Prosecution Insights
Last updated: May 29, 2026
Application No. 18/335,697

MAGNETIC SIGNAL RECEIVING DEVICE AND MAGNETIC FIELD COMMUNICATION SYSTEM

Non-Final OA §103
Filed
Jun 15, 2023
Priority
Jul 26, 2022 — RE 10-2022-0092276 +1 more
Examiner
TRAN, TUAN A
Art Unit
2648
Tech Center
2600 — Communications
Assignee
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
OA Round
2 (Non-Final)
85%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
663 granted / 780 resolved
+23.0% vs TC avg
Moderate +7% lift
Without
With
+7.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
11 currently pending
Career history
795
Total Applications
across all art units

Statute-Specific Performance

§101
4.7%
-35.3% vs TC avg
§103
59.7%
+19.7% vs TC avg
§102
15.5%
-24.5% vs TC avg
§112
7.0%
-33.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 780 resolved cases

Office Action

§103
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 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. Claims 1-2 and 12-14 are rejected under 35 U.S.C. 103 as being unpatentable over Kim (2022/0200662) in view of Di Stefano (10,197,615). Regarding claims 1-2 and 12-14, Kim discloses a system (See fig. 1) for communicating a magnetic field, the system comprising: a magnetic signal transmission device 100 configured to modulate an original signal into a modulated signal and transmit the modulated signal into a magnetic signal (See fig. 1); and a magnetic signal receiving device 200 configured to detect the magnetic signal using a magnetic sensor 310, output an amplified signal obtained by amplifying the detected magnetic signal, and restore the original signal using the amplified signal, wherein the magnetic signal receiving device comprises: a signal detector 300 comprising the magnetic sensor 310 and configured to detect the magnetic signal using the magnetic sensor; a signal amplifier 413 configured to amplify the detected magnetic signal and output the amplified signal; and a demodulator {430, 450} configured to restore the original signal using the amplified signal (See figs. 1-2 and par [0047-0059]). However, Kim does not explicitly mention that the magnetic sensor comprises at least one ferromagnetic core and at least one pickup coil wound around the at least one ferromagnetic core and is configured to convert a magnetic signal detected through the at least one pickup coil into an induced voltage and output the induced voltage. Since Di Stefano suggests a similar system, wherein a magnetic sensor 206 comprises at least one ferromagnetic core and at least one pickup coil wound around the at least one ferromagnetic core and is configured to convert a magnetic signal detected through the at least one pickup coil into an induced voltage SV2 and output the induced voltage (See fig. 2 and col. 9 lines 19-35); therefore, it would have been obvious to one skilled in the art at the time the invention was made to utilize the magnetic sensor as suggested by Di Stefano for the Kim’s system, for the advantage of expanding the capability of the system to various types of magnetic sensors. Allowable Subject Matter Claims 3-6 and 15-18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Regarding claims 3-5 and 15-17, Kim & Di Stefano disclose as cited in claims 1 and 12. However, they fail to disclose the magnetic sensor comprises a first ferromagnetic core, a second ferromagnetic core, a first pickup coil wound around the first ferromagnetic core, and a second pickup coil wound around the second ferromagnetic core, is configured to convert the magnetic signal detected through the first pickup coil into a first induced voltage and output the first induced voltage, and is configured to convert the magnetic signal detected through the second pickup coil into a second induced voltage and output the second induced voltage. Regarding claims 6 and 18, Kim & Di Stefano disclose as cited in claims 1 and 12. However, they fail to disclose the magnetic signal receiving device further comprises a matching circuit configured to control a resonant frequency of the magnetic sensor. Claims 7-11 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Regarding claims 7-11, Kim & Di Stefano disclose as cited in claims 1-2 and 12-14. However, they do not mention that the device for receiving a magnetic signal, comprising: a signal detector configured to convert a magnetic signal detected using a differential magnetic sensor into a first induced voltage and a second induced voltage; a signal amplifier configured to output an amplified signal obtained by amplifying a difference between the first induced voltage and the second induced voltage using a differential amplifier; and a demodulator configured to extract and restore a message signal using the amplified signal. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892 for a listing of cited prior arts of record. Response to Arguments Applicant’s arguments with respect to the pending claims 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to TUAN A TRAN whose telephone number is (571)272-7858. The examiner can normally be reached Mon-Fri: 7:30 AM - 5:00 PM. 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, Wesley Kim can be reached at (571) 272-7867. 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. /TUAN A TRAN/Primary Examiner, Art Unit 2648
Read full office action

Prosecution Timeline

Jun 15, 2023
Application Filed
Sep 24, 2025
Non-Final Rejection mailed — §103
Dec 24, 2025
Response Filed
Apr 08, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12640775
NFC-Enabled Constrained Device, NFC-Enabled Control Device, and Method Thereof
4y 2m to grant Granted May 26, 2026
Patent 12641503
BI-LAYERED MOBILITY FOR NG-RAN
2y 6m to grant Granted May 26, 2026
Patent 12640766
PROTECTIVE CASE ATTACHED WITH ANCHORS
1y 11m to grant Granted May 26, 2026
Patent 12633960
SWITCHABLE COMMUNICATION INTERFACE
2y 11m to grant Granted May 19, 2026
Patent 12634657
COMMUNICATION CONTROL METHOD AND APPARATUS OF MOBILE CLEANING DEVICE, MEDIUM, AND CLEANING SYSTEM
2y 2m to grant Granted May 19, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
85%
Grant Probability
92%
With Interview (+7.3%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 780 resolved cases by this examiner. Grant probability derived from career allowance 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