Abstract: Methods and systems for adjusting color-saturation contrast of the video signal. Statistical information based on chrominance or luminance measures is analyzed to derive a gain function. The gain function is also determined according to the detection result of an exceptional situation during statistical analysis. The gain function is applied to the video signal to modify the amplitude of the chrominance signal.

Abstract: Fuzzy logic based system and method for 3:2 pull-down film mode detection that detects whether a stream of NTSC video fields originate from film source via 3:2 pull-down technique. Fuzzy logic is used to generate a reference sequence of symbols from the stream of NTSC video fields. This reference sequence is adapted for indicating whether or not the video fields originate from film source.

Abstract: An audio/video playback control system of liquid crystal display television (LCD TV) is provided to control an audio signal system, an image display system and a backlight source system of an LCD TV, and the control system uses an audio/video control unit to maintain an activated status in normal conditions, and the audio/video control unit receives a signal transmitted from an external control interface to determine whether or not to output an activate signal to activate the audio processing unit or activate the video processing unit and the backlight source system, or jointly activate the audio processing unit, the video processing unit and backlight source system, so as to achieve the digital control of the LCD TV and the power-saving purpose.

Abstract: A system and method that convert a video source from a first rate to a second rate. The system may have as an input a video that may be frame-based or field-based at a first rate, and convert the input video to an output video that may be frame-based or field-based at a second rate. The first rate may be 50 Hz and the second rate may be 60 Hz. Converting from the first rate to the second rate may comprise repeating frames or fields. For example, when converting from a frame-based 50 Hz input video to a frame-based 60 Hz output video, the output video comprises frames where every sixth frame is a repeated version of the preceding frame.

Abstract: A video processing method utilized in a video data processing device for processing video data is disclosed. The video data includes at least a first video data set, and the video data processing device has a memory and a video decoder. The method includes utilizing the video decoder to decode the video data for generating a display data set, driving the video decoder to select a specific video data set from the first video data set wherein the display data set does not have display data corresponding to the specific video data set, and utilizing the memory to store the display data.

Abstract: An apparatus including a one-field delay circuit 21 for delaying a luminance signal F0 of a video signal under judgment by an amount of one field; a subtractor circuit 22 for generating a difference signal FD0 indicating the difference between a luminance signal F1 and the luminance signal F0 for each field; an adder circuit 23; a one-field delay circuit 24; a one-field delay circuit 25 for delaying the difference signal FD0 by an amount of one field; and a comparison circuit 26 and a judgment circuit 27 for comparing the difference signals FD0 and FD1 and deciding if the luminance signal FD0 is a film video signal based on the result of the comparison.

Abstract: Video control signals are received at a video input port of a system. A determination is made whether the video control signals are valid or invalid. When video control signals represent a valid video signal, providing a delayed representation of a control signal to a synchronization input of a display engine of the system, and when the video control signals represent an invalid video signal, providing a an alternative signal to the synchronization input of the display engine.

Abstract: A method and apparatus are provided for displaying progressive material on an interlaced display where the number of lines of the source frame is equal to or less than the number of lines in a display field, where such lines in the display field are derived from all of the lines of the source frame.

Abstract: A method, an apparatus, and a carrier medium carrying code to implement the method. The method includes accepting blindly video samples of at least one video signal representing lines of video. At least one of the video signals includes horizontal synchronization pulses at a sync tip level. The video samples are formed by blindly sampling the least one video signal in a manner unsynchronized with the video signal or any synchronization signal related to the video signal. The method further includes storing the accepted video samples in a memory that store at least one video line of samples, and analyzing sets of the accepted video samples that include at least one video line to determine video characteristics of the video signal.

Abstract: A system is presented that applies M×N×K computational units to calculating image parameters on N picture images captured simultaneously by N digital camera devices, where there are N groups of frame grabber units, each containing M frame grabbers in which there are K computational units. The data operated on by a computational unit is separate and independent from the image data operated on by the other computational units. This results in a performance speedup of M×N×K compared to one computational unit making the same computations. A master frame grabber unit controls the illumination of the N digital camera devices, and synchronizes the illumination with the clocks of the N digital camera devices.

Abstract: Disclosed is a television tuner for receiving television broadcast signals with a smart antenna, which is equipped with an auto-scan unit that causes a channel storing section to automatically stores a receiving channel and the corresponding receiving direction at the time when the signal condition from a tuner section matches the predetermined signal condition matches the predetermined signal condition. The auto-scan unit causes a directivity control section to perform a variable directivity control for every direction and to detect the signal condition for each direction, and switches the receiving channel in the tuner section when a receiving direction is stored. This improves the convenience in adjusting the antenna directivity for each receiving channel.

Abstract: An integrated digital BTSC encoder is implemented on a single CMOS integrated circuit chip with an all digital RF modulator. A set top box is provided that allows for a fully integrated solution which may be used with legacy television systems and also with other audio/visual equipment connected to the set top box.

Abstract: When transferring data from an external storage unit (101) to a video composition circuit, the transferred data and data stored in an internal storage unit (104) of the video composition circuit are subjected to vertical filtering using a video processing circuit (103). The video processing circuit (103) having a function of an OSD output unit, a function of a sub video output unit, and a function of a main video output unit. Additionally, the video processing circuit (103) having an ?-blending function, to write the data over the internal storage unit (104), thereby performing display.

Abstract: A remote control system which controls plural devices connected to a bus, and which includes: a set top box (2) that is operated by a controller (4); and a DVD player (1) that transmits, to the plural devices connected to the bus, a first command indicating that the DVD player (1) is currently outputting video. Upon receiving the first command, the set top box (2) transmits, to the DVD player (1) via the bus, a second command corresponding to an operating signal transmitted from the controller, and the DVD player (1) receives the second signal and executes a process corresponding to the second command.

Abstract: A picture of 625/50 format is converted to a picture of 525/60 format by a format converter provided halfway of the transmission link (1). By thinning scanning lines from the 625/50 format with a scanning line thinning means (2) on an input side of the transmission link (1) and then thinning fields from the format of 525/60 with a field (frame) thinning means (4) on an output side, the formats are matched with each other. After that, a picture quality characteristic amount is extracted by picture quality characteristic amount extracting portions (3), (5) and transmitted to a central monitoring room (6). A comparing means (7) of the central monitoring room (6) compares received picture quality characteristic amount so as to monitor a transmitted picture quality on a transmission link.

Abstract: The present invention relates to an information signal processor and the like preferable for use in the case of converting a format of an image signal or converting an image size. An input image signal Vin (525i signal) is converted into an output image signal Vout (such as 1080i signal, XGA signal, or 525i signal for obtaining an image to be displayed in a different magnification). A class code CL is obtained from tap data selectively extracted from the Vin and corresponding to each pixel (pixel at a target position) within a unit pixel block, which constitutes Vout. A coefficient production circuit 136 produces coefficient data for each class, which is used at the time of calculating the pixel data at the target position, based on the coefficient seed data for each class and position information h, v about the target position generated in a position information generation circuit 139.

Abstract: An audio-video (AV) signal transceiving processing device which includes a AV decoder, a bridge, and a bus interface, wherein the bus interface is a PCMCIA, CardBus, or Express Card bus interface. The AV decoder is used to receive an analog video signals and a corresponding analog audio signal, and output a first digital video signal and a corresponding first digital audio signal. The bridge is used to receive the first digital video signal and the first digital audio signal, and output a second digital video signal and a second digital audio signal, which are compliant to a bus interface standard, to a computer through a bus interface that is compliant to the bus interface standard.

Abstract: An image signal conversion apparatus for converting a SD signal (525i) into a HD signal (525p or the like). In the image signal conversion section, the SD signal is converted into the HD signal, and the image is displayed on the display section. A class code CL indicating a class of a subject pixel of the HD signal is obtained by detecting a space class and a motion class from tap pixel data corresponding to the subject pixel of HD signal which is selectively fetched from a SD signal. The controller loads coefficient data of each class according to the selected resolution into the coefficient memory from the information memory bank when the user selects the resolution. In the calculation circuit pixel data of the subject pixel of the HD signal is calculated using an estimating equation based on the tap data xi corresponding to the subject pixel of the HD signal selectively fetched from the SD signal in the tap selection circuit and the coefficient data read in class code CL from the coefficient memory.

Abstract: A broadcast receiving apparatus includes an NIM having a digital terrestrial wave processing unit for processing a received broadcast signal as required for digital terrestrial broadcast and a digital cable processing unit for processing a received broadcast signal as required for digital cable broadcast, and a signal acquisition determining circuit for determining whether a received broadcast signal is for digital terrestrial broadcast or digital cable broadcast, based on waveform characteristic of the received broadcast signal. A CPU causes selected one of the digital terrestrial processing unit and the digital cable processing unit of the NIM to execute the signal processing, based on acquisition result information of the signal acquisition determining circuit.

Abstract: A display apparatus for video signals has improved operability. The display apparatus includes a tuner which receives a video signal, an external input unit into which a video signal is input from the outside, a display processor operable to select one of the video signal received by the tuner or that obtained from the external input unit as a main video and to perform display processing on the main video, a display unit operable to display the video signals processed in the display processor, an operation unit and a controller operable to combine an operation guidance video with the main video to form a combined display based on a predetermined operation in the operation unit, and to display the combined display, wherein the combined display is displayed in different display modes depending on which video signal forms the main video. The operation unit may be in the form of a touch panel. Furthermore, when a specific button is operated, a display to select a function is performed.