image display apparatus is provided that can easily confirm whether an image signal is suitable to the setting of an image display unit. The image display apparatus may include an image input unit, where image signals are input, an image display unit forming an optical image on the basis of the input image signals, a signal information detector for detecting signal information of the input image signals according to an input system of the image input unit, and a signal information output unit for outputting signal information detected by this signal information detector. Since the image display apparatus includes the signal information detector and the signal information output unit, it is possible to easily confirm whether the input image signals are suitable to the setting of the image display unit.

Abstract: An image display device includes a display panel having predetermined numbers of pixels defined in horizontal and vertical directions, respectively, and an interpolated-data generation circuit whereby an expanded image data is produced in such a manner that when the number of pixels in the horizontal direction of the display panel is greater than the number of pixels in the horizontal direction of a given image signal, the interpolated-data generation circuit directly stores a plurality of image data A, B, C, D, E of the original image signal along one horizontal line at data storage locations closest to the original locations, and data at data storage locations remaining after storing all original data are given the results X, Y, and Z obtained by calculation from two original image data at locations adjacent to the respective remaining data storage locations thereby expanding the original image signal to have a resolution well matched to the resolution of the display panel without causing a reduction in con

Abstract: Designed for use with widescreen TVs or high-end TVs with a mode for accommodating anamorphic programs, an EPG client is equipped with an electronic program guide (EPG) and a letterbox-to-anamorphic converter. The EPG client evaluates EPG data to determine whether programs are in the letterbox format. When a letterboxed program is selected for viewing, the EPG client vertically stretches the program by a ratio of M/N, where M>N (e.g., 4/3), to convert the program from the letterbox format to an anamorphic format prior to delivery to the television. The converted anamorphic program is output to the television, where it is horizontally expanded to fit the screen.

Abstract: A method and system for notifying a viewer of the arrival or presence of one or more video input signals in a video display system, such as a personal computer (PC) or television (TV) system. If a video signal is already present, the system may optionally notify a viewer of the termination or absence of the video signal. The invention further provides the viewer with the opportunity to dynamically select the video source to view. Upon sensing the presence of a new video signal, the system alerts the viewer who may then select whether to view the new video signal or maintain prior viewing status.

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 NTS

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: In a regulation of a total image quality for an encoded picture, parameter conversion data which define applicable coding bit rates and coding frame rates for each image format are previously stored in a storage 13. An image quality regulating parameter is input through a parameter input section 11 and is used as a key in an image quality regulator 12 to make a reference to the parameter conversion data in the storage 13 in order to determine a coding frame rate and an image format. By delivering the coding frame rate and the image format to picture encoding means, a regulation of a total image quality is achieved through a single operation without independently operating two parameters, the image format and the frame rate.

Abstract: A progressive video frame is detected in a sequence of video fields, wherein the sequence of video fields includes a target video field. Detection includes generating one or more metrics by comparing the target video field with an immediately preceding and/or immediately succeeding video field. The metrics are compared with one or more threshold values. The immediately preceding and/or immediately succeeding video field is determined to have been derived from a same progressive video frame as the target video field if the one or more metrics are less than their respective threshold values. The metrics in this case may be indicative of a quantity of interlace artifacts. Alternatively, metrics indicative of an amount of represented motion may be derived by comparing a target video field with each of an immediately preceding and immediately succeeding video field.

Abstract: A high definition display unit which demodulates, decodes, and processes in relation to chroma and displays a television signal in which a PI (picture) signal and an SI (service information) signal are mixed. A changeover switch 13 connected to an image quality adjusting circuit in a video chroma processing circuit 7 is opened or closed according to an on-off signal SI showing the superposed period of both signals detected by a decoder 4. If the above on-off signal SI is on, the changeover switch 13 is opened and the adjustment of image quality is disabled. Therefore, SI display never disappears due to the adjustment of image quality, and the quality of an image can be also adjusted according to an ambient status. Other approaches are also disclosed from preventing image quality adjustment of at least portions of a displayed image containing an information image.

Abstract: A broadcasting system including a transmitter operative to transmit a signal in a first transmission format, a receiver operative to receive the signal, a reformatter operative to reformat the received signal into a second transmission format, and a set-top box (STB) operative to decode the second-transmission-formatted signal.

Abstract: An image signal processing apparatus and method is capable of variably performing format conversion and image quality improvement according to a kind of an inputted image signal. A detecting section detects a kind of image signal inputted from an external device. A control section controls the format of the image signal to be converted by selecting the format converting coefficient from the first storing section in accordance with the kind of the image signal. A format converting section converts a format of the inputted video signal by the selected format converting coefficient. The control section selects an image quality improving converting coefficient corresponding to the video signal from the second storing section. The image quality improving section improves a quality of the video signal converted by the selected image quality improving converting coefficient.

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: An apparatus for electronic format and frame rate conversion in a multiple format video processing system adapted to avoid display motion artifacts causes by 3:2 conversion of 24 Hz video source video by tripling the frame rate of the source video and responsively adjusting the format of the resultant video signal.

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: In order that such a signal as is conventionally determined to be a standard signal in the unit of one field and determined to be a non-standard signal in the unit of a plurality of fields can be determined to be a non-standard signal, the following are provided: a clock generating circuit for generating a clock of a frequency being a constant multiple of the color carrier frequency; a register for setting the clock count of one field section of a standard signal; a vertical counter for counting the number of clocks generated by the clock generating circuit, and being reset when the clock count reaches the value of the register; and a flip-flop receiving the counter output as the input and using an external vertical synchronizing signal as a load hold pulse.

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: A television receiver, in which if a tuner can receive a signal of the television broadcast form of either television wave broadcasting or CATV broadcasting, a microcomputer executes channel preset processing so that signals of television wave broadcasting can also be received although the processing is predicated on CATV broadcasting, then determines signals of which television broadcast form can be received. If the microcomputer determines that the signals of the television wave broadcasting can be received, it makes a reference to the memory positions of the preset contents. To cause the tuner to receive a station-existing channel, the microcomputer matches the target memory position with the channel of television wave broadcasting for receiving the channel.

Abstract: An inverse telecine converting device and method converts quasi-television motion picture information back to original cinema motion picture information, wherein the quasi-television motion picture information had been obtained by quasi-converting the original cinema motion picture information.

Abstract: A device and a method for automatically discriminating formats of video signals input to a monitor and processing the respective signals in accordance with the identified formats are provided. The device automatically identifies whether signals input to the same input port are RGB type PC signals or YPbPr type HDTV signals and processes the signals in accordance with the identified formats. Therefore, users have only to install a single input port commonly used to receive PC signals and HDTV signals rather than installing separate input ports for separately receiving PC signals and HDTV signals.

Abstract: Whether or not an input video signal is an video signal telecine-converted is decided on the basis of correlation values between an interpolated field and fields located one-field-period before and after the interpolated field. Where the interpolated field is an editing point field of a film frame of one field, adaptive interpolating processing is executed instead of film interpolating processing.

Abstract: A binarizer binarizes a video signal VD1 inputted from an A/D converter and a video signal VD2 outputted from a line memory using an average luminance value LU fed from a detection window video signal processor as a threshold value, to output a binary pattern BI. A reference pattern generator generates a plurality of reference patterns RA. A first pattern matching angle detector compares the binary pattern BI with each of the plurality of reference patterns RA, to output the angle of the reference pattern RA which matches with the binary pattern BI as angle information PA. A detected isolation point remover 4 outputs angle signal AN when the angle information PA has continuity.

Abstract: Device and method for processing a signal to a display, the device including a horizontal synchronizing signal detecting part for detecting a horizontal synchronizing signal from a picture signal, and a mode determining part for determining a mode of the picture signal by using a cyclic period of the horizontal synchronizing signal.

Abstract: An apparatus for discriminating a color format comprises signal processing paths, a direct signal path, a relay device, a detection device, a discrimination device and a control device. The signal processing paths separate a luminance signal and a color signal form 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 inputted to any one of the respective signal processing paths and the direct signal path. The detection device detects variation of the color format 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 inputted through the direct signal path.

Abstract: Disclosed is an image display method and apparatus capable of displaying best quality images even when image signals with a variety of aspect ratios are inputted. The image display method includes restoring a picture frame from a video data stream, detecting an aspect ratio of the picture frame, checking if the aspect ratio of the picture frame is matched with a predetermined aspect ratio of a digital TV receiver, adjusting a vertical size or a horizontal size of the picture frame if the aspect ratio of the picture frame and the predetermined aspect ratio of the digital TV receiver are different from each other, and format-converting the picture frame having the adjusted vertical size or horizontal size in accordance with a selected output format to output the format-converted the picture frame.

Abstract: In an overlapped field detecting apparatus, a delay unit delays a video signal, and a subtracter calculates a difference between the video signal and an output signal of the delay unit on a pixel-by-pixel basis. Also, an absolute value circuit calculates an absolute value of the difference on a pixel-by-pixel basis. Further, at least one comparator compares the absolute value of the difference with a threshold value on a pixel-by-pixel basis, and at least one accumulator counts a number of pixels when the absolute value of the difference is larger than the threshold value. A determination unit determines whether or not the number of pixels is larger than a definite value, thus determining that corresponding fields of two successive frames of the video signal are non-overlapped.

Abstract: A system for minimizing screen burn on a display screen caused by the display of video images that do not occupy the entire area of the display screen includes video image processing circuitry for formatting a received video signal to display an active image of the video signal on a portion of the display screen, and for displaying a screen saver on portions of the display screen that are not occupied by the formatted active image. A screen saver library provides a screen saver from a plurality of screen savers. Each screen saver in the plurality of screen savers occupies portions of the display screen that are not occupied by an active image.

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.

Abstract: The combined TV receiver can receive and process an analog broadcasting signal as well as a digital broadcasting signal, and includes a controller determining whether a channel selected by a user is a digital broadcast or an analog broadcast. The controller generates station selection data on the selected channel and a control signal pertinent to the determination. A tuner receives the station selection data and tunes to a broadcasting signal associated with the selected channel, out of signals received through an antenna. A switch unit forwards the broadcasting signal tuned at the tuner, in response to the control signal, to either an analog broadcasting processor or a digital broadcasting processor. An AGC (auto-gain controller) receives a gain signal either from the analog broadcasting processor or from the digital broadcasting processor, and adjusts a signal gain of the broadcasting signal tuned at the tuner, thereby allowing reception of both analog and digital signals.

Abstract: A method and system for detecting a VSB mode in a digital TV receiver is disclosed. The system includes first and second VSB mode detectors implemented before and after a channel equalizer. The first VSB mode detector detects a VSB mode from a signal before channel-equalization, the second VSB mode detector detects a VSB mode from a channel-equalized signal, and one of the detected VSB modes is output to the channel equalizer as the finally detected VSB mode.

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: A scanning line converting apparatus for converting the number of scanning lines of an output video signal into an arbitrary under of the scanning lines to form an output image signal. The scanning line converting apparatus includes a discriminator for discriminating an aspect ratio of a picture formed in accordance with a format of the input video signal and a display for displaying the discriminated aspect ratio. Since the discriminator discriminates the aspect ratio of the picture indicated by the input image signal and the display displays the discriminated aspect ratio, it is possible to adjust the monitor to display a picture of a proper aspect ratio based on the displayed aspect ratio.

Abstract: A method for parsing EIT parsing and providing program specific information of broadcasting programs at a rapid speed. The method includes the steps of: extracting the EITs from a program specific information signal sequence in a transport stream packet transmitted from a broadcasting station; parsing each the EIT in a prescribed priority order in the EITs; and displaying the parsed EIT on a TV screen. The method for parsing EIT according to the present invention can provide the information on the broadcasting program on the time period when an audience rating is highest to a viewer at a more rapid speed than the conventional EIT parsing method.

Abstract: An image signal processor is provided which accurately detects duplicate fields of a telecinema signal. The image signal processor includes a duplicate field detecting means for detecting duplicate fields of the telecinema signal and a duplicate field removing means for removing the duplicate fields. The duplicate field detecting means uses a threshold value for detecting a duplicate field and a threshold value for detecting a non-duplicate field to improve the accuracy of detection.

Abstract: A deinterlacing system which converts an interlaced video stream into a progressive video stream is disclosed. The deinterlacing system includes a field assembly responsive to a last field, a next field, a current field and progressive source phase and operative to develop a progressive output frame, a source detection module responsive to last, next and current fields and operative to develop a progressive source phase and a progressive source detected and an intra-frame deinterlacer responsive to the progressive output frame and the progressive source detected and operative to develop a progressive frame output.

Abstract: When there is an inability to convey motion that is occurring in the frames of a video source by a full-frame-rate transmission, a surrogate effect, other than another form of motion, may be used as a compensation technique to better convey motion to a viewer. The surrogate effect employed may be a) fading, b) wiping, c) dissolving, d) blurring, e) enhancing the contrast, f) enhancing one or more colors, g) enhancing the brightness, h) scaling the image, and i) the like. How the surrogate effect is applied to any frame may be a function of one or more video frames. Optionally, more than one effect may be used in combination. Advantageously, a more continuous sense of motion is perceived by a viewer. In one embodiment of the invention, full-frame-rate video is initially available. A controller monitors the ability to transmit or display full-frame-rate video.

Abstract: The object of the present invention is to provide a TV system discriminator capable of being applied to when the inputted TV signal is an analog signal or a digital signal, and capable of accurately discriminating between TV systems with small differences in line number and field number. In order to achieve the above object, the TV system discriminator of the present invention comprises a separator for extracting a synchronized signal for a TV signal inputted in accordance with one of a plurality of TV systems, a phase difference sensor for sensing a phase difference of this separated synchronized signal and a prescribed reference signal, and a phase difference displacement discriminator for discriminating a TV system corresponding to an inputted TV signal based on the direction of temporal displacement of this phase difference.