Abstract: A data broadcast receiving apparatus used in a system is combined with another transmission line such as telephone circuit. By receiving a television broadcast having a data broadcast signal, such as a teletext signal, superposed on the television broadcast signal, in which a first auxiliary information signal contained in the data broadcast signal and a second auxiliary information signal from the other transmission line are extracted, a control procedure is created responsive to the first and second auxiliary information signals, and the data broadcast signal and main information from the other transmission line are processed responsive to the control procedure.

Abstract: A system for switching video of two different standards that uses a single crosspoint matrix and a single local controller coupled to two memory blocks for storage of crosspoint selection data. The crosspoint selection data is written to the crosspoint matrix according to the video reference signals that correspond to the crosspoint selection data to be written. Switching of the crosspoints then occurs according to the video reference signal corresponding to the crosspoints to be switched.

Abstract: An apparatus for providing described television services includes a receiver for receiving description data corresponding to an audiovisual program; a text-to-speech converter for converting the description data into a speech signal corresponding to the description data; a memory device for receiving and storing the speech signal and a corresponding time code from the audiovisual program; a mixing circuit for retrieving the speech signal from the memory device and mixing the retrieved speech signal with the audio track of the audiovisual program to produce a combined audio signal; and a transmitter for simultaneously providing the combined speech signal and the audiovisual program to a viewer. The apparatus provides the combined speech signal to the viewer via the SAP channel. The apparatus may also include a translator for translating the description data into a foreign language prior to converting the description data into the speech signal.

Abstract: Encoded data storage devices with stored data corresponding to: (a) information for coaching a user in accomplishing one or more steps of a specified task in a learn-then-perform way, and (b) an instruction set which enables the user access to access the information on a user-selected step of the task. Methods of providing and employing encoded data storage devices of the character just described.

Abstract: A television receiver is disclosed which is designed to display two types of input picture signals, for example, an NTSC signal and a VGA signal on at least two display areas of one image screen simultaneously. The television receiver includes an auxiliary coil and a switching circuit. The auxiliary coil is operable in first and second operation modes. The first operation mode is such that an electron beam is scanned in sequence along the scanning lines to reproduce the VGA signal having a horizontal scanning frequency of substantially twice that of the NTSC input signal, while the second operation mode is such that the scanning line intervals are controlled so as to scan the electron beam two times along the same scanning line to reproduce the consecutive two of line signals of the frequency-converted NTSC signal which are formed by the same portion of the NTSC input signal.

Abstract: A security system is provided including an electronic device allowing the use thereof during normal operation, a lock button adapted to transmit a lock signal upon the depression thereof, and an alphanumeric keypad for allowing the entry of a password. Further provided is a control mechanism having a first mode upon the entry of a proper password wherein the electronic device is allowed normal operation and a second mode upon the receipt of the lock signal wherein the control mechanism is adapted to preclude the normal operation of the electronic device.

Abstract: The disclosure relates to a method and a circuit for storage of digital tuning data and parameters for a number of television channels in a rewritable memory. The channel search is initialized by pressing a single button to initialize a scan of the reception frequency band. The scanning of the frequency range is interrupted for a preset time-out period .DELTA.t each time a stop-scan signal is generated and resumes automatically until the entire range has been scanned. After each stop-scan pulse, if the single button is pressed during a time-out period, At, the system begins toggling through the possible values of each parameter relating to the station, the current value of the parameter being memorized when the single button is pressed again. The invention also includes a television and video cassette recorder implementing the above method.

Abstract: In order to suppress undesirable video scenes, such as advertisements during a television program, it is known to suppress the undesirable video scenes by image processing when characteristic images for the beginning and end of the undesirable video scenes are known. Since many broadcasting stations have started to characterize only the beginning of the advertisements, however, the known process does not ensure the return to the television program at the end of the advertisements. The method allows undesirable video scenes to be reliably detected for recording the same or for reliably returning to the television program when the undesirable scenes are suppressed. For that purpose, when the beginning of an advertisement is recognized, an image that precedes in time the beginning of the advertisement is recorded.

Abstract: The encoded television receiver timer pre-programming indicia listed on reverse side of a program schedule page allows a timer pre-programming feature on a television or, in particular, a video cassette recorder (VCR) to be programmed. The control indicia are decoded by a decoder built into either the video cassette recorder or controller, which convert the indicia into channel, date, time and length information for timer preprogramming. The channel, date, time and length information is communicated to the VCR to automatically activate the VCR to record a given television program with the corresponding channel, date, time and length. Alternately, the channel, date, time and length information is decoded directly in the controller and appropriately sent to the VCR for recording a program. The program schedule pages with control indicia utilized with the present invention can be printed in advance and used with a VCR or controller with the decoding.

Abstract: In the present invention, when power is restored after a loss of power; an intelligent TV can receive communication services with correct current time information by displaying the clock set menu for resetting the current time by (a) checking for the presence of time information to determine whether there has been a loss of power; (b) displaying a clock set menu screen to enable resetting of the current time if a loss of power is detected in the step (a); and (c) transmitting the reset current time information to the information signal processor of the intelligent TV.

Abstract: An intelligent television receiver for receiving a signal of a desired channel and displaying it on a CRT is provided. The intelligent television receiver is operable with computer communication services provided by a value added network and includes a modem for transmitting and receiving information data according to connection command data while being connected with a value added network (VAN) via a communication cable. The intelligent television receiver also includes an information processing unit for outputting the connection command data if a communication mode is set in the receiver, for decoding the information data transmitted from the modem to display the information on a CRT and for transmitting command data necessary for the transmission and reception of the information data to the modem.

Abstract: A television set includes an integrated receiver decoder. By integrating the receiver/decoder with the television, some circuitry and memory are shared. Moreover, a digital video signal provided by the receiver/decoder need not be converted to an analog NTSC signal before transmission to the television CRT. In one embodiment, where a television having a 16.times.9 aspect ratio is used, on-screen display data is displayed without distortion.

Abstract: An NTSC tuner, an ISDB tuner, a CATV tuner, and a CATV modulator are connected to an analog switch box. Demodulation sections, an A/D, clock-reproducing section, and a modulation section are connected between the analog switch box a bus. MPEG2 video decoder sections, an MPEG2 audio decoder sections, an NTSC/EDTV horizontal decoder section, an EDTV vertical decoder section, an MPEG2 video encoder section, and an MPEG2 audio encoder section are connected between the bus and a bus. An audio amplifier, a graphics controller, and A/D conversion sections are connected the bus. The switch box and the buses are connected to a bus controller, which is connected to a CPU, a memory, and a remote-control I/F. These modules are selectively used to receive and process digital broadcasting signals, digital CATV signals or NTSC broadcasting signals.

Abstract: A television receiver includes a unit for controlling program reserve, a storage unit for storing previously remocon codes of an external picture recording apparatus in a memory of the control unit, an output terminal for outputting the remocon code corresponding to a predetermined function at a predetermined time, and a wire unit having one end connected to the output terminal and the other end to which an infrared ray signal emitting portion driven by the remocon code output is connected, and operates in such a way that in response to an instruction issued from the program reserve controlling unit, the remocon code corresponding to the necessary function is output from the remocon code storing unit to drive the infrared ray signal emitting portion, and an output of the infrared ray signal emitting portion is received by a remocon light receiving portion of the external picture recording apparatus, thereby enabling the picture recording reserve in the external picture recording apparatus to be controlled.

Abstract: A home automation apparatus using a digital television receiver for use in a building is provided. In particular, the apparatus contains a signal processor, a memory unit, a microprocessing unit, a display unit, a sensor input unit, an interface unit, and a controller. The signal processor inputs a television signal and processes the television signal to produce a processed signal. The memory unit stores the television signal and the processed signal based on control signals from the microprocessing unit, and the display unit displays the processed signal as an image. In addition, the sensor input unit is connected to a first sensor, detects a first status of the first sensor, and outputs first sensing data which relates to the first status. Furthermore, the first status relates to a first state of the building, and the first sensing data is output to the microprocessing unit.

Abstract: When the time is to be set to a clock in a video tape recorder (VTR) utilizing time information that is interpolated in a broadcasting signal, a broadcasting station for this time setting can easily be selected by using broadcasting station tables containing identification codes of broadcasting stations which transmit time information of the areas (countries) separately for each area. A microprocessor in the VTR successively searches broadcasting stations and selects the broadcasting station which has the broadcasting station identification code contained in its broadcasting station tables in VPS or Teletext as the broadcasting station desired for time setting. Not only are the broadcasting station identification codes to be stored in memory but also a priority order may be stored in the broadcasting tables to enable the selection of a broadcasting station having the highest priority from among the received broadcasting station identification codes as the determined broadcasting station for time setting.

Abstract: The preferred embodiment of the present invention provides a method and system for resizing subtitles of a video without resizing the video image itself. The preferred embodiment is typically user initiated. First, a user requests a video from a server. The server transmits two data streams, a video/audio (hereinafter referred to as "video") data stream and a text data stream, over the network to the client computer. The client receives and sends both data streams to a viewer program (e.g., a browser). The browser combines the two data streams into a single window as seen by the user.Since the video and subtitles are sent as two separate streams of information, upon user request the browser is able to resize the subtitles and the subtitle viewing area independently from resizing the video image. The browser resizes the subtitles by rendering the subtitles in a user selected font size.

Abstract: Encoded data storage devices with stored data corresponding to: (a) information for coaching a user in accomplishing one or more steps of a specified task in a learn-then-perform way, and (b) an instruction set which enables the user access to access the information on a user-selected step of the task. Methods of providing and employing encoded data storage devices of the character just described.

Abstract: An improved system for the integration of off-air and satellite TV tuners in a direct broadcast system, comprising a source of an RF television signal, a TV tuner coupled to the RF signal source for demodulating the RF signal and producing baseband video and audio signals, a satellite antenna for receiving a data stream including direct broadcast satellite signals, a direct broadcast satellite tuner coupled to the satellite antenna for converting and demodulating the incoming signals to video and audio baseband output signals. An electronic program guide is included as part of the data stream received along with the direct broadcast satellite signals. A microprocessor is coupled to the direct broadcast satellite tuner for conditioning the electronic program guide.

Abstract: A device for storing picture information, in particular a code displayed on a part of the area of a monitor comprising a storage medium of photosensitive material which can be secured on the monitor surface by means of an adhesion layer effective at the monitor side, wherein the photosensitive material is applied onto an areal carrier medium and is there active at the monitor side only in specific regions spaced apart from one another. Furthermore, the invention relates to a method for the technical transmission of a code.

Abstract: A method of behavior modification involves having a patient view supraliminal video messages superimposed upon an underlying video presentation. The video messages incorporate messages wherein at least some of the messages link a desired modified behavior to positive feelings of the patient. A supraliminal message generator and superimposer iteratively selects individual messages for display from the sequence of messages, decompressing the messages as required, and places the selected messages in a buffer memory of a video generation device. A processor of the supraliminal message generator and superimposer then fades the selected message from an invisible level to a visible level on the video display, and then fades the selected message from the visible level back to the invisible level.

Abstract: Allows a video broadcast viewer to pause at anytime while viewing a program, and upon returning to be able to view the intervening segment. The video received during the pause period is stored and available for recall upon user command. The storage medium is circular in so much that the memory, upon becoming filled to capacity continues to write incoming information data over the previously stored data. The storage circuits employs a sequential access storage device and/or a direct access storage device. The storage circuit has a high speed memory input buffer and a high speed memory output buffer to account for the relatively long READ and WRITE access times of the storage device employed. At the end of the pause period, the user can view the stored video. The user has a choice between catching up to the regular broadcast or watching the remaining program video in a delay mode.

Abstract: An audio/visual apparatus which is made in such a constitution that the video or audio parameters which usually do not require frequent readjustment by users are, once adjusted and set, fixed and excluded from the parameter setting cycle. This operation of excluding parameters is carried out through remote control operation by means of a remote controller. Parameters to be excluded from the setting cycle are freely selected by users. Excluded parameters can be restored to the setting cycle through users' operation.

Abstract: A password (PW) restriction apparatus for cable television (CT) channels having a downward receiving signal controller (DRSC) for receiving a downward receiving signal output from a cable television transmitting/receiving portion (CTTRP) and transmitting digital signals to control the generation of video and audio (V and A) signals; a television/audio decoder (TAD) for decoding the digital signals to generate V and A; a central processing unit (CPU) for processing (PW) for enabling a user to at least select one of changing a password channel (PWC) and processing a new PW from the CTTRP; an upward transmitting signal controller for multiplexing a user-controlled signal and maintenance signal output from the CPU and transmitting the multiplexed signals to the CTTRP; an on-screen display controller for generating a user-controlled screen (UCS) on a user television screen and transmitting the generated USC to the TAD; a user-operated key pad for generating password channel selection (PWCS) and password channel re

Abstract: Encoded data storage devices with stored data corresponding to: (a) information for coaching a user in accomplishing one or more steps of a specified task in a learn-then-perform way, and (b) an instruction set which enables the user access to access the information on a user-selected step of the task. Methods of providing and employing encoded data storage devices of the character just described.

Abstract: A double/wide television set incorporated with a double-deck VCR or a CD system is provided with a simplified method of selecting an input/output source. The method uses a matrix screen which is inserted into a basic screen of a master On-Screen Display generator. The user selects the input/output source from the matrix screen. Selection from the matrix is accomplished either by depressing numeral buttons of a selection key pad, such as on a remote control, or through a cursor that is displayed on the matrix screen and then moved about the matrix by the user using buttons of the keypad.

Abstract: Systems (or appliances) which have a learn-then-perform mode of operation. Information is stored in digital form by a data storage device and is retrieved for presentation by: (a) navigating through a hierarchial array of multiple choice menus, or (b) directly and in one fast step by employing identifier codes associated on a one-to-one basis with retrievable items of information. Identifying codes may be obtained as needed from a directory in which each code is associated with a descriptor of the corresponding item of information.

Abstract: A picture receiving apparatus wherein a received video signal is converted into digital video data which is further compressed before being recorded on a minidisk set in a disk mounting unit along with caption information superimposed on the video signal and index information is recorded. A remote commander is used to select a desired item from index information displayed on a display screen. Pictures of the selected item are displayed on a child screen and caption information associated with the pictures is displayed in a caption display area.

Abstract: An interface system for a television receiver includes an interface connector having a plurality contacts connected to various component circuits in the television receiver. In order to provide various functions for the television receiver, the interface system includes various circuit boards each having a plug connectable with the interface connector. The plug includes a number of contacts equal to or less than the plurality of contacts in the interface connector. Depending on the desired function, the circuit board further includes circuits for providing the function, these circuits being interconnected and connected to the appropriate contacts in the plug for connecting with the appropriate component circuits in the television receiver. The interface system allows the television receiver functions to be modified and/or updated without the need for opening the television and modifying the circuits and/or the wiring to the circuits.

Abstract: Systems which have an integrated unit that allows both television signals and information retrieved from an onboard information storage device to be presented in visual, audio, or visual/audio form via output devices such as television screens and audio speakers. The operating mode--television or stored information retrieval and display--is selected by the user. The user is coached through steps leading to retrieval and presentation of the wanted information if the information retrieval mode is selected. A novel remote control allows the system user to choose the mode of operation and to navigate the steps needed to reach the wanted information from a location convenient to the user.

Abstract: A satellite video receiver (12) for providing output signals to a television signal receiver (52) includes apparatus (10, 15, 16, 20, 45, 60, 65, 70) for operator selection of the modulator output channel frequency of the satellite receiver. The operator may select a modulator main channel, or an alternative manufacturer pre-set modulator default channel. In a first recovery mode, the operator may automatically replace an existing modulator channel with a manufacturer pre-set default channel, e.g., if a chosen main channel is forgotten. In another recovery mode, the operator may automatically re-establish a previously selected modulator main channel recalled from memory.

Abstract: An electronic program guide device includes a demultiplexer for filtering a multiplexed bit stream transmitted through a transmission channel with respect to a selected channel and separating the filtered multiplexed bit stream into a video stream and an audio stream; a controlling part coupled to the demultiplexer for extracting electronic program guide information from the multiplexed bit stream and storing the extracted electronic program guide information in a memory; a video processing part coupled to the demultiplexer and the controlling part for decompressing the video stream from the demultiplexer to restore an original image, synthesizing the original image and the electronic program guide information, and displaying the synthesized original image and the electronic program guide information on a screen; an audio processing part coupled to the demultiplexer for decompressing the audio stream from the demultiplexer; a voice source processing part coupled to the controlling part for vocally synthesizin

Abstract: A system that displays text and graphic information with vertical blanking interval of a publicly broadcasted video signal. The system also includes a personal computer that has a VBI decoder which can separate the data from the video signal. The separated data contains command and address information, which instruct the personal computer to retrieve text/graphic information from a storage device, and display the retrieved text/graphic information on a computer monitor. The personal computer also contains a NTSC decoder which can decode the video signal and display a television image on the computer monitor. The broadcaster inserts data that retrieves text and graphic information which correspond to the television image displayed by the computer monitor. The retrieved text and graphic information may be stored for later viewing by the user.

Abstract: Systems which have an integrated unit that allows both television signals and information retrieved from an onboard information storage device to be presented in visual, audio, or visual/audio form via output devices such as television screens and audio speakers. The operating mode--television or stored information retrieval and display--is selected by the user. The user is coached through steps leading to retrieval and presentation of the wanted information if the information retrieval mode is selected. A novel remote control allows the system user to choose the mode of operation and to navigate the steps needed to reach the wanted information from a location convenient to the user.

Abstract: A television set having an .alpha.-wave generation function includes a user key input portion, an .alpha.-wave generator, a sound producer, a first switch for selectively applying the .alpha.-wave generated by the .alpha.-wave generator to the sound producer and a controller for controlling an on/off operation of the first switch in response to a user input via the key input portion, to thereby enable a user to select the .alpha.-wave generation in the television set. Through a second switch for selectively applying an audio signal to the sound producer and a third switch for selectively supplying a video signal to a cathode ray tube of the television set, the user can control the .alpha.-wave generation simultaneously or independently from the audio and video signals.

Abstract: A video signal identifier ("VSI") electrically coupled to both a VCR and a television to control their operation. The VSI memorizes commercials then automatically controls the television and video cassette recorder upon identifying a re-occurrence of the commercial. The VSI automatically mutes then restores volume on a television or pauses then resumes VCR recording at the beginning and end of a commercial.

Abstract: A television channel display comprises remote controller signal receiver for receiving a channel number determined by a user, an MCU for receiving a signal output from the remote controller signal receiver, a memory for storing and outputting audio signals of the channel number and a broadcasting station name according to a control signal output from the MCU, an audio mixer for mixing the audio signal of the channel number and the broadcasting station name output from the memory, an aural processor for processing audio signals of an input broadcasting program, a multiplexer for selecting and outputting the audio signals of the audio mixer and the aural processor under a control of the MCU, and a speaker for converting and outputting audio current outputs from the multiplexer into an audio signal.

Abstract: A video receiver including an interface to which compressed and encoded video-audio data is supplied from a transmission line and stored in the receiver, a decoder for decoding the video-audio data retrieved from storage, a monitor for connecting to the decoder and a CPU for controlling data processing. A common buffer memory for temporarily storing the video-audio data is provided between the interface and the decoder and between the interface and the storage device and, while the video-audio data is being received, access to the buffer memory is subjected to time-shared, exclusive control by the CPU in synchronism with the clock frequency of the transmission line, whereby video data is read out of the buffer memory by the decoder in parallel with the storage of the video-audio data, and is thereby decoded so that a picture is viewed on the monitor.

Abstract: An apparatus for providing described television services includes a computer for receiving and storing description data corresponding to an audiovisual program; an encoder for encoding the description data into a program signal corresponding to the audiovisual program; and a receiver which receives the encoded program signal and extracting the description data from the encoded program signal. A text-to-speech converter converts the description data into a speech signal corresponding to the description data, and a speaker provides the speech signal to a viewer. Similarly, a method for providing described television services includes the steps of generating description data corresponding to an audiovisual program; encoding the description data into a program signal of the audiovisual program; and decoding the encoded program signal, whereby the description data is extracted from said encoded program signal.

Abstract: Digital information is encoded in the video portion of a television signal such that "n" (n is an integer) bits of the digital information are carried by each successive frame in a group of frames. The digital information is encoded by modulating a carrier signal, using, for example, either amplitude shift keying (ASK) or frequency shift keying (FSK), and the modulated carrier is then added to the video signal selectively, only in portions of the television program that (a) are not likely to be perceptible by a viewer, and (b) are of sufficient intensity to transmit the data. The video signal including the encoded digital data, may be transmitted, in real time, to a television receiver, or recorded for later playback.

Abstract: A notification system for television receivers including a visible alarm and/or an audible alarm that is activated when a certain event occurs. An information signal is extracted from a received television signal and is processed to determine the status of an event. If it is determined that the event occurred, then a control signal is sent to the appropriate alarm to activate that alarm, thereby notifying the user of the event's occurrence. The event may include the reception of a text or graphic message, the televising of a certain television program, and the televising of a television program with a specific program rating. The user may also deactivate the alarm. A personal identification number may be used to restrict access to certain features of the notification system.

Abstract: A compact-disk-player-incorporated television receiver includes; in a single case, a television signal receiver for receiving a tuned television signal and detecting video and audio signals from the received signal and outputting the same, a compact disk player having a song accompaniment function for receiving a first control signal input as data and a second control signal input via an instruction input unit, reading data from at least one type of compact disk if the two control signals are identical, and then outputting video and audio signals, a video signal processor for selectively receiving and signal-processing a video signal from the television signal receiver or a video signal from the compact disk player and displaying the processed signal via a display, an audio signal processor for selectively receiving and signal-processing an audio signal of the television signal receiver or an audio signal of the compact disk player and displaying the processed signal via a sound converter, a power source for

Abstract: A direct broadcast satellite sends subscribers signals received from an earth-station transmitter and typically having a 10 MHz bandwidth, 6 MHz for an analog video station and 4 MHz for up to 24 digital audio stations. When a subscriber selects one of the audio stations, an FM demodulator recovers the 10 MHz signal; a variable gain amplifier amplifies the received signal; and an A/D converter digitizes the amplified signal at (e.g.) 24.576 MHz. A digital synthesizer produces trigonometric functions (sine, cosine) at (e.g.) 24.576 MHz, and mixers downconvert the signals to baseband. The sampling frequency is then reduced to 256 KHz, twice the digital audio signal baud rate. In response to the 256 KHz signals, a first servo varies a VCO frequency to obtain a regulation by the A/D converter of the digitizing frequency at 24.576 MHz and another servo regulates the frequency of the trigonometric functions.

Abstract: A method and apparatus for searching a program guide comprising program information for a plurality of different program sources. The program information includes the titles of the programs, the channel on which each program is to be shown, and the time at which each program is to be shown. The viewer first enters the title of a desired program. The program guide is then reviewed so as to identify each occurrence of the title of the desired program. If the desired program is contained in the guide, the time and channel associated with each identified occurrence of the program is displayed.

Abstract: An interface system for a television receiver includes an interface connector having a plurality contacts connected to various component circuits in the television receiver. In order to provide various functions for the television receiver, the interface system includes various circuit boards each having a plug connectable with the interface connector. The plug includes a number of contacts equal to or less than the plurality of contacts in the interface connector. Depending on the desired function, the circuit board further includes circuits for providing the function, these circuits being interconnected and connected to the appropriate contacts in the plug for connecting with the appropriate component circuits in the television receiver. The interface system allows the television receiver functions to be modified and/or updated without the need for opening the television and modifying the circuits and/or the wiring to the circuits.

Abstract: A system for processing a television signal including a data component, such as extended data services data, includes a decoder for processing the data component to provide data representing time information. A control device responds to the data for modifying time information, e.g., time of day, that is maintained in the system. The time information decoded from the video signal is compared to the time information maintained in the system to determine a time difference. If the time difference is in a predetermined range, the time difference indicates that the time information from the television signal is invalid. The control device responds to the time difference being in the predetermined range by preventing modification of the time information maintained in the system. A user may provide an input via a device such as a remote control to control the manner in which the control device responds to the time difference.

Abstract: The apparatus for receiving a message from a central transmitter with a television receiver includes a tunable radio receiver for radio signals including an encoded message transmitted from a central radio transmitter which is separate from the television receiver; a decoder for producing a decoded message signal from the received radio signal; a memory connected with the decoder for storing the decoded message signal; a signalling device advantageously including an LED for signalling the presence of the decoded message signal in memory; a converter for converting the decoded message signal to a video message signal; an RF modulator for producing a TV message signal from the video message signal and a television receiver with a television screen on which a visual message derived from the TV message signal is displayed.

Abstract: An interface system for a television receiver includes an interface connector having a plurality contacts connected to various component circuits in the television receiver. In order to provide various functions for the television receiver, the interface system includes various circuit boards each having a plug connectable with the interface connector. The plug includes a number of contacts equal to or less than the plurality of contacts in the interface connector. Depending on the desired function, the circuit board further includes circuits for providing the function, these circuits being interconnected and connected to the appropriate contacts in the plug for connecting with the appropriate component circuits in the television receiver. The interface system allows the television receiver functions to be modified and/or updated without the need for opening the television and modifying the circuits and/or the wiring to the circuits.

Abstract: An input image signal is converted along a time base into an image signal having an aspect ratio different from that of the input image signal. An image corresponding to the converted image signal is supplied to an image display unit, thereby faithfully displaying an image corresponding to the input image signal without degrading the image quality.

Abstract: An interface system for a television receiver includes an interface connector having a plurality contacts connected to various component circuits in the television receiver. In order to provide various functions for the television receiver, the interface system includes various circuit boards each having a plug connectable with the interface connector. The plug includes a number of contacts equal to or less than the plurality of contacts in the interface connector. Depending on the desired function, the circuit board further includes circuits for providing the function, these circuits being interconnected and connected to the appropriate contacts in the plug for connecting with the appropriate component circuits in the television receiver. The interface system allows the television receiver functions to be modified and/or updated without the need for opening the television and modifying the circuits and/or the wiring to the circuits.