Office Action Predictor
Last updated: April 15, 2026
Application No. 18/571,668

SCREEN MIRRORING DEVICE DISCOVERY METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Non-Final OA §112
Filed
Dec 18, 2023
Examiner
LEE, SIU M
Art Unit
2632
Tech Center
2600 — Communications
Assignee
Beijing Bytedance Network Technology Co., LTD.
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
99%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allow Rate
957 granted / 1052 resolved
+29.0% vs TC avg
Strong +17% interview lift
Without
With
+17.4%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
25 currently pending
Career history
1077
Total Applications
across all art units

Statute-Specific Performance

§101
7.1%
-32.9% vs TC avg
§103
44.0%
+4.0% vs TC avg
§102
16.4%
-23.6% vs TC avg
§112
17.1%
-22.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1052 resolved cases

Office Action

§112
DETAILED ACTION 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 Objections Claims 1-12, 15, 17-23 are objected to because of the following informalities: (1) Regarding claim 1: Lines 13-14 recite “each candidate screen projecting device”; the examiner suggests changing to “each of the candidate screen projecting device” since the candidate screen projecting device is mentioned in lines 10-11. (2) Regarding claim 2: Line 1 recites “wherein the determining a target screen”; the examiner suggests changing to “wherein the determining the target screen”. Line 3 recites “each candidate screen projecting device”; the examiner suggests changing to “each of the candidate screen projecting device”. (3) Regarding claim 3: Line 5 recites “sending a description information obtaining request to each candidate screen projecting”; the examiner suggests changing to “sending a description information obtaining request to said each candidate screen projecting”. (4) Regarding claim 9: Line 11 recites “each candidate screen projecting device”; the examiner suggests changing to “each of the candidate screen projecting device” since the candidate screen projecting device is mentioned in line 8-9. (5) Regarding claim 10: Line 2 recites “position information and network information, and the determining all candidate screen projecting”; the examiner suggests changing to “the position information and the network information, and the determining all candidate screen projecting”. (6) Regarding claim 15: Line 18 recites “each candidate screen projecting device”; the examiner suggests changing to “each of the candidate screen projecting device” since the candidate screen projecting device is mentioned in lines 14-15. (7) Regarding claim 17: Line 1 recites “wherein the determining a target screen”; the examiner suggests changing to “wherein the determining the target screen”. Line 3 recites “each candidate screen projecting device”; the examiner suggests changing to “each of the candidate screen projecting device”. (8) Regarding claim 20: Line 2 recites “wherein the program”; the examiner suggests changing to “wherein the computer program”. (9) Regarding claim 21: Line 2 recites “wherein the program”; the examiner suggests changing to “wherein the computer program”. (10) Regarding claim 22: Line 2 recites “wherein the program”; the examiner suggests changing to “wherein the computer program”. (11) Regarding claim 23: Line 2 recites “wherein the program”; the examiner suggests changing to “wherein the computer program”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 4, 10-12, and 21-23 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. (1) Regarding claim 4: Claim 4 recites the limitation "the discovered screen projection devices" in line 4. There is insufficient antecedent basis for this limitation in the claim. (2) Regarding claim 10: Claim 10 recites the limitation “the position information of at least one screen projecting devices stored in the server” in lines 6-7. There is insufficient antecedent basis for this limitation in the claim. Claim 10 recites the limitation “the network information of each close-range screen” in line 10. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claims 1-3, 5-9, 15, 17-20 are objected to for minor informality, but would be allowable if rewritten to overcome the objection. The following is a statement of reasons for the indication of allowable subject matter: (1) Regarding claims 1-3, 5-8, 15, and 17-19: The present invention describes a screen projecting device discovery method, which is applied to a terminal device, the method comprising receiving a device discovery instruction; generating, in response to the device discovery instruction, a device discovery request carrying device information of the terminal device, and sending the device discovery request to a server, wherein the device discovery request is used for requesting the server to determine all candidate screen projecting devices that are located in the same local area network as the terminal device based on the device information of the terminal device, the device information including at least one of position information and network information; receiving local area network communication address information of each candidate screen projecting device returned by the server; and determining a target screen projecting device from among all the candidate screen projecting devices according to the local area network communication address information of each candidate screen projecting device. The closest prior art, CN113055976A used in PCT written opinion of PCT/CN2022/096010 discloses a wireless screen projection method comprising transmitting a screen projection demand broadcast comprises connection information of a transmitting end equipment, in response to the broadcast, receive feedback connection establishment request from receiving end devices, and form a screen projection equipment list and select a receiving end device for screencasting; another closest prior art CN111405042A listed in the IDS filed on 3/15/2024 discloses a first electronic equipment acquire an address resolution protocol table comprises media access control address and internal protocol address of second electronic equipment such as screen projection devices, and based on the information in the address resolution protocol table, select and connect to a target electronic equipment, but both references fail to disclose sending the device discovery request to a server, wherein the device discovery request is used for requesting the server to determine all candidate screen projecting devices that are located in the same local area network as the terminal device based on the device information of the terminal device, the device information including at least one of position information and network information; receiving local area network communication address information of each candidate screen projecting device returned by the server; and determining a target screen projecting device from among all the candidate screen projecting devices according to the local area network communication address information of each candidate screen projecting device. (2) Regarding claims 9 and 20: The present invention describes a screen projecting device discovery method, which is applied to a server, the method comprising receiving a device discovery request sent from a terminal device, which carries device information of the terminal device, the device information including at least one of position information and network information; determining all candidate screen projecting devices that are located in the same local area network as the terminal device according to the device information of the terminal device; and sending local area network communication address information of each candidate screen projecting device to the terminal device, so that the terminal device determines a target screen projecting device from among all the candidate screen projecting devices according to the local area network communication address information of each candidate screen projecting device. The closest prior art, CN113055976A used in PCT written opinion of PCT/CN2022/096010 discloses a wireless screen projection method comprising transmitting a screen projection demand broadcast comprises connection information of a transmitting end equipment, in response to the broadcast, receive feedback connection establishment request from receiving end devices, and form a screen projection equipment list and select a receiving end device for screencasting; another closest prior art CN111405042A listed in the IDS filed on 3/15/2024 discloses a first electronic equipment acquire an address resolution protocol table comprises media access control address and internal protocol address of second electronic equipment such as screen projection devices, and based on the information in the address resolution protocol table, select and connect to a target electronic equipment, but both references fail to disclose the method step of determining all candidate screen projecting devices that are located in the same local area network as the terminal device according to the device information of the terminal device; and sending local area network communication address information of each candidate screen projecting device to the terminal device, so that the terminal device determines a target screen projecting device from among all the candidate screen projecting devices according to the local area network communication address information of each candidate screen projecting device. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Cheng (US 2015/0365453 A1) discloses media projection method and device, control, terminal and cloud server. Manion et al. (US 2003/0236889 A1) discloses data projection system and method. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SIU M LEE whose telephone number is (571)270-1083. The examiner can normally be reached M-T 8:30-7:00. 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, Chieh M Fan can be reached at 571-272-3042. 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. /SIU M LEE/Primary Examiner, Art Unit 2632 12/27/2025
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Prosecution Timeline

Dec 18, 2023
Application Filed
Dec 29, 2025
Non-Final Rejection — §112
Mar 25, 2026
Response Filed

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

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Prosecution Projections

1-2
Expected OA Rounds
91%
Grant Probability
99%
With Interview (+17.4%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 1052 resolved cases by this examiner. Grant probability derived from career allow rate.

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