Abstract: A system and method for a generating a data stream for encoding by combining data from a multiple of sources. In order to maintain a continuous phase in the combined data stream, any phase differentials between the data supplied from the multiple sources are eliminated upon combination of the source data. The phase differential between the data from any two different sources is eliminated by trimming data from one of the sources such that when the trimmed data is combined with the data from the other source the resulting combined stream has a continuous phase.

Abstract: In a single-chip multistandard video modulator arrangement in which audio signals for transmission with video signals are first modulated onto a subcarrier and then combined with the video signals for modulation onto a VHF or UHF main carrier, the modulated subcarrier signals are passed through a high-pass filter before being combined with the video signals in order to reduce the amplitude of any audio frequency components, and the resulting variations in main carrier amplitude, which tend to produce "sound in vision" effects.

Abstract: Textual and graphical displays are provided on a television screen using a hypertext markup language (HTML). On-screen display devices allow a user to invoke hyperlinks to different pages of HTML-coded data in addition to functions calls for controlling television and non-television appliance functions. A method provides HTML-coded display data which is processed to provide a signal suitable for reproduction on a television. The display data may provide information on a featured movie or other presentation of an associated video programming service signal such as a network television broadcast. Function calls allow the control of various television functions and programming options, such as the purchase of pay-per-view programming, or television display options such as aspect ratio, channel, brightness, picture-in-picture, or split-screen. Non-television appliances which may be controlled with function calls include audio equipment which is associated with the programming service (e.g.

Abstract: A television receiver comprising an information extracting circuit for extracting information from a format or content of an input video signal, a video signal processing circuit for processing this video signal by a program or data, a memory for storing the program and data, a CPU for controlling, operating or driving these elements, and a display device for displaying an image. The video signal processing circuit can, under the control of the CPU, decode the signal, correct or set the picture quality such as gradation and sharpness, or adaptively process an on-screen display based on the input video signal. The television receiver is also able to adaptively extend the functions of the television receiver corresponding to various signal formats.

Abstract: A video signal level detector is configured to avoid the erroneous recognition of channels adjacent to normal channels as those which are to be stored during performance of an automatic channel detection and storage function. The video signal level detector separates at least two target signals whose levels are to be detected from an input composite video signal; detects signal levels of the target signals; compares each of the detected levels with a reference voltage level; and logic-operates the result to obtain a final detection so that a storage possibility of automatically detected channels is determined.

Abstract: A peripheral device is provided for a personal computer enabling the PC to provide the functions of a set-top box for television reception. Communication of television and control signals between the television and PC can be provided over the cable wiring already provided in the subscriber premises. Alternatively, wireless communication can be provided between the television and the PC. The invention obviates the need for a set-top box and the associated expense thereof. The television operations take place in the multitasking environment of the PC, so that the PC can be concurrently used for other applications.

Abstract: A display device for displaying an image represented by an incoming raster scan video signal comprises a PALC display panel having a rectangular array of addressable panel elements. A frame buffer stores a frame of video and a comparator compares the incoming video signal with the frame stored in the frame buffer on a line-by-line basis. In the event that a line of the incoming video signal is different from the corresponding line of the stored frame, the line of the incoming video signal is supplied to the display panel and is used to update the corresponding line of the frame buffer. Otherwise, the line of the incoming video signal is not supplied to the display panel.

Abstract: In a broadcast system for transmitting a communication signal to a plurality of receiver units, each receiver unit having associated therewith respective authorization information identifying subsets of the communication signal the receiver unit is authorized to process, a method for controlling access to the communication signal includes the step of receiving a conditional instruction. The conditional instruction specifies a modification of the authorization information conditioned upon whether the receiver unit belongs to a receiver unit category. The method further includes the step of executing the conditional instruction to modify the authorization information conditioned upon whether the receiver unit belongs to the receiver unit category.

Abstract: In a television equipped with an image control apparatus, when a signal reception condition is deteriorated, a poor image is not displayed on the television screen by reproducing saved image data. The image control apparatus is arranged by a receiver for receiving a signal including image data, a detecting device for detecting disturbance of the; signal received by the receiver, a memory for saving the image data included in the signal received by the receiver, and a display controller for controlling display of the image data on a display unit. That image data saved in the memory is read out on the detecting device detecting the disturbance of the signal and is displayed, while the disturbance of the signal is continued.

Abstract: An image information processing apparatus is described that suppresses noise generated in digital signal processing while preventing the circuit scale from enlarging. The apparatus includes a separator, a first detector, a second detector, a phase-locked loop, an A/D converter, a phase difference detector, a chrominance data processor and a luminance data processor. The phase difference detector detects a phase difference between the reference clock signal and the scan sync signal. The luminance data processor combines the luminance data in Units of two pieces to produce compensated luminance data in accordance with the phase difference.

Abstract: A system for processing an input signal so as to automatically apply a plurality of effects thereto in a user-defined manner. The dynamics of the input signal are analyzed so as to generate a plurality of signal characteristics. Each signal characteristic is processed through a plurality of effects in a manner controlled by the user so as to be routed automatically to such of the effects in the plurality of effects as the user defines.

Abstract: In order to play back a plurality of kinds of image data using a single device, a 1394 receiver receives data transmitted via an AV bus according to a format of an IEEE 1394 standard. A separating circuit then determines a format of this data by referring to a prescribed region of a CIP header of this data. When this data is MPEG-PS data, this data is outputted to an MPEG-PS decoder. When this data is MPEG-TS data, this data is outputted to an MPEG-TS decoder. When this data is DVCR SD data, this data is outputted to a DVCR-SD decoder. The MPEG-PS decoder, MPEG-TS decoder and the DVCR-SD decoder then decode the supplied data of respective formats.

Abstract: In analog color television transmission methods, the transmitted CVBS signal comprises luminance and chrominance signals which have to be separated from one another in a television receiver in order to permit separate further processing. Comb filters can be used for this, a picture contents-dependent controller frequently being worked with which switches over between different filter algorithms, that is to say different line combinations, as a function of the respective chrominance signals. In the case of conventional comb signals, the CVBS signal is split into the luminance signal and a chrominance signal which is still to be demodulated into the two color difference signals. In this case, the identification of color edges, in particular, is not always carried out in a manner free from errors. This can lead to only incomplete separation of the luminance and chrominance signals, so that cross effects cannot fully be avoided.

Abstract: Upon a reception of a request for connection from a terminal unit, a server sends a start menu screen for video selection. A video selection range is narrowed by changing menu screens. When a certain menu screen is reached, a history table is accessed to read frequencies of use of a plurality of corresponding videos. Heading parts of frequently used videos are sent to the terminal unit, where they are stored in a terminal memory. With a final selection of a video, its heading part is read from the terminal memory, to be reproduced. A desired video quickly starts. The remaining part of the video is sent from the server.

Abstract: According to the preset mode instructions from the operating part 111, data of a plurality of channels to be included in the search screen are input from the operating part 111. These channel data are transferred to the second channel selection controlling part 109 for storage. When preparing, a search screen, these stored channel data are used for constituting a search screen, which is displayed on the displaying part 112. The channels desired or frequently watched by the user alone are searched and their images are displayed on the multiple-division screen as still pictures.

Abstract: A kinescope video driver includes a series connection of a main cascode transistor coupled to a cathode of a cathode ray tube and a video signal amplifying transistor. A second cascode transistor is coupled between the main cascode transistor and the video signal amplifying transistor. The second transistor is coupled to the video signal amplifying transistor through a short wire conductor and to the main cascode transistor through a long wire conductor.

Abstract: The present invention relates to a signal converter and a signal conversion method in which an interpolated image is formed on the basis of suitable classification according to features of an input image signal to obtain a high-definition image signal. In a frequency characteristic determination section, frequency characteristics of an input image signal are classified and evaluated with respect to each of predetermined unit blocks. On the basis of the result of this classification, the desired one of a plurality of pixel patterns is selected with respect to each of the unit blocks of the input image signal, thereby setting a spatial class. In a classification section, the input image signal forming the selected pixel pattern undergoes data compression processing by the number of quantization bits according to the frequency characteristics, thereby forming a spatial class after compression.

Abstract: A microcomputer gives instructions to a sound processor to set a value of a volume prescribing a sound volume outputted through a speaker to a predetermined value as a parameter. The sound processor stores the value of the parameter in a RAM and sets a sound volume corresponding to the value of stored parameter. The microcomputer reads the value of parameter which is set practically by a sound processor, and decides whether the value of the parameter is different from the value that the setting thereof has been instructed or not, and decides that abnormality has been generated in the sound processor when they are different from each other, thus making it possible to detect generation of abnormality in an apparatus that has no function of detecting generation of abnormality.

Abstract: A device for receiving a digital broadcasting satellite (DBS) signal, includes a controller for generating a first signal for selecting a program guide signal included in the DBS signal and a second signal for selecting one of a plurality of programs which are included in the program guide signal, in response to input of certain key signals; a decoder for decoding the program guide signal in response to the first signal; a storing unit for separating and storing the decoded program guide signal as position data, channel data and video data; a signal compressing unit for compressing the video data corresponding to the second signal; a mixer for mixing the decoded program guide signal as a main screen signal with the compressed video data as a sub-screen signal; and a display unit for displaying the signals mixed by the mixer.

Abstract: A delay correction circuit includes a source of a clock signal and a source of a timing signal asynchronous with the clock signal. A timing signal detector is responsive to the clock signal and the timing signal, and is properly operative only when the timing signal is stable for a predetermined time period around the clock signal. A control circuit conditions utilization circuitry to operate after a delay time after the timing signal is detected. Adjusting circuitry conditions the control circuit to adjust the delay time if the timing signal was not stable within the predetermined time period.