Prosecution Insights
Last updated: August 12, 2026
Application No. 18/758,857

LASER RADAR DETECTION METHOD AND LASER RADAR

Non-Final OA §102§103
Filed
Jun 28, 2024
Priority
Dec 30, 2021 — CN 202111659798.7 +1 more
Examiner
BAGHDASARYAN, HOVHANNES
Art Unit
Tech Center
Assignee
Hesai Technology Co. Ltd.
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allowance Rate
772 granted / 995 resolved
+17.6% vs TC avg
Strong +17% interview lift
Without
With
+16.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
69 currently pending
Career history
1071
Total Applications
across all art units

Statute-Specific Performance

§101
2.9%
-37.1% vs TC avg
§103
50.8%
+10.8% vs TC avg
§102
14.4%
-25.6% vs TC avg
§112
25.8%
-14.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 995 resolved cases

Office Action

§102 §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 § 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, 14 and claims bellow are rejected under 35 U.S.C. 102(a)(1) as being anticipated by D1 US 20200386876 A1. Regarding claims 1, 14 D1 teaches (Previously Presented) A detection method of a LiDAR comprising a scanner(12) with at least one reflection surface(fig. 1B 12), the detection method comprising: determining a plurality of corrective detector units based on a pre-stored inclination angle of a surface, (fig. 1A , B detectors RL corresponding to the vertical or horizontal line of scanning are determined corresponding to inclination angle of 12)[0079] wherein the surface includes one of the at least one reflection surface; and(fig. 1A , B detectors RL corresponding to the vertical or horizontal line of scanning are determined) performing signal collection by the plurality of corrective detector units to generate a point cloud image.[0079-0084][0066] (claim 14)a corrector module pre-storing an inclination angle([0079] prestored 40 degree) of a surface and configured to determine a plurality of corrective detector units based on the inclination angle of the surface,[0079] 12, 27 (Previously Presented) The detection method of claim 1, wherein:the inclination angle of the surface to be corrected comprises a vertical inclination angle and a horizontal inclination angle; and determining the plurality of corrective detector units comprising determining the plurality of corrective detector units based on the vertical inclination angle and the horizontal inclination angle.D1 [0064] 13. (Previously Presented) A LiDAR, comprising:a scanner comprising: at least one reflection surface; (12)and a processor configured to perform the detection method of claim 1.(fig. 2) 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) 2, 15 are rejected under 35 U.S.C. 103 as being unpatentable over D1 in view of D2 CN 113330332 (US 20240053448 used for mapping). Regarding claims 2, 15 D1 teaches determining the inclination angle of the surface; and.[Fig. 1A and B and par 0079-0084] determining the plurality of corrective detector units based on the inclination angle of the surface, wherein the plurality of corrective detector units correspond to the surface to be corrected.[Fig. 1A and B and par 0079-0084] does not teach but D2 teaches 2, 15 (Previously Presented) The detection method of claim 1, wherein:the scanner comprises a plurality of reflection surfaces[0004]; and the detection method further comprises: determining the surface prior to determining the plurality of corrective detector units; [0129] determining the inclination angle of the surface; and It will be obvious to one of ordinary skills in the art to modify teachings taught by D1 with teachings by D2 in order to provide lidar which can scan simultaneously different regions of interest using multiple mirrors. Claim(s) 3,4, 16, 17 and claims bellow are rejected under 35 U.S.C. 103 as being unpatentable over D1 in view of D3 US 20200200877 A1. Regarding claims 3, 16, 4, 17 D1 teahces 3, 16 (Previously Presented) The detection method of claim 1, wherein:the LiDAR comprises a light-emitter module; the light-emitter module comprises: a plurality of light emitting units(10), and the plurality of light emitting units and the plurality of corrective detector(15); and performing signal collection by the plurality of corrective detector units comprises: enabling the light emitting unit to generate detection light, the detection light forming corresponding echo light after reflected by an object outside the LiDAR;(fig. 1a,b) and receiving the echo light by a corresponding corrective detector unit to collect signal.(fig. 1a-1b, [0079-0084]) (4, 17)determining a plurality of corrective detector units(units of 15 corresponding to 10), a plurality of corrective light emitting units(10) based on the inclination angle of the surface in combination with the plurality of corrective detector units, [0079-0084], [0047] but does not teach units have a one-to-one correspondence D3 teaches units have a one-to-one correspondence(fig. 4A)[0071-0072][0079] It will be obvious to one of ordinary skills in the art to modify teachings taught by D1 with teachings by D3 in order to reduce amount of sensor data acquired and provided to the signal processing chain of the LIDAR. 5, 18 (Previously Presented) The detection method of claim 4, wherein each of the corrective light emitting units comprises a plurality of emitters.(D1 fig. 1A 10) 6, 19 (Previously Presented) The detection method of claim 5, wherein the plurality of emitters comprise a plurality of lasers, which are independently addressable and controllable. D1 [0032] 7, 21 (Previously Presented) The detection method of claim 1, wherein each of the corrective detector units comprises a plurality of detectors. D1(fig. 1A 15) [0032] 8, 22 (Previously Presented) The detection method of claim 7, wherein the plurality of the detectors are independently addressable and controllable.[0032] 9, 24 (Original) The detection method of claim 1, wherein the reflection surface rotates around a rotation shaft.(13) 10, 25 (Previously Presented) The detection method of claim 9, wherein the scanner comprises a rotating mirror; and the reflection surface forms a mirror surface of the rotating mirror.(fig. 1A 12) 11, 26 (Previously Presented) The detection method of claim 1, wherein:the LiDAR comprises a light emitting module to generate detection light; the detection light is emitted after reflected by the surface to be corrected; the emitted detection light forms echo light after reflected by an object outside the LiDAR; and the echo light is reflected by the surface to be corrected to the plurality of corrective detector units.(D1 Fig. 1A and [0079-0084]) Although D1 does not explicitly teach regarding claims 20, 23 20. (Original) The LiDAR of claim 19, wherein the emitter comprises: a vertical cavity surface emitting laser. 23. (Original) The LiDAR of claim 22, wherein the detector comprises: a single photon avalanche diode. Using VCSEL emitter and SPAD receives are well known in the art in order to produce multiple beams and detect low intensity signals. It will be obvious to one of ordinary skills in the art to modify teachings taught by D1 to use VCSEL and SPAD in order to produce multiple beams as required in D1 and provide array of sensors which is sensitive o low intensity light . Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOVHANNES BAGHDASARYAN whose telephone number is (571)272-7845. The examiner can normally be reached Mon-Fri 7am - 5 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, Yuqing Xiao can be reached at (571) 270-3603. 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. /HOVHANNES BAGHDASARYAN/Examiner, Art Unit 3645
Read full office action

Prosecution Timeline

Jun 28, 2024
Application Filed
Jul 13, 2026
Non-Final Rejection mailed — §102, §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

1-2
Expected OA Rounds
78%
Grant Probability
94%
With Interview (+16.7%)
3y 0m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 995 resolved cases by this examiner. Grant probability derived from career allowance rate.

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