Prosecution Insights
Last updated: April 19, 2026
Application No. 19/031,361

SCREEN PROJECTION METHOD, VIDEOCONFERENCING DEVICE, AND SYSTEM

Final Rejection §103
Filed
Jan 18, 2025
Examiner
ELAHI, TOWFIQ
Art Unit
2625
Tech Center
2600 — Communications
Assignee
Yealink (Xiamen) Network Technology Co. Ltd.
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
2y 7m
To Grant
94%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
565 granted / 714 resolved
+17.1% vs TC avg
Strong +15% interview lift
Without
With
+15.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
24 currently pending
Career history
738
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
60.7%
+20.7% vs TC avg
§102
19.1%
-20.9% vs TC avg
§112
10.5%
-29.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 714 resolved cases

Office Action

§103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 1, 2, 6-13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tian (CN 107357585) in view of Maiwald (EP 4180944). Regarding claim 1 Tian teaches a screen projection method (ABSTRACT: The invention claims a video acquiring method), comprising: receiving a to-be-projected video stream sent by a screen projection initiator (the pre-set desktop screen data obtained by the local video device into video output data of the camera for the video conference connection, the screen data in the display image of the preset table is pre-set desktop are gripped to obtain data); decoding the to-be-projected video stream to generate a plurality of to-be-projected images (FIG. 1b is a system diagram of a video conference. wherein the local video device 11 may through the screen transmission device 12 obtaining intelligent device 13 desktop screen data. Further, after the local video device 11 establishes a connection with the remote video device (not shown), local participant if need to share some text document, it only needs to open and display the text document in the intelligent device 13. at this time, the screen transmission device 12 capturing the display data of the text document and the data as the pre-set desktop screen data sent to the local video device 11. the local video device 11 receives a pre-set desktop of the screen data, the screen data of the pre-set desktop into current video conference connection in output by the camera video output data, and outputting the video data as the input source of the video conference software such that the video conference software outputs the video data to the remote video device, the remote video device real-time display intelligent device 13 desktop screen data); creating a virtual camera (Optionally, the virtual camera is installed in advance in the local video device, using the virtual camera to screen data of the pre-set desktop format conversion to obtain the video output data. wherein the virtual camera is a type of application software can simulate the real camera) to enable a videoconferencing screen projection application to control the virtual camera through a standard camera interface to collect each of the to-be-projected images (To sum up, through connection to the video conference with the at least one remote video device in establishing a local video device, obtaining the pre-set desktop screen data and the pre-set desktop screen data through the data interface into the virtual camera. so that the virtual camera screen data of the pre-set desktop switching video output data of the current camera connected to the video conference and sent to the remote video device, real-time displaying the corresponding display data to realize the remote video device video conference process); and performing screen projection on the collected to-be-projected image by the videoconferencing screen projection application (To sum up, through connection to the video conference with the at least one remote video device in establishing a local video device, obtaining the pre-set desktop screen data and the pre-set desktop screen data through the data interface into the virtual camera. so that the virtual camera screen data of the pre-set desktop switching video output data of the current camera connected to the video conference and sent to the remote video device, real-time displaying the corresponding display data to realize the remote video device video conference process) and creating a virtual camera corresponding to each of the to-be-projected video streams (Optionally, the virtual camera is installed in advance in the local video device, using the virtual camera to screen data of the pre-set desktop format conversion to obtain the video output data. wherein the virtual camera is a type of application software can simulate the real camera), to enable the videoconferencing screen projection application to control each virtual camera through the standard camera interface to collect a plurality of to-be-projected images of a corresponding to-be-projected video stream (To sum up, through connection to the video conference with the at least one remote video device in establishing a local video device, obtaining the pre-set desktop screen data and the pre-set desktop screen data through the data interface into the virtual camera. so that the virtual camera screen data of the pre-set desktop switching video output data of the current camera connected to the video conference and sent to the remote video device, real-time displaying the corresponding display data to realize the remote video device video conference process); and performing, by the videoconferencing screen projection application, the screen projection on the to-be-projected images collected by each virtual camera on independent display areas (To sum up, through connection to the video conference with the at least one remote video device in establishing a local video device, obtaining the pre-set desktop screen data and the pre-set desktop screen data through the data interface into the virtual camera. so that the virtual camera screen data of the pre-set desktop switching video output data of the current camera connected to the video conference and sent to the remote video device, real-time displaying the corresponding display data to realize the remote video device video conference process). Tian is silent on wherein the screen projection method further comprises: when detecting that to-be-projected video streams sent by a plurality of screen projection initiators are received, decoding each of the to-be-projected video streams to generate a plurality of to-be-projected images corresponding to each of the to-be-projected video streams; However, Maiwald teaches wherein the screen projection method further comprises: when detecting that to-be-projected video streams sent by a plurality of screen projection initiators are received (fig. 6, fig.4,), decoding each of the to-be-projected video streams to generate a plurality of to-be-projected images corresponding to each of the to-be-projected video streams (Finally, the screen capture encoding thread of the PC sends the encoded image data to the second communication module of the smart TV through the first communication module along the socket data channel. After the second communication module of the smart TV receives the encoded image data, the decoding thread decodes the image data by invoking the decoder, for example, decodes the encoded image data into image data in the NV12 format; and then the display driver is invoked, and the image data is delivered to the display screen for display); Therefore, it would have been obvious to one of the ordinary skilled in the art to combine Tian in light of Maiwald teaching so that it may include wherein the screen projection method further comprises: when detecting that to-be-projected video streams sent by a plurality of screen projection initiators are received, decoding each of the to-be-projected video streams to generate a plurality of to-be-projected images corresponding to each of the to-be-projected video streams; The motivation is to provide a display screen of the screen projection source device that performs display normally without a black screen phenomenon. Regarding claim 2 Tian teaches wherein the receiving a to-be-projected video stream sent by a screen projection initiator comprises: establishing a protocol interaction (he local video device with the remote video device establishing a video conference connection refers to local video device in the video conference software establishes a connection with the remote video device in the video conference software, Specifically, establishing a video conference connection, the local video device can be connected with the remote video device to transmit video data, wherein the video data is in accordance with the data of the video protocol and video format) with the screen projection initiator based on a screen projection protocol to which the to-be-projected video stream belongs; and after establishing the protocol interaction, receiving the to-be-projected video stream sent by the screen projection initiator (FIG. 1b is a system diagram of a video conference. wherein the local video device 11 may through the screen transmission device 12 obtaining intelligent device 13 desktop screen data. Further, after the local video device 11 establishes a connection with the remote video device (not shown), local participant if need to share some text document, it only needs to open and display the text document in the intelligent device 13. at this time, the screen transmission device 12 capturing the display data of the text document and the data as the pre-set desktop screen data sent to the local video device 11. the local video device 11 receives a pre-set desktop of the screen data, the screen data of the pre-set desktop into current video conference connection in output by the camera video output data, and outputting the video data as the input source of the video conference software such that the video conference software outputs the video data to the remote video device, the remote video device real-time display intelligent device 13 desktop screen data. Further, the local participants to operate the text file on the intelligent device 13, remote video device can synchronously display the operating.). Claim 5 is cancelled. Regarding claim 6 Tian teaches a videoconferencing device, configured to execute the screen projection method (Abstract). Regarding claim 7 Tian teaches a screen projection system, comprising a screen projection initiator and the videoconferencing device, wherein the screen projection initiator is configured to send a to-be-projected video stream to the videoconferencing device (fig. 2b-2c). Regarding claim 8 Tian teaches a videoconferencing device, configured to execute the screen projection method (fig. 2a). Regarding claim 9 Tian teaches a screen projection system, comprising a screen projection initiator and the videoconferencing device wherein the screen projection initiator is configured to send a to-be-projected video stream to the videoconferencing device (fig. 2b-2c). Regarding claim 10 Tian teaches a videoconferencing device, configured to execute the screen projection method (fig.2a, 2b). Regarding claim 11 Tian teaches a screen projection system, comprising a screen projection initiator and the videoconferencing device wherein the screen projection initiator is configured to send a to-be-projected video stream to the videoconferencing device (fig.2a, 2b). Regarding claim 12 Tian teaches a videoconferencing device, configured to execute the screen projection method (fig.2a, 2b). Regarding claim 13 Tian teaches a screen projection system, comprising a screen projection initiator and the videoconferencing device wherein the screen projection initiator is configured to send a to-be-projected video stream to the videoconferencing device (fig.2a, 2b). Claims 14-15 are cancelled. Claim(s) 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tian (CN 107357585) in view of Maiwald (EP 4180944) and Gao (CN 113225477). Regarding claim 3 Tian teaches the standard camera interface (interactive conference flat 21 through the receiving software of the screen transmission device after receiving the data, it is decoded to obtain the pre-set desktop of the screen data, and according to the preset data interface the pre-set desktop screen data written into the virtual camera i.e. camera interface, such that the virtual camera performs format conversion to the display data to be transmitted). Tian does not expressly teach camera api2. However, Gao teach camera api2 (system Android Device sends the Capture Request (photographing request) to the camera Camera Device, the camera will return Camera Metadata. The transmission flow is shown in FIG. 5. taking Android Camera API2 as an example,). Therefore, it would have been obvious to combine Tian in light of Gao teaching so that it may include camera api2. Tian teaches a base device of video conferencing that would be improved by the camera api2 taught in the camera device of Gao. One of ordinary skill in the art would have recognized improvements afforded by the camera device of Gao, and the combination would have yielded predictable results. Claim(s) 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tian (CN 107357585) in view of Maiwald (EP 4180944) and Liu (US 20120287222). Regarding claim 4 Tian teaches further comprising: when detecting that to-be-projected video streams sent by a plurality of screen projection initiators are received (the pre-set desktop screen data obtained by the local video device into video output data of the camera for the video conference connection, the screen data in the display image of the preset table is pre-set desktop are gripped to obtain data), decoding each of the to-be-projected video streams to generate a plurality of to-be-projected images corresponding to each of the to-be-projected video streams (FIG. 1b is a system diagram of a video conference. wherein the local video device 11 may through the screen transmission device 12 obtaining intelligent device 13 desktop screen data. Further, after the local video device 11 establishes a connection with the remote video device (not shown), local participant if need to share some text document, it only needs to open and display the text document in the intelligent device 13. at this time, the screen transmission device 12 capturing the display data of the text document and the data as the pre-set desktop screen data sent to the local video device 11. the local video device 11 receives a pre-set desktop of the screen data, the screen data of the pre-set desktop into current video conference connection in output by the camera video output data, and outputting the video data as the input source of the video conference software such that the video conference software outputs the video data to the remote video device, the remote video device real-time display intelligent device 13 desktop screen data); creating one virtual camera to enable the videoconferencing screen projection application to control the one virtual camera through the standard camera interface to collect the spliced to-be-projected images; and performing the screen projection on the [[collected spliced]] to-be-projected images by the videoconferencing screen projection application (To sum up, through connection to the video conference with the at least one remote video device in establishing a local video device, obtaining the pre-set desktop screen data and the pre-set desktop screen data through the data interface into the virtual camera. so that the virtual camera screen data of the pre-set desktop switching video output data of the current camera connected to the video conference and sent to the remote video device, real-time displaying the corresponding display data to realize the remote video device video conference process). Tian does not expressly teach splicing to-be-projected images that are at a same time point among the to-be-projected video streams to generate a plurality of spliced to-be-projected images; However, Liu teaches splicing (fig. 6, apparatus for shooting, stitching and fusing video stream in transmitting end) to-be-projected images that are at a same time point among the to-be-projected video streams to generate a plurality of spliced to-be-projected images (fig. 6 display fusing apparatus to splicing video); Therefore, it would have been obvious to one of the ordinary skilled in the art to combine Tian in light of Liu teaching so that it may include splicing to-be-projected images that are at a same time point among the to-be-projected video streams to generate a plurality of spliced to-be-projected images. The motivation is to generate a panoramic video image of large coverage and high resolution and perform seamless presence, thereby providing a user with better immersive panoramic experience. Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. -Ahsan WO 2022/263709 Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TOWFIQ ELAHI whose telephone number is (571)270-1687. The examiner can normally be reached M-F: 10AM-3PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, William Boddie can be reached at (571)272-0666. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /TOWFIQ ELAHI/Primary Examiner, Art Unit 2625
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Prosecution Timeline

Jan 18, 2025
Application Filed
Sep 15, 2025
Non-Final Rejection — §103
Dec 11, 2025
Response Filed
Feb 17, 2026
Final Rejection — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
79%
Grant Probability
94%
With Interview (+15.2%)
2y 7m
Median Time to Grant
Moderate
PTA Risk
Based on 714 resolved cases by this examiner. Grant probability derived from career allow rate.

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