Patent SG-11201806464P-A (SG)
Title: True random number generator and system comprising the same
Inventor: DO ANH TUAN
IPC: H03K3/03
Filed: 2017-02-24
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization M1111101110101011111 HO 11111 011010111 11011011100110111110111011# 11 International Bureau 0.. .... .. ..... ..or::,„, (10) International Publication Number (43) International Publication Date WO 2017/146650 Al 31 August 2017 (31.08.2017) WIPO I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every GOOF 7/58 (2006.01) H03K 3/03 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (21) International Application Number: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, PCT/SG2017/050083 DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, 24 February 2017 (24.02.2017) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (25) Filing Language: English NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (26) Publication Language: English RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (30) Priority Data: ZA, ZM, ZW. 10201601393W 24 February 2016 (24.02.2016) SG (84) Designated States (unless otherwise indicated, for every (71) Applicant: AGENCY FOR SCIENCE, TECHNOLOGY kind of regional protection available): ARIPO (BW, GH, AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10 GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, Connexis, Singapore 138632 (SG). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (72) Inventor: DO, Anh Tuan; c/o Industry Development, In- DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, stitute of Microelectronics, 2 Fusionopolis Way, #08-02 Innovis Tower, Singapore 138634 (SG). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (74) Agent: VIERING, JENTSCHURA & PARTNER LLP; GW, KM, ML, MR, NE, SN, TD, TG). P.O. Box 1088, Rochor Post Office, Rochor Road, Singa- Published: pore 911833 (SG). — with international search report (Art. 21(3)) (54) Title: TRUE RANDOM NUMBER GENERATOR AND SYSTEM COMPRISING THE SAME 200 VDDH 201 221 210 D Q OUT T VDDL _C) CLK / I \ ...- I I - / i I \ 1 I I I 1 7 I 1 I l -- ' r\" ' 4 4 222 1-1 O ir) , tD ,tD iv 1-1 ----. (57) : Embodiments I N oscillator having a first frequency, a second ring oscillator having a I-1 c:::: ) quency, and a capacitor connected between the second ring oscillator and the third ring oscillator to provide a capacitive coupling ei therebetween. The second 0 The true random number generator may further include a D-type flip-flop ,-t oscillator and having a clock generate an output signal representing a sequence of random numbers. 215 \ 211 Fig. 2 provide a true random number generator. frequency is lower than the first frequency, input connected to an output of the third 213 The true random number second and the having ring oscillator, i 1 frequency, a third third frequency is lower than the second frequency. a data input connected to an output of the first ring wherein generator may include a first ring ring oscillator having a third fre - the D-type flip-flop is configured to