Abstract: To maintain lip-sync when a video signal has been edited or switched at a video frame boundary, the associated audio signal is advanced or retarded to the closest audio frame boundary. Any error introduced by this constraint is accumulated and carried forward to direct a subsequent advance or retard decision. In this way, the cumulative error can be kept within an acceptable tolerance.

Abstract: A television receiver includes a tuner for receiving either analog or digital signals. Separate analog and digital demodulators are selectively coupled to the tuner through an RF switch that is controlled by the signal from a sync detector in the output of the analog demodulator. The selected one of the demodulators develops an AGC signal that is coupled to the tuner through a current mirror. Operating potential for the demodulators is coupled through the RF switch so that the oscillator in the non-selected demodulator is disabled and precluded from interfering with the oscillator in the enabled demodulator.

Abstract: A signal reproduced from an ADV head, which is advanced a recording head is error corrected in the ECC decoder. The compression encoding process is decompressed in the compression decoder. The output signal of the ECC decoder is input to the selector. A reproduction signal of the CNF head reproducing a recording data just after recording is supplied to a selector through a ECC decoder and a compression decoder. A bypass signal from the ECC encoder of the recording side is supplied to the the ECC decoder as it's another input. In the ECC decoder, two types of data are written to two different areas of the memory. One of the data is read out selectively and supplied to the selector. The selector is switched from the output of the ADV head to the bypass signal at an in-point. The preview operation can be attained by the picture that has been compressed and decompressed.

Abstract: The present invention relates to the field of digital broadcasting, and more particularly the insertion of digital video streams into other digital video streams. Compressed digital video streams, such as those compressed using the common MPEG-2 system, use a sequence of frames to compress a video sequence. Part of the encoding method to compress frames involves making predictions based on past or future frames. Where part of a compressed video stream is to be inserted into another existing video stream, problems may arise at the insertion point due to dependencies on past or future frames which occur outside of the insertion point. The effect of this is that the decoding process lacks information on which to make its predictions, and this could cause a decoder to reset or display frames out of order. The present invention overcomes this problem in a way which allows frame accurate insertion to be achieved without compromising quality.

Abstract: In a video signal distribution device (1) having operating elements (14, 15) and a control device (13) for evaluating the operating state of the operating elements (14, 15) and for forming a video output signal from a multitude of video source signals (7, 19) in dependence upon the operating state, the video output signal being made available at an output (12) of the device, there is provided, for second and third utilizers, that the video signal distribution device (1) includes a storage device (13) for storing an assignment prescription for assigning at least a second operating state to each evaluated operating state, and that the control device (13) generates at least a second video output signal in conformity with the second operating state predetermined by the storage device, and makes this second video output signal available at at least a second output (24).

Abstract: A demodulator is able to demodulate a television signal and an FM broadcast signal by a common demodulator. Also, a receiver is able to output television video signal and audio signal and an audio signal of the FM broadcast signal by the common demodulator without using a second mixer for frequency-converting the FM broadcast signal to provide an audio intermediate frequency signal of 10.7 MHz when the FM broadcast signal is received. A demodulator includes a first input terminal, a second input terminal, a third input terminal and a change-over switch and wherein the change-over switch connects the first input terminal, a video detector and a video carrier generator to receive the television signal and the change-over switch connects the third input terminal, the video detector and the video carrier generator to receive the FM broadcast signal.

Abstract: An apparatus for processing a signal in a digital television, and more particularly, an apparatus for adaptively processing an externally-input video signal in a digital television, in which a signal processing route is controlled to automatically determine the type of a video signal, which is input to an external input terminal, and to adaptively process the video signal regardless of whether the signal is an interlaced scanned video signal or a progressive scanned video signal, is provided.

Abstract: The present invention switches an input/output route for each signal, even if types of signals are increased, without installing additional switchers.

Abstract: An apparatus and a method for converting multi-source input images are disclosed. The apparatus includes an outside interface part including N outside interface units and pre-processing the input image, a format converting part including N format converters and converting formats and sizes of the pre-processed images as required by a display device, a memory part interacting with each format converter and storing each pre-processed image or format-converted image, a switching part switching the format-converted images according to a display mode, a multiplexer multiplexing the switched images and generating a corresponding display image, and a display processor processing the display image for the display device. Therefore, various input images can be properly converted to have desired formats and sizes based on a display mode of a display device so that the converted multi-images can be adequately displayed on a display device.

Abstract: A system can be used to automatically judge and select latest activated and input signal that has been accepted by the system as the command of executing a certain operation and therefore be displayed on the sound and/or image display device instead of manual switching when multiple signal providing devices are coupled to share a common sound and/or image display device, when the selected executing signal providing device is interrupted, can automatically switch back to output signal from the former or other predefined signal source, and the system can be combined with manual mode so that user can also select one of the multiple signal providing devices as the executing signal manually.

Abstract: Multiple scaled videos are created using a single video decoder. A plurality of digital video data streams may be displayed in scaled or full-size on a video display. A viewer may select one or more of the scaled videos for display using a remote control. Downsampled frames may be scrolled into view using the remote control. A viewer may select a video to view in real time at full size or in scaled format.

Abstract: A frame conversion device for switching between a plurality of image signals that are not synchronous and outputting each image signal continuously and synchronously. In addition, a desired signal is extracted from the continuous image signals and then output in parallel with the continuous image signals. The frame conversion device utilizes a frame conversion unit for recording an image signal optionally selected from a plurality of input image signals. A frame unit is utilized for reproducing a recorded signal outputted from the frame conversion unit independent of the operation of the frame conversion unit. The frame conversion unit includes an identification signal assigning part which assigns an identification signal to a non-image region of an image signal selected from a plurality of input signals. Frame-converting storage parts store the selected image signal. A signal output part selectively reads the image signal stored in each frame-converting storage device.

Abstract: When input equipment is instructed by a remote control unit on the basis of a display of a monitor, a data signal is transmitted from a microcomputer of an AV amplifier to a microcomputer of a CD changer. When the signal is received by a microcomputer of the CD changer, display data is formed in the microcomputer of the CD changer on the basis of data in a memory and is outputted. In the AV amplifier, a switch is switched to the CD changer side. A cursor is formed by the microcomputer of the AV amplifer, the cursor and display data from the CD changer are synthesized by an image synthesizing circuit and displayed on the monitor. When an instruction is generated by the remote control unit on the basis of the display on the monitor, position coordinates of the cursor on the picture plane are generated from the microcomputer of the A/V amplifier to the microcomputer of the CD changer. On the basis of the display data and the position coordinates, the CD changer is controlled by its microcomputer.

Abstract: Methods and apparatus are described for receiving digital television signals where the receiver is capable of demodulating and demultiplexing the digital television signals from multiple, independent transmission channels. The preferred embodiment of the present invention provides for a Dual Channel Digital TV Receiver which receives signals from two independent transmission channels. In order to address each of the digital television signals from the two independent transmission channels, the Dual Channel Digital TV Receiver of the preferred embodiment of the present invention includes two independent paths for channel demodulation and transport stream demultiplexing. Thus, within the Dual Channel Digital TV Receiver of the preferred embodiment of the present invention, a signal from each of the transmission channels are received, decoded and sent for further processing or viewing, as desired by the user.

Abstract: A video communication system provided with a plurality of video communication devices connected to a network includes a circuit for selecting and displaying video data received from the above-described video communication devices and video data received from a video storage apparatus. The video storage apparatus includes a video data storage device and a means for transmitting required video data to the video communication device in case a request for reading is made from the video communication device.

Abstract: A video signal processing apparatus enabling reuse by a previously used internal configuration, provided with a storage means for storing the states of all or part of the intersections of a matrix switch to the outside side of which inputs of video signal processing units and video signal output channels are connected and an intersection reproducing means for setting intersections of the matrix switch in accordance with the content of the storage means. When later using current settings of the matrix switch, the current settings are stored in the storage means. When desiring to reuse the apparatus by the stored settings after using it by different settings, the intersection reproducing means is activated. Due to this, an operator no longer has to repeat an operation for setting each and every intersection and can obtain the desired settings by just activating the intersection reproducing means.

Abstract: In order to allow a channel of a television set to be changed as quickly as possible, the television set is equipped with at least two receiving devices. At least one of the receiving devices is set in advance to a specific channel that could be expected to be selected in the future. When a channel change is then initiated, by which the channel which has been set in advance is selected, the picture corresponding to the television signal received by the receiving device which has been set in advance can be immediately displayed.

Abstract: In a video broadcast or production plant including first and second video sources which provide first and second digital video signals respectively at integer related frame rates, the video sources are operated so that the first and second video signals are aligned at a reference time. Switch points for updating a router in the plant are defined by measuring lapse of time from the reference time.

Abstract: A signal distribution apparatus having a learning feature for recognizing a remote control device code associated with a particular signal source and coupling the associated signal source to an output in response to receipt of the device code. The remote control device code may be transmitted using a universal remote control device or a dedicated remote control device associated with the particular signal source. The present invention allows a user to couple a plurality of signal sources and a display device, such as a television set, to the present signal distribution apparatus and thereafter couple a selected one of the signal sources to the display device using the universal remote control device or the dedicated remote control device. The learning feature obviates the need for a dedicated remote control for the signal distribution device.

Abstract: The analog-to-digital converter device (24) provided for processing teletext signals is used for two purposes. In time slots in which no sync signal or teletext signal is separated from the video input signal (CVBS), the analog-to-digital converter device (24) is used for other tasks, e.g. for interrogating keypad inputs of an operator control unit (30).

Abstract: Method and apparatus for generating a composite audio signal clocked to a selected frequency from left and audio input signals. A video/audio signal generator transmits the left and right audio input signals, together with a video signal having a horizontal synchronization signal embedded therein. If copy protection has not been applied to the video signal, the embedded horizontal synchronization signal will have a frequency of 15.734 KHz. If applied to the video signal, copy protection techniques will shift the frequency of the horizontal synchronization signal. To avoid distortion of the composite audio signal, a switch configured to selectively couple the video signal or a secondary video signal generated by an internal video signal generator to an audio signal processor which generates the composite audio output signal from the left and right audio input signals. Embedded within the secondary video signal is a horizontal synchronization signal having a frequency of 15.734 KHz.

Abstract: A mix-effect bank architecture for a production video switcher has multiple programmable outputs, the outputs being determined by a selected operational mode including split, programmable clean feed and mix minus modes. Four keyers with video and key signal inputs produce four outputs. The outputs are selectively routed to four corresponding inputs of four mixers, which mixers also have two pairs of background/utility video inputs. The four mixers provide four outputs which are determined by the selected operating mode. A pair of background video signals may be provided to all of the mixers to provide programmable clean feed outputs, or the pair of background video signals and a mix minus pair of background video signals may be provided to the mixers to provide mix minus outputs, or a primary set of background video signals may be provided to two mixers and a secondary set of background video signals may be provided to the other two mixers for the split mode.

Abstract: When a changeover instruction is input to video output changeover control section 108, power control section 112 turns on the power to changeover target video output section 102. Timing change section 111 synchronizes sync signal Y output by changeover target video output section 102 with sync signal X output by changeover source video output section 101. Power control section 112 turns off the power to changeover source video output section 101.

Abstract: A media control apparatus that is sensitive to touch along a length of an actuation sensing area. User actuation at different positions is translated into events for use by an application to access different media recording elements, based on an association between the positions and the media recording elements.

Abstract: A VCR-projector assembly that permits projection of a video signals of a TV or video tape in a desired direction. The VCR-projector assembly includes a key application part including various keys, a tuner for tuning broadcasting signals received through an antenna, a VCR for recording the broadcast signals from the tuner and reproducing the recorded broadcast signals or other recorded signals, e.g.

Abstract: A three-dimensional model is created to represent an environment to be captured on video. A camera is fitted with pan, tilt and/or zoom sensors. An operator selects a location in the environment. The three-dimensional model is used to determine the three-dimensional coordinates of the location selected by the operator. Information from the pan, tilt and/or zoom sensors is used to transform the three-dimensional coordinates to a two-dimensional position in the video from the camera. Using the two-dimensional position of the video, a graphic is properly added to the video such that the graphic appears to be at the selected location in the environment.

Abstract: A remote control unit for efficiently selecting programming/channels is disclosed. The remote control unit is particularly applicable to receiver stations that receive transmitted signals from more than one source on more than one frequency. Movement back and forth between the different signal sources typically calls for the viewer to perform more than one selection operation. In the disclosed embodiment, a single selection operation (e.g., entry of a desired channel number or operation of one of the arrow keys or the up/down channel keys) initiates the several actions that are needed to move from one source to another and select a channel associated therewith. The different sources may be identified automatically based on channel assignments. In the disclosed embodiments, the channel number assignments for one signal source are in the range from “0” to “99,” and the channel number assignments for another signal source are in the range from “100” to “999.

Abstract: A method of concealing temporal shifts when a digital video effects system is used with a video switcher adds a mixer to the digital video effects system to mix the input to and output from the digital video effects system if the image to be transformed is on-screen at the beginning of the effect. An input video signal from a keyer in the video switcher is switched by an effects send/return matrix to the inputs of the digital video effects system and the mixer, and the output from the mixer is returned to the effects send/return matrix for input to the mix/effects stage of the video switcher. When the digital video effects system is bypassed, a delay circuit is used in the bypass path of the effects send/return matrix, the delay time equaling the processing time of the mixer.

Abstract: A combined terrestrial wave/cable broadcast receiver is disclosed which identifies if a cable broadcast program being carried and received or a cable broadcast program to be received is a HD broadcast and receives a HD broadcast from a terrestrial wave broadcasting station in the form of a HD terrestrial wave broadcast automatically or according to a user's selection, and a program information processing method therefor which processes program information such that it can identify a cable broadcast program as a HD broadcast in an EIT.

Abstract: There is disclosed a system capable of dispensing with the video/audio encoder in each communication terminal. A switch selects one of plural video/audio inputs. A video capture device of a transmission apparatus digitizes the selected video signal. A video encoder effects compression-encoding of the video capture device according to motion JPEG, MPEG and H.261. A selector sets compression video data to be transmitted, among the video data compressed by different encoding methods, and sends such data to a communication buffer. An audio encoder digitizes and encodes the selected audio signal and sends such signal to the communication buffer. The encoded video and audio data of the communication buffer are read to a network. A control circuit controls devices according to control commands received through the network.

Abstract: A digital data transmission apparatus which can suitably route and transmit to a desired apparatus two types digital data, that is, digital data of a serial digital interface (SDI) format and a serial digital data interface (SDDI) format having a partially common format to the SDI format even if they are mixed, the digital data transmission apparatus having a first routing apparatus (20, 20A) having a first signal supplying means (102) for supplying the data of a first transmission packet of the SDI format; a second signal supplying means (104) for supplying data of a second transmission packet of the SDDI format having a common control data portion to that of the SDI format and having the same data length; a first input terminal receiving the data of the first transmission packet; and a second input terminal receiving the data of the second transmission packet and outputs the first input data supplied to the first input terminal from the first output terminal and outputs the second data supplied to the secon

Abstract: An endoscope system comprises plural video processor devices for an endoscope prepared for every video endoscope, a video signal switching device connected to each of the video processor devices for an endoscope, and a monitor connected to the video signal switching device. The video signal switching device comprises two video signal input terminals respectively connected to the video processor devices, a flip flop for generating an alternative switching signal in accordance with the rotational position of a switching dial, two switches of which one ends respectively connected to the video signal input terminals and which opens and closes in accordance with the switching signal generated from this flip flop, and a video signal output terminal connected to the other ends of these two switches.

Abstract: A signal processing device which selects a signal, using for example, a channel selector in a television receiver or a source selection circuit in an amplifier, and compensates automatically for differences in signal parameters, such as volume of sound or picture brightness, between the signal sources. Corrections which are applied to the relevant parameter within a given time interval after source selection are divided within the time interval between a global value and a local value (for example an offset) for the relevant signal source.

Abstract: In a recording device (1), a switching portion (19) is supplied with an ID signal from an identification signal generating portion (21) in a video display device (2) through a connector output portion (8). The switching portion (19) is also supplied with an ID signal outputted from an identification signal generating portion (15) in the recording device (1). When the ID signal indicating the video display device (2) is outputted from a return identification signal distinguishing portion (17) to a recording standby signal generating portion (18), the switching portion (19) is switched to the side-b so that the ID signal inputted to the recording device (1) is outputted to the outside as it is. The ID signal passed through the recording device (1) is inputted to an identification signal input portion (41) in an analog video signal output processing portion (4).

Abstract: A video line connection apparatus for adaptively connecting external input/output lines, the apparatus capable of flexibly selecting an output by responding to the external line which is connected to an input jack. The apparatus includes: a plurality of composite video input jacks; a plurality of Y/C separated video input jacks; at least one composite video output jack; at least one Y/C separated video output jack; a first multiplexer; a second multiplexer; a third multiplexer; a luminance/chrominance signal separating unit; an on-screen path control unit; a chrominance signal path control unit; and a control unit. The apparatus offers convenience to the user and dispels the user's uneasiness caused by improper connection of video lines.

Abstract: A video transmitting apparatus having a plurality of transmission medium for transmitting multiplexed video information, a plurality of video information receiving units each connected to a corresponding transmission medium to receive specific video information on the corresponding transmission medium, a video displaying unit for displaying video information, a switcher for connecting the video displaying unit to any one of the video information receiving units to supply video information to the video displaying unit, and a video display requesting unit for communicating with each of the video information receiving units and the switcher to request to display specific video information on the video displaying unit by giving instructions to a relevant video information receiving unit which can receive the specific video information and the switcher.

Abstract: An automatic channel responsive television input source selection switch couples output signals from a selected one of a plurality of input television input source interface circuits to a television in accordance with a user channel selected with a user channel selector manually controlled through one of a remote control unit and interface and a manual interface. A look-up table memory stores each of the possible user channel numbers along with an associated input signal source channel and an indication of signal source identity, such as indication of a direct broadcast satellite television signal source, a public television broadcast source and a security camera source. The switch based on the associations stored in the look-up memory selects the associated video input signal source and provides an indication of the associated source channel number to a tuner included in the selected interface.

Abstract: A communication system easy to be operated upon as to the display method of images generated by image generating units of a plurality of communication terminals and as to the control of each image generating unit.

Abstract: A multiplexing apparatus for use in a computer system is disclosed. The multiplexing system is typically designed for multiplexing various sources of video signal inputs for subsequent processing. The multiplexing apparatus includes at least one analog video input connector, but preferably has more than one, a programmable signal connector, and a plurality of video output connectors. The programmable signal connector couples to the analog video input connector and selectively multiplexes the analog video input signal. The plurality of video output connectors are further coupled to the programmable signal connector, and they receive the multiplexed video signal from the analog video input connector for processing through at least a first video stream. Additional video streams are also possible for processing for a single input signal.

Abstract: An editing system and a video signal output system are disclosed. The inventive system comprises a server for reproducing video signals for a plurality of scenes from disk drives and for consecutively outputting these video signals through a single output port, a frame memory for storing one frame of video signals from the output port, a special effect processor for receiving both the output of the memory and the video signals from the output port, and a controller for controlling the writing and reading of data to and from the frame memory as well as the retaining operation of data in that memory. The controller controls the frame memory so that the latter will continuously supply the special effect processor with the video signal representing the last frame of a given scene for a predetermined period of time, thereby allowing the processor to output the video signal having undergone special effect processing. The video signals may be processed in units of fields instead of frames.

Abstract: A method of and apparatus for identifying a signal transmitting source detects a switching of a signal on the reception side thereby to prevent a transmission error from occurring when a signal is switched. The apparatus for identifying a signal transmitting source comprises a transmitting source identifying code extracting circuit for extracting a transmitting source identifying code provided in a SDDI format header of a received signal, a preceding transmitting source identifying code holding circuit for detecting a change of the transmitting source identifying code, and a transmitting source identifying code comparing circuit for detecting a switching of a transmitted signal based on the transmitting source identifying code thus changed, thereby detecting a switching of the transmitting source.

Abstract: A method and apparatus for transporting digital images is provided. In one embodiment, a personal electronic handheld digital camera executes an application program that enables a user of the camera to send one or more digital images, formed by and stored in the camera, from the camera to a destination. One or more addresses describing one or more destinations are selected or identified. One or more stored digital images are selected and associated with the one or more addresses. Optionally, a voice message is recorded and associated with the one or more addresses. The camera is coupled to a data communication network, and a transport operation is initiated. Under control of the application, the camera sends the selected images to the designated destinations over the data communication network. When an address is a physical address, for example, a postal mail address, the selected images are automatically routed to a central server.

Abstract: An editing apparatus of relatively small size for editing material information highly efficiently and accurately with simplified processing capabilities has a plurality of tape transports, a selector for selecting input and output paths for the tape transports, a playback device for processing reproduced output signals from the tape transports, a temporary storage device for temporarily storing an output signal from the playback device, a signal processor for processing output signals from the tape transports and the temporary storage device, and a controller for controlling the tape transports, the selector, the playback device, the temporary storage device, and the signal processor, and determining the execution of a re-try playback mode for storing an output signal from the playback device again into the temporary storage device.

Abstract: In a recording support mode, states of an HD device and a VTR are detected, and if the two are normal, video signals are recorded in both. The signal recorded in the HD device can be reproduced almost simultaneously with the recording upon request. Where either device is abnormal, the video signal is recorded in the normal device. In the reproduction support mode, the reproduction position of the HD device is detected, the VTR video tape is brought to that position, it is checked whether or not the video signal the same as the video signal which has been reproduced by the HD device is recorded based on the time code of the video signal recorded at that position, and the reproduction of the same video signal is carried out simultaneously with the HD device. Thereafter, where an abnormality occurs in the HD device, a third switch is changed over so that the video signal reproduced at the VTR is output.

Abstract: An architecture for switching reference generation uses a scanning sync separator to sample each output from the matrix outputs in turn to determine the format of each output. A controller selects an appropriate switch reference signal from among a plurality of switch reference signals according to the determined format and applies such selected switch reference signal to a crosspoint switch corresponding to the matrix output so that subsequent switches between matrix inputs are synchronous.

Abstract: Provided with a method of and circuit for automatically selecting a signal without using a separate signal selecting switch and for displaying the content of the signal by way of OSD (On Screen Display), the circuit including: a D-sub connector for transmitting a D-sub synchronous signal applied from a D-sub signal cable; a BNC connector for transmitting video signals and synchronous signals applied from a computer via a BNC signal cable; a selector for selecting one of the signals applied from the two connectors in response to a switching signal; and a microcomputer receptive to the BNC/D-sub signal transferred from the selector, and sending a control signal for selecting the BNC/D-sub signal to the selector according to the presence of the synchronous signals and DPMS state.

Abstract: A video display apparatus includes: storage means for holding connection information on connections between a external input terminals and external units corresponding thereto; and switching control means for performing control so that each terminal not connected to the corresponding external unit among the external input terminals is skipped based on the connection information stored in the storage means when the switching of the external input terminals is performed. The switching of the external input terminals is controlled by the steps of: previously storing the connection information on connections between the external input terminals and the external units corresponding thereto in a memory; referring to the stored connection information when the switching of the external input terminals is performed; and skipping each external input terminal not being connected to the corresponding external unit, based on the result of the referring.

Abstract: An auto audio/video output circuit with multiple audio/video inputs, the circuit having an analog/digital converter unit for convert inputted video signal into digital signal, a CPU for memorizing the sequence of inputted audio/video signals, permitting the last inputted audio/video signal to be outputted to audio/video output amplifiers for amplification and further output to a TV.

Abstract: The invention comprises a method of selecting for further processing (e.g., display) a desired television channel suitable for use in a television receiver capable of receiving both analog (e.g., NTSC, PAL or SECAM) and digital (e.g., ATSC or DTB) television signals. The method provides appropriate user feedback such that channel selection is effected in a relatively rapid manner utilizing one of a direct channel selection, an electronic program guide selection process, a picture in picture montage selection process or a combination thereof. One embodiment of the invention implements a method for masking the channel selection latency period inherent in ATSC-like television systems.

Abstract: Associating media recording elements in a sequence with positions on a linear sensor, and presenting a corresponding one of the media recording elements to the user in response to the position of the users touch. In another general aspect, a media control apparatus which includes a linear actuator and a plurality of media storage areas ordered according to a time sequence. The linear actuator includes an actuation sensing area sensitive to user actuation at one of a plurality of positions along a length of the sensing area. The apparatus can be responsive to a position signal output of the linear actuator to access one of the media recording storage areas corresponding to a user-selected position. The apparatus can also include a linear display area mounted in parallel with the linear actuator.