CN218243644U - Digital electronic tuner and video playing device - Google Patents
Digital electronic tuner and video playing device Download PDFInfo
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- CN218243644U CN218243644U CN202222889150.5U CN202222889150U CN218243644U CN 218243644 U CN218243644 U CN 218243644U CN 202222889150 U CN202222889150 U CN 202222889150U CN 218243644 U CN218243644 U CN 218243644U
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Abstract
An embodiment of the utility model provides a digital electronic tuner and video playback equipment for solve current based on have the main control chip to carry out task control and need the outside conversion box of independent power supply, manufacturing cost is high, uses the poor defect of convenience. The digital electronic tuner is applied to non-ATSC 3.0 standard video playing equipment; the system comprises an ATSC3.0 radio frequency antenna interface for receiving an ATSC3.0 television signal, an ATSC3.0 radio frequency signal processor for converting the ATSC3.0 television signal into a low intermediate frequency signal, a digital demodulation processor for converting the low intermediate frequency signal into an ATSC3.0 of an MPEG-2TS transport stream signal, a USB transceiver for converting the MPEG-2TS transport stream signal into a USB transport signal, and a USB interface; the utility model discloses a USB interface is the power consumption unit power supply of digital electronic tuner, accomplishes corresponding function through each functional circuit of non-ATSC 3.0 standard video broadcast equipment's main control chip control electronic tuner, and then makes non-ATSC 3.0 standard video broadcast equipment can receive and play ATSC3.0 standard television program.
Description
Technical Field
The utility model relates to a television broadcasting technology field especially relates to a digital electronic tuner and video playback device.
Background
In month 1 2018, the ATSC3.0 standard was promulgated after ATSC1.0 by the american Advanced Television services advisory Committee (ATSC). In the end of 2020, television manufacturers such as samsung, LG, sony, etc. began to launch ATSC3.0 standard televisions. Currently, broadcasters in the united states, such as FOX, CBS, PBS, ABC, and a number of local broadcasters, have shown programs based on the ATSC3.0 standard. In the next decade, all broadcast stations in the united states will be converted to the ATSC3.0 standard.
Compared to the ATSC1.0 standard introduced in 1996, the ATSC3.0 standard is a completely new broadcast television standard facing a new broadcast network environment, and the ATSC3.0 standard is not compatible with the ATSC1.0 standard. That is, the existing video playing device of the ATSC1.0 standard, such as a smart television, a desktop computer, a notebook computer, a tablet computer, a smart phone, and an automobile video player, cannot directly watch the broadcast television program of the ATSC3.0 standard.
In order to solve the above technical problem, those skilled in the art provide an external converter box including an ATSC3.0 tuner, a main control chip, and an independent power supply, and convert the ATSC3.0 standard broadcast television program into a video stream signal that can be input by a video playing device of the ATSC1.0 standard through the converter box, so as to watch the ATSC3.0 standard broadcast television program on the video playing device of the ATSC1.0 standard.
However, the inventor finds that in the process of implementing the technical solution in the embodiment of the present invention, the existing external transfer box has at least the following technical problems:
the external conversion box is used for task control based on the own main control chip and needs to be supplied with power independently, so that the manufacturing cost is high, and the use convenience is poor.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present invention is to provide a digital electronic tuner and a video playback device, so as to solve the problem in the prior art that the external conversion box needs to be powered independently and is based on the task control of an own main control chip, and therefore, the manufacturing cost is high and the use convenience is poor. The embodiment of the utility model provides a, power supply for digital electronic tuner's power consumption unit through the USB interface, thereby need not additionally to design power supply circuit in the digital electronic tuner, also need not to supply power alone to digital electronic tuner, each function circuit through non ATSC3.0 standard video playback equipment's main control chip control electronic tuner accomplishes the function that corresponds, thereby electronic tuner need not have embedded main control chip, and then through simple circuit structure, lower cost of realization, high ease for use just enables non ATSC3.0 standard video playback equipment can receive and play ATSC3.0 television program.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a digital electronic tuner, which is applied to a non-ATSC 3.0 standard video playing device; the digital electronic tuner includes:
the ATSC3.0 radio frequency antenna interface is matched with the radio frequency antenna and used for receiving an ATSC3.0 television signal;
the ATSC3.0 radio frequency signal processor is electrically connected with the ATSC3.0 radio frequency antenna interface and is used for converting an ATSC3.0 television signal transmitted from the ATSC3.0 radio frequency antenna interface into a low intermediate frequency signal;
an ATSC3.0 digital demodulation processor, said ATSC3.0 digital demodulation processor electrically connected to said ATSC3.0 radio frequency signal processor, for converting low intermediate frequency signals transmitted from said ATSC3.0 radio frequency signal processor into MPEG-2TS transport stream signals;
a USB transceiver designed and manufactured based on USB2.0 and beyond standards; the USB transceiver is electrically connected with the ATSC3.0 digital demodulation processor and is used for converting the MPEG-2TS transmission stream signal transmitted by the ATSC3.0 digital demodulation processor into a USB transmission signal;
a USB interface designed and manufactured based on USB2.0 and later standards; the USB interface is electrically connected with the USB transceiver;
when the digital electronic tuner is in communication connection with the non-ATSC 3.0 standard video playing equipment through the USB interface, the non-ATSC 3.0 standard video playing equipment supplies power to the ATSC3.0 radio frequency antenna interface, the ATSC3.0 radio frequency signal processor, the ATSC3.0 digital demodulation processor and the USB transceiver through the USB interface; the main control chip of the non-ATSC 3.0 standard video playing device controls the ATSC3.0 radio frequency signal processor to convert ATSC3.0 television signals into low and intermediate frequency signals, controls the ATSC3.0 digital demodulation processor to convert the transmitted low and intermediate frequency signals into MPEG-2TS transport stream signals, and controls the USB transceiver to convert the MPEG-2TS transport stream signals transmitted by the ATSC3.0 digital demodulation processor into USB transport signals, so that the non-ATSC 3.0 standard video playing device can receive and play ATSC3.0 standard television programs.
Optionally, the digital electronic tuner further includes a printed circuit board and a package housing, the ATSC3.0 radio frequency antenna interface, the ATSC3.0 radio frequency signal processor, the ATSC3.0 digital demodulation processor, the USB transceiver, and the USB interface are integrated on the printed circuit board, the printed circuit board is packaged in the package housing, and the USB interface protrudes from the package housing.
Optionally, the ATSC3.0 radio frequency antenna interface is an SMA interface.
In a second aspect, the present invention provides a video playing device, which includes a non-ATSC 3.0 standard video playing device, and the aforementioned digital electronic tuner communicatively connected to the non-ATSC 3.0 standard video playing device through a USB interface.
Based on the above technical solution, the digital electronic tuner and the video playing device in the embodiment of the present invention directly supply power to each functional circuit of the digital electronic tuner through the USB interface, and the digital electronic tuner does not need to separately design a power circuit; the main control chip of the direct non-ATSC 3.0 standard video playing device controls each functional circuit of the electronic tuner to complete the corresponding function, and the digital electronic tuner does not need to be provided with an embedded main control chip; on the one hand, on the premise of realizing the function of the ATSC3.0 standard compatible with the ATSC1.0 standard, the design and use of a main control chip and a peripheral circuit are saved, the design and use of a power circuit are saved, and the digital electronic tuner has a simpler structure and lower realization cost; on the other hand, data communication is carried out through a USB interface basically possessed by ATSC1.0 standard equipment, and the conversion device/equipment has the plug-and-play characteristic, so that the usability of the conversion device/equipment is improved.
Therefore, the embodiment of the present invention provides a digital electronic tuner and video playing device, which adopts a simpler design structure, has a lower implementation cost, and is easy to use in plug and play, so that a non-ATSC 3.0 standard video playing device can receive and play ATSC3.0 television programs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic block diagram of a digital electronic tuner in an embodiment of the invention;
fig. 2 shows a schematic structural diagram of a video playback device in an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in the figure is as follows:
video playback device 10, digital electronic tuner 100, ATSC3.0 RF antenna interface 110, ATSC3.0 RF signal processor 120, ATSC3.0 digital demodulation processor 130, USB transceiver 140, USB interface 150, non-ATSC 3.0 standard video playback device 200.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will be made in conjunction with practical applications, with reference to the accompanying drawings of the embodiments of the present invention, to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.
It should be understood that the digital electronic tuner and the video playing device are not limited to provide the conversion function for the ATSC1.0 standard video playing device, but may also provide the conversion function for the non-ATSC 3.0 standard video playing device, such as a smart television, a desktop computer, a notebook computer, a tablet computer, a smart phone, and an automobile video player, so that the non-ATSC 3.0 standard video playing device can receive and play the ATSC3.0 standard television program.
It should be understood that the USB2.0 standard was introduced in 2000, the USB3.0 standard was introduced in 2008, and the non-ATSC 3.0 standard video playback device has a USB interface, or a USB interface compatible with USB2.0 downward, such as a USB3.0 or USB3.1 interface.
Fig. 1 shows a schematic block diagram of a digital electronic tuner in an embodiment of the present invention.
Referring now to fig. 1, a digital electronic tuner in an embodiment of the present invention is applied to a non-ATSC 3.0 standard video playback device; the digital electronic tuner includes:
an ATSC3.0 radio frequency antenna interface 110, said ATSC3.0 radio frequency antenna interface 110 cooperating with a radio frequency antenna for receiving ATSC3.0 television signals;
an ATSC3.0 radio frequency signal processor 120, wherein the ATSC3.0 radio frequency signal processor 120 is electrically connected to the ATSC3.0 radio frequency antenna interface 110, and is configured to convert an ATSC3.0 television signal transmitted from the ATSC3.0 radio frequency antenna interface 110 into a low intermediate frequency signal;
an ATSC3.0 digital demodulation processor 130, wherein the ATSC3.0 digital demodulation processor 130 is electrically connected to the ATSC3.0 radio frequency signal processor 120, and is configured to convert the low intermediate frequency signal transmitted from the ATSC3.0 radio frequency signal processor 120 into an MPEG-2TS transport stream signal;
a USB transceiver 140, the USB transceiver 140 designed and manufactured based on USB2.0 and beyond standards; the USB transceiver 140 is electrically connected to the ATSC3.0 digital demodulation processor 130, and is configured to convert the MPEG-2TS transport stream signal transmitted from the ATSC3.0 digital demodulation processor 130 into a USB transmission signal;
a USB interface 150, said USB interface 150 designed and manufactured based on USB2.0 and beyond standards; the USB interface 150 is electrically connected to the USB transceiver 140;
when the digital electronic tuner is communicatively connected to the non-ATSC 3.0 standard video playback device through the USB interface 150, the non-ATSC 3.0 standard video playback device supplies power to the ATSC3.0 radio frequency antenna interface 110, the ATSC3.0 radio frequency signal processor 120, the ATSC3.0 digital demodulation processor 130, and the USB transceiver 140 through the USB interface 150; the main control chip of the non-ATSC 3.0 standard video playing device controls the ATSC3.0 radio frequency signal processor 120 to convert ATSC3.0 television signals into low intermediate frequency signals, controls the ATSC3.0 digital demodulation processor 130 to convert the transmitted low intermediate frequency signals into MPEG-2TS transport stream signals, and controls the USB transceiver 140 to convert the MPEG-2TS transport stream signals transmitted by the ATSC3.0 digital demodulation processor into USB transport signals, so that the non-ATSC 3.0 standard video playing device can receive and play ATSC3.0 standard television programs.
In the embodiment of the present invention, the power supply through the non-ATSC 3.0 standard video playing device is the digital electronic tuner based on the USB interface, the ATSC3.0 rf antenna interface 110, the ATSC3.0 rf signal processor 120, the ATSC3.0 digital demodulation processor 130, the USB transceiver 140 supplies power, and the digital electronic tuner does not need to design a power circuit separately.
In the embodiment of the present invention, the main control chip and the USB interface control directly based on the non-ATSC 3.0 standard video playing device control the ATSC3.0 radio frequency signal processor 120 converts the ATSC3.0 television signal into a low intermediate frequency signal, controls the ATSC3.0 digital demodulation processor 130 converts the low intermediate frequency signal transmitted into an MPEG-2TS transport stream signal, controls the USB transceiver 140 converts the MPEG-2TS transport stream signal transmitted by the ATSC3.0 digital demodulation processor into a USB transmission signal, and the digital electronic tuner does not need to have an embedded main control chip.
That is, on the premise of realizing the function of the ATSC3.0 standard compatible with the ATSC1.0 standard, the design and use of the main control chip and the peripheral circuit are saved, the design and use of the power supply circuit are saved, and the digital electronic tuner has a simpler structure and lower implementation cost. Furthermore, the USB interface is plug-and-play, and the usability of the non-ATSC 3.0 standard video playing equipment for receiving and playing the ATSC3.0 television programs is improved.
In an embodiment of the present invention, the ATSC3.0 rf antenna interface 110 is an ATSC3.0 rf antenna interface commonly used in an ATSC3.0 standard video player. In selecting a TSC3.0 rf antenna interface, its industry usage and verification historical performance need to be considered. Optionally, the ATSC3.0 radio frequency antenna interface 110 is an SMA interface. The SMA interface is a radio frequency antenna interface which is verified and confirmed in the antenna industry for a long time and has reliable performance and is used most in the industry. An SMA interface is selected as the ATSC3.0 rf antenna interface, which can ensure the receiving quality of ATSC3.0 tv signals on the one hand, and can reduce the acquisition cost of the ATSC3.0 rf antenna interface 110 on the other hand.
In an embodiment of the present invention, the ATSC3.0 radio frequency signal processor 120 is an ATSC3.0 radio frequency signal processor commonly used in an ATSC3.0 standard video player.
In an embodiment of the present invention, the ATSC3.0 digital demodulation processor 130 is an ATSC3.0 digital demodulation processor commonly used in an ATSC3.0 standard video playing device.
In the embodiment of the present invention, the USB transceiver 140 is designed and manufactured based on USB2.0 and later standards; the USB transceiver 140 is a USB transceiver commonly used in digital devices.
In the embodiment of the present invention, the USB interface 150 is designed and manufactured based on USB2.0 and later standards; the USB interface 150 is a USB interface commonly used in digital devices, which is often used for data communication and device power supply.
The embodiment of the present invention provides a digital electronic tuner, which is used as an independent functional device, and needs to consider the reliability and stability of its use. Optionally, the digital electronic tuner further comprises a printed circuit board on which the ATSC3.0 radio frequency antenna interface 110, the ATSC3.0 radio frequency signal processor 120, the ATSC3.0 digital demodulation processor 130, the USB transceiver 140, and the USB interface 150 are integrated, and a package housing in which the printed circuit board is packaged, and from which the USB interface 150 protrudes. The digital electronic tuner of the embodiment of the present invention is designed and manufactured by means of an electronic product, rather than a simple functional module, and thus can accelerate large-scale commercial application of the digital electronic tuner.
Fig. 2 shows a schematic structural diagram of a video playback device in an embodiment of the present invention.
Referring now to fig. 2, a video playback device 10 according to an embodiment of the present invention includes a non-ATSC 3.0 standard video playback device 200, and is communicatively connected to the non-ATSC 3.0 standard video playback device through a USB interface, which is an embodiment of the present invention, and a digital electronic tuner 100.
It should be understood that the video playback device 10 in the embodiment of the present invention is a device including the digital electronic tuner 100 in the embodiment of the present invention. For convenience and simplicity of description, reference may be made to the description of the digital electronic tuner in the embodiment of the present invention for the description of the video playback device 10, and details are not repeated here.
Claims (4)
1. The digital electronic tuner is applied to non-ATSC 3.0 standard video playing equipment; wherein said digital electronic tuner comprises:
the ATSC3.0 radio frequency antenna interface is matched with the radio frequency antenna and used for receiving an ATSC3.0 television signal;
the ATSC3.0 radio frequency signal processor is electrically connected with the ATSC3.0 radio frequency antenna interface and is used for converting an ATSC3.0 television signal transmitted from the ATSC3.0 radio frequency antenna interface into a low intermediate frequency signal;
an ATSC3.0 digital demodulation processor, said ATSC3.0 digital demodulation processor electrically connected to said ATSC3.0 radio frequency signal processor, for converting low intermediate frequency signals transmitted from said ATSC3.0 radio frequency signal processor into MPEG-2TS transport stream signals;
a USB transceiver designed and manufactured based on USB2.0 and beyond standards; the USB transceiver is electrically connected with the ATSC3.0 digital demodulation processor and is used for converting the MPEG-2TS transmission stream signal transmitted by the ATSC3.0 digital demodulation processor into a USB transmission signal;
a USB interface designed and manufactured based on USB2.0 and beyond standards; the USB interface is electrically connected with the USB transceiver;
when the digital electronic tuner is in communication connection with the non-ATSC 3.0 standard video playing equipment through the USB interface, the non-ATSC 3.0 standard video playing equipment supplies power to the ATSC3.0 radio frequency antenna interface, the ATSC3.0 radio frequency signal processor, the ATSC3.0 digital demodulation processor and the USB transceiver through the USB interface; the main control chip of the non-ATSC 3.0 standard video playing device controls the ATSC3.0 radio frequency signal processor to convert ATSC3.0 television signals into low and intermediate frequency signals, controls the ATSC3.0 digital demodulation processor to convert the transmitted low and intermediate frequency signals into MPEG-2TS transport stream signals, and controls the USB transceiver to convert the MPEG-2TS transport stream signals transmitted by the ATSC3.0 digital demodulation processor into USB transport signals, so that the non-ATSC 3.0 standard video playing device can receive and play ATSC3.0 standard television programs.
2. The digital electronic tuner of claim 1, further comprising a printed circuit board and an enclosure housing, wherein the ATSC3.0 radio frequency antenna interface, the ATSC3.0 radio frequency signal processor, the ATSC3.0 digital demodulation processor, the USB transceiver, and the USB interface are integrated on the printed circuit board, wherein the printed circuit board is enclosed in the enclosure housing, and wherein the USB interface extends from the enclosure housing.
3. The digital electronic tuner of claim 1 or 2, wherein the ATSC3.0 radio frequency antenna interface is an SMA interface.
4. Video playback device, comprising a non-ATSC 3.0 standard video playback device, the digital electronic tuner of any of claims 1-3 communicatively coupled to the non-ATSC 3.0 standard video playback device via a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889150.5U CN218243644U (en) | 2022-10-31 | 2022-10-31 | Digital electronic tuner and video playing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889150.5U CN218243644U (en) | 2022-10-31 | 2022-10-31 | Digital electronic tuner and video playing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218243644U true CN218243644U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222889150.5U Active CN218243644U (en) | 2022-10-31 | 2022-10-31 | Digital electronic tuner and video playing device |
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|---|---|
| CN (1) | CN218243644U (en) |
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- 2022-10-31 CN CN202222889150.5U patent/CN218243644U/en active Active
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