Patent SG-11201407431R-A (SG)
Title: Ejector devices, methods, drivers, and circuits therefor
Inventor: WILKERSON JONATHAN RYAN
IPC: H02N2/06
Filed: 2013-05-15
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 21 November 2013 (21.11.2013) WIPOIPCT (10) International Publication Number WO 2013/173495 A1 (51) International Patent Classification: B41J2/045 (2006.01) H02N2/06 (2006.01) (21) International Application Number: PCT/US2013/041208 15 May 2013 (15.05.2013) (22) International Filing Date: (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 61/647,359 15 May 2012 (15.05.2012) US 61/722,556 5 November 2012 (05.11.2012) US 61/722,584 5 November 2012 (05.11.2012) US (71) Applicant: CORINTHIAN OPHTHALMIC, INC. [US/US]; 148 Hwy 105 Extension, Suite 103, Boone, North Carolina 28607 (US). (72) Inventors: WILKERSON, Jonathan Ryan; 148 Hwy 105 Extension, Suite 103, Boone, North Carolina 28607 (US). LYNCH, Iyam; 148 Hwy 105 Extension, Suite 103, Boone, North Carolina 28607 (US). PARROTT, Jeffrey; 148 Hwy 105 Extension, Suite 103, Boone, North Carolina 28607 (US). HUNTER, Charles Eric; 510 Cherry Drive, Boone, North Carolina 28607 (US). (74) Agents: VINNOLA, Milan M. et al.; DORSEY & WHIT­ NEY LLP, 1400 Wewatta Street, Suite 400, Denver, Color­ ado 80202 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, [Continued on next page] (54) Title: EJECTOR DEVICES, METHODS, DRIVERS, AND CIRCUITS THEREFOR o\ •t i> i-H cn i-H o CJ o & Titrx- £ri Pirxhrt ; - ftesomnt Decay IIII it I t t- i i i i i Z < \ PM ::K65 FIG. 19 iUMUt* (57) Abstract: In a piezoelectric ejector assembly, piezoelectric a actuator is at­ tached an ejector mechanism, while to a drive signal generator and a controller are coupled to the actuator. The drive signal generator is configured to gener­ ate a drive signal for driving the actuat­ or to oscillate the ejector assembly. The controller is configured to control the drive signal generator to drive the actu­ ator at a resonant frequency of the eject­ or assembly, and an auto-tuning circuit is provided to define the optimum drive signal frequency. WO 2013/173495 Al I lllll llllllll II llllll III lllll lllll III III III lllll llll llll lllll lllll lllll lllll lllllll llll llll MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to the identity of the inventor (Rule 4.17(i)) — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))