Abstract: The invention concerns a method for the recording and reproduction of stereoscopic video images of scenes being observed, as well as a device for carrying out the method. The method makes it easier to record or reproduce images using conventional recording media. A half-image detection procedure is carried out before and/or after recording takes place to determine the association of a half-image with the corresponding frames of a left-hand or right-hand channel, or the association with each other of two frames in parallel channels.

Abstract: A television signal receiving apparatus and method is provided having channel decode means for receiving a signal with a video signal, a sound signal, a data signal, and additional data multiplexed to perform tuning, demodulation, and error correction on the received signal and a demultiplexor for separating the multiplexed signal to output coded data of each of the video signal, the sound signal, and the data signal and for extracting service information as one of additional data. A storage device is provided for storing the service information extracted from the demultiplexor, together with a write controller for controlling writing into the storage device, and a read controller for controlling reading of the storage device according to a user command entered by a user. A source decoder is also provided for decoding the coded data outputted from the demultiplexor using the information outputted from said storage device to output the video signal, the sound signal, and the data signal.

Abstract: Use of a digital television as a remote display for a computer system is accomplished by capturing video data signals, compressing the captured video data signals, capturing audio output data signals, converting the captured audio output data signals and captured video data signals into broadcast digital television data packets, and transmitting the television data packets as television signals to the digital television.

Abstract: Detailed images of problem areas occurring in the surface of a structure, such as a multiple story building, are obtained by infrared and visual spectrum cameras positioned proximate to the problem area. A remote camera records a reference field of view that includes the local cameras and their operator, such that the area of interest may be positioned on the surface of the building. A helmet camera worn by the operator records the detailed images and transmits them to a base location.

Abstract: A method of reducing the memory required for decompression of a compressed frame by storing frames in a compressed format using DCT compression and decoders for implementing such a method are disclosed. The decoder is coupled to a memory where the frame can be stored. The decoder includes a decoder module having a parser, a block decoder module and a motion compensation engine. The decoder module is coupled to a DCT encoder module, which has an output coupled to the memory. The decoder also includes a stored DCT decoder module, which has an input coupled to the memory, a first output coupled to the motion compensation module and a second output that functions as an output of the decoder. In operation, any prediction frames needed for motion compensation decompression of the compressed frame are decompressed in the stored DCT decoder module. The compressed frame is decompressed in the decoder module to obtain a decompressed frame.

Abstract: Video data compression apparatus in which successive groups of two or more images are encoded subject to a predetermined limit on the quantity of output encoded data to be generated for each group of images, comprises a trial encoder for encoding at least a subset of images of a current group of images to generate trial-encoded data for each trial-encoded image; a data quantity allocator, responsive to the quantities of trial-encoded data generated by the trial encoder, for allocating respective quantities of output encoded data for each image in the group of images; and a final encoder for encoding each image of the group of images in accordance with the quantities of output encoded data allocated to that image by the data quantity allocator.

Abstract: An audio-video navigation systems that permits performing a navigation while reproducing a disc, by displaying an operation status of the disc player and analyzed level of each frequency component of the signal are superimposed onto a map for navigation. When performing the navigation while receiving by a tuner, the display of the receiving state of the tuner and analyzed level of each frequency component of the signal are superimposed onto the map for navigation.

Abstract: A method and apparatus in a computer system for decoding and displaying video frames. An estimated number of intraframes which can be decoded in a current interframe run is determined. Based upon the estimated number of intraframes, determining an adjusted time interval in which to display each intraframe in the current interframe run. The intraframes are then displayed at the adjusted time interval in the current interframe run. The adjusted time interval may include equal time periods for displaying the estimated number of intraframes within the current interframe run. Discontinuities in display of moving video sequences can be avoided.

Abstract: A synchronous reproduction apparatus for synchronously reproducing a video signal and an audio signal, receives a multiplexed bit stream in which the following data are packeted: video encoded data obtained by encoding video frames, each frame being a fundamental unit of reproduction of a video signal; video presentation time data showing a time to output a reproduced video signal of each video frame; audio encoded data obtained by encoding audio frames, each frame being a fundamental unit of reproduction of an audio signal; audio presentation time data showing a time to output a reproduced audio signal of each audio frame; and system time data.

Abstract: An arrangement and method for receiving a compressed video stream and generating a decompressed video signal and closed caption data therefrom employs a video decoder a video decompressor that decompresses the compressed video stream to generate a decompressed video signal. The video decoder has a closed caption data embedder that produces closed caption data contained in the compressed video stream for embedding into a video output signal of the video decoder. A single video signal output port is coupled to the video decompressor and the closed caption data embedder and produces the video output signal which includes the decompressed video signal and the embedded closed caption data.

Abstract: A method of reducing a channel hopping time in an MPEG-2 system decoder which can improve the performance of a receiver by minimizing the response time in the event of changing the receiving channel. According to the method, a predetermined storage region is provided in a DRAM, and packet identifier (PID) values of audio and video signals of each program are stored in the storage region. Thereafter, if a receiving channel is changed, the channel-changing operation is performed using the PID values of the audio and video signals stored in the storage region, and thus the time required for the channel change is shortened, thereby reducing the channel hopping time.

Abstract: An image signal interpolating apparatus with a simple structure which generates an interpolation picture element value near the real value without aliasing noise is realized. Predictive coefficients D8 which correspond to the class are read-out, and interpolation data D2 are obtained based on the predictive coefficients D8, thereby, interpolation data D2 near the real value are obtained without aliasing noise. In addition, the flatness near an interpolation-addressed picture element is detected and picture elements used for classification are selected depending on the resultant detected flatness D4, thereby, the interpolation-addressed picture element is classified correctly with the least number of class. Thus the structure can be simplified.

Abstract: A vertical compression circuit of an image playback system displaying an image through interlaced scanning includes: a mode counter for counting horizontal lines within one section of vertical lines based on a compression mode signal and outputting a count; a coefficient selection signal generating unit for outputting a coefficient selection signal for selecting first and second filtering coefficients and for outputting a feedback control signal, based on the compression mode signal; a first coefficient selecting unit for generating first coefficients corresponding to various compression modes and outputting one of the first coefficients based on the first coefficient selection signal; a second coefficient selecting unit for generating second coefficients corresponding to various compression modes and outputting one of the second coefficients based on the second coefficient selection signal; an adder for adding the second coefficient output from the second coefficient selecting unit to one of zero and a feedb

Abstract: An object of the present invention is to improve visual picture quality. A picture signal is divided into a plurality of macro blocks and coding is conducted in macro block units. The coding is conducted including quantization process by a quantization portion. A motion compensation portion outputs the quantity of motion, L, in macro block units. An average quantity of motion, L.sub.ave, of a reference picture stored in a frame memory is outputted from a division portion. A control portion compares the quantity of motion L with two reference values relative to the average quantity of motion L.sub.ave and makes a correction to lower the quantization step in the quantization portion for macro blocks whose quantity of motion L is between the reference values. Accordingly, picture quality is improved in part of picture where motion is small and deterioration of visual picture quality is noticeable.

Abstract: A three-dimensional display apparatus (10) for displaying true three-dimensional images that can be viewed without special three-dimensional eye glasses is disclosed. The apparatus includes a screen (12), a screen moving assembly (14) for moving the screen to a selected number of depth locations, and an imaging assembly (16) for displaying images on the screen as it is moved to its different depth locations. The imaging assembly includes a CRT (80) for successively generating the two-dimensional images as the screen is moved, a focusing system (82) for focusing the images from the CRT to the screen, and a control system (84) for driving the CRT.

Abstract: An improved three-dimensional imaging system for imaging an object having a number of resolvable elements including: an amplitude modulated radiation source for transmitting radiation to the object; at least one photoelectric image detector; a gating circuit for synchronously enabling at least one of the detectors during at least three portions of the period of the modulated radiation source for detecting radiation reflected from the object; and a 3-dimensional image computer having a first routine for calculating the phase angle between the transmitted radiation and the reflected radiation and a second routine, responsive to the calculated phase angle, for calculating the range of the number of elements of the object with respect to each other.

Abstract: A motion vector detection circuit includes a registration determining switch which sets a first registration determination mode wherein at an initial field, correlation values are evaluated by a correlator on the basis of integrated color data of a specific detection block being stored in a representative color memory and integrated color data of twenty-five (25) detection blocks being stored in an integrated color memory. A comparison circuit compares the correlation values with a predetermined threshold value, and if a condition that the threshold value is larger than the correlation value is satisfied in each of eighty (80) percents or more detection blocks, the integrated color data stored in the representative color memory is registered as a representative color of an object, and otherwise, no registration is performed.

Abstract: A system for identifying visitors using a closed-circuit television camera to generate image data by reading images of visitors and a microphone to convert the sound waves received from visitors into electric waves. A door-bell button has a call-bell function available for when a visitor calls and as well as a switch function for operating a computer while the computer is in a hibernation state. The computer system controls and stores the signals and image data from the CCTV camera, the microphone, and the call-bell button while a monitor which displays the image data. This system identifies visitors by storing the visitor's image sensed from an identification device while the owner a user is absent and reconfirms after by using a general purpose home computers; the system has a hibernation function and is inexpensive.

Abstract: A video communications system for transmitting video data between a plurality of transmitting nodes and one or more receiving nodes. The video data at each transmitting nodes is scaled and assigned a display location at the receiving node(s) prior to transmission. The receiving node(s) simultaneously display video data received from each of the transmitting nodes. The video communications system minimizes the use of bandwidth, and uses a simple, inexpensive and efficient encoding and decoding system.

Abstract: A method, system and product are provided for direct rendering of video images to a compressed video data stream. The method includes generating encoded video data directly from an electronic graphic system, the encoded video data representing a full frame image, and generating update encoded video data directly from the electronic graphic system, the update encoded video data representing changes in the full frame image. The method also includes generating movement vector encoded video data directly from the electronic graphic system, the movement vector encoded video data representing movement in the full frame image, and decoding the encoded video data, the update encoded video data, and the movement vector encoded video data for playback at a destination. The system includes control logic for performing the method. The product includes a storage medium having computer readable programmed instructions recorded thereon for performing the method.