Prosecution Insights
Last updated: April 19, 2026
Application No. 18/764,144

METHOD AND DEVICE FOR IDENTIFICATION OF ACCESSORY, ELECTRONIC DEVICE AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

Final Rejection §102
Filed
Jul 03, 2024
Examiner
MAI, THIEN T
Art Unit
2876
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Aac Acoustic Technologies (Shenzhen) Co. Ltd.
OA Round
2 (Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
3y 3m
To Grant
80%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
397 granted / 678 resolved
-9.4% vs TC avg
Strong +21% interview lift
Without
With
+21.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
41 currently pending
Career history
719
Total Applications
across all art units

Statute-Specific Performance

§101
8.0%
-32.0% vs TC avg
§103
52.5%
+12.5% vs TC avg
§102
20.1%
-19.9% vs TC avg
§112
15.2%
-24.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 678 resolved cases

Office Action

§102
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 § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 5-11 is/are rejected under 35 U.S.C. 102(a1) as being anticipated by Lee (US 20180288208). Lee discloses 1. A method for identification of accessory, comprising: providing a host (100), wherein the host is assembled with at least one accessory (110), and the host is provided with at least one detection element in a region close to a respective one of the at least one accessory; obtaining status information of the at least one detection element of the host (par. 196), wherein each accessory has one trigger element (i.e. communication module, sensor, connector) and, wherein the status information includes triggered and untriggered, wherein the status information of a respective detection element of the at least one detection element is labeled as triggered based on a fact that the respective detection element detects a matched trigger element, and the status information of the respective detection element is labeled as untriggered based on a fact that the respective detection element does not detect the matched trigger element (par. 164, 170, 177, 180-184, 187-196, 203, 221-223: components in host 100 detects the mounting of the accessories); determining arrangement of the at least one trigger element of the respective accessory according to the status information of each of the at least one detection element of the host; and determining a type of the respective accessory assembled to the host according to the arrangement of the at least one trigger element of the respective accessory (par. 279, 296, 313, 336-369, 373, 377). wherein the arrangement of the at least one trigger element involves a number and position of the at least one trigger element (par. 203-204: serial # or a number/amount of trigger element and location); determining the arrangement of the at least one trigger element of the respective accessory according to the status information of each of the at least one detection element of the host includes: determining the number and position of the at least one trigger element of the respective accessory according to a number and position of the respective detection element, in the at least one detection element, with the status information labeled as triggered (par. 127, 133-134, 143-147, 164, 196, 203, 279: the number of magnets and location in the accessory that is sensed as being connected at connector 660); wherein each of the at least one detection element includes a Hall sensor, and each of the at least one trigger element includes a magnet; obtaining the status information of the at least one detection element of the host includes: transmitting by the Hall sensor one of a high-level signal and a low-level signal and labeling the status information of the Hall sensor as triggered based on a fact that the Hall sensor detects a matched magnet in a corresponding position; and transmitting by the Hall sensor the other of the high-level signal and the low-level signal and labeling the status information of the Hall sensor as untriggered based on a fact that the Hall sensor does not detect the matched magnet in the corresponding position (par. 201-203, 221-224: when Hall sensor detects the magnet, it sends a signal to the processor; when the no detection occurs, the processor determines that the status has changed, i.e. the magnet is away, which implies that the sensor sends a signal to the processor); wherein determining the type of the respective accessory assembled to the host according to the arrangement of the at least one trigger element of the respective accessory includes: setting a mapping relationship, wherein the mapping relationship is used for representing a correspondence between one arrangement of the at least one trigger element and one type of the respective accessory; and determining the type of the respective accessory assembled to the host according to the arrangement of the at least one trigger element of the respective accessory and the mapping relationship (par. 127, 196, 203-207, 223-224, 279: the arrangement of Hall sensors and respective magnets at specific positions, i.e. at the rear camera and lower left, is a setting of mapping relationship such that when a magnetic field is sensed, the device 100 wakes up and determines that the accessory type is a cover before acting as a reader to request for an accessory ID; the magnet in the sensor association unit 530 … “a device for enabling the electronic device 100 to determine whether the accessory device 110 is connected or the corresponding accessory type”) 5.1, wherein the at least one detection element corresponding to the respective accessory is uniformly distributed on a contact surface of the host for contacting the respective accessory (par. 94, 106, 361, 369: connectors and plugs, i.e. HDMI and USB, have matching pins and terminals) 6.1, wherein the at least one detection element is located inside the host and the at least one trigger element is located inside the respective accessory (par. 94, 106, 361, 369). 7.5, wherein the at least one detection element is located inside the host and the at least one trigger element is located inside the respective accessory (par. 94, 106, 361, 369). 8.1, wherein the host has at least one detection circuit in one-to-one correspondence with the at least one detection element; and obtaining the status information of the at least one detection element of the host includes: obtaining, via each of the at least one detection circuit, the status information of a corresponding detection element in the at least one detection element of the host (par. 77, 98, 127, 366: detection circuit comprises a chip recognizes the mounting and ID from the accessory). Re claims 9-11, see discussion regarding claims above. Response to Arguments Applicant's arguments have been fully considered but they are not persuasive. Applicant argues that Lee uses Hall sensors and magnets to merely determine the mounting or dismounting state of the accessory, and is silent about determining the type of the respective accessory with cooperation of Hall sensors and magnets. In fact, Lee determines the type of the respective accessory by the NFC module,… It is respectfully submitted that the arrangement of Hall sensors and respective magnets at specific positions, i.e. at the rear camera and lower left, is a setting of mapping relationship such that when a magnetic field is sensed, the device 100 wakes up and determines that the accessory type is a cover before acting as a reader to request for accessory ID; the magnet in the sensor association unit 530 … “a device for enabling the electronic device 100 to determine whether the accessory device 110 is connected or the corresponding accessory type” (par. 127, 196, 203-207, 223-224, 279). In other words, the Hall sensor is a sensor is specifically used for sensing a magnet on the cover such that when picking up the magnetic field, the Hall sensor and then the processor recognize and determine that the cover has opened or closed, causing the processor to go in to wakeup mode or sleep mode. It is respectfully submitted that the current broad claim language does not preclude the NFC from determining the type, since the detection of the type of respective accessory according a mapping relationship is arbitrary. This mapping relationship is not even claimed to be stored in a memory of either the host or accessory. For these reasons, the previous rejection(s) is/are respectfully maintained. Conclusion 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 THIEN MAI whose telephone number is (571)272-8283. The examiner can normally be reached M-F 8-5pm. 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, Steven Paik can be reached at 571-272-2404. 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. /THIEN T MAI/ Primary Examiner, Art Unit 2876
Read full office action

Prosecution Timeline

Jul 03, 2024
Application Filed
Apr 19, 2025
Non-Final Rejection — §102
Jul 23, 2025
Response Filed
Feb 02, 2026
Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12602963
CASH HANDLING APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12596897
4D Indicium Mapping for Moving Objects
2y 5m to grant Granted Apr 07, 2026
Patent 12518123
ASSEMBLY FOR SHIELDING AT LEAST ONE RADIO-FREQUENCY CHIP AND METHOD FOR MAKING THE SAME
2y 5m to grant Granted Jan 06, 2026
Patent 12511511
DETECTION DEVICE
2y 5m to grant Granted Dec 30, 2025
Patent 12505325
TRANSACTION CARD WITH MULTIPLE ORIENTATIONS
2y 5m to grant Granted Dec 23, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
59%
Grant Probability
80%
With Interview (+21.4%)
3y 3m
Median Time to Grant
Moderate
PTA Risk
Based on 678 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month