KR970004289B1 - Interactive compact disc device with function of video tape - Google Patents

Abstract

The menu of various information to be offerable from relevant CD-i and to contain video tape drive function is outputted on monitor(14) by driving instruction from input unit offered with the mediation of user-interface(13). On the basis of this screen output, user selects menu through user-interface(13) by mouse or remote control. If selected menu is the input for the audio signal and video signal recorded in CD or CD-i disk(11), CPU(21) practices the driving of CD-i on the basis of the operating system saved in unvolatile RAM(23). CD control part(25) drives CD player(10) to read the information of menu selected from CD or CD-i disk(11).

Description

Interactive compact disc device with videotape drive

1 is a schematic block diagram of an interactive compact disc apparatus having a videotape drive function according to the present invention;

2 is an internal block diagram of a base apparatus (CD-i decoder) provided in an interactive compact disc having a videotape drive function shown in FIG.

FIG. 3 is a diagram for explaining the operating system of the CD-i device including the videotape drive function provided in the interactive compact disc device shown in FIG.

* Description of the symbols for the main parts of the drawings *

10: CD player 11: disc

12: base unit (CD-i decoder) 13: user interface

14 monitor 21 CPU

23: non-volatile RAM 25: CD control unit

26: decoder 28: video decoder

41: kernel

The present invention relates to an interactive compact disc device having a videotape drive function, and more particularly, to a video of a video tape in an interactive compact disc device which provides various information in a menu method under the support of a GUI (Graphic User Interface) environment. The present invention relates to an interactive compact disc device having a videotape drive function for processing videotape information with compatibility between a signal and an audio signal.

At present, research on adding a function as an audio / video medium for screen output of image information on a compact disc in which audio information is carried out has been conducted. CD-interactive (hereinafter referred to as CD-i device).

According to such a CD-i apparatus, it is possible to support audio signals and natural images not handled by a computer, and the audio signals and natural image data are recorded in block units of CD-i. From this point of view, a wide range of application fields are considered for CD-i devices, while the menu-based selection function is provided to the user for block data for each application area. Because of its simple operation, it is attracting attention as a multimedia suitable for home and education. Examples of application of such a CD-i device include entertainment and leisure, music playback by still images and subtitle processing, various kinds of games, travel guides, animations, and the like. Dictionaries, encyclopedias, family medicine books, home study, mail order catalogues, telephone notebooks, etc. are also included, and the vehicle includes a navigation map or traffic information.

In general, CD-i devices play base devices or CD-i decoders and compact discs (CDs) or CD-i discs, so-called 'Green Books', which control the overall operation for the provision of various information. CD player for display, display device (monitor) for outputting information processed by the base unit, user interface such as mouse or joystick, or remote control for taking menu type information displayed on the display unit, base unit And an audio amplifier for amplifying the audio signal provided by the audio amplifier and a voice output device for reproducing the signal amplified by the audio amplifier.

In addition, the base unit (CD-i decoder) of the CD-i device is equipped with a function for processing video signals and audio signals required for various application fields, and an operating system for processing such video signals and audio signals. Is programmed and stored in a non-valitable read-only memory constituting the base device. Therefore, in such a CD-i device, as described above, various applications are possible from music to electronic publishing, and thus development of application fields is expected.

On the other hand, for a video tape known as a recording medium for a video signal and an audio signal, information recorded on the video tape is recorded in series, and therefore a random access function for information recorded at an arbitrary position is required. For example, compatibility with a computer or the like becomes impossible.

Therefore, even in a CD-i device developed as a video / audio medium as described above, support for reproducing information is possible for a hard disk, which is an information recording medium of the same type that can be randomly accessed in addition to a CD or a CD-i disk. In other words, the video tape information is not compatible with the video tape.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances. For a CD-i device as a multimedia capable of providing various information, random access is applied to a hard disk installed in the CD-i device in the form of information recorded on a videotape under a GUI environment. It has a videotape drive function that makes it possible to store the video tape drive compatible with the videotape drive by adding a system for the videotape drive to the operating system of the CD-i device. Its purpose is to provide an interactive compact disc device.

In order to achieve the above object, according to the present invention, equipped with a base unit (CD-i decoder) capable of processing audio and video information for a variety of application fields is selected in the menu method in the application field with the support of GUI environment In an interactive compact disc apparatus (CD-i apparatus) configured to be capable of providing information, the base apparatus includes a tape for decoding / encoding audio signals and video signals from video tapes reproduced by a video tape reproducing apparatus. There is provided an interactive compact disc apparatus having a video tape drive function comprising a signal processing section and a data storage section for storing information from video tapes processed by the tape signal processing section.

Preferably, according to the present invention, the execution system included in the base apparatus includes a file management level for reproducing the audio signal and the video signal from the video tape and the reception of the audio signal and the video signal from the video tape by the file. And a level for allocating a driving level for driving the device for the device and for allocating the audio and video signal processing devices from the video tape. In addition, a function for designating playback from the videotape is output on the monitor in a menu manner.

The tape signal processing unit comprises an analog / digital converter for sampling the signal from the video tape at a sampling rate of 16 bits, and the data storage unit for storing information from the video tape. And a hard disk having a data storage amount corresponding to the information reproduction time from the videotape.

According to the interactive compact disc apparatus (CD-i apparatus) having a video tape drive function according to the present invention configured as described above, the hard disk is provided by digitally converting the playback signal from the video tape to the base apparatus constituting the CD-i apparatus. It is possible to supply a variety of audio information and video information by designing a tape signal processing system to be stored in the system.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a block diagram of an interactive compact disc device (CD-i device) having a videotape drive function to which the present invention is applied, where 10 is audio information / video from a CD or CD-i disc 11; A CD player for reproducing information, and 12 is a base device or CD-i decoder for processing information reproduced from the CD or CD-i device 11 by the CD player 10, and in the CD-i device. It is responsible for the selection function by the menu method and the control of the information processing on the selected menu for the various information provided.

13 denotes a user interface for interfacing with an input device such as a mouse, a joystick, a remote control, or the like, which is assigned to a user to enable operations such as selection of a menu for information provided by the base device 12. 14 denotes screen output of information provided from the base apparatus 12 in response to an input such as selecting a drive of a video tape inputted through a user interface 13 from an input apparatus such as a mouse. It is a monitor.

15 is an amplifying unit which amplifies the audio information processed by the base unit 12 and provides the audio output device (speakers) 16 and 17 of the left (L) and right (R) channels to be reproduced. Is a videotape drive apparatus for driving a videotape installed in accordance with the present invention, and the base apparatus 12 is operated in order to process a signal from a videotape provided and reproduced by the videotape drive apparatus 18. The signal from the videotape reproduced and inputted by the videotape drive device 18 in response to the selection of the videotape drive function from the input device input through the user interface 13 while operating based on the system is input. For example, a signal processing device 12a for encoding at a sampling rate of 16 bits is provided, and the video processed by the signal processing device 12a is provided. A data storage unit (12b) for storing a signal from the tape is provided. Here, the signal processing apparatus 12a is sensitive to the change in the intensity of light around the human eye's vision, but is insensitive to the change in color intensity. It consists of an analog / digital converter employing a YUN encoding method for encoding a video signal by applying a feature that is not included much, and the data storage unit 12b regards the normal playback time of the video tape as 2 hours. It consists of a hard disk having an information recording amount (approximately 1 GB) corresponding to the playback time of the video tape.

According to the CD-i device configured as described above, the menu of various information that can be provided by the base device 12 includes a selection item for information from the video tape reproduced and inputted by the video tape drive device 18, From the menu displayed on the monitor 14 for such a videotape drive function, an input device such as a mouse or a remote control is used for selection via the user interface 13 for the menu for the displayed videotape drive function.

More specifically, the video tape drive device 18 is connected to the base device 12, and the continuous playback signal reproduced and inputted by the video tape drive device 18 to the base device 12. Is stored in a signal processing device 12a for encoding a function according to a function selection from an input device and the video tape processed by the signal processing device 12a for random access. ) And add a function related to the videotape drive to the menu displayed on the monitor 14 from the base device 12 so as to be selected by the input device through the user interface 13. In addition, the function of such a videotape drive is determined from a videotape in response to a menu selection for a videotape drive from an input device in a compact disc real-time operating system (CDRTOS) built in the base unit 12. Adds a system call to handle the signal processing function as a block unit, and modifies the videotape drive function at the file management level, device drive level, and device descriptor level of the operating system. In addition, you will write a system application.

Thus, such a configuration makes it possible to select a signal from the videotape input from the videotape drive device 18 by an input device through the user interface 13 and to design the videotape drive designed in the base device 12. The video signal from the video tape processed by the function is output on the monitor 14 and the audio signal is amplified by the amplifier 15 and reproduced through the left and right channel speakers 6 and 17.

FIG. 2 is a block diagram illustrating a processing system of a video signal and an audio signal including the function of a videotape drive in the base apparatus (i.e., CD-i decoder) 12 shown in FIG. 12) shows a central processing unit (CPU) 21 for controlling the overall operation of the CD-i device and a system ROM (SYSROM) 22 storing a program for the operation of the CD-i device. A nonvolatile RAM (NVRAM) 23 storing a CD-i operating system (CDRTOS) and a clock generator 24 for generating a system clock of the CD-i device are provided. The base apparatus 12 also has a CD controller 25 for controlling the CD player 10 for reproducing the CD or CD-i disc 11 shown in FIG. 1 and the control of the CD controller 25. FIG. Decoder 26 which decodes the audio information and / or video information from the CD or CD-i disc 11 reproduced by the CD player 10 under the ADPCM (Adaptive Delta Pulse Code Modulation) method. And a digital-to-analog converter (DAC) 27 for converting the audio signal decoded by the decoder 26 into an analog signal to be reproduced through the speakers 16 and 17 of FIG. 1. The CD player 10 A video decoder (System Decoder / System Controller) 28 and a plurality of DRAMs 29 for processing a video signal reproduced from the CD or CD-i disc 11 to be output to the monitor 14 of FIG. 30). In addition, a signal processing device composed of an analog / digital converter having a sampling rate of, for example, 16 bits for encoding a signal from a video tape reproduced and applied by the video tape drive device 18 shown in FIG. 12a) and a data storage unit 12b constituted by a hard disk for storing signals from the videotape processed by the signal processing apparatus 12a.

3 is a diagram illustrating an operating system including a videotape drive function provided in the nonvolatile RAM 23. The shell generates internal commands in response to an input from an input device through a user interface 13. (Shell; 40), Kernel (41) responsible for managing calls to the system, I / O control and interrupt management, etc., and directories of the operating system that are programmatically connected to the Kernel (41). A file management level 42 representing a program for management, a device drive level 43 and a device descriptor level 44 to which a peripheral device connected to the CD-i device is connected; and the file management level 42 For example, the pipe function management level (PIPE M) in charge of control for parallel processing of information, the network management level (NET M) for information exchange, A disk management level (DISC M) for driving control of a hard disk and a floppy disk, a video tape drive management level (VTD M) for controlling a video tape drive function according to the present invention, and the like, and the device drive level 43 Is configured to drive a pipe function processing system (PIPE D), a communication network system (NET D), a disk drive system (DISC D), a video tape drive system (VTD D), etc. under the management of the file management level 42. The device descriptor level 44 is configured to carry out the actual driving of the device by means of the device drive level 44. For the videotape drive function according to the present invention, a videotape drive input from an input device. The function is transferred to the videotape drive management level (VTD M) and its lower level through the kernel (41). By the video tape drive device 18, the signal processing device 12a and the data storage unit 12b as it is transmitted to the device drive level 44 for the video tape drive via the tape drive system VTD D. Processing of the video tape signal is performed.

Next, an operation of the interactive compact disc apparatus having the broadcast signal receiving function according to the present invention configured as described above will be described.

First, a corresponding CD-containing video tape drive function is provided on the monitor 14 under the control of the CPU 21 constituting the base apparatus 12 by a start command from the input apparatus provided via the user interface 13. When a menu of various information that can be provided by the device is outputted, and a user selects a menu through the user interface 13 by a mouse or a remote control based on such output, the selected menu is displayed on the CD or CD-. In the case of an input related to a video signal and an audio signal recorded on the disk 11, the CPU 21 stores the file management level 42 and the device based on the operating system shown in FIG. 3 stored in the nonvolatile RAM 23. The CD-i device included in the drive level 43 and the device descriptor level 44 is driven. In this case, the CD player 10 is used to construct the CD player 10. The information of the selected menu from the CD or the CD-i disk 11 is read.

The audio signal of the read out information is applied from the CD control unit 25 to the decoder 26, decoded by the ADPCM method, and then converted into an analog signal by the digital-analog converter 27, and the analog converted audio signal is left. Playback is output through the right channel speakers 16 and 17.

Then, the video information read from the CD or CD-i disk 11 is reproduced by the video decoder 26 through the CD control unit 25 and processed as a composite video signal and then output to the monitor 14.

On the other hand, if the input from the user interface 13 is a menu for receiving a broadcast signal (eg, 'VTD') is selected, the CPU 21 for the broadcast signal received from the videotape drive device 18. Sets the level of the videotape drive at the file management level 42 and the device drive level 43 and the device descriptor level 44 constituting the operating system inherent in the nonvolatile RAM 23, and then the video. Based on the operating system for the tape drive, a signal from the videotape reproduced by the videotape drive device 18 is applied to the signal processing device 12a for encoding, and the signal from the encoded videotape is It is applied to and stored in the data storage unit 12b having a data storage amount corresponding to the reproduction time. Therefore, the signal from the videotape stored in the data storage 12b can be randomly accessed, while the signal recorded on the videotape can be reproduced interchangeably by the CD-i device.

On the other hand, in the above, the operation of processing the signal from the videotape reproduced by the videotape drive apparatus 18 by the CD-i apparatus has been described, but the signal processing apparatus 12a for encoding the signal from the videotape is digital. The video tape may be used as a data storage medium for backup by being configured as a / analog converter so as to be recorded on the video tape constituted by the video tape drive device 18 from the data storage unit 12b constituted by the hard disk.

As described above, according to the present invention, the video tape drive function is added to the interactive compact disc device so that various types of information can be reproduced by the video tape, thereby extending the range of information provided by the CD-i device. Can be.

Claims (5)

An interactive compact disc device that is equipped with a base unit (CD-i decoder) capable of processing audio and video information for various application fields, and which is capable of providing menu-selected information in the above application fields with the support of a GUI environment. In the CD-i apparatus, a video tape drive apparatus 18 is connected to the base apparatus 12, and the video tape drive apparatus 18 is connected to the base apparatus 12 from the video tape reproduced by the video tape drive apparatus 18. A tape signal processor 12a for decoding / encoding audio and video signals, and a data storage unit 12b for storing information from the video tape processed by the tape signal processor 12a. Interactive compact disc device with videotape drive. 2. The videotape drive function according to claim 1, characterized in that the videotape drive function is output on the monitor (14) to be executed in a menu selection manner by the user and executed upon selection from an input device input through the user interface (13). Interactive compact disc drive with videotape drive capability. The videotape drive function of claim 1, wherein a file management level, a device drive level, and a device descriptor level correspond to a video tape drive function while forming an operating system provided in the base device 12. Is added to control the signal from the video tape encoded by the signal processing apparatus 12a to be stored in the data storage 12b when the video tape drive menu is selected under the control of the base apparatus 12. Interactive compact disc drive with videotape drive capability. The tape signal processing unit (12a) according to claim 1, characterized in that the tape signal processing unit (12a) comprises an analog / digital converter for sampling the signal from the videotape at a sampling rate of 16 bits. Interactive compact disc drive with videotape drive. 2. The interactive apparatus having a videotape drive function according to claim 1, wherein the data storage unit storing information from the videotape comprises a hard disk having a data storage amount corresponding to the information reproduction time from the videotape. Compact disc device.