TWM272332U - Digital video playing device - Google Patents

Description

M272332 IV. Creation Instructions (1) [Technical Field to which the New Type belongs] This creation relates to digital video receiving / playing technology that belongs to the viewing end of digital video system. The TV or LCD screen is combined into a digital video playback device. [Previous technology] As digital video broadcasting has high day quality, high sound quality, and can provide related value-added services derived from data broadcasting, TV broadcasting has gradually changed from the traditional analog system to the digital system. The reason is that in addition to the above-mentioned many features of digital video broadcasting systems, in terms of signal transmission quality, traditional analog systems are more likely to cause poor reception of signals at the viewing end due to the interference of terrain and terrain; in addition, the signals of digital video broadcasting systems It can be transmitted through broadcasting media such as cable, satellite, microwave, and terrestrial. In addition, the spectrum is used more efficiently, so that the viewing end can watch higher picture quality and more programs. In addition, the current video transmission method implemented by the digital television broadcasting system mainly digitizes analog video and then performs video encoding processing, and then chooses to combine with other data information into a single information stream according to the needs of the transmission content, and finally passes the modulator , Converter, and antenna to send this single stream of information ^; therefore, the device used by the viewer to receive digital video basically needs to have signal receiving, decoding / modulation functions in order for the corresponding display screen to show the Digital TV program received. However, the digital television systems seen today are based on display equipment.

Page 5 M272332 IV. Creative Instructions (2) Products with a fixed digital TV receiver tuner or a built-in digital tuner for home use are mostly developed for receiving digital programs transmitted by digital TV systems. Products to replace the traditional analog TV, so no matter its function or form is designed towards the direction of home appliances [new content] In view of the aforementioned problems, this creation of "digital video playback device" will be at least one signal receiver, at least one The TV tuner (TV Tuner), a system control board, and a display screen (Μοοtor) are integrated into a digital video playback device that can operate independently. Among them, the signal receiver mainly receives the digital TV playback system. The signal is then decoded / modulated by the tuner, and the modulated and restored digital signal is transmitted to the display screen through the system control board. In addition, this creative digital video playback device can be used with a battery module to become a mobile digital video playback device. It can even be used with a notebook computer, an analog fixed TV or LCD screen, or The mobile screen is combined into a digital video playback device. Furthermore, through the application of an appropriate signal output interface, this creative digital video playback device can send the obtained digital video to other devices for sharing, which highlights the practicality and applicability of this creative . [Implementation] In order to make your review committee aware of the composition of this creation, and

M272332 IV. Creative Instructions (3) The overall operation mode is described below with reference to the drawings: Please refer to the first figure, which is a block diagram showing the composition of the digital video playback device in the first embodiment of this creative. As shown in the first figure, this creative digital video playback device integrates a signal receiver 1 1, a TV tuner 12, a system control board 13, and a display screen 1 4 into an independently operable digital Video playback device 10, and this digital video playback device 10 can play digital programs transmitted by corresponding digital television playback systems. Among them, the signal receiver 11 is an antenna for receiving a signal from a digital television broadcasting system, and the TV tuner 12 is for decoding / modulating a received + received signal. In a specific implementation, the TV tuner 1 2 is a tuner that is ATSC (American Standard), DVB-T (European Standard), DVB-C or DVB-Η standard in accordance with the currently popular digital TV transmission standards, and has a built-in architecture of the display screen 1 4 As for, the system control board 1 3 is to provide the signal transmission interface (such as the US Β interface) corresponding to the display screen 1 4 (such as the LCD screen) to transfer the modulated and restored digital signal to the ear display screen 1 4 Render. Please refer to the second diagram and the third diagram, which show a block diagram of the composition structure of the digital video playback device in the second embodiment of the present invention and a block diagram of the composition structure of the digital video playback device in the third embodiment. As shown in ¢ 1 of the second figure, under the use of a battery module 20 (a rechargeable battery in this embodiment) power P, the digital video playback device 10 can become a mobile digital video playback device; Furthermore, as shown in the third figure, through the application of an appropriate signal output interface, the digital video playback device of this creation 10

Page 7 M272332 4. Creation instructions (4) The received digital video can be transmitted to other external devices 30 (such as home TV or LCD TV) for sharing. In this embodiment, the signal output interface of this creation is through A / V terminal or S terminal wired transmission structure, and is equipped with a control switch 15 to control the display mode of the signal output, so that users can freely choose the display screen of the digital video playback device 1 0 body 1 4 Or external device 3 0 (such as home TV or LCD TV) to play video, or digital video display device 10 display 14 and external device 30 to play video at the same time. Please refer to the fourth picture, which shows this creation The block diagram of the composition structure of the digital video display device of the fourth embodiment. As shown in the fourth figure, the signal output interface of this creation can also be a wireless transmission structure. It integrates a wireless signal transmitting module 41 and a wireless signal into the digital video playback device 10 and the external device 30 respectively. The signal receiving module 4 2, and can also be used by the control switch 15 to control the display screen 14 of the digital video playback device 10 or the display screen of the external device 30 to play video, or to index. The display screen 14 of the video playback device 10 and the display screen of the external device 30 simultaneously play video; further, the digital video playback device 10 in this embodiment is configured with a plurality of signal receivers 1 1 to reduce the signal. Dead angle. When the external device 30 is a home TV, its digital video playback device 10 can also increase the signal receiving quality through the antenna of the home TV. Please refer to the fifth figure, which is a schematic diagram showing the combination of this creative digital video playback device with the car architecture. As shown in Figure 5, the digital view of this creation

Page 8 M272332 IV. Creation instructions (5) The video playback device 10 can also be installed on a mobile carrier (such as a car) 'to become a digital video playback device for cars. The digital video playback device 10 can use the existing power supply in the car or can be combined with a rechargeable battery module (such as a rechargeable battery) as a power source, so that the car can watch the video broadcast program at the same time when it is running at high speed. Furthermore, it is also possible to have more than two sets of tuners 12 and signal receivers 1 1 in the appropriate direction of the digital video playback device 10, so that when the car is moving at high speed, the dead angle of the signal can be reduced to further increase the range of signal reception. And quality. Please refer to the sixth figure, which is another schematic diagram showing the combination of this creative digital video playback device and the car architecture. As shown in the sixth figure, the digital video playback device 10 of this creation can also use an expansion device (such as an extension cable) to transmit the received signal to an external display screen 1 4 ′ for synchronous playback. In addition, the signal receiving, decoding / modulation technology applied in this creation and the LCD screen signal integration technology currently used in personal computers (for example, National Patent No. 4 5 6 7 2 4 "Computer Integrated Screen System" new patent 2. The national patent No. 5 6 7 7 1 9 "Display device with a TV tuner and its method" invention patent) is different; the reason is that the digital TV system is based on the use requirements of the digital TV playback system and the characteristics of the transmission medium. Appropriate transposition and channel coding technology (for example, the aforementioned ATSC and DVB-T standards have their own video coding standards and transmission bandwidth and frequency), because the tuner in this creation must comply with ATSC or DVB-T standards, and Has a defined tone

Page 9 M272332 4. Creative Instructions (6) The function of channel coding is limited, so it has the function of receiving digital TV programs transmitted by the corresponding digital TV broadcasting system. As mentioned above, this creation provides a better and feasible digital video playback device to file a new patent application in accordance with the law; however, the above implementation descriptions and diagrams are for the preferred embodiment of this creation, and are not based on this. The limitation to this creation is that all similarities and similarities in the structure, installation, features, etc. of this creation shall fall within the scope of the creation purpose and patent application scope of this creation.

Page 10 M272332 Schematic description [Schematic description] The first diagram is a block diagram of the composition of the digital video playback device in the first embodiment of the creation. The second figure is a block diagram of the composition of the digital video playback device in the second embodiment of the creation. The third figure is a block diagram showing the composition of a digital video playback device according to the third embodiment of the present invention. The fourth figure is a block diagram showing the composition of a digital video playback device according to the fourth embodiment of the present invention. The fifth figure is a schematic diagram showing the integration of the digital video player in the car architecture. The sixth diagram is another schematic diagram of the creation of the digital video playback device combined with the automobile architecture. [Description of component representative symbols] 1 0-a digital video player 1 1--m receiver 1 2-a TV tuner 1 3-a system control board 1 4, 14 j-display screen 1 5-a control Switch 2 0-a battery module 3 0-an external device

Page π M272332 Schematic description 4 1--Wireless signal transmitting module 4 2--Wireless signal receiving module 〇 41 Page 12

Claims (1)

M272332 5. Scope of patent application 1. A digital video playback device at least includes: at least one signal receiver for receiving signals from a digital television playback system; at least one television tuner for decoding received signals / Modulation; a display screen to display the video daytime; a system control board to provide the signal transmission interface to which the display screen belongs; 俾 a digital video playback device that can play the digital programs transmitted by the digital television playback system .丨 2. The digital video playback device described in item 1 of the scope of patent application, wherein the digital video playback device includes a rechargeable battery module. 3. The digital video playback device described in item 1 of the scope of patent application, wherein the signal receiver is an antenna. 4. The digital video playback device according to item 1 of the scope of patent application, wherein the digital video playback device includes a signal output interface and a control switch for controlling a signal output mode. 5. The digital video playback device described in item 4 of the scope of patent application, wherein the signal output interface is a wired transmission structure. 6. The digital video playback device as described in item 4 of the scope of patent application, wherein the signal output interface is a wireless transmission structure. 7. The digital video playback device described in item 1 of the scope of patent application, wherein the display screen is a liquid crystal labor curtain. 8. Digital video playback device as described in item 1 of the scope of patent application Page 13 M272332 5. The scope of patent application. Among them, the TV tuner can be A T SC (American Standard), DVB — T (European Standard), DVB — C or D V B — Η standard according to digital TV transmission standards. 9. The digital video playback device as described in item 4 of the scope of patent application, wherein the signal output interface is a wired transmission structure through A / V terminals. 10. The digital video playback device described in item 4 of the scope of patent application, wherein the signal output interface is a wired transmission structure through the S terminal. 1 1. A digital video playback device for a vehicle, comprising at least: a signal receiver for receiving signals from a digital television playback system; at least one TV tuner for decoding / modulating a received signal ; A display screen to display the video daytime; a system control board to provide the signal transmission interface to which the display screen belongs; 俾 a car digital video playback that can play the digital programs transmitted by the digital TV broadcasting system Device. 1 2. The digital video playback device as described in item 11 of the scope of patent application, wherein the digital video playback device can use the existing power source in the car or can be combined with a rechargeable battery module (such as a rechargeable battery) as the power source. 1 3. Digital video playback as described in item 11 of the scope of patent application Page 14 M272332 V. Patent application device, where the digital video playback device has more than two sets of tuner and signal receiver in the proper direction. 14. The digital video playback device described in item 11 of the scope of patent application, wherein the digital video playback device can use an expansion device to transmit an received signal to an external display screen for synchronous playback. 15. The digital video playback device described in item 14 of the scope of patent application, wherein the expansion device may be an expansion line. Page 15