TWI727288B - System for anti-piracy of channels and method thereof - Google Patents

Abstract

This invention provides a system for anti-piracy of channels and a method thereof comprising a monitoring module which obtains monitoring data from a set-top box; an anti-piracy management module which sets the anti-piracy data of the set-top box or the channel according to the monitoring data, wherein the anti-piracy data contains an anti-piracy mechanism; a client anti-piracy module which is executed in the set-top box and when the set-top box meets the anti-piracy mechanism, the set-top box is set as a pirated set-top box, so that a clear watermark is displayed in the play screen of the pirated set-top box.

Description

System and method for channel anti-pirate recording

The present invention relates to an anti-piracy recording technology, in particular to a system and method for anti-piracy recording of Internet Protocol Television (IPTV) channels.

Digital Right Management (DRM) is a management mechanism used to protect the use of digital content. Through encryption, authentication and other processes, it is confirmed that users are legally using digital content. The head-end server adds a watermark to the content and restricts its use. Time, restrictions on the use of vehicles, and authorization to protect digital content, mainly to protect the transmission process. However, when the digital content passes the identity verification and authorization verification of the terminal set-top box device, the thief can pass the skimming record. Ways to steal the signal from the set-top box to the TV, such as the use of a cracked device to record the HDMI signal, and then transcode the signal for illegal set-top box or mobile phone users to watch.

For this kind of pirated recording, one method is to use watermarking software to embed a digital watermark in the head-end channel signal that is imperceptible to the naked eye. When the channel is stolen, the signal can be found through the hidden information. The source set-top box, but this technology is usually authorized by the number of set-top boxes, the cost is high, and the digital watermarking technology algorithm is complicated, and the original watermarking factory needs to interpret the pirated recording signal, which makes it impossible to process the pirated recording in time.

Another method is to use the user ID as a QR code generation parameter to generate a QR-Code, and superimpose the QR-Code on the playback screen. The user ID can be deduced from the QR-Code, so as to know the theft. The source is recorded, but the disadvantage is obviously that it affects the user’s channel viewing experience, after all, the screen is superimposed with a two-dimensional bar code.

Therefore, how to provide a convenient and practical channel anti-pirate recording system and method has become an important topic at present.

In order to solve the above problems, the present invention provides a channel anti-pirate recording system, which includes: a monitoring module to obtain monitoring data of a set-top box, the monitoring data including the set-top box and the channel played by the set-top box ; The anti-theft recording management module contains a watermark coding rule table that converts the user identification code of the set-top box into font color, so as to set the anti-theft recording data of the set-top box or the channel according to the monitoring data. , The anti-theft recording data includes an anti-theft recording mechanism with the monitoring data and anti-theft recording period; and a client anti-theft recording module, which is executed in the set-top box to receive the user identification code of the set-top box , The watermark coding rule table and the anti-pirated data, so that when the set-top box complies with the anti-pirated recording mechanism in the anti-pirated data, the set-top box is set as a pirated set-top box for the purpose of the theft The clear code watermark is displayed on the playback screen of the recorder top box, where the clear code watermark is to sequentially convert the user identification code of the stolen recorder top box to the font color of the watermark coding rule table to the stolen recorder On the background string of the playback screen of the upper box.

In one embodiment, the background string is channel program information.

In one embodiment, the anti-piracy data set by the anti-piracy management module further includes a watermark display mechanism, so that the client anti-piracy module controls the piracy according to the watermark display mechanism. The time of the clear watermark is displayed on the playback screen of the recorder top box.

In one embodiment, the system further includes: an anti-encoding module, which inverse-encodes the clear watermark of the playback screen of the stolen recorder top box according to the watermark encoding rule table, so as to download from the stolen recorder The user identification code of the box on the stolen recorder is parsed from the clear watermark on the playing screen of the box.

In one embodiment, the anti-encoding module uses image processing technology to perform the anti-encoding.

The present invention also provides a channel anti-pirate recording method, which includes: obtaining monitoring data of a set-top box, wherein the monitoring data includes the set-top box and the channel played by the set-top box; and setting a watermark coding rule table , Wherein the watermark coding rule table is to convert the user identification code of the set-top box into font color; set the anti-pirate data of the set-top box or the channel according to the monitoring data, wherein the anti-pirate data Including the anti-theft recording mechanism with the monitoring data and the anti-theft recording time period; and when the set-top box meets the anti-theft recording mechanism in the anti-theft data, the set-top box is set as a pirated set-top box, and The clear code watermark is displayed in the playback screen of the stolen recorder top box, wherein the clear code watermark is the font color of the user identification code of the stolen recorder top box corresponding to the watermark coding rule table and is sequentially converted to the On the background string of the playback screen of the stolen recorder's upper box.

In one embodiment, the background string is channel program information.

In one embodiment, the anti-pirate data of the set-top box or the channel is set to further include a watermark display mechanism, and the clear code is controlled to be displayed in the playback screen of the pirated set-top box according to the watermark display mechanism The time of the watermark.

In one embodiment, according to the watermark coding rule table, the clear watermark of the playback screen of the stolen recorder top box is reverse-encoded to analyze from the clear code watermark of the playback screen of the stolen recorder top box Get the user identification code of the stolen recorder top box.

In one embodiment, image processing technology is used to perform the reverse encoding.

Therefore, the present invention has the following technical advantages:

1. Impossibility: The special watermark converts the user identification code information into font color and hides it in the program schedule information, so that the thief does not know that it has been locked.

2. Robustness: The watermark can dynamically appear in various places of the screen (such as four corners), and it is not easy to be obscured.

3. Timeliness and identification: It has the ability to quickly identify the box on the stolen recorder, and can quickly convert the program schedule information into the user identification code of the thief.

It can be seen from the above that the clear code watermark of the present invention allows the user identification code of the stolen recorder top box to be displayed in the corresponding color on the channel program information of the background string of the playback screen of the stolen recorder top box. It affects the user’s viewing of the channel, and it is difficult for the thief to know that he has been locked. It is also helpful for the remote forensic personnel to monitor the playback screen of the stolen recorder’s top box directly from The color of the clear watermark interprets the corresponding user identification code, which makes the use of anti-pirate recording more convenient and practical.

1‧‧‧Channel Anti-Piracy Recording System

10‧‧‧Anti-theft recording detection and management subsystem

11‧‧‧Monitoring Module

12‧‧‧Anti-piracy management module

13‧‧‧Reverse coding module

20‧‧‧Set-top box

21‧‧‧Client Anti-Piracy Module

30‧‧‧Background string

40‧‧‧Clear code floating watermark

S1~S5‧‧‧Step

Figure 1 is a schematic structure diagram of the channel anti-pirate recording system of the present invention; Figure 2 is a schematic diagram of the clear watermark displayed on the playback screen of the present invention; and Figure 3 is a flowchart of the steps of the method of anti-pirate recording of channels of the present invention.

The following specific examples illustrate the implementation of the present invention. Those familiar with the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification.

It should be noted that the structure, ratio, size, etc. shown in the drawings in this manual are only used to match the content disclosed in the manual for the understanding and reading of those who are familiar with the art, and are not intended to limit the implementation of the present invention. Therefore, it does not have any technical significance. Any structural modification, proportional relationship change or size adjustment, without affecting the effects and objectives that can be achieved by the present invention, should still fall within the scope of the present invention. The technical content disclosed by the invention can be covered.

Figure 1 is a schematic structural diagram of the system 1 for channel anti-piracy recording of the present invention. In one embodiment, the system 1 is an Internet Protocol Television (IPTV) channel anti-pirate recording system. As shown in the figure, the system 1 includes: anti-theft recording detection and management subsystem 10, monitoring module 11, anti-theft recording management module 12, anti-encoding module 13, set-top box 20, and client anti-theft recording Module 21, wherein the anti-theft recording detection and management subsystem 10 is connected to the set-top box 20 through a wired or wireless network, the monitoring module 11, the anti-theft recording management module 12, and the anti-coding module 13 It runs in the anti-theft recording detection and management subsystem 10 of the system 1, and the user-side anti-theft recording module 21 runs in the set-top box 20 of the system 1.

In one embodiment, the anti-theft detection and management subsystem 10 is a cloud server or a remote server, but it is not limited to this.

The monitoring module 11 obtains the monitoring data of the set-top box 20. The monitoring data includes the set-top box and the channel played by the set-top box. Generated when the time is set.

In one embodiment, the monitoring module 11 actively detects whether the set-top box 20 is playing the same channel for more than a preset time. If so, the monitoring data of the set-top box 20 is generated, and the monitoring module 11 may also receive The monitoring data of the set-top box 20 provided by an external terminal (not shown), wherein the external terminal is a telecommunication police or another detection system, but not limited to this.

The anti-piracy management module 12 includes a watermark coding rule table that converts the user identification code of the set-top box 20 into a font color, and sets the set-top box or the channel according to the monitoring data obtained by the monitoring module 11 The anti-pirated data of, where the anti-pirated data includes an anti-pirated recording mechanism and a watermark display mechanism, and the anti-pirated recording mechanism includes the monitoring data and anti-pirated recording time period.

In one embodiment, the user identification code is a variety of words, such as numbers, words in various languages, and so on.

In one embodiment, the anti-piracy management module 12 can set a watermark coding rule table. For example, in the watermark coding rule table, red represents 0, green represents 1, blue represents 2, yellow 3, white 4, and purple. 5 and coffee 6, but not limited to this.

The user-side anti-theft recording module 21 obtains the user identification code of the set-top box 20 from the set-top box 20, and obtains the watermark coding rule table and the anti-theft recording data from the anti-theft recording management module 12 to detect Test whether the set-top box 20 conforms to the anti-theft recording mechanism in the anti-theft recording data, and when the set-top box 20 conforms to the anti-theft recording mechanism in the anti-theft recording data, it is made to comply with the anti-theft recording data The set-top box 20 of the anti-theft recording mechanism is a stolen recorder-top box to display a clear coded watermark in the playback screen of the stolen recorder-top box, wherein the clear coded watermark is the stolen recorder-top box User ID The font color corresponding to the watermark coding rule table is sequentially converted to the background character string of the playing screen of the top box of the stolen recorder.

For example, suppose the monitoring data of the anti-piracy recording mechanism are set-top box 20 and channel A, which means that the user of set-top box 20 is suspected of pirating the program of channel A in the past time, and when the anti-piracy recording mechanism When the anti-theft recording time period of is set to the time of the whole day tomorrow, the client anti-theft recording module 21 will detect whether the set-top box 20 meets the anti-theft recording in the anti-theft data within the time of tomorrow Mechanism, if the set-top box 20 starts to play channel A during the whole day of tomorrow, the set-top box 20 can be regarded as a stolen set-top box, but it is not limited to this.

In one embodiment, the anti-theft recording mechanism may also include a continuous playing time, so that when the set-top box 20 starts to play channel A throughout the day tomorrow and reaches the continuous playing time, the client anti-theft recording module 21 The set-top box 20 is recognized as a stolen recorder-top box, but it is not limited to this.

In one embodiment, the background string is channel program information, but it is not limited to this.

In one embodiment, the client anti-pirate recording module 21 controls the time for displaying the clear watermark in the playback screen of the pirated recorder top box according to the display mechanism of the watermark, wherein the watermark display mechanism Including display time, non-display time, or how long it takes to repeat the display, but not limited to this.

The anti-encoding module 13 reverse-encodes the clear watermark of the playback screen of the stolen recorder top box according to the watermark encoding rule table, so as to parse the clear code watermark of the playback screen of the stolen recorder top box Get the user identification code of the stolen recorder top box.

In one embodiment, the inverse encoding module 13 uses image processing technology to perform the inverse encoding to parse the font color of the plain code watermark to obtain the user identification code of the stolen recorder top box.

In one embodiment, the playback screen can be displayed on a display (not shown) in the anti-theft detection and management subsystem 10 or a display connected to the set-top box 20, but it is not limited to this.

Figure 2 is a schematic diagram of the clear watermark of the present invention displayed on the playback screen. As shown in the figure, suppose that the user identification code of the stolen recorder top box obtained by the client anti-theft recording module 21 is 10622345, and the red represents 0, green represents 1, and blue represents 2 in the watermark coding rule table. , Yellow 3, White 4, Purple 5, and Coffee 6. The background string 30 is the channel program information "The next program to be played is 30 minutes of football highlights", and the user ID of the stolen recorder box corresponds to the float The font color of the watermark coding rule table is sequentially converted to the background character string 30 of the playback screen of the top box of the stolen recorder, so that the background character string 30 "The next broadcast program is 30 minutes of football highlights" is displayed in green. , "One" shows red, "one" shows coffee color, "broadcast" shows blue, "plays" shows blue, "section" shows yellow, "mesh" shows white and "yes" shows purple, and make it have font color "The next program to be played is" is the clear watermark 40.

At this time, the anti-encoding module 13 located in the anti-piracy detection and management subsystem 10 can inverse-encode the clear watermark 40 in the background string 30 "The next program is 30 minutes of football." Analyze the user identification code of the stolen recorder top box as 10622345 from the clear watermark 40 of the playback screen of the stolen recorder top box, which means that the user with the user identification code of 10622345 is the thief. It should be understood that the display in the anti-theft recording detection and management subsystem 10 can also directly display the playback screen of the stolen recorder top box, so as to provide forensics personnel to conduct anti-theft recording detection according to the watermark coding rule table. The user identification code of the stolen recorder top box represented by the clear watermark of the playback screen is interpreted on the display in the measurement and management subsystem 10.

Since the clear watermark 40 is a part of the channel program information of the background string 30, the pirate of the pirated recorder top box is not clear that it has been locked, and it will not affect the user's viewing of the channel.

Figure 3 is a flowchart of the steps of the method of anti-pirate recording of channels of the present invention. As shown in the figure, the method includes the following steps:

In step S1, the monitoring data of the set-top box is obtained, wherein the monitoring module 11 is made to obtain the monitoring data of the set-top box 20, and the monitoring data includes the set-top box 20 and the channel played by the set-top box 20, The monitoring data is generated when the set-top box 20 plays the same channel for more than a preset time.

In step S2, a watermark coding rule table is set, in which the anti-piracy management module 12 is made to set a watermark coding rule table, wherein the watermark coding rule table is the conversion of the user identification code of the set-top box into font color.

In step S3, the anti-theft recording data of the set-top box or the channel is set according to the monitoring data, wherein the anti-theft recording management module 12 is caused to set the anti-theft recording of the set-top box 20 or the channel according to the monitoring data The anti-pirated data includes an anti-pirated recording mechanism and a watermark display mechanism, and the anti-pirated recording mechanism includes the monitoring data and an anti-pirated recording period.

In step S4, when the set-top box complies with the anti-theft recording mechanism in the anti-theft data, the set-top box is set as a stolen recorder-top box to display in the playback screen of the stolen recorder-top box Clear watermark, in which the client anti-theft recording module 21 is made to detect whether the set-top box 20 conforms to the anti-theft recording mechanism in the anti-theft recording data, and if so, it is made to comply with the anti-theft recording mechanism in the anti-theft recording data. The set-top box 20 of the stolen recording mechanism is a stolen recorder top box, which displays a clear watermark in the playback screen of the stolen recorder top box, wherein the clear code watermark is used to identify the user of the stolen recorder top box Code corresponding to the floating water The font color of the printed coding rule table is sequentially converted to the background character string of the playback screen of the top box of the stolen recorder (as shown in Figure 2).

In one embodiment, the background string is channel program information, but it is not limited to this.

In one embodiment, the user-side anti-pirate recording module 21 in step S4 controls the time for displaying the clear watermark in the playback screen of the pirated recorder top box according to the display mechanism of the watermark, wherein: The display mechanism of the watermark includes display time, non-display time, or repetitive display after how long, but it is not limited to this.

In step S5, the clear code watermark is reverse-encoded, so as to parse out the user identification code of the stolen recorder top box from the clear code watermark, wherein the reverse coding module 13 is made to pair according to the watermark coding rule table The clear code watermark of the playback screen of the stolen recorder top box is reverse-encoded, or the forensic searcher can parse out the clear code watermark of the playback screen of the stolen recorder top box according to the watermark coding rule table The user identification code of the top box of the stolen recorder.

In one embodiment, the inverse encoding module 13 in step S5 uses image processing technology to perform the inverse encoding.

It can be seen from the above that the clear code watermark of the present invention allows the user identification code of the stolen recorder top box to be displayed in the corresponding color on the channel program information of the background string of the playback screen of the stolen recorder top box. It affects the user’s viewing of the channel, and it is difficult for the thief to know that he has been locked. It is also helpful for the remote forensic personnel to monitor the playback screen of the stolen recorder’s top box directly from The color of the clear watermark interprets the corresponding user identification code, which makes the use of anti-pirate recording more convenient and practical.

The above-mentioned embodiments are used to exemplify the principles and effects of the present invention, but not to limit the present invention. Anyone who is familiar with this technique can modify the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the rights of the present invention should be listed in the scope of patent application described later.

1‧‧‧Channel Anti-Piracy Recording System

10‧‧‧Anti-theft recording detection and management subsystem

11‧‧‧Monitoring Module

12‧‧‧Anti-piracy management module

13‧‧‧Reverse coding module

20‧‧‧Set-top box

21‧‧‧Client Anti-Piracy Module

Claims (10)

A channel anti-theft recording system includes: a monitoring module, which obtains monitoring data of a set-top box, the monitoring data includes the set-top box and the channel played by the set-top box; an anti-theft recording management module, It contains a watermark coding rule table that converts the user identification code of the set-top box into font color, and sets the anti-pirate data of the set-top box or the channel based on the monitoring data, wherein the anti-pirate data includes The monitoring data and the anti-theft recording mechanism during the anti-theft recording period; and the user-side anti-theft recording module is executed in the set-top box to receive the user identification code of the set-top box, the watermark coding rule table and For the anti-pirated data, when the set-top box complies with the anti-pirated recording mechanism in the anti-pirated data, the set-top box is set as a stolen recorder-top box, so as to be displayed in the playback screen of the stolen recorder-top box Display the clear code watermark, where the clear code watermark is the user identification code of the stolen recorder top box corresponding to the font color of the watermark coding rule table and is sequentially converted to the background string of the playback screen of the stolen recorder top box on. Such as the system described in item 1 of the scope of patent application, wherein the background string is channel program information. For example, the system described in item 1 of the scope of patent application, wherein the anti-piracy data set by the anti-piracy management module further includes a watermark display mechanism, so that the client anti-piracy module can rely on the float The watermark display mechanism controls the time when the clear watermark is displayed in the playback screen of the stolen recorder top box. For example, the system described in item 1 of the scope of patent application includes: The anti-encoding module, according to the watermark coding rule table, reverse-encodes the clear watermark of the playback screen of the stolen recorder top box to parse the clear code watermark of the playback screen of the stolen recorder top box Get the user identification code of the stolen recorder top box. For example, in the system described in item 4 of the scope of patent application, the inverse encoding module uses image processing technology to perform the inverse encoding. A method for channel anti-pirate recording includes: obtaining monitoring data of a set-top box, where the monitoring data includes the set-top box and the channel played by the set-top box; setting a watermark coding rule table, wherein the The watermark coding rule table is to convert the user identification code of the set-top box into font color; set the anti-pirate data of the set-top box or the channel according to the monitoring data, wherein the anti-pirate data includes the monitoring data Data, anti-theft recording mechanism during the anti-theft recording period; and when the set-top box conforms to the anti-theft recording mechanism in the anti-theft data, set the set-top box as a pirated set-top box for the purpose of the pirated recording The clear code watermark is displayed on the playback screen of the set-top box, where the clear code watermark is to sequentially convert the user identification code of the stolen set-top box to the font color of the watermark coding rule table to the stolen recorder On the background string of the box playing screen. Such as the method described in item 6 of the scope of patent application, wherein the background string is channel program information. For example, the method described in item 6 of the scope of patent application, wherein the anti-pirating data of the set-top box or the channel further includes a watermark display mechanism to control the pirate based on the watermark display mechanism The time of the clear watermark is displayed in the playback screen of the box. As the method described in item 6 of the scope of patent application, it also includes: According to the watermark coding rule table, the clear code watermark of the playback screen of the stolen recorder top box is reverse-encoded, so as to parse the clear code watermark of the playback screen of the stolen recorder top box to parse the stolen recorder. The user identification code of the box. The method described in item 9 of the scope of patent application, wherein the reverse encoding is performed by using image processing technology.

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