Abstract: A synchronous signal/active signal restoring apparatus and method are disclosed in which a display device receives a digital image signal transmitted in an optical signal form from a source device through an optical cable, a physical medium which can not transmit a clock signal, and restores a horizontal/vertical synchronous signal and a horizontal/vertical active signal.

Abstract: Disclosed is a serial data conversion apparatus comprising: a video signal packet conversion unit for converting a characteristic signal of a video signal into a video signal characteristic packet and simultaneously converting a video signal into a video signal packet by the characteristic signal of a video signal, horizontal/vertical synchronization signals, and a video clock signal; an audio signal packet conversion unit for converting a characteristic signal of an audio signal into an audio signal characteristic packet and simultaneously converting an audio signal into an audio signal packet by the characteristic signal of an audio signal, left/right control signals, and an audio clock signal; a control signal packet conversion unit for converting a control signal into a control signal packet by an informing signal which informs a generation of a control signal; and a multiplexer for switching and selecting the video signal characteristic packet, the video signal packet, the audio signal characteristic pac

Abstract: A digital TV and a driving method thereof enable a user to view the digital TV without interruption even if the present operating system is in an abnormal state. The digital TV includes a digital TV receiving part for receiving and decoding a broadcasting stream from an outside, a host CPU for controlling the digital TV receiving part, a local CPU for controlling the digital TV receiving part if the host CPU operates in an abnormal state, and a programmable logic device for switching the control of the digital TV receiving part from the host CPU to the local CPU if the host CPU operates in the abnormal state.

Abstract: A signal transmission method and apparatus provides a digital transmission path and an analog transmission path between a signal output apparatus and a signal input apparatus. An audio/video signal is transmitted from the signal output apparatus to the signal input apparatus over the digital transmission path. When a user requests an on screen display (OSD) from the signal output apparatus, a controlling unit of the signal output apparatus judges a volume of the data to be displayed via the OSD. If the volume exceeds a preset limit, the OSD is transmitted to the signal input apparatus over the analog transmission path. If the volume does not exceed the preset limit, the OSD is transmitted to the signal input apparatus over the digital transmission path. The controlling unit of the signal output apparatus informs a controlling unit of the signal input apparatus of the intended path of the OSD, so that the signal input apparatus can process the OSD in the appropriate manner.

Abstract: An apparatus and method of transferring a transmission stream in a digital interface which inserts the program number selected by a user into a predetermined region of the MPEG2-TS if a multi-program is included in a channel, and transmits the MPEG2-TS including the selected program number through the digital interface to record and reproduce the MPEG2-TS. The apparatus includes a transmitting device for transmitting an input stream, a receiving device for recording and reproducing the stream, a TP demultiplexer for demultiplexing a multi-program from the input stream or a reproduced program, a recording section for recording program information selected by the user in a specified region of the demultiplexed stream, and a control section for controlling an operation of the recording section. The multi-program is transmitted to the receiving device through the digital interface, and a program selected by the user from the multi-program is selected by the receiving section.

Abstract: A digital TV and a driving method thereof enable a user to view the digital TV without interruption even if the present operating system is in an abnormal state. The digital TV includes a digital TV receiving part for receiving and decoding a broadcasting stream from an outside, a host CPU for controlling the digital TV receiving part, a local CPU for controlling the digital TV receiving part if the host CPU operates in an abnormal state, and a programmable logic device for switching the control of the digital TV receiving part from the host CPU to the local CPU if the host CPU operates in the abnormal state.

Abstract: A synchronous signal/active signal restoring apparatus and method are disclosed in which a display device receives a digital image signal transmitted in an optical signal form from a source device through an optical cable, a physical medium which can not transmit a clock signal, and restores a horizontal/vertical synchronous signal and a horizontal/vertical active signal.

Abstract: Disclosed is a serial data conversion apparatus comprising: a video signal packet conversion unit for converting a characteristic signal of a video signal into a video signal characteristic packet and simultaneously converting a video signal into a video signal packet by the characteristic signal of a video signal, horizontal/vertical synchronization signals, and a video clock signal; an audio signal packet conversion unit for converting a characteristic signal of an audio signal into an audio signal characteristic packet and simultaneously converting an audio signal into an audio signal packet by the characteristic signal of an audio signal, left/right control signals, and an audio clock signal; a control signal packet conversion unit for converting a control signal into a control signal packet by an informing signal which informs a generation of a control signal; and a multiplexer for switching and selecting the video signal characteristic packet, the video signal packet, the audio signal characteristic pac

Abstract: A signal transmission method and apparatus is to provide results of user inputs such as changing setting of appliances transmitting digital AV contents as real-time and by a more precise method. To achieve the object, there is provided a method for transmitting the digital AV contents and OSD by connecting a signal output apparatus 100 and a signal input apparatus 200 comprising a process of identifying whether OSD display mode is set or not, a process of judging whether the volume of OSD is larger than a certain volume if the OSD display mode is set, and a process of transmitting the OSD through an analog connect if the volume of the OSD is larger than a certain volume.

Abstract: The present invention relates to a method of menu-based control of an external device connected to a digital audio/video apparatus. According to the present invention, a main menu is displayed including menu items for selecting functions or operations of the external device and a menu item for obtaining a detailed menu of the external device, the main menu image being stored in a memory of the audio/video apparatus. When one of the menu items associated with the functions or operations is selected, command data corresponding to the selected menu item are transmitted to have the external device perform the corresponding operation. When a menu item for obtaining the detailed menu of the external device is chosen, a menu image of the detailed menu is read out from the memory and is then displayed. Information provided by the external device is requested from the detailed menu.

Abstract: The present invention relates to a method of menu-driven control of an external device connected to a digital audio/video apparatus. According to this invention, in response to user's request of a menu image for the external device, a menu image is displayed on a display of the digital audio/video apparatus, menu image including menu items associated with operations of the external device and menu items associated with the request of an image of the detailed menu of the external device. When a menu item for operations of the external device is selected, a command is transmitted to the external device to have the external device perform the desired operation. When a menu item associated with the request of the detailed menu image is chosen, the menu image is received from the external device and is then displayed on the display of the digital audio/video apparatus.

Abstract: The present invention relates to a method of menu-based control of external devices connected to a digital audio/video apparatus. According to this invention, in response to user's request of a menu for selection of the external devices that have been connected to the digital audio/video apparatus, a menu image is displayed on the digital audio/video apparatus, each menu item corresponding to each of the connected external device. When one of the external devices is selected from the menu, a menu image including menu items for executing operations of the selected external device is requested and displayed on the digital audio/video apparatus. The operations of the selected external device can be selected and executed from the menu. This invention allows a user to conveniently, centrally examine and execute various operations or functions of external devices such as a DVD player that are connected to a central digital audio/video apparatus without the direct access to the external devices.