CN105916040A - Trigger method and system of secondary event in television broadcasting - Google Patents
Trigger method and system of secondary event in television broadcasting Download PDFInfo
- Publication number
- CN105916040A CN105916040A CN201610331657.5A CN201610331657A CN105916040A CN 105916040 A CN105916040 A CN 105916040A CN 201610331657 A CN201610331657 A CN 201610331657A CN 105916040 A CN105916040 A CN 105916040A
- Authority
- CN
- China
- Prior art keywords
- secondary event
- signal
- watermark information
- watermark
- event
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47214—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/20—Arrangements for conditional access to broadcast information or to broadcast-related services on secondary editing information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/654—Transmission by server directed to the client
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8358—Generation of protective data, e.g. certificates involving watermark
Abstract
The invention discloses a trigger method and a trigger system of secondary events in television broadcasting. The method comprises the steps of: assigning different watermark information to different secondary events, and registering to the database; adding the watermark information corresponding to one secondary event at a time point position corresponding to trigger of the secondary event into a program broadcasting signal; detecting the program broadcasting signal, and identifying the watermark information in the program broadcasting signal; determining the secondary event corresponding to the watermark information according to the watermark information; and sending a trigger signal to auxiliary signal broadcasting equipment, so as to broadcast an auxiliary signal of the secondary event. The trigger system comprises a watermark assigning module, a watermark adding module, a database and a watermark identification module. The trigger system has the advantages of simple manufacturing and more convenient work flow, and the secondary event can be triggered accurately and timely without manual intervention, thereby reducing the pressure of the staff on duty.
Description
Technical field
The present invention relates to radio and television and broadcast technical field, specifically, relate to a kind of television broadcasting
The triggering method of middle secondary event and system.
Background technology
In radio and television broadcast technical field, in addition to the video/audio signal of broadcast items, also need
Broadcast some auxiliary signals to supplement as necessary.Auxiliary signal mainly has following several form:
Station symbol, is used as the mark of channel;
Clock, does the prompting of time in the specific time;
Footmark, can as station symbol supplement, it is also possible to as the display of some other signals, example
Such as TV play title, little advertising sign etc.;
Captions, different with the captions of program self band, can be used to display the most de novo newly
News event, weather forecast, advertisement etc.;
Countdown, may be used for the prompting before specific program starts broadcasting;
Display advertising after TV play, generally shows during TV play sheet caudal flexure, the picture of employing or
Translucent picture, with advertisement.
In television broadcasting, the broadcast process of above-mentioned various auxiliary signals, it is referred to as the two grades of things broadcasted
Part.
Secondary event is mainly while normal broadcast video-audio program, to station symbol, clock, word
The auxiliary signals such as curtain are controlled.In radio data system, secondary event obtains more widely
Application.
At present, secondary event mainly has following several control mode, but, program was broadcasted
Certain particular point in time in journey, needs to trigger secondary event for specific program pictures, below
Mode is tackled the most relatively difficult.Make a concrete analysis of as follows:
The first: in manufacturing process, auxiliary signal is applied directly in video-audio program.This
The manufacturing process of mode is the most comparatively laborious, and program rebroadcasting when, if need not auxiliary
Help signal, in addition it is also necessary to again programme, waste time and energy.
The second: Non-follow control auxiliary signal, is triggered two the most by hand by operator on duty
Level event.Although can passing through manually to realize the triggering of secondary event, but precision being not easily controlled,
Probability of makeing mistakes is the biggest, and considerably increases the pressure of operator on duty.
The third: broadcast and control programme-control auxiliary signal.Broadcasting in video and audio controls in programme,
Increase secondary event and broadcast task.After broadcasting the loading programme of control program, broadcast according to secondary event
Go out on missions, auxiliary signal playing device is sent the orders such as broadcasting, stopping.Auxiliary signal is broadcasted and is set
The standby order according to broadcast system, performs broadcast.For this control mode, owing to needs broadcast
Control program know in advance this time point to send control command, but broadcast control program be difficult to know
This time point of road, so, this mode is the most infeasible.
4th kind: some senior auxiliary signal equipment itself can edit broadcast plan, according to plan
Broadcast.Broadcasting in the works, when broadcasting according to the job order of secondary event, substantially cannot accomplish pin
The broadcast picture of certain specific broadcast time point is triggered secondary event.
Thus, never have good solution for accurately triggering of secondary event.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, it is provided that Yi Zhong electricity
Depending on the triggering method of secondary event and system in broadcasting, in order to realize the accurate triggering of secondary event.
In order to solve above-mentioned technical problem, according to an aspect of the present invention, the invention provides one
The triggering method of secondary event in kind television broadcasting, wherein, including:
Distribute different watermark informations for different secondary events, and be registered to data base;
In program broadcasting signal, the corresponding time point position triggering secondary event adds and described two grades
The watermark information that event is corresponding;
Detect described program broadcasting signal, identify the watermark information in described program broadcasting signal;
According to described watermark information, determine the secondary event corresponding with described watermark information;
Send to touch and signal to auxiliary signal playing device, in order to broadcast the auxiliary of described secondary event
Signal.
Preferably, described watermark information is digital audio frequency watermark information.
Preferably, described digital audio frequency watermark information is multidigit character string.
Preferably, described auxiliary signal includes for broadcasting station symbol, footmark, clock, captions, falling
Timing or the TV signal of display advertising.
In order to solve above-mentioned technical problem, according to another aspect of the present invention, the invention provides
The triggering system of secondary event in a kind of television broadcasting, including:
Watermark distribution module, for the watermark information different for the distribution of each secondary event;
Module is added in watermark, for needing to trigger the time point of secondary event in program broadcasting signal
Position increases the watermark information corresponding with described secondary event;
Data base, for storing the watermark information that secondary event is corresponding;With
Watermark identification module, detects described program broadcasting signal, is used for identifying in program broadcasting signal
Watermark information, and according to described watermark information, determine two corresponding with described watermark information grade thing
Part, transmission is touched and is signaled to auxiliary signal playing device, in order to broadcast the auxiliary of described secondary event
Signal.
Preferably, described watermark interpolation module includes:
Site determines unit, is used for detecting program broadcasting signal, determines and needs to trigger secondary event
Time point;
Query unit, for according to described secondary event, inquires about and described two grades of things in data base
The watermark information that part is corresponding;With
Adding device, the water described in the interpolation of position of time point described in described program broadcasting signal
Official seal ceases.
Preferably, described watermark identification module includes:
Extraction unit, for extracting the water in program broadcasting signal from described program broadcasting signal
Official seal ceases;
Secondary event determines unit;According to described watermark information, inquiry and institute from described data base
State the secondary event that watermark information is corresponding;With
Trigger signal transmitting unit, send to auxiliary signal playing device tactile according to described secondary event
Signal.
The present invention need not be applied directly in video-audio program auxiliary signal, makes simple, and,
When this program of replaying is without auxiliary signal, only need to not access or close auxiliary signal equipment
, convenient in workflow.And the present invention can reach to trigger two accurately and timely
Level event, is not required to manual intervention, alleviates the pressure of operator on duty.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, the present invention above-mentioned and other
Objects, features and advantages will be apparent from, in the accompanying drawings:
Fig. 1 is the flow chart of secondary event triggering method of the present invention;
Fig. 2 is the work structuring theory diagram that secondary event of the present invention triggers system;
Fig. 3 is the structural principle block diagram that module is added in watermark of the present invention;
Fig. 4 is the structural principle block diagram of watermark identification module of the present invention.
Detailed description of the invention
The invention provides the triggering method of secondary event in a kind of television broadcasting, as shown in Figure 1:
Step S1, for the watermark information that different secondary event distribution is different, and is registered to data
Storehouse.
Step S2, during the making of program material or examining, finds and needs to trigger two grades of things
The time point of part, adds the watermark information corresponding with described secondary event in program broadcasting signal.
Step S3, during program broadcasts, detects described program broadcasting signal, identifies described
Watermark information in program broadcasting signal.
Step S4, auxiliary signal playing device, according to audio watermark information, is searched data base, is determined
Corresponding secondary event, broadcasts the auxiliary signal corresponding with described secondary event.
Wherein, described watermark information is digital audio frequency watermark information, in step s 2, at program
Broadcasting signal adds the watermark information corresponding with described secondary event, specifically digital watermarking is led to
Cross watermarking algorithm, be embedded in the audio signal of program broadcasting signal, but again audio frequency is believed
Number original tonequality is without the biggest impact, or human ear its impact imperceptible.By the present invention in that use
Human ear (sound frequency that in general, human ear can identify is at 20 20000 hertz) can not
The frequency identified, is needing the time point triggering secondary event to increase the marking, is triggering two grades with this
Event.Both original tonequality will not be caused too much influence, nor affect on spectators' audition to program
Impression.
When generating audio frequency watermark, every kind of corresponding system of audio watermark information there is particular meaning
Content, thus, data base preserves an information comparison list, is used for recording audio frequency water
Print and the corresponding relation of secondary event.Two grades of things of the corresponding specific meanings of each audio frequency watermark
Part, such as station symbol, footmark, clock, certain captions, countdown or display advertising etc..Wherein,
Described audio frequency watermark can be designed as a multidigit character string, in order to express different secondary events.
In step 3, once detect in program broadcasting signal that there is watermark information, pass through watermark
Extracting method extracts described watermark information.
Present invention also offers the triggering system of secondary event, as in figure 2 it is shown, include:
Watermark distribution module 1, for the watermark information different for the distribution of each secondary event;
Module 2 is added in watermark, for needing to trigger the time of secondary event in program broadcasting signal
Point increases the watermark information corresponding with described secondary event;
Data base 3, for storing the watermark information that secondary event is corresponding;With
Watermark identification module 4, detects described program broadcasting signal, is used for identifying program broadcasting signal
In watermark information, and according to described watermark information, determine two corresponding with described watermark information grade
Event, transmission is touched and is signaled to auxiliary signal playing device, in order to broadcast the auxiliary of described secondary event
Help signal.
It is described as follows:
First, watermark distribution module 1 it is that each secondary event distributes different watermark informations, and
The corresponding relation WMn-EVn of watermark information and secondary event is registered in data base 3.Each
The corresponding secondary event EV of individual watermark WM.
Program making module P1 utilizes material-making to complete the television broadcasting signal for broadcasting
Signal A1.Watermark is added module 2 and is detected program broadcasting signal Signal A1, finds needs to touch
Send out the time point of secondary event, in this position, increase and two to program broadcasting signal Signal A1
The watermark information that level event is corresponding, and the broadcasting signal Signal A2 adding watermark information is sent out
Give program and broadcast module P2.While program broadcasts module P2 broadcasting signal Signal A2,
Watermark identification module 4 detects described program broadcasting signal Signal A2, and extracts water therein
Official seal breath WMn, according to the watermark information stored in data base and the corresponding relation of secondary event
WMn-EVn, obtains concrete secondary event EVn, thus sends out to auxiliary signal playing device P4
Send the triggering signal of correspondence, by auxiliary signal playing device P4 by auxiliary signal making apparatus P3 system
The corresponding auxiliary signal Signal B made sends, thus completes the broadcast of secondary event.
Specifically, described watermark adds module as it is shown on figure 3, include:
Site determines unit 21, is used for detecting program broadcasting signal Signal A1, determines that needs touch
Send out the time point of secondary event EVn;
Query unit 22, for according to described secondary event EVn, inquires about and institute in data base 3
State watermark information WMn corresponding for secondary event EVn;With
Adding device 23, in the position of described time point, utilizes watermarking algorithm, at described joint
Mesh broadcasting signal Signal A1 embeds described watermark information WMn.
Described watermark identification module 4 as shown in Figure 4, including:
Extraction unit 41, utilizes watermark extraction algorithm, from described program broadcasting signal Signal A2
In extract the watermark information WMn in program broadcasting signal;
Secondary event determines unit 42;According to described watermark information WMn, from described data base 3
Middle inquiry and described secondary event EVn corresponding for watermark information WMn;With
Trigger signal transmitting unit 43, according to described secondary event EVn to auxiliary signal playing device
P4 sends and triggers signal.
Concrete Application Example: in certain variety show, needs to broadcast host or welcome guest's clothing
This secondary event of advertisement.During program is play, point out by providing captions, make spectators
Can apply the shaking of mobile terminal APP (or other method that can send startup information, as
Long press certain key) function, enter host or welcome guest with money clothing on-line shop choosing clothes.Should at this
With in embodiment, above-mentioned broadcast content (for the captions of prompting) is a concrete two grade thing
Part, is completed by auxiliary signal playing device, and the time requirement of this caption playing is punctual.This
Invention, when program making, is added module by watermark and is added numeral sound at the time point needing to broadcast
Frequently watermark, this watermark is corresponding with this secondary event of captions broadcasting one section of described above.At program
During broadcast, watermark identification module detection program broadcasting signal, when program broadcasting signal being detected
In watermark information time, parse the secondary event corresponding with described watermark information, trigger auxiliary letter
Number playing device broadcasts corresponding auxiliary signal, thus by under the caption playing of described above to program
On the screen of side.
The present invention need not be applied directly in video-audio program auxiliary signal, makes simple, and,
When this program of replaying is without auxiliary signal, only need to not access or close auxiliary signal equipment
, convenient in workflow.And the present invention can reach to trigger two accurately and timely
Level event, is not required to manual intervention, alleviates the pressure of operator on duty.
According to embodiments of the invention as described above, these embodiments do not have detailed descriptionthe own
Details, be also not intended to the specific embodiment that this invention is only described.Obviously, as described above,
Can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to
Preferably explain the principle of the present invention and actual application, so that skilled artisan's energy
The present invention and amendment on the basis of the present invention is utilized to use well.Protection scope of the present invention
Should be defined in the range of standard with the claims in the present invention.
Claims (7)
1. a triggering method for secondary event in television broadcasting, wherein, including:
Distribute different watermark informations for different secondary events, and be registered to data base;
In program broadcasting signal, the corresponding time point position triggering secondary event adds and described two grades
The watermark information that event is corresponding;
Detect described program broadcasting signal, identify the watermark information in described program broadcasting signal;
According to described watermark information, determine the secondary event corresponding with described watermark information;
Send to touch and signal to auxiliary signal playing device, in order to broadcast the auxiliary of described secondary event
Signal.
2. the triggering method of secondary event in television broadcasting as claimed in claim 1, wherein, institute
Stating watermark information is digital audio frequency watermark information.
3. the triggering method of secondary event in television broadcasting as claimed in claim 2, wherein, institute
Stating digital audio frequency watermark information is multidigit character string.
4. the triggering method of secondary event in television broadcasting as claimed in claim 1, wherein, institute
State auxiliary signal to include for broadcasting station symbol, footmark, clock, captions, countdown or display advertising
TV signal.
5. a triggering system for secondary event in television broadcasting, including:
Watermark distribution module, for the watermark information different for the distribution of each secondary event;
Module is added in watermark, for needing to trigger the time point of secondary event in program broadcasting signal
Position increases the watermark information corresponding with described secondary event;
Data base, for storing the watermark information that secondary event is corresponding;With
Watermark identification module, detects described program broadcasting signal, is used for identifying in program broadcasting signal
Watermark information, and according to described watermark information, determine two corresponding with described watermark information grade thing
Part, transmission is touched and is signaled to auxiliary signal playing device, in order to broadcast the auxiliary of described secondary event
Signal.
6. the triggering system of secondary event in television broadcasting as claimed in claim 5, wherein, institute
State watermark interpolation module to include:
Site determines unit, is used for detecting program broadcasting signal, determines and needs to trigger secondary event
Time point;
Query unit, for according to described secondary event, inquires about and described two grades of things in data base
The watermark information that part is corresponding;With
Adding device, the water described in the interpolation of position of time point described in described program broadcasting signal
Official seal ceases.
7. the triggering system of secondary event in television broadcasting as claimed in claim 5, wherein, institute
State watermark identification module to include:
Extraction unit, for extracting the water in program broadcasting signal from described program broadcasting signal
Official seal ceases;
Secondary event determines unit;According to described watermark information, inquiry and institute from described data base
State the secondary event that watermark information is corresponding;With
Trigger signal transmitting unit, send to auxiliary signal playing device tactile according to described secondary event
Signal.
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CN104519373A (en) * | 2014-12-16 | 2015-04-15 | 微梦创科网络科技(中国)有限公司 | Media program interaction method and related equipment |
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CN104780400A (en) * | 2014-01-10 | 2015-07-15 | 威数意动股份有限公司 | Mobile advertisement push system and method for operating mobile electronic device thereof |
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2016
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WO2007072327A3 (en) * | 2005-12-22 | 2007-09-20 | Koninkl Philips Electronics Nv | Script synchronization by watermarking |
CN103763578A (en) * | 2014-01-10 | 2014-04-30 | 北京酷云互动科技有限公司 | Method and device for pushing program associated information |
CN104780400A (en) * | 2014-01-10 | 2015-07-15 | 威数意动股份有限公司 | Mobile advertisement push system and method for operating mobile electronic device thereof |
CN104320719A (en) * | 2014-11-14 | 2015-01-28 | 武汉大学 | Television program interaction participating method and system based on audio watermarking |
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Application publication date: 20160831 |