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International application No. Applicant's or agent's file reference
PCT/US2019/064259 50342-108WO01
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
03 December 2019 03 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 filed or furnished:
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.     3A    
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.


     H04N 21/43 (2011.01)i; H04N 21/431 (2011.01)i; H04N 21/434 (2011.01)i; H04N 21/236 (2011.01)i; H04N 21/2368 (2011.01)i; H04N 21/81 (2011.01)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: augmented reality, lyric, score, music, backing track, color, feedback


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2018-0336871 A1 (YOUSICIAN OY) 22 November 2018 paragraphs [0092], [0208]; claim 1; and figure 7b
KR 10-2017-0138135 A (TAILWIND) 15 December 2017 paragraph [0038]; and claim 9
US 2016-0277802 A1 (TWITTER, INC.) 22 September 2016 paragraph [0056]; and figure 2c
US 2018-0262654 A1 (SMULE, INC.) 13 September 2018 paragraphs [0012], [0033]-[0034], [0050]; and claim 2
WO 2018-004232 A1 (TIME MACHINE CAPITAL LIMITED) 04 January 2018 claims 1-4
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 2018-0336871 A1
22 November 2018
EP 3404514 A1
21 November 2018
KR 10-2017-0138135 A
15 December 2017
US 2016-0277802 A1
22 September 2016
EP 3272126 A1
WO 2016-154149 A1
24 January 2018
29 September 2016
US 2018-0262654 A1
13 September 2018
JP 2015-534095 A
US 2011-0144981 A1
US 2011-0144982 A1
US 2011-0144983 A1
US 2011-0251840 A1
US 2011-0251841 A1
US 2016-0057316 A1
US 2016-0071503 A1
US 2016-0358595 A1
US 2017-0123755 A1
US 2017-0124999 A1
US 2017-0301329 A1
US 2018-0151164 A1
US 2018-0174596 A1
US 2018-0182366 A1
US 2018-0204584 A1
US 2018-0288467 A1
US 2018-0350338 A1
US 2018-0374462 A1
US 8682653 B2
US 8868411 B2
US 8983829 B2
WO 2018-187360 A2
WO 2019-040492 A1
26 November 2015
16 June 2011
16 June 2011
16 June 2011
13 October 2011
13 October 2011
25 February 2016
10 March 2016
08 December 2016
04 May 2017
04 May 2017
19 October 2017
31 May 2018
21 June 2018
28 June 2018
19 July 2018
04 October 2018
06 December 2018
27 December 2018
25 March 2014
21 October 2014
17 March 2015
11 October 2018
28 February 2019
WO 2018-004232 A1
04 January 2018
KR 10-1802906 B1
KR 10-1802914 B1
29 December 2017
30 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:
20 March 2020
Date of mailing of the international search report:
20 March 2020
Authorized officer:
KWON, Sungho
Telephone No. +82-42-481-3547
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