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International application No. Applicant's or agent's file reference
PCT/US2019/062399 XCOM170309
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
20 November 2019 28 December 2018
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     2A    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     H04R 5/033 (2006.01)i; H04R 1/10 (2006.01)i; H04R 1/02 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility models
Japanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: in-ear device, audio package, augmented sound, microphone, external sound, low-latency audio processing path, digital control parameter


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2018-0197527 A1 (OROSOUND) 12 July 2018 See paragraphs [0025]-[0097] and figures 2-4.
US 2012-0201405 A1 (MILAN SLAMKA et al.) 09 August 2012 See paragraphs [0018], [0031], [0100] and figure 8.
US 2010-0017006 A1 (TAIS CLAUSEN et al.) 21 January 2010 See paragraph [0023] and claim 1.
US 2017-0148428 A1 (PARROT DRONES) 25 May 2017 See paragraphs [0070]-[0117] and figures 1-6.
US 2017-0311068 A1 (HAEBORA CO., LTD.) 26 October 2017 See paragraphs [0052]-[0099] and figures 1-8.
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2018-0197527 A1
12 July 2018
EP 3326171 A1
FR 3039311 A1
FR 3039311 B1
JP 2018-528485 A
US 10424287 B2
WO 2017-017038 A1
30 May 2018
27 January 2017
18 August 2017
27 September 2018
24 September 2019
02 February 2017
US 2012-0201405 A1
09 August 2012
US 8270616 B2
18 September 2012
US 2010-0017006 A1
21 January 2010
DK 1987697 T3
EP 1987697 B1
EP 1987697 A1
ES 2653214 T3
PL 1987697 T3
US 10021496 B2
WO 2007-090407 A1
02 January 2018
20 September 2017
05 November 2008
06 February 2018
30 April 2018
10 July 2018
16 August 2007
US 2017-0148428 A1
25 May 2017
CN 106792305 A
EP 3171612 A1
FR 3044197 A1
JP 2017-142485 A
31 May 2017
24 May 2017
26 May 2017
17 August 2017
US 2017-0311068 A1
26 October 2017
CN 107306368 A
KR 10-2017-0121545 A
WO 2017-188648 A1
31 October 2017
02 November 2017
02 November 2017
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
12 March 2020
Date of mailing of the international search report:
12 March 2020
Authorized officer:
KANG, Min Jeong
Telephone No. +82-42-481-8131
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