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1. WO2020112255 - CONCEPT FOR A BUFFERED FLIPPED VOLTAGE FOLLOWER AND FOR A LOW DROPOUT VOLTAGE REGULATOR


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2019/055489 D148880DEPCT_INT190819NW
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
10 October 2019 27 November 2018
Applicant
INTEL CORPORATION
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)).
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)).
c.
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
a.
The figure of the drawings to be published with the abstract is Figure No.     2    
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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     H03F 3/50 (2006.01)i; H03F 3/45 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

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: first transistor, second transistor, buffer circuit, feed-forward compensation circuit, low dropout voltage regulator

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
US 2014-0176098 A1 (EMERSON S. FANG et al.) 26 June 2014 See paragraph [0027] and figure 4.
21-24
A
1-20,25
(2)
A
US 2002-0175761 A1 (ELMAR BACH et al.) 28 November 2002 See paragraphs [0015]-[0016] and figure 1.
1-25
(3)
A
US 2008-0084196 A1 (DAVID K. LACOMBE et al.) 10 April 2008 See paragraphs [0036]-[0037] and figure 4.
1-25
(4)
A
US 2012-0098574 A1 (HIROYASU MORIKAWA) 26 April 2012 See paragraphs [0059]-[0070] and figures 1-2.
1-25
(5)
A
US 2012-0049951 A1 (JAGANNATHAN VENKATARAMAN et al.) 01 March 2012 See paragraphs [0032]-[0034] and figure 5.
1-25
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
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)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
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
"X"
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
"Y"
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

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
US 2014-0176098 A1
26 June 2014
US 9274534 B2
01 March 2016
US 2002-0175761 A1
28 November 2002
CN 1524340 A
CN 1524340 C
DE 60213101 T2
EP 1417752 A2
EP 1417752 B1
US 6580326 B2
WO 02-097975 A2
WO 2002-097975 A3
25 August 2004
21 June 2006
11 January 2007
12 May 2004
12 July 2006
17 June 2003
05 December 2002
11 March 2004
US 2008-0084196 A1
10 April 2008
CN 101502184 A
TW 200810605 A
TW 200820575 A
TW I361553 B
US 2008-0122379 A1
US 2009-0273295 A1
US 7569998 B2
US 7868603 B2
US 8358082 B2
WO 2008-006024 A2
WO 2008-006024 A3
05 August 2009
16 February 2008
01 May 2008
01 April 2012
29 May 2008
05 November 2009
04 August 2009
11 January 2011
22 January 2013
10 January 2008
29 May 2008
US 2012-0098574 A1
26 April 2012
CN 102474240 A
JP 5635506 B2
US 8350619 B2
WO 2011-004512 A1
WO 2011-004591 A1
23 May 2012
03 December 2014
08 January 2013
13 January 2011
13 January 2011
US 2012-0049951 A1
01 March 2012
None
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:
11 February 2020
Date of mailing of the international search report:
11 February 2020
Authorized officer:
KANG, Sung Chul
Telephone No. +82-42-481-8405
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