CN114363644B - Time delay method, time delay device and storage medium - Google Patents
Time delay method, time delay device and storage medium Download PDFInfo
- Publication number
- CN114363644B CN114363644B CN202111534820.5A CN202111534820A CN114363644B CN 114363644 B CN114363644 B CN 114363644B CN 202111534820 A CN202111534820 A CN 202111534820A CN 114363644 B CN114363644 B CN 114363644B
- Authority
- CN
- China
- Prior art keywords
- time
- signal
- video segment
- playing
- delay
- 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.)
- Active
Links
Images
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
The application provides an HVD solid-state delayer device and a method, comprising the following steps: the input module is used for receiving a high-definition signal; the processing module is used for processing the high-definition signals and generating multi-path output signals; a control module for controlling selection of an inserted pre-recorded video segment and/or adaptive selection of one of the multiplexed output signals; and the output module is used for outputting the output signal selected by the control module. According to the method and the device, the important time node and the international standard time can be synchronized by utilizing the prerecorded video clip, the problem that the time difference exists between the important time node and the international standard time due to time delay of a conventional delayer is solved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of shooting, manufacturing, storing and transmitting ultra-high definition/high definition VR video programs and network videos, in particular to a time delay method and a time delay device.
Background
In view of safe live broadcast, a delay device is usually used for controlling the playing of live broadcast programs in the existing live broadcast programs, so as to prevent the occurrence of improper content of live broadcast suddenly. The prior art delayer generally records the live program several seconds or several minutes before the scheduled start playing time, stores the recorded live program in the delayer, and plays the content stored in the delayer by the scheduled start playing time, thereby forming a time difference. Technical personnel can cut the content which is not suitable for playing in the delay time and perform other basic processing, thereby ensuring the safety and the continuity of the program.
Not all scenarios may use a delay, for example: the scene of the sound broadcast by the zero clock in spring and late is obviously not suitable if the delay of several seconds or minutes still exists. In a tv entertainment live program, the delayed broadcasting is acceptable for the viewer, but if the broadcasting program of the important time node has a delay that is unacceptable for the viewer, such as the above-mentioned scene of beginning of spring and end of night. In the time delay method in the prior art, the important time and the conventional time are not distinguished. Therefore, when important time exists in the broadcast program, the technical delay broadcast by using the delayer technology is abandoned in consideration of the acceptance of the audience. However, if the delay technique is not used, the emergency cannot be dealt with, the security of the program cannot be ensured, and adverse effects are brought to the emergency.
Disclosure of Invention
To solve the above problems, the present application proposes an HVD solid-state delayer device, characterized by comprising:
the input module is used for receiving a high-definition signal;
the processing module is used for processing the high-definition signals and generating multi-path output signals;
the control module is used for controlling and selecting the inserted pre-recorded video clip and/or adaptively selecting one path of the multi-path output signals;
and the output module is used for outputting the output signal selected by the control module.
Optionally, the HVD solid-state time delay device further includes:
the high-definition signal in the input module is any one of an HDMI signal, an SDI signal, a DVI signal and a VGA signal.
Optionally, the HVD solid-state time delay device further includes:
the multi-path output signals in the processing module at least comprise one path of signal which is a non-delay output signal, and the other paths of signal which are delay output signals with different delay time lengths.
Optionally, the HVD solid-state time delay device further includes: the timing module is used for determining the time distance between the current playing and displaying time point and the appointed time point, and the unit of the time distance is millisecond.
Optionally, the designated time point is a network commodity first-purchase starting time point.
Optionally, the processing module further includes:
and when the timing module reaches a specified time distance threshold value, the control module selects the truncated frame and the pre-recorded video segment, and inserts the pre-recorded video segment into the high-definition signal.
Optionally, the pre-recorded video segments are N video segments with different durations on the same theme, so that the control module can flexibly call the pre-recorded video segments, and the specified time point is completely synchronized with the international standard time without any delay.
Optionally, the truncated frame is selected to ensure signal continuity and its temporal proximity to N video segments of different durations.
The application correspondingly provides a time delay method, which is applied to an HVD solid-state time delay device,
the time delay method specifically comprises the following steps:
receiving a high-definition signal;
processing the high-definition signal to generate a plurality of paths of output signals;
selecting the inserted pre-recorded video terminal and/or adaptively selecting one path of the multi-path output signals;
outputting the output signal selected by the control module;
selecting a truncated frame and a prerecorded video segment, and inserting the high-definition signal into the prerecorded video segment;
the processing of the high-definition signal further comprises: selecting a truncated frame and a prerecorded video segment, and inserting the high-definition signal into the prerecorded video segment; the method comprises the steps that a truncation frame is selected according to the inter-frame distance, when the distance designated moment reaches a preset threshold value, the distance between two frames is obtained, a plurality of values with larger distances between the two frames are selected, and the next frame in the two frames can be used as a candidate truncation frame; the condition for determining the final truncated frame from the plurality of candidate truncated frames is: when a selected video segment needs to be merged from the truncated frame and played at a frame rate lower than a double rate or higher than 1 time rate, human eyes cannot perceive playing difference;
the method further comprises: obtaining the minimum time length L in N prerecorded video clips with different time lengths of the same theme min And a maximum duration L max (ii) a ObtainTaking a time distance D between a currently played and displayed time point and an appointed time point;
1) if D is<L min The control module selects the minimum duration L min Corresponding pre-recorded video segment, and converting the L min The corresponding prerecorded video segment is merged into the currently playing signal and goes from L min The corresponding pre-recorded video clip is played in a mode of being higher than 1 time speed, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
2) if D is>L max Then the control module selects the maximum duration L max Corresponding pre-recorded video segment, and converting the L max The corresponding prerecorded video clip is merged into the currently played signal and is played in a speed lower than 1, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
3) if L is min <D<L max Then, calculate S ═ min { | D-L i I is more than or equal to 1 and less than or equal to N, and N represents the total number of corresponding time segments; l is i The time length corresponding to the ith time slice is represented; obviously, the value S is a unique value that can be determined, and then the duration T of the prerecorded video segment corresponding to S is also uniquely determined; if D is<Combining the pre-recorded video segment corresponding to the time length T into the currently played signal, and playing the signal in a speed form higher than 1 time from the pre-recorded video segment corresponding to the time length T, so that the time point of playing the program at the specified time is completely consistent with the international standard time, and no time delay exists; if D is>Combining the prerecorded video segment corresponding to the time length T into the currently played signal, and playing the prerecorded video segment corresponding to the time length T in a speed less than 1, so that the time point of playing the program at the appointed time is completely consistent with the international standard time, and no time delay exists;
4) if D is the same as the time length of a certain prerecorded video time segment, selecting the video corresponding to the video time segment to be merged into the current playing signal, and directly playing at the rate of 1 time.
The present application also proposes a computer storage medium, which stores computer program instructions for executing the above-mentioned delay method proposed in the present application.
The method has the technical effects that the time points of the played program are distinguished, the important time is appointed in advance, and in the important time, the played time point and the international standard time point are completely synchronous without any time delay; at other non-significant times, the point in time of playback may be fully synchronized or non-fully synchronized with the international standard point in time. According to the method and the device, the important time node and the international standard time can be synchronized by utilizing the prerecorded video clip, the problem that the time difference exists between the important time node and the international standard time due to time delay of a conventional delayer is solved, and the user experience is improved.
Drawings
FIG. 1 is a principal logic flow diagram of the present invention.
Detailed Description
To solve the above problem, as shown in fig. 1, the present application proposes an HVD solid-state delayer device, characterized by comprising:
the input module is used for receiving a high-definition signal;
the processing module is used for processing the high-definition signals and generating multi-path output signals;
the control module is used for controlling and selecting the inserted pre-recorded video clip and/or adaptively selecting one path of the multi-path output signals;
and the output module is used for outputting the output signal selected by the control module.
Optionally, the HVD solid-state time delay device further includes:
the high-definition signal in the input module is any one of an HDMI signal, an SDI signal, a DVI signal and a VGA signal.
Optionally, the HVD solid-state time delay device further includes:
the multi-path output signals in the processing module at least comprise one path of signal which is a non-delay output signal, and the other paths of signal which are delay output signals with different delay time lengths.
Optionally, the HVD solid-state time delay device further includes: the timing module is used for determining the time distance between the current playing and displaying time point and the appointed time point, and the unit of the time distance is millisecond.
Optionally, the specified time point is a network commodity emergency purchase starting time point, or a red packet issuing time point, a new year zero time reporting time point, a soldier reading starting time point, a major conference or project announcement time point, and the like.
Optionally, the processing module further includes:
and when the timing module reaches a specified time distance threshold value, the control module selects the truncated frame and the pre-recorded video segment, and inserts the pre-recorded video segment into the high-definition signal.
Optionally, the truncated frame is selected according to the inter-frame distance, when the distance-specifying time reaches a preset threshold (for example, 3 minutes or 1 minute), the distance between two frames is obtained, several values with a larger distance between the two frames are selected, and the latter frame of the two frames can be used as a candidate truncated frame; the condition for determining the final truncated frame from the plurality of candidate truncated frames is: it is necessary to satisfy the requirement that human eyes cannot perceive the playing difference when a selected video segment is merged from the truncated frame and played at a frame rate lower than a double rate or higher than a 1-time rate.
Optionally, the pre-recorded video segments are N video segments with different durations on the same theme, so that the control module can flexibly call the pre-recorded video segments, and the specified time point is completely synchronized with the international standard time without any delay.
Optionally, the truncated frame is selected to ensure signal continuity and its closeness to N pre-recorded video segments of different durations.
Optionally, N variants of the same topic are obtainedMinimum duration L in pre-recorded video segments of the same duration min And a maximum duration L max (ii) a Acquiring a time distance D between a currently played and displayed time point and an appointed time point;
1) if D is<L min The control module selects the minimum duration L min Corresponding pre-recorded video segment, and converting the L min The corresponding prerecorded video segment is merged into the currently playing signal and goes from L min The corresponding pre-recorded video clip is played in a mode of being higher than 1 time speed, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
2) if D is>L max Then the control module selects the maximum duration L max Corresponding pre-recorded video segment, and converting the L max The corresponding prerecorded video clip is merged into the currently played signal and is played in a speed lower than 1, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
3) if L is min <D<L max Then, calculate S ═ min { | D-L i I is more than or equal to 1 and less than or equal to N, and N represents the total number of corresponding time segments; l is i Representing the time length corresponding to the ith time slice; obviously, the value S is a unique value that can be determined, and then the duration T of the prerecorded video segment corresponding to S is also uniquely determined; if D is<Combining the pre-recorded video segment corresponding to the time length T into the currently played signal, and playing the signal in a speed form higher than 1 time from the pre-recorded video segment corresponding to the time length T, so that the time point of playing the program at the specified time is completely consistent with the international standard time, and no time delay exists; if D is>Combining the prerecorded video segment corresponding to the time length T into the currently played signal, and playing the prerecorded video segment corresponding to the time length T in a speed less than 1, so that the time point of playing the program at the appointed time is completely consistent with the international standard time, and no time delay exists;
4) if D is the same as the time length of a certain prerecorded video time segment, the video corresponding to the video time segment is selected and merged into the current playing signal, and the current playing signal is directly played at the speed of 1 time.
The application correspondingly provides a time delay method, which is applied to an HVD solid-state time delay device,
the time delay method specifically comprises the following steps:
receiving a high-definition signal by using an input module;
processing the high-definition signal by using a processing module to generate a plurality of paths of output signals;
utilizing a control module to control and select the inserted pre-recorded video end and/or self-adaptively select one path of the multi-path output signals;
and outputting the output signal selected by the control module by using an output module.
Optionally, the minimum duration L in the N pre-recorded video segments with different durations of the same theme is obtained min And a maximum duration L max (ii) a Acquiring a time distance D between a currently played and displayed time point and an appointed time point;
1) if D is<L min The control module selects the minimum duration L min Corresponding pre-recorded video segment, and converting the L min The corresponding prerecorded video segment is merged into the currently playing signal and goes from L min The corresponding prerecorded video clip starts to play in a mode of being higher than 1 time of speed, so that the time point of playing the program at the appointed time is completely consistent with the international standard time, and no time delay exists;
2) if D is>L max Then the control module selects the maximum duration L max Corresponding pre-recorded video segment, and converting the L max The corresponding prerecorded video clip is merged into the currently played signal and is played in a speed lower than 1, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
3) if L is min <D<L max Then, calculate S ═ min { | D-L i I is more than or equal to 1 and less than or equal to N, and N represents the total number of corresponding time segments; l is i Representing the time length corresponding to the ith time slice; obviously, the value S is a unique value that can be determined, and then the duration T of the prerecorded video segment corresponding to S is also uniquely determined; if D is<Combining the pre-recorded video segment corresponding to the time length T into the currently played signal, and playing the signal in a speed form higher than 1 time from the pre-recorded video segment corresponding to the time length T, so that the time point of playing the program at the specified time is completely consistent with the international standard time, and no time delay exists; if D is>Combining the pre-recorded video segment corresponding to the time length T into the currently played signal, and playing the pre-recorded video segment corresponding to the time length T in a speed lower than 1, so that the time point of playing the program at the specified time is completely consistent with the international standard time, and no time delay exists;
4) if D is the same as the time length of a certain prerecorded video time segment, selecting the video corresponding to the video time segment to be merged into the current playing signal, and directly playing at the rate of 1 time.
It should be noted that, since the delay method may correspond to the corresponding features of the apparatus, the features already present in the apparatus are not repeated in the method claims, and those skilled in the art will understand that the features already present in the apparatus can actually be included in the method claims and fall within the scope of the disclosure of the present invention.
The present application also proposes a computer storage medium, which stores computer program instructions for executing the above-mentioned delay method proposed in the present application.
It should be noted that the above embodiments and further limitations, which can be combined and used without conflict, constitute the practical disclosure of the present invention, are limited by space and are not listed, but all combinations fall within the scope of protection of the present application.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A time delay method specifically comprises the following steps:
receiving a high-definition signal;
processing the high-definition signal to generate a plurality of paths of output signals;
selecting the inserted pre-recorded video terminal and/or adaptively selecting one path of the multi-path output signals;
outputting the output signal selected by the control module;
selecting a truncated frame and a prerecorded video segment, and inserting the prerecorded video segment into the high definition signal;
the processing of the high-definition signal further comprises: selecting a truncated frame and a prerecorded video segment, and inserting the high-definition signal into the prerecorded video segment; selecting a truncated frame according to the inter-frame distance, wherein the truncated frame is determined from a plurality of candidate truncated frames; the condition for determining the final truncated frame from the plurality of candidate truncated frames is: when a selected video segment needs to be merged from the truncated frame and played at a frame rate lower than a double rate or higher than 1 time rate, human eyes cannot perceive playing difference;
the method further comprises: obtaining N numbers of presets with different time lengths of the same themeMinimum duration L in prerecorded video segment min And a maximum duration L max (ii) a Acquiring a time distance D between a currently played and displayed time point and an appointed time point;
1) if D is<L min The control module selects the minimum duration L min Corresponding pre-recorded video segment, and converting the L min The corresponding prerecorded video segment is merged into the currently playing signal and goes from L min The corresponding prerecorded video clip starts to play in a mode of being higher than 1 time of speed, so that the time point of playing the program at the appointed time is completely consistent with the international standard time, and no time delay exists;
2) if D is>L max Then the control module selects the maximum duration L max Corresponding pre-recorded video segment, and converting the L max The corresponding prerecorded video clip is merged into the currently played signal and is played in a speed lower than 1, so that the time point of playing the program at the appointed moment is completely consistent with the international standard time, and no time delay exists;
3) if L is min <D<L max Then, calculate S { | D-L { | min { | i I is more than or equal to 1 and less than or equal to N, and N represents the total number of corresponding time segments; l is i The time length corresponding to the ith time slice is represented; obviously, the value S is a determined unique value, and then the duration T of the prerecorded video segment corresponding to S is also determined uniquely; if D is<Combining the pre-recorded video segment corresponding to the time length T into the currently played signal, and playing the signal in a speed form higher than 1 time from the pre-recorded video segment corresponding to the time length T, so that the time point of playing the program at the specified time is completely consistent with the international standard time, and no time delay exists; if D is>Combining the prerecorded video segment corresponding to the time length T into the currently played signal, and playing the prerecorded video segment corresponding to the time length T in a speed less than 1, so that the time point of playing the program at the appointed time is completely consistent with the international standard time, and no time delay exists;
4) if D is the same as the time length of a certain prerecorded video time segment, selecting the video corresponding to the video time segment to be merged into the current playing signal, and directly playing at the rate of 1 time.
2. An HVD solid state delayer apparatus for implementing the delay method of claim 1, comprising:
the input module is used for receiving a high-definition signal;
the processing module is used for processing the high-definition signals and generating multi-path output signals;
the control module is used for controlling and selecting the inserted pre-recorded video clip and/or adaptively selecting one path of the multi-path output signals;
and the output module is used for outputting the output signal selected by the control module.
3. The HVD solid-state retarder device of claim 2, further comprising:
the high-definition signal in the input module is any one of an HDMI signal, an SDI signal, a DVI signal and a VGA signal.
4. The HVD solid state delayer device of claim 2, further comprising:
the multi-path output signals in the processing module at least comprise one path of signal which is a non-delay output signal, and the other paths of signal which are delay output signals with different delay time lengths.
5. The HVD solid state delayer device of claim 2, further comprising:
the timing module is used for determining the time distance between the current playing and displaying time point and the appointed time point, and the unit of the time distance is millisecond.
6. The HVD solid-state delayer device of claim 5, the specified time point is a new year zero tick time point.
7. The HVD solid-state delayer device of claim 5, the processing module further comprising:
and when the timing module reaches a specified time distance threshold value, the control module selects the truncated frame and the prerecorded video segment and inserts the prerecorded video segment into the high definition signal.
8. The HVD solid-state delayer device according to claim 7, wherein the pre-recorded video clips are N video clips of different duration of the same theme for flexible invocation by the control module, such that the specified time point is completely synchronized with the international standard time without any delay.
9. The HVD solid-state retarder device of claim 2, wherein the truncated frames are selected to ensure signal consistency and temporal proximity to the N video segments of different durations.
10. A computer storage medium storing computer instructions for executing a latency method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111534820.5A CN114363644B (en) | 2021-12-15 | 2021-12-15 | Time delay method, time delay device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111534820.5A CN114363644B (en) | 2021-12-15 | 2021-12-15 | Time delay method, time delay device and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114363644A CN114363644A (en) | 2022-04-15 |
| CN114363644B true CN114363644B (en) | 2022-09-06 |
Family
ID=81098544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111534820.5A Active CN114363644B (en) | 2021-12-15 | 2021-12-15 | Time delay method, time delay device and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114363644B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900906A (en) * | 2018-06-19 | 2018-11-27 | 网宿科技股份有限公司 | A kind of delay control method and device of live video stream |
| CN111917500A (en) * | 2020-07-09 | 2020-11-10 | 上海文化广播影视集团有限公司 | System and method for automatically filling blank audio |
| CN112040225A (en) * | 2020-09-02 | 2020-12-04 | 广州市百果园信息技术有限公司 | Playing delay difference measuring method, device, equipment, system and storage medium |
| CN112399189A (en) * | 2019-08-19 | 2021-02-23 | 腾讯科技（深圳）有限公司 | Delay output control method, device, system, equipment and medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007511948A (en) * | 2003-11-18 | 2007-05-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Trick play signal playback |
-
2021
- 2021-12-15 CN CN202111534820.5A patent/CN114363644B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900906A (en) * | 2018-06-19 | 2018-11-27 | 网宿科技股份有限公司 | A kind of delay control method and device of live video stream |
| CN112399189A (en) * | 2019-08-19 | 2021-02-23 | 腾讯科技（深圳）有限公司 | Delay output control method, device, system, equipment and medium |
| CN111917500A (en) * | 2020-07-09 | 2020-11-10 | 上海文化广播影视集团有限公司 | System and method for automatically filling blank audio |
| CN112040225A (en) * | 2020-09-02 | 2020-12-04 | 广州市百果园信息技术有限公司 | Playing delay difference measuring method, device, equipment, system and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114363644A (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101533174B1 (en) | Method of processing a sequence of coded video frames | |
| US20060104609A1 (en) | Reproducing device and method | |
| KR20060087421A (en) | A method of controlling presentation time and output priority of caption information and an apparatus thereof | |
| US11863814B2 (en) | Temporal placement of a rebuffering event | |
| CN112261461B (en) | Bluetooth sound and picture synchronization method and device, display equipment and readable storage medium | |
| CN110519627B (en) | Audio data synchronization method and device | |
| JP2011101230A (en) | Display control device, display control method, program, output device, and transmission apparatus | |
| US20120260276A1 (en) | Information processing apparatus, information processing method, and program | |
| CN114363644B (en) | Time delay method, time delay device and storage medium | |
| US7813621B2 (en) | Synchronized streaming layer with presentation layer | |
| JP2004513579A (en) | Method and apparatus for transmitting and reproducing audio and / or video information having main program and commercial | |
| CN109002275B (en) | AR background audio processing method and device, AR equipment and readable storage medium | |
| CN110225279A (en) | A kind of video production system and video creating method of mobile terminal | |
| JP6641230B2 (en) | Video playback device and video playback method | |
| JP2004180331A (en) | Video recording and viewing system | |
| WO2012131832A1 (en) | Text-to-speech system, text-to-speech device, and text-to-speech method | |
| JP3803605B2 (en) | Sub-picture interruption apparatus and method | |
| US11490148B2 (en) | Systems and methods to determine when to rejoin a live media broadcast after an interruption | |
| CN114449309B (en) | Dynamic diagram playing method for cloud guide | |
| CN110266986A (en) | A kind of method of the media system and recorded video of mobile terminal | |
| JP6276815B1 (en) | Image processing apparatus, television receiver, image processing system, image processing program, recording medium, and video providing apparatus | |
| KR101087103B1 (en) | Method and Apparatus Random Access in Personal Video Recorder | |
| CN117412092A (en) | Audio and video playing method and device, electronic equipment and computer readable storage medium | |
| CN115225941A (en) | Video processing method, device, equipment and storage medium | |
| JP2001094949A (en) | Digital broadcast recording and reproducing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A delay method, delay device and storage medium Effective date of registration: 20230112 Granted publication date: 20220906 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Haizhu branch Pledgor: B&M MODERN MEDIA Inc. Registration number: Y2023440000005 |