Abstract: The method and apparatus identifies selected broadcast segments, such as commercial advertisements, of a television signal in real-time for the purpose of muting the video and audio portions of the television signal during each unwanted segment. A signature pattern associated with each segment of the television signal is detected and compared to stored signature patterns representative of selected segments such as commercial advertisement segments. If the signature pattern matches one of the stored signature patterns, the segment is thereby immediately identified as being one of the selected segments and is processed in real-time to mute the audio and video portions of the television signal during the segment. If the signature pattern of the segment does not match any of the stored signature patterns, the segment is analyzed to determine whether the segment is nevertheless a selected segment and, if so, its signature pattern is stored along with the stored signature patterns.

Abstract: A sequential color display system (10) suited to receive data (20) at different rates without discarding or filtering video data. The mismatch of bandwidths between the input source video data and the output sequential color display is accommodated by retaining a modified synchronous operation. A color wheel (50) having a plurality of segments is utilized whereby the input frame rate in reference to the color wheel rate is always a ratio of integers. Using a digital micromirror device (44) spatial light modulator, no mixing of frame-to-frame bit planes is required during a colored segment. In the preferred embodiment, the ratio of integers is 7-to-6 for a 50 hertz input, such as a PAL system, or a 5-to-6 ratio for a 72 hertz input. The color wheel is maintained at about a 60 hertz rate.

Abstract: An apparatus for composing two screens in a television which is capable of solving the problems of a jitter and a screen being cut off at the top and bottom portions caused by a non reference signal in composing two screens, includes a line memory for storing in the unit of lines a video signal for a main screen converted into a digital signal, a frame memory for storing in the unit of frames a video signal for a sub-screen converted into a digital signal, a mixing unit for receiving and mixing the outputs from the line memory and the frame memory to compose two screens, a D/A converter for converting an output from the mixing unit into an analog signal, an encoder for encoding an output from the D/A converter and outputting a double screen signal, a clock signal generator for receiving the horizontal synchronous signals for a main screen and a sub-screen, generating a clock signal corresponding thereto, dividing a horizontal fly back signal in a predetermined number in accordance with a division control sign

Abstract: A video display is provided which includes a display screen mounted to a forward end of the video display, a video projector having a center of gravity, and a reflective assembly for directing light from within the video projector to the display screen. The video display further includes a frame for supporting the display screen, the video projector and a reflective assembly in an operative relationship. Stationary brackets are rigidly mounted to the frame, and projector brackets are rigidly mounted to the video projector. The projector brackets are pivotally mounted to the stationary brackets for rotating relative to the stationary brackets, about a pivot point. Rotating the projector brackets relative to the stationary brackets rotates the video projector relative to the frame, from a first position to a second position.

Abstract: An improved high-performance vertical sync separator which can reliably operate during high frequency and non-standard video signal conditions and that utilizes a device-independent methodology. The synch separator includes a signal separator circuit having an input port for receiving a composite signal. A measuring device connected to the input port measures a first and second characteristic of the composite signal. A processor receives and compares the first and second characteristics, and recovers a vertical sync signal from the composite signal.

Abstract: A process for converting interlaced frames into progressive frames comprising a change of frame frequency by interpolation and motion compensation, wherein when a motion vector associated with a pixel to be interpolated is non-zero or when the motion vector is zero but the confidence accorded to this vector is less than a given threshold, the interpolation of the pixel of a frame situated temporally between two input frames is carried out by a median filtering pertaining to the values obtained by a first motion compensated linear temporal filter, a second motion compensated linear filter, and a motion compensated median temporal filter.

Abstract: A closed-caption scrolling method and apparatus suitable for displaying a closed caption including syllable characters and capable of reducing the memory capacity. According to the method, the caption signal is encoded in a line of each field of a broadcasting television signal which does not affect the broadcasting signal, and then transmitted to be displayed on a screen of a receiver. A control code for controlling the size of a scroll region and the scrolling direction is produced, so that character information following the control code is displayed on the predetermined scroll region, being scrolled in a predetermined direction, by the control code.

Abstract: A receiving process is realized with a simple configuration when a plurality of sources such as in the television broadcasting or the like are transmitted efficiently at the same time. A plurality of transmission bands are prepared each including a predetermined number of subcarriers arranged at a predetermined frequency interval. The signal of each transmission band is delimited at a predetermined time interval to form a time slot. For transmitting a plurality of data A to P, after individual data are transmitted during a predetermined time slot period using a predetermined transmission band, the transmission band is switched to the separate transmission band and the particular individual data is transmitted during a predetermined time slot period. The receiving band is switched at the receiving side in an interlinked relation with the switching of the transmission band for transmitting the desired data.

Abstract: An apparatus for controlling a display memory for storing decoded picture data is disclosed, that comprises a data dividing portion for dividing decoded picture data as one macroblock in a vertical direction, a write address generator for generating the binary value of a write address necessary for writing the divided picture data to the display memory, a slice counter for counting the number of slice lines of picture data that has been written to the display memory, a rotate-shifter for rotating and shifting the binary value of the generated write address to the left by a first bit number corresponding to the number of slice lines counted, a means for writing the divided picture data to the display memory corresponding to the write address that has been rotated and shifted, a read address generator for generating the binary value of a read address necessary to read picture data from the display memory, a rotate-shifter for rotating and shifting the binary value of the generated read address to the left by a

Abstract: A baseline display system (10) is capable of receiving different types of input signals, analog or digital, having different horizontal and vertical input resolutions. The system uses serial video processors (SVPs) (33, 34, 43, 83) that have a given input size and spatial light modulators (SLMs) (18) that have a given output (display) resolution- The baseline system (10) is configurable to meet bandwidth requirements for displaying real time images on SLMs of increasing resolution. Data is decimated (downscaled) when appropriate to fit the SVP input size (FIGS. 4 and 8) and upscaled, vertically or horizontally, when appropriate to fit the SLM display resolution (FIGS. 3, 4, 7, and 8). Four systems (20, 50, 60, 90) , each appropriate for a different SLM resolution are described.

Abstract: In a red-eye detection/retouch apparatus, a first area extraction unit receives an image including a red eye and a signal representing a small area including the red eye and designated by a user and extracts a first area including the red eye. A first pixel selection unit detects the reddest pixel from the first area and outputs coordinate values and color information of the pixel. A determination unit determines whether the other red eye is present on the basis of the signal representing the small area and the coordinate values of the reddest pixel. The determination unit outputs an instruction signal for extracting a second area where the other red eye is present upon determining that the other red eye is present. A second area extraction unit receives the instruction signal and extracts the second area from the first area. A second pixel selection unit detects the reddest pixel from the second area and outputs coordinate values and color information of the pixel.

Abstract: A luminance/chrominance (Y/C) signal separating device utilizing motion estimation and compensation. According to the device, the image motion is detected in the unit of a 2.times.2 (sample.times.line) block to separate an NTSC television signal into the Y and C signals. As a result of the motion detection, a three-dimensional Y/C signal separation is performed with respect to a still image, while a three-dimensional Y/C signal separation with the motion estimation and compensation in the unit of the 2.times.2 (sample.times.line) block in a predetermined region of the previous frame is performed with respect to a moving image. A two-dimensional Y/C signal separation is performed with respect to the moving image whose motion is not compensated in the unit of a 2.times.1 (sample.times.line) block in the present frame.

Abstract: The transmitting device latches the time of the absolute clock when the V-sync signal of the video signal block is transmitted, adds to the latched time a predetermined delay time equivalent to the sum of the time required for the transmitting device to process the video signal block and the time required for the transmittance; and transmits the resulting sum value together with the video signal block. The receiver extracts the sum value and produces the V-sync signal delayed by said predetermined delay time.

Abstract: A picture-display-region discriminating apparatus comprising a device for setting a number of picture detection regions on a display screen of a television receiver, a detecting device for detecting a level of a video signal corresponding to each picture detection region by utilizing two reference levels, and a device for determining whether or not a picture exists in each picture detection region based on detection results from the detecting device. One of the reference levels utilized by the detecting device is a black level of a luminance signal of the video signal and the other reference level utilized therewith is a white level of the luminance signal of the video signal.

Abstract: A dual screen displaying device for displaying two NTSC video signals on the left and right sides of a monitor is disclosed. The displaying device comprises two tuners for receiving wireless signals from an antenna and generating two video signals V1 and V2, two digitizing circuits for digitizing the video signals V1 and V2, a control circuit for merging the outputs of the two digitizing circuits, a digital-to-analog converter for converting the merged digitized signals back to a combined video signal, and a display control circuit for displaying the combined video signal. Asynchronous condition may happen when displaying different fields of the two video signals V1 and V2 in the same time. And the control circuit uses a storage method which controls the storage of a specific field of the video signal V2 or a data retrieval method which controls the retrieval of a specific field of the video signal V2 to solve the asynchronous problem.

Abstract: A television receiver (a signal processing apparatus) equipped with a microprocessor unit, wherein a high speed processing, such as video decoding, is performed by a programmable operation circuit, and a low speed processing, such as control processing, synchronous processing, or deflection processing, is performed by the microprocessor unit.

Abstract: An image processing method and photobooth employing the method are disclosed which produce a composite image using a conventional chroma-key device. The subject in the photobooth is illuminated with low temperature light and is filmed before a backdrop of uniform saturated blue color to provide a foreground image to the chroma-key device. The chroma-key device compares the intensity of the blue color component for each pixel of the foreground image to a threshold intensity level and replaces those pixels of the foreground image that have a blue color component intensity greater than the threshold with a corresponding pixel of a pre-stored background image thereby producing a composite image. By illuminating the subject with low temperature light, the method decreases the intensity of most blue color components in the light reflected from the subject to a level below the threshold level used by the chroma-key device.

Abstract: A method of controlling the display period of video data, and system thereof, that matches the frame period of displayed video data to the speed of a color wheel. The period of the color wheel is measured to determine the display period. An optimum frame sequence pattern is selected, based on the display period, to minimize the artifacts created in the displayed image while maximizing the portion of the frame period used to display the image data. The display period for each segment of the frame sequence pattern is scaled to fit the period of the color wheel, and each bit of the image data is loaded into the spatial light modulator and displayed at the proper time.

Abstract: Radio receivers for receiving DTV signals, in accordance with the Advanced Television Systems Committee (ATSC) standard, or analog TV, in accordance with the National Television Sub-Committee (NTSC) standard, each use a single first detector for both types of signal. This single first detector supplies its output signals to an intermediate-frequency amplifier chain for TV signals and to another intermediate-frequency amplifier chain for analog TV signals. The response of the IF amplifier chain for DTV signals is synchrodyned to baseband, supplied to symbol decoding circuitry, and used by first automatic gain control circuitry to develop AGC for amplifier stages in that IF amplifier chain when DTV signals are received.

Abstract: A television viewer can easily navigate programs which are grouped according to a common service provider or other grouping criteria by depressing the "channel up" or "channel down" buttons on a hand-held remote control. Programming services which are provided via one or more transmission paths are integrated, thereby allowing a viewer to successively select the grouped channels regardless of the broadcast signal, transmission path, frequency spectrum, transport stream and/or PID in which the channel is carried. Data is provided with broadcast signals to indicate broadcast address information which corresponds to a primary channel and one or more secondary channels of a channel group. A viewer can successively view the channels of the group while bypassing intermediate non-group channels. Grouped channels can thus be designated by a common channel designator such as a channel number.