CN216357063U

CN216357063U - High-definition set top box capable of supporting receiving four paths of ATSC3.0 signals

Info

Publication number: CN216357063U
Application number: CN202122959649.4U
Authority: CN
Inventors: 陈中标
Original assignee: Shenzhen Jieke Digital Co ltd
Current assignee: Shenzhen Jieke Digital Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-19
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a high-definition set top box capable of supporting receiving four paths of ATSC3.0 signals, which comprises: the power divider is used for receiving the ATSC3.0 television signal entering the set top box and outputting the television signal by dividing the television signal into four parts; the four-path tuning demodulator is used for respectively tuning and demodulating the four paths of signals output by the power divider and then outputting four paths of TS signals; the TS-USB signal conversion module is used for converting the four paths of TS signals into one path of USB signals; the set top box can perfectly support ATSC3.0 television signals, support HDMI high-definition output and support the simultaneous recording of other programs.

Description

High-definition set top box capable of supporting receiving four paths of ATSC3.0 signals

Technical Field

The utility model relates to a set top box, in particular to a high-definition set top box capable of supporting receiving four paths of ATSC3.0 signals.

Background

With the popularization and popularity of the U.S. ATSC3.0 television standard, people will be able to experience larger, finer images and better audio. But conventional set-top boxes on the market today cannot support this new signal standard. For a traditional set-top box, when we are watching one program, the program time of just other channels is up, and at this time we have more than one to watch only one of the programs.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to provide a high definition set-top box capable of supporting receiving four paths of ATSC3.0 signals, in order to overcome the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a high definition set top box is constructed to support reception of four-way ATSC3.0 signals, comprising:

the power divider is used for receiving and distributing ATSC3.0 television signals entering the set top box to realize one-to-four output of the signals;

the four-path tuning demodulator is simultaneously connected with the four-path output of the power divider and is used for respectively tuning and demodulating the four-path signals output by the power divider and then outputting four-path TS signals;

the TS-USB signal conversion module is respectively connected with the four-path tuning demodulator and is used for converting the four-path TS signal into a path of USB signal;

and the main control is connected with the TS-USB signal conversion module and is used for processing the USB signal to obtain four paths of program signals, decoding one path of program signal and then sending the decoded program signal to the HDMI, and simultaneously recording other program signals so as to read out the required path of program signal when the program signal needs to be watched, and then decoding the program signal and sending the decoded program signal to the HDMI.

Preferably, the master control comprises:

the USB-TS signal conversion module is connected with the TS-USB signal conversion module and is used for converting and restoring the USB signals transmitted by the TS-USB signal conversion module into four TS signals;

the demultiplexing module is connected with the USB-TS signal conversion module and used for demultiplexing the four TS signals to obtain four program signals and sending one of the four program signals to the decoding module;

the recording module is connected with the demultiplexing module and an external USB storage device and is used for recording the program signal obtained by the demultiplexing module into the external USB storage device;

the reading module is connected with the USB storage device and used for reading a program signal from the USB storage device and sending the program signal to the decoding module;

the decoding module is connected with the demultiplexing module and the reading module and is used for sending the decoded program signals to the HDMI display module.

Preferably, the tuning demodulator comprises:

the tuning module is used for tuning the input signal and converting the signal into an intermediate frequency signal in a down-conversion mode;

and the demodulation module is used for demodulating the intermediate frequency signal obtained by the tuning module so as to output a TS signal.

The high-definition set top box capable of supporting receiving four paths of ATSC3.0 signals has the following beneficial effects: the set top box can perfectly support ATSC3.0 television signals, support HDMI high-definition output and support the simultaneous recording of other 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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:

fig. 1 is a schematic diagram of a high definition set top box capable of supporting receiving four ATSC3.0 signals according to the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Exemplary embodiments of the utility model are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the embodiments and specific features in the embodiments of the present invention are described in detail in the present application, but not limited to the present application, and the features in the embodiments and specific features in the embodiments of the present invention may be combined with each other without conflict.

It is noted that the term "coupled" or "connected" as used herein includes not only the direct coupling of two entities, but also the indirect coupling via other entities with beneficial and improved effects. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The terms including ordinal numbers such as "first", "second", and the like used in the present specification may be used to describe various components, but the components are not limited by the terms. These terms are used only for the purpose of distinguishing one constituent element from other constituent elements. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the present invention.

Referring to fig. 1, the high definition set top box capable of supporting receiving four paths of ATSC3.0 signals of the present invention comprises:

It can be understood that the one USB signal output by the TS-USB signal conversion module actually includes four signals, but performs protocol conversion. In addition, what is directly sent to the HDMI display is specifically that signal, which can be temporarily set by the user in advance or online. The specific recording path is also set temporarily by the user in advance or on line.

The set-top box can adopt the latest SONY tuning demodulator scheme (CXD6801GL) and the latest Amlogic decoding scheme (S905X4), so that the set-top box can perfectly support the new standard of American ATSC3.0, and people can enjoy the extreme audio and video experience brought by ATSC 3.0. As the four-way tuning demodulator (CXD6801GL) is innovatively configured, the set-top box can record other three sets of television programs without interference in the background while watching. Since S905X4 can not support TS signal input of four-way tuning demodulator at the same time, the utility model uses IT9350 as communication protocol conversion mechanism, firstly converts TS signal of four-way tuning demodulator into one USB signal, and then uses USB protocol and main control to communicate. The main control can adopt S905X4, and the main control can also be matched with gigabit internet access and gigabit WIFI to support access to network contents.

In a specific embodiment, the tuning demodulator comprises:

In a specific embodiment, the master control includes:

The working principle of the set-top box is as follows:

1) ATSC3.0 television signals enter the set top box and are distributed by the power divider, and one to four of the signals are achieved.

2) The four signals respectively enter a four-way tuning demodulator, in the tuning demodulator, tuning is carried out through an internal tuning module firstly, the signals are subjected to down-conversion to intermediate frequency signals, and then demodulation is carried out through an internal demodulation module, so that TS signals are output.

3) The four TS signals enter a communication protocol converter IT9305, and are converted into a USB signal to enter the master control after being integrated and converted.

4) After the four television signals enter the main control S905X4 according to the USB situation, the USB-TS signal conversion module converts the USB signals into original four TS signals;

5) the demultiplexing module demultiplexes the four TS signals to obtain 4 program signals, wherein one of the program signals (specifically which route is set by a user) is directly sent to the decoding module for decoding and output to the HDMI for real-time viewing on the television, on the other hand, the 4 program signals are also sent to the recording module for recording and storing in an external USB storage device, and if the recorded program needs to be viewed, the required program signals are read from the USB storage device through the reading module, decoded through the decoding module and output to the HDMI for display.

As above, the present embodiment supports viewing ATSC3.0 programs. The set top box can perfectly support ATSC3.0 television signals, support HDMI high-definition output and support simultaneous recording of at most 4 sets of programs.

It should be noted here that the functions of the individual modules involved in the present invention are only conventional adaptive applications of the prior art, such as tuning, demodulation, communication protocol conversion, demultiplexing, decoding between TS signals and USB signals, and these functions are conventional techniques individually, so the specific circuits and principles of these modules are not further expanded, the present invention is an improvement of the prior art, which is substantially in the connection relationship between the overall hardware components and the hardware, more importantly, before entering the main control, four TS signals are obtained by using the power splitter and the four tuning demodulators, and considering that the main control cannot support the TS signal input of the four tuning demodulators simultaneously, the present invention converts the TS signals of the four tuning demodulators into one USB signal first, and adds a recording module to record program signals, these are all improvements of the present invention over the hardware architecture.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A high definition set top box capable of supporting reception of four ATSC3.0 signals, comprising:

2. The high definition set top box capable of supporting reception of four-way ATSC3.0 signals according to claim 1, wherein said master comprises:

3. The high definition set top box capable of supporting reception of a four-way ATSC3.0 signal according to claim 1, wherein said tuned demodulator comprises: