Prosecution Insights
Last updated: October 02, 2026
Application No. 18/825,611

RF communication device for adaptive detection of further RF communication devices

Non-Final OA §102§103
Filed
Sep 05, 2024
Priority
Sep 13, 2023 — EU 23197157.3
Examiner
NGUYEN, CHUONG M
Art Unit
2413
Tech Center
2400 — Computer Networks
Assignee
NXP Semiconductors N.V.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
348 granted / 479 resolved
+14.7% vs TC avg
Strong +19% interview lift
Without
With
+19.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
33 currently pending
Career history
532
Total Applications
across all art units

Statute-Specific Performance

§101
2.6%
-37.4% vs TC avg
§103
68.2%
+28.2% vs TC avg
§102
9.2%
-30.8% vs TC avg
§112
14.0%
-26.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 479 resolved cases

Office Action

§102 §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 . DETAILED ACTION a. Claims 16-35 in the present application, filed on or after March 16, 2013, are being examined under the first inventor to file provisions of the AIA . b. This is a first action on the merits based on Applicant’s claims submitted on 09/05/2024. Information Disclosure Statement The information disclosure statement (IDS) submitted on 09/05/2024 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Objections Claim 32 is objected to because of the following informalities: undefined acronyms. The acronyms “NFC” and "RFID" have not been defined in the claim. The first instance of these acronyms should read “near field communication (NFC)” and "radio-frequency identification (RFID)". Appropriate correction is required. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 27-32 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Kang et al. US Pub 2018/0070220 (hereinafter “Kang”). Regarding claim 27 Kang discloses an RF communication system (“FIG. 1 shows an example of a near field communication (NFC) system;” [0010]), comprising: an RF communication device (“first NFC device 110” [0028]; Fig. 1) according to claim 16; and the at least one further RF communication device (“second NFC device 120” [0028]; Fig. 1). Regarding claim 28 Kang previously discloses the RF communication system according to claim 27, Kang further discloses wherein the at least one further RF communication device is configured as a passive device (“Radio frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. Passive tags collect energy from a nearby RFID reader's interrogating radio waves.” [0003]; [0039]). Regarding claim 29 Kang previously discloses the RF communication system according to claim 27, Kang further discloses wherein the at least one further RF communication device is configured as an active device (“As an NFC device is miniaturized, an antenna of the NFC device is also miniaturized. However, the miniaturization of the antenna makes it difficult for the NFC device to detect another NFC device. Accordingly, there is a need for a NFC device that recognizes another NFC device more accurately and rapidly even after being miniaturized.” [0004]). Regarding claim 30 Kang previously discloses the RF communication system according to claim 29, Kang further discloses wherein the at least one further RF communication device is configured as an active scanning device (“As an NFC device is miniaturized, an antenna of the NFC device is also miniaturized. However, the miniaturization of the antenna makes it difficult for the NFC device to detect another NFC device. Accordingly, there is a need for a NFC device that recognizes another NFC device more accurately and rapidly even after being miniaturized.” [0004]). Regarding claim 31 Kang previously discloses the RF communication system according to claim 27, Kang further discloses wherein the first RF signal is optimized to detect the active device (“As an NFC device is miniaturized, an antenna of the NFC device is also miniaturized. However, the miniaturization of the antenna makes it difficult for the NFC device to detect another NFC device. Accordingly, there is a need for a NFC device that recognizes another NFC device more accurately and rapidly even after being miniaturized.” [0004]); or wherein the second RF signal is optimized to detect the passive device (“Radio frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. Passive tags collect energy from a nearby RFID reader's interrogating radio waves.” [0003]; [0039]). Regarding claim 32 Kang previously discloses the RF communication system according to claim 27, Kang further discloses wherein the further RF communication device is configured as an RFID device ([0039]), an NFC device [0004]), a tag ([0003]), a mobile phone ([0031]). 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 of this title, 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. In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claims 16-23, 26, and 33 and are rejected under 35 U.S.C. 103 as being unpatentable over Kang et al. US Pub 2018/0070220 (hereinafter “Kang”), and in view of Sacco et al. US Pub 2018/0203059 (hereinafter “Sacco”). Regarding claim 16 Kang discloses a radio frequency (RF) communication device (“first NFC device 110” [0028]; Fig. 1) for detecting at least one further RF communication device (“second NFC device 120” [0028]; Fig. 1) being at least one of: an active further RF communication device (“The first NFC device 110 operating in the reader mode transmits a first signal to the second NFC device 120 through electromagnetic induction between the first antenna 111 and the second antenna 121.” [0029]), a passive further RF communication device (“Radio frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. Passive tags collect energy from a nearby RFID reader's interrogating radio waves.” [0003]; [0039]), the RF communication device (“first NFC device 110” [0028]; Fig. 1) comprising: an RF transmission device (“a transceiver 112” in Fig. 2; [0032]), configured to transmit RF signals (“The transceiver 112 may transmit signals, which are wirelessly received through the antenna 111, to the first detection pulse generation block 113, the SOF detection block 115, and the polling block 116. For example, the transceiver 112 may receive a first response pulse RP1 (e.g., a first message) and a second response pulse RP2 (e.g., a second message) from an external device (e.g., the second device 120) through the antenna 111.” [0034]) to be received by the at least one further RF communication device (“second NFC device 120” [0028]; Fig. 1); and an adaptive detection device (“the transceiver 112 is configured to wirelessly transmit signals, which are received from the first detection pulse generation block 113, the second detection pulse generation block 114, the SOF detection block 115, and the polling block 116, through the antenna 111.” [0033]), coupled to the RF transmission device, and configured to: trigger a transmission of a first RF signal (“first detection pulse DP1” [0033]; Fig. 4), trigger a transmission of a second RF signal (“second detection pulse DP2” [0033]; Fig. 4), and detect the active further RF communication device (“RP1” in Fig. 3) based on the first RF signal (“DP1” in Fig. 4) or detect the passive further RF communication device (“RP2” in Fig. 3) based on the second RF signal (“DP2” in Fig. 4; (“the transceiver 112 may receive a first response pulse RP1 (e.g., a first message) and a second response pulse RP2 (e.g., a second message) from an external device (e.g., the second device 120) through the antenna 111. In an embodiment, the transceiver 112 transmits the first response pulse RP1 to the first detection pulse generation block 113 and transmits the second response pulse RP2 to the SOF detection block 115.” [0034]); wherein one of the first RF signal (“DP1” in Fig. 4) and the second RF signal (“DP2” in Fig. 4) is transmitted subsequently to the other (“the transceiver 112 may wirelessly transmit a first detection pulse DP1 from the first detection pulse generation block 113 and a second detection pulse DP2 from the second detection pulse generation block 114 through the antenna 111.” [0033]; Fig. 4), and Kang discloses comparing wherein a first energy level of the first RF signal to a second energy level of the second RF signal (“the amplitude of the second detection pulse DP2 is greater than that of the first detection pulse DP1. That is, a detection (or detectable) distance of the second detection pulse DP2 may be longer than that of the first detection pulse DP1” [0044]) but does not specifically teach wherein a first energy level of the first RF signal is at least 25% higher than a second energy level of the second RF signal. In an analogous art, Sacco discloses wherein a first energy level of the first RF signal is at least 25% higher than a second energy level of the second RF signal (“In an embodiment, the second signal processor consumes less than 50% or less than 25% energy or power than the first signal processor.” [0024]). Before the effective filling date of the claimed invention, it would have been obvious to one of ordinary skill in the art to modify Kang’s near field communication device to include Sacco’s sensor system of comparing two radio signals, in order to determine dissipated power level (Sacco [0012]). Thus, a person of ordinary skill would have appreciated the ability to incorporate Sacco’s sensor system of comparing two radio signals into Kang’s near field communication device since the claimed invention is merely a combination of old elements, and in the combination each element merely would have performed the same function as it did separately, and one of ordinary skill in the art would have recognized that the results of the combination were predictable. Regarding claim 17 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, Kang further discloses wherein the RF communication device is configured as a near field communication (NFC) device, and wherein the RF signals are configured as NFC signals (“Each of the first and second NFC devices 110 and 120 may operate in a reader mode or a card mode. For example, the first NFC device 110 may operate in the reader mode, and the second NFC device 120 may operate in the card mode. The first NFC device 110 operating in the reader mode transmits a first signal to the second NFC device 120 through electromagnetic induction between the first antenna 111 and the second antenna 121. The first signal may include a continuous wave for transmitting power and a first information signal added to the continuous wave for transmitting information.” [0029]). Regarding claim 18 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, Kang further discloses wherein the RF signals are configured as RF pulses (“In an embodiment, the first detection pulse generation block 113 generates the first detection pulse DP1 under control of the control block 117 and outputs the first detection pulse DP1 to the transceiver 112. The first detection pulse DP1 may be a detection pulse that is defined in the NFC standard.” [0035] and furthermore “In an embodiment, the second detection pulse generation block 114 generates the second detection pulse DP2 under control of the control block 117 and outputs the second detection pulse DP2 to the transceiver 112. The second detection pulse DP2 may have a different shape from the first detection pulse DP1.” [0036]). Regarding claim 19 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, wherein the adaptive detection device is further configured to: Kang further discloses in Fig. 4 trigger a transmission of a sequence of RF signals that includes the first RF signal and the second RF signal (“the transceiver 112 may wirelessly transmit a first detection pulse DP1 from the first detection pulse generation block 113 and a second detection pulse DP2 from the second detection pulse generation block 114 through the antenna 111.” [0033]; Fig. 4). Regarding claim 20 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 19, Kang further discloses in Fig. 4 wherein a plurality of first RF signals and a plurality of second RF signals are transmitted alternatingly in the RF sequence (“In operation S140, the NFC device 110 transmits the second detection pulse DP2. An example in which the second detection pulse DP2 is transmitted is illustrated in a second detection interval of FIG. 4” [0044]). Regarding claim 21 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 19, Kang further discloses in Fig. 4 wherein one first RF signal and one second RF signal are transmitted alternatingly (“FIG. 4 shows an example in which the NFC device outputs a first detection pulse and a second detection pulse based on the operating method of FIG. 3;” [0013]). Regarding claim 22 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 19, Kang further discloses wherein two or more first RF signals and two or more RF signals are transmitted alternatingly (see Fig. 4). Regarding claim 23 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, Kang further discloses wherein the first RF signal and the second RF signal are transmitted as an extended pulse with different energy levels (“In an embodiment, the amplitude of the second detection pulse DP2 is greater than that of the first detection pulse DP1. That is, a detection (or detectable) distance of the second detection pulse DP2 may be longer than that of the first detection pulse DP1. In an embodiment, the amplitude of the first detection pulses DP1 transmitted during the first detection interval are the same as one another.” [0044]). Regarding claim 26 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, Sacco further discloses wherein the first energy level of the first RF signal is at least 50% higher than the second energy level of the second RF signal (“In an embodiment, the second signal processor consumes less than 50% or less than 25% energy or power than the first signal processor.” [0024]). Regarding claim 33 A method for operating a radio frequency (RF) communication system, the method comprising: transmitting a first RF signal; transmitting a second RF signal; and detecting an active further RF communication device based on the first RF signal or detecting a passive further RF communication device based on the second RF signal; wherein one of first RF signal and the second RF signal is transmitted subsequently to the other, and wherein a first energy level of the first RF signal is at least 25% higher than a second energy level of the second RF signal. The scope and subject matter of method claim 33 is drawn to the method of using the corresponding apparatus claimed in claim 16. Therefore method claim 33 corresponds to apparatus claim 16 and is rejected for the same reasons of obviousness as used in claim 16 rejection above. Claims 24 and 25 are rejected under 35 U.S.C. 103 as being unpatentable over Kang, in view of Sacco, and further in view of Johnston et al. US Pub 2022/0271567 (hereinafter “Johnston”). Regarding claim 24 Kang, as modified by Sacco, previously discloses the RF communication device according to claim 16, wherein the adaptive detection device is further configured to: Kang and Sacco do not specifically teach perform a calibration with respect to the first energy level of the first RF signal and the second energy level of the second RF signal. In an analogous art, Johnston discloses perform a calibration with respect to the first energy level of the first RF signal and the second energy level of the second RF signal (“the method includes establishing (904) one or more device detection thresholds during a calibration process for the near-field charging pad. In some instances, the calibration process is performed after manufacturing the near-field charging pad and includes placing devices of various types (e.g., smartphones, tablets, laptops, connected devices, etc.) on the near-field charging pad and then measuring a minimum amount of reflected power detected at an antenna zone while transmitting test power transmission signals to the devices of various types.” [0178]). Before the effective filling date of the claimed invention, it would have been obvious to one of ordinary skill in the art to modify Kang’s near field communication device, as modified by Sacco, to include Johnston’s near-field RF charging pad with adaptive loading, in order to determine appropriate power usage level (Johnston [0006]). Thus, a person of ordinary skill would have appreciated the ability to incorporate Johnston’s near-field RF charging pad with adaptive loading into Kang’s near field communication device since the claimed invention is merely a combination of old elements, and in the combination each element merely would have performed the same function as it did separately, and one of ordinary skill in the art would have recognized that the results of the combination were predictable. Regarding claim 25 Kang, as modified by Sacco and Johnston, previously discloses the RF communication device according to claim 24, Johnston further discloses wherein the adaptive detection device is further configured to derive at least one of a first reference value (refmax) for the first energy level and a second reference value (refmin) for the second energy level (“In some embodiments, the selected load is optimized by the adaptive load 106 (in conjunction with the processor 110, FIG. 3A) to tune Z.sub.effective in such a way that the energy transferred between terminal 123 and the receiver 104 reaches a maximum (e.g., 75% or more of energy transmitted by antenna elements of the pad 100 is received by the RF receiver 104, such as 98%), while energy transfer may also stay at a minimum from terminal 123 to terminal 121 (e.g., less than 25% of energy transmitted by antenna elements of the pad 100 is not received by the RF receiver 104 and ends up reaching terminal 121 or ends up being reflected back, including as little as 2%).” [0149]). Claims 34 and 35 are rejected under 35 U.S.C. 103 as being unpatentable over Kang, in view of Sacco, and further in view of Wild et al. US Patent 9367718 (hereinafter “Wild”). Regarding claim 34 Kang, as modified by Sacco, previously discloses the method according to claim 33, further comprising: Kang and Sacco do not specifically teach receiving the first RF signal by the active RF communication device, and then starting a first wake-up operation. In an analogous art, Wild discloses receiving the first RF signal by the active RF communication device, and then starting a first wake-up operation (“The access point ID for AP1 is ‘00’, the first and third sets of communication time slots reserved for RFID tag communication are actively assigned to RFID tags, and the first RFID tag is requested to wake up for communication.” Col. 5, rows 55-58; see Fig. 3). Before the effective filling date of the claimed invention, it would have been obvious to one of ordinary skill in the art to modify Kang’s near field communication device, as modified by Sacco, to include Wild’s method for enabling low-powered RFID communication, in order to minimize power consumption (Wild, col. 2, rows 1-15). Thus, a person of ordinary skill would have appreciated the ability to incorporate Wild’s method for enabling low-powered RFID communication into Kang’s near field communication device since the claimed invention is merely a combination of old elements, and in the combination each element merely would have performed the same function as it did separately, and one of ordinary skill in the art would have recognized that the results of the combination were predictable. Regarding claim 35 Kang, as modified by Sacco, previously discloses the method according to claim 33, Kang and Sacco do not specifically teach receiving the second RF signal by the passive RF communication device and then starting a second wake-up operation. In an analogous art, Wild discloses receiving the second RF signal by the passive RF communication device and then starting a second wake-up operation (“If the access point beacon signal includes a wakeup vector, the RFID tag preferably only listens to the beacon signal as long as is necessary to determine if the RFID tag needs to wake up. For example, if the wakeup vector is 1000 bits, but the RFID tag's bit in that vector is the first one; if that first bit is zero, the RFID tag can stop listening after hearing it.” Col. 8, rows 43-46). Before the effective filling date of the claimed invention, it would have been obvious to one of ordinary skill in the art to modify Kang’s near field communication device, as modified by Sacco, to include Wild’s method for enabling low-powered RFID communication, in order to minimize power consumption (Wild, col. 2, rows 1-15). Thus, a person of ordinary skill would have appreciated the ability to incorporate Wild’s method for enabling low-powered RFID communication into Kang’s near field communication device since the claimed invention is merely a combination of old elements, and in the combination each element merely would have performed the same function as it did separately, and one of ordinary skill in the art would have recognized that the results of the combination were predictable. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHUONG M NGUYEN whose telephone number is (571)272-8184. The examiner can normally be reached M-F 10:00am - 6:30pm. 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, Derrick Ferris can be reached at 571-272-3123. 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. /CHUONG M NGUYEN/Primary Examiner, Art Unit 2411
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Prosecution Timeline

Sep 05, 2024
Application Filed
Aug 27, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
73%
Grant Probability
92%
With Interview (+19.4%)
3y 1m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 479 resolved cases by this examiner. Grant probability derived from career allowance rate.

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