WO2020124965A1

WO2020124965A1 - Television system, program signal processing method and apparatus, device and medium

Info

Publication number: WO2020124965A1
Application number: PCT/CN2019/091146
Authority: WO
Inventors: 孙邦禹; 范思越; 何文杰
Original assignee: 深圳创维－Rgb电子有限公司
Priority date: 2018-12-21
Filing date: 2019-06-13
Publication date: 2020-06-25
Also published as: CN109640121A

Abstract

The embodiments of the present application disclose a television system, a program signal processing method and apparatus, a device and a medium. The system comprises: at least two tuners, at least two demodulators in one-to-one correspondence with the at least two tuners, a main processor and a CI card module. The at least two tuners are respectively connected to the corresponding demodulators and are configured to respectively acquire radio frequency signals at different frequency points, and process the radio frequency signals to obtain at least two intermediate frequency signals. Each demodulator is configured to demodulate the received intermediate frequency signals to obtain TSs corresponding to the intermediate frequency signals. The main processor is configured to combine the received at least two TSs, to obtain one TS; the CI card module is configured to decrypt the received TS, and send the decrypted TS to the main processor, so that the main processor continues to process the decrypted TS.

Description

Television system, program signal processing method, device, equipment and medium

This application requires the priority of the Chinese patent application with the application number 201811574602.2 submitted to the China Patent Office on December 21, 2018. The entire content of this application is incorporated by reference in this application.

Technical field

Embodiments of the present application relate to the technical field of digital television, for example, to a television system, program signal processing method, device, equipment, and medium.

Background technique

With the development of digital TV, TV operators pay more and more attention to the copyright protection of TV programs. Many TV programs have become paid programs. Therefore, users need to purchase corresponding Common Interface (CI) cards to decrypt TV programs. To watch later.

Digital TV basically adopts a single tuner CI card system. At the same time, a CI card can only decrypt one transport stream (TS). Therefore, at the same time, users can only watch or burn TV programs at one frequency.

Therefore, the system design of digital TV needs to be further improved.

Summary of the invention

Embodiments of the present application provide a television system, program signal processing method, device, equipment, and medium, and the television system radio frequency signals of at least two frequency points are decrypted at the same time by the television system.

In a first aspect, an embodiment of the present application provides a television system. The system includes:

At least two tuners, at least two demodulators corresponding to the at least two tuners, a main processor, and a CI card module;

Wherein, the at least two tuners are respectively connected to the corresponding demodulator, and are configured to obtain radio frequency signals of different frequency points respectively, and process the radio frequency signals to obtain at least two intermediate frequency signals, and the intermediate frequency The signal is sent to the corresponding demodulator;

Each demodulator is connected to the main processor, and is configured to demodulate the received intermediate frequency signal to obtain a TS stream corresponding to the intermediate frequency signal, and send the TS stream to the main processor;

The main processor is connected to the CI card module, and is configured to combine at least two TS streams received to obtain one TS stream, and send the one TS stream to the CI card module;

The CI card module is configured to decrypt the received TS stream and send the decrypted TS stream to the main processor, so that the main processor continues to process the decrypted TS stream to realize the program Play.

In a second aspect, an embodiment of the present application further provides a program signal processing method, which is applied to the television system described in the first aspect above, and the method includes:

In the case of receiving a playback instruction, obtain at least two RF signals corresponding to the playback instruction;

Processing the at least two RF signals separately to obtain at least two encrypted TS streams;

Combining the at least two encrypted TS streams to obtain a combined one encrypted TS stream;

Decrypt the merged one TS stream to obtain a TS stream corresponding to at least two RF signals.

In a third aspect, an embodiment of the present application further provides a program signal processing device, which is integrated into the above-mentioned television system, and the device includes:

An acquisition module configured to acquire at least two RF signals corresponding to the playback instruction when receiving the playback instruction;

A processing module configured to process the at least two RF signals separately to obtain at least two encrypted TS streams;

A merging module, configured to merge the at least two encrypted TS streams to obtain a combined one encrypted TS stream;

The decryption module is configured to perform decryption processing on the combined one encrypted TS stream to obtain a TS stream corresponding to at least two RF signals.

According to a fourth aspect, an embodiment of the present application further provides a device, the device including:

One or more processors;

Storage device, configured to store one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors implement the program signal processing method provided by any embodiment of the present application.

According to a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, which when executed by a processor implements the program signal processing method provided by any embodiment of the present application .

A television system provided by the present application realizes that at least two different radio frequency signals can be collected at the same time by setting at least two tuners and a demodulator corresponding to the tuners one by one, and the main processor Two different TS streams are combined to obtain one TS stream, which realizes that a single CI card TV system can simultaneously decrypt two TS channels with different frequency points, thereby enabling users to simultaneously watch or burn different frequencies through a single CI card TV system Order TV shows.

BRIEF DESCRIPTION

1 is a schematic structural diagram of a television system provided by an embodiment of the present application;

2 is a schematic flowchart of a program signal processing method provided by an embodiment of the present application;

3 is a schematic structural diagram of a program signal processing apparatus provided by an embodiment of the present application;

4 is a schematic structural diagram of a device provided by an embodiment of the present application.

detailed description

The application will be described below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limit the present application. In addition, it should be noted that, in order to facilitate description, the drawings only show parts, but not all structures related to the present application.

Example one

FIG. 1 is a schematic structural diagram of a television system provided by an embodiment of the present application. The system may be suitable for acquiring two channels of RF signals at different frequencies at the same time. The system may be applicable to other uses besides a television, a set-top box, etc. CI card products. Referring to FIG. 1, the system includes: at least two tuners 110, at least two demodulators 120 corresponding to the at least two tuners 110, a main processor 130, and a CI card module 140. In this embodiment, the at least two tuners 110 are respectively connected to the corresponding demodulator 120, and are configured to respectively obtain radio frequency signals at different frequency points, and process the radio frequency signals to obtain at least two intermediate frequency signals IF And send the intermediate frequency signal IF to the corresponding demodulator 120; each demodulator 120 is connected to the main processor 130 and is set to demodulate the received intermediate frequency signal IF to obtain the corresponding intermediate frequency signal IF The TS stream, and send the TS stream to the main processor 130; the main processor 130 is connected to the CI card module 140, and is configured to combine at least two received TS streams to obtain one TS stream, and send the one TS stream to the CI card module 140; the CI card module 140 is configured to decrypt the received TS stream, and send the decrypted TS stream to the main processor 130, Causing the main processor 130 to continue processing the decrypted TS stream to realize program playback; wherein, the continuing processing includes executing a specific algorithm on the decrypted TS stream to implement the picture-in-picture function, or While watching a program, record another program in the background.

A television system provided by this embodiment is provided with at least two tuners and a demodulator corresponding to the tuners one by one, so that at least two different radio frequency signals can be collected at the same time, and the main processor At least two different TS streams are combined to obtain one TS stream, which realizes that a single CI card TV system can simultaneously decrypt two TS channels with different frequency points, thereby allowing users to simultaneously watch or burn different TV channels through a single CI card TV system. Frequency TV programs. Compared with the traditional TV system that can only watch or burn TV programs at a single frequency at the same time, and cannot realize the picture-in-picture function between TV programs of different frequency points, the TV system provided by this embodiment can enable users to watch or burn simultaneously The function of programs with different frequency points, and the function of picture-in-picture between two programs with different frequency points.

Example 2

FIG. 2 is a schematic flowchart of a program signal processing method provided by an embodiment of the present application. The method is applied to the television system described in the foregoing embodiment, and is applicable to a case where programs of different frequency points are played or burned at the same time. The method is executed by a program signal processing device, which is implemented by software and/or hardware, and is integrated into the television system described in the above embodiment. Referring to FIG. 2, the method includes the following steps.

Step 210: When receiving the playback instruction, obtain at least two RF signals corresponding to the playback instruction.

In this embodiment, the playback instruction refers to the ordering instruction issued by the user through the TV remote control. For example, the user wants to watch "Hunan Satellite TV", finds "Hunan Satellite TV" through the remote controller, and presses the OK button to trigger "Hunan "TV" playback instructions. In one embodiment, the user can select at least two frequency programs that need to realize the picture-in-picture function through the TV picture-in-picture function setting interface, for example, the user wants to monitor the "Sports Channel" while watching "Hunan Satellite TV" , The user selects "Hunan Satellite TV" and "Sports Channel" through the TV picture-in-picture function setting interface. At this time, the playback commands of "Hunan Satellite TV" and "Sports Channel" are triggered. When the TV receives the playback command, The radio frequency signal corresponding to "Hunan Satellite TV" is obtained through one tuner in the TV system tuner, and the radio frequency signal corresponding to "Sports Channel" is obtained through another tuner in the TV system tuner. This embodiment uses two video signals as an example for subsequent description.

Step 220: Process the at least two RF signals separately to obtain at least two encrypted TS streams.

In an embodiment, processing the at least two RF signals separately to obtain at least two encrypted TS streams includes: modulating the at least two RF signals separately to obtain at least two intermediate frequency signals; At least two IF signals are demodulated separately to obtain at least two encrypted TS streams.

In this embodiment, the video signal is modulated by the tuner in the television system, and the intermediate frequency signal is demodulated by the demodulator in the television system. The TS stream carries program data of a specific frequency point, such as video and audio custom information.

Step 230: Combine the at least two encrypted TS streams to obtain a combined one encrypted TS stream.

In an embodiment, the merge algorithm may be directly invoked, and the packets of the at least two encrypted TS streams are concatenated according to the bit stream format of the TS stream to achieve the merge of the at least two encrypted TS streams. TS stream is a bit stream format based on Packet. Each packet is 188 bytes (or 204 bytes. The 204-byte packet is a cyclic redundancy of 16 bytes after 188 bytes Cyclic Redundancy Check (CRC) verification data, other formats are the same as 188-byte packets), each 188-byte packet consists of a 4-byte Packet Header and 184 bytes Packet data (Packet Data) composition. The composition of the entire TS stream is as follows:

The 4-byte Packet Header information is shown in Table 1 below:

Table 1: Packet header (Packet Header) information description

Step 240: Decrypt the merged one TS stream to obtain TS streams corresponding to at least two RF signals.

In an embodiment, the CI card module in the television system described in the foregoing embodiment decrypts the combined one TS stream to obtain a decrypted TS stream corresponding to at least two RF signals. The decrypted TS The stream is further processed by the main processor to complete the playback of a specific channel program.

The program signal processing method provided in this embodiment obtains at least two RF signals corresponding to the playback instruction by processing at least two RF signals corresponding to the playback instruction, and obtains at least two channels The encrypted TS stream, combining the at least two encrypted TS streams to obtain a combined one encrypted TS stream, and performing decryption processing on the combined one encrypted TS stream to obtain at least two corresponding RF signals The technical means of TS flow achieves the purpose of obtaining TS flow information of at least two different frequency points simultaneously.

In an embodiment, on the basis of the above technical solution, acquiring at least two radio frequency signals corresponding to the playback instruction when receiving the playback instruction includes: simultaneously receiving two different frequency programs when receiving In the case of an instruction, obtain two RF signals of different frequency points respectively; correspondingly, after obtaining TS streams corresponding to at least two RF signals, the method further includes: according to the setting instructions of the main screen and the sub-screen Picture-in-picture playback of TS streams corresponding to at least two RF signals.

For example, if the user wants to monitor "Sports Channel" while watching "Hunan Satellite TV", the user can select "Hunan Satellite TV" and "Sports Channel" through the picture-in-picture function setting interface of the TV. At this time, "Hunan Satellite TV" is triggered. "And "Sports Channel" playback instructions, when the TV receives the playback instruction, through different tuners to obtain the corresponding radio frequency signal of "Hunan Satellite TV" and "Sports Channel" corresponding radio frequency signal, and the radio frequency obtained The signal is processed to obtain the intermediate frequency signal corresponding to "Hunan Satellite TV" and the intermediate frequency signal corresponding to "Sports Channel", and further processed by the demodulator to obtain two encrypted TS streams, and then the main processor calls a specific algorithm to obtain The two encrypted TS streams are combined to obtain an encrypted TS stream. Finally, the encrypted TS stream is decrypted through the CI card to obtain the decrypted TS stream corresponding to "Hunan Satellite TV" and the TS stream corresponding to "Sports Channel". , And play the picture-in-picture playback of the TS stream corresponding to the "Hunan Satellite TV" and the TS stream corresponding to the "Sports Channel" according to the setting instructions of the main picture and the sub-picture. Among them, Picture-in-Picture is a picture display mode that appears after the large-screen TV. With the Picture-in-Picture function, the user monitors or pays attention to the sub-screen or small screen while watching the content of the main screen or the large-screen channel Content of other channels, and can switch to the target channel in time as needed.

Or, when receiving a program playback instruction, obtain a radio frequency signal corresponding to the program playback instruction; when receiving a recording instruction, obtain a radio frequency signal corresponding to the recording instruction; After the TS streams of the two RF signals, the method further includes: playing the TS stream of the RF signal corresponding to the program playback instruction, and using the TS stream of the RF signal corresponding to the recording command as the program playback background Recording.

For example, if the user wants to watch "Hunan Satellite TV", he can trigger the playback command of "Hunan Satellite TV" through the remote control. When the TV receives the playback command, he can obtain the radio frequency signal corresponding to "Hunan Satellite TV", and finally realize the "Hunan Satellite TV". If the user wants to record the program of "Hunan Jingshi" in the background while watching the "Hunan Satellite TV" corresponding to the broadcast of the TS stream, then the recording command of "Hunan Jingshi" can be further triggered and the TV receives During the recording instruction, the corresponding radio frequency signal is obtained.

Example Three

FIG. 3 is a schematic structural diagram of a program signal processing apparatus provided by an embodiment of the present application. The apparatus is integrated into the television system described in the foregoing embodiment. Referring to FIG. 3, the apparatus includes: an acquisition module 310 and a processing module 320 、Merge module 330 and decryption module 340.

In this embodiment, the acquisition module 310 is configured to acquire at least two RF signals corresponding to the playback instruction when receiving the playback instruction; the processing module 320 is configured to perform separate operations on the at least two RF signals Processing to obtain at least two encrypted TS streams; the merge module 330 is configured to merge the at least two encrypted TS streams to obtain a merged one encrypted TS stream; the decryption module 340 is configured to perform the merge The one encrypted TS stream after the decryption is processed to obtain a TS stream corresponding to at least two RF signals.

In an embodiment, the processing module 320 includes: a modulation unit configured to modulate the at least two RF signals respectively to obtain at least two intermediate frequency signals; a demodulation unit configured to separately modulate the at least two intermediate frequency signals Perform demodulation to obtain at least two encrypted TS streams.

In an embodiment, the acquisition module 310 is configured to: when receiving an instruction to simultaneously play two programs at different frequencies, separately acquire radio frequency signals at two different frequencies.

In an embodiment, the device further includes a playback module configured to perform picture-in-picture playback of the TS streams corresponding to the at least two RF signals according to the setting instructions of the main picture and the sub-picture.

In an embodiment, the acquisition module 310 is further configured to: when receiving a program playback instruction, acquire a radio frequency signal corresponding to the program playback instruction; when receiving a recording instruction, acquire the recording instruction Corresponding radio frequency signal.

The device further includes: a playback module configured to play the TS stream of the radio frequency signal corresponding to the program playback instruction; a recording module configured to use the TS stream of the radio frequency signal corresponding to the recording instruction as the program playback background To record.

A program signal processing apparatus provided in this embodiment obtains at least two RF signals corresponding to the playback instruction by processing at least two RF signals corresponding to the playback instruction, and obtains at least Two encrypted TS streams, combining the at least two encrypted TS streams to obtain a combined one encrypted TS stream, and decrypting the combined one encrypted TS stream to obtain at least two corresponding The technical means of TS flow of radio frequency signals achieves the purpose of obtaining TS flow information of at least two different frequency points simultaneously.

The control device of the device provided by the embodiment of the present application can execute the program signal processing method provided by any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not described in the above embodiments, please refer to the program signal processing method provided in any embodiment of the present application.

Example 4

4 is a schematic structural diagram of a device provided by an embodiment of the present application. FIG. 4 shows a block diagram of an exemplary device 12 suitable for implementing embodiments of the present application. The device 12 shown in FIG. 4 is only an example, and should not bring any limitation to the functions and use scope of the embodiments of the present application.

As shown in FIG. 4, the device 12 is represented in the form of a general-purpose computing device. The components of the device 12 may include, but are not limited to, one or more processors or processing units 16, a system memory 28, and a bus 18 connecting different system components (including the system memory 28 and the processing unit 16).

The bus 18 represents one or more of several types of bus structures, including a memory bus or a memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VideoElectronicsStandardsAssociation) , VESA) local area bus and peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.

Device 12 includes a variety of computer system readable media. These media may be any available media that can be accessed by device 12, including volatile and nonvolatile media, removable and non-removable media.

The system memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory, RAM) 30 and/or cache memory 32. The device 12 may include other removable/non-removable, volatile/nonvolatile computer system storage media. Merely by way of example, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media (not shown in FIG. 4 and is commonly referred to as a "hard disk drive"). Although not shown in FIG. 4, a disk drive for reading and writing to a removable non-volatile disk (such as a "floppy disk") and a removable non-volatile optical disk (such as a compact disk read-only storage) may be provided (Compact Disc Read-Only Memory, CD-ROM), digital video disc (Digital Video Disc-Read Only Memory, DVD-ROM) or other optical media) optical disc drive for reading and writing. In these cases, each drive may be connected to the bus 18 through one or more data medium interfaces. The memory 28 may include at least one program product, and the program product has a group of program modules (for example, an acquisition module 310, a processing module 320, a merge module 330, and a decryption module 340), and these program modules are configured to perform multiple embodiments of the present application. Features.

A program/utility tool 40 having a set of (acquisition module 310, processing module 320, merge module 330, and decryption module 340) program module 42 may be stored in, for example, the memory 28. Such program modules 42 include but are not limited to operating systems, One or more application programs, other program modules, and program data, each or some combination of these examples may include the implementation of the network environment. The program module 42 generally performs the functions and/or methods in the embodiments described in this application.

The device 12 may also communicate with one or more external devices 14 (eg, keyboard, pointing device, display 24, etc.), and may also communicate with one or more devices that enable a user to interact with the device 12, and/or Device 12 can communicate with any device (eg, network card, modem, etc.) that can communicate with one or more other computing devices. This communication can be performed through an input/output (I/O) interface 22. In addition, the device 12 can also communicate with one or more networks (such as a local area network (Local Area Network, LAN), wide area network (Wide Area Network, WAN), and/or public network, such as the Internet) through the network adapter 20. As shown in FIG. 4, the network adapter 20 communicates with other modules of the device 12 via the bus 18. It should be understood that although not shown in FIG. 4, other hardware and/or software modules may be used in conjunction with the device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays) of Independent Drives (RAID) systems, tape drives and data backup storage systems, etc.

The processing unit 16 executes a variety of functional applications and data processing by running a program stored in the system memory 28, for example, the program signal processing method provided in any embodiment of the present application, the method including: in the case of receiving a playback instruction To obtain at least two RF signals corresponding to the playback instruction; process the at least two RF signals separately to obtain at least two encrypted TS streams; combine the at least two encrypted TS streams to obtain The combined one-way encrypted TS stream; decrypting the combined one-way encrypted TS stream to obtain TS streams corresponding to at least two radio frequency signals.

Example 5

An embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the program is executed by a processor, the program signal processing method provided by any embodiment of the present application is implemented. The method includes: : When receiving the playback instruction, obtain at least two RF signals corresponding to the playback instruction; process the at least two RF signals separately to obtain at least two encrypted TS streams; The encrypted TS streams are combined to obtain a combined encrypted TS stream; the encrypted encrypted TS stream is decrypted to obtain a TS stream corresponding to at least two RF signals.

The computer storage media in the embodiments of the present application may use any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination of the above. Examples of computer-readable storage media (non-exhaustive list) include: electrical connections with one or more wires, portable computer diskettes, hard drives, RAM, read-only memory (Read-Only Memory, ROM), erasable Erasable Programmable Read-Only Memory (EPROM) or flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the foregoing. In this application, the computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

The computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, and the computer-readable signal medium carries computer-readable program code. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, and the computer-readable medium may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. .

The program code contained on the computer-readable medium may be transmitted on any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

The computer program code for performing the operation of the present application may be written in one or more programming languages or a combination of multiple programming languages, and the programming languages include object-oriented programming languages such as Java, Smalltalk, C++, It also includes conventional procedural programming languages-such as "C" language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as an independent software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In the case where a remote computer is involved, the remote computer may be connected to the user's computer through any kind of network, including LAN or WAN, or may be connected to an external computer (eg, using an Internet service provider to connect through the Internet).

Claims

A television system, comprising: at least two tuners, at least two demodulators corresponding to the at least two tuners, a main processor and a common interface CI card module;

Wherein, the at least two tuners are respectively connected to the corresponding demodulator, and are configured to obtain radio frequency signals of different frequency points respectively, and process the radio frequency signals to obtain at least two intermediate frequency signals, and the intermediate frequency The signal is sent to the corresponding demodulator;

Each demodulator is connected to the main processor, and is configured to demodulate the received intermediate frequency signal to obtain a TS stream corresponding to the intermediate frequency signal and send the TS stream to the main processor;

The main processor is connected to the CI card module, and is configured to combine at least two TS streams received to obtain one TS stream, and send the one TS stream to the CI card module;

The CI card module is configured to decrypt the received TS stream and send the decrypted TS stream to the main processor, so that the main processor continues to process the decrypted TS stream to realize the program Play.
A program signal processing method applied to the television system of claim 1 above includes:

In the case of receiving a playback instruction, obtain at least two RF signals corresponding to the playback instruction;

Processing the at least two RF signals separately to obtain at least two encrypted TS TS streams;

Combining the at least two encrypted TS streams to obtain a combined one encrypted TS stream;

Decrypting the combined one-way encrypted TS stream to obtain a TS stream corresponding to the at least two RF signals.
The method according to claim 2, wherein processing the at least two RF signals separately to obtain at least two encrypted TS streams includes:

Modulating the at least two RF signals separately to obtain at least two intermediate frequency signals;

Demodulating the at least two intermediate frequency signals separately to obtain at least two encrypted TS streams.
The method according to claim 2, wherein, in the case where the playback instruction is received, acquiring at least two RF signals corresponding to the playback instruction includes:

In the case of receiving the instruction to simultaneously play the programs of two different frequency points, the radio frequency signals of the two different frequency points are respectively obtained.
The method according to claim 4, after the obtaining TS streams corresponding to the at least two RF signals, further comprising:

According to the setting instructions of the main picture and the sub-picture, the TS stream corresponding to the at least two RF signals is played in a picture-in-picture.
The method according to claim 2, wherein, in the case where the playback instruction is received, acquiring at least two RF signals corresponding to the playback instruction includes:

In the case of receiving a program playback instruction, obtain a radio frequency signal corresponding to the program playback instruction;

When receiving the recording instruction, obtain a radio frequency signal corresponding to the recording instruction.
The method according to claim 6, after obtaining the TS streams corresponding to the at least two RF signals, further comprising:

The TS stream of the radio frequency signal corresponding to the program playback instruction is played, and the TS stream of the radio frequency signal corresponding to the recording instruction is used as a program playback background for recording.
A program signal processing device, integrated into the television system of claim 1, comprising:

An acquisition module, configured to acquire at least two RF signals corresponding to the playback instruction when receiving the playback instruction;

The processing module is configured to process the at least two RF signals separately to obtain at least two encrypted TS TS streams;

A merging module, configured to merge the at least two encrypted TS streams to obtain a combined one encrypted TS stream;

The decryption module is configured to perform decryption processing on the combined one encrypted TS stream to obtain a TS stream corresponding to the at least two RF signals.
The apparatus according to claim 8, wherein the processing module comprises:

A modulation unit configured to separately modulate the at least two RF signals to obtain at least two IF signals;

The demodulation unit is configured to demodulate the at least two intermediate frequency signals to obtain at least two encrypted TS streams.
The apparatus according to claim 8, wherein the acquisition module is configured to acquire the radio frequency signals of the two different frequency points respectively when receiving the instruction to simultaneously play the programs of two different frequency points.
The apparatus according to claim 10, further comprising: a playback module configured to perform picture-in-picture playback of the TS streams corresponding to the at least two RF signals according to the setting instructions of the main picture and the sub-picture.
The apparatus according to claim 8, wherein the acquisition module is configured to:

In the case of receiving a program playback instruction, obtain a radio frequency signal corresponding to the program playback instruction;

When receiving the recording instruction, obtain a radio frequency signal corresponding to the recording instruction.
The apparatus according to claim 12, further comprising: a playback module configured to play a TS stream of radio frequency signals corresponding to the program playback instruction; a recording module configured to play a radio frequency signal corresponding to the recording instruction The TS stream is recorded as the background of the program.
A device, including:

At least one processor;

A storage device configured to store at least one program,

When the at least one program is executed by the at least one processor, the at least one processor implements the program signal processing method according to any one of claims 2-7.
A computer-readable storage medium storing a computer program, which when executed by a processor implements the program signal processing method according to any one of claims 2-7.