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Machine translation
1. (WO2004004120) FILTERING APPLICABLE TO DIGITAL TO ANALOG CONVERTER SYSTEMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/004120    International Application No.:    PCT/US2003/020403
Publication Date: 08.01.2004 International Filing Date: 26.06.2003
Chapter 2 Demand Filed:    27.01.2004    
IPC:
H03H 19/00 (2006.01), H03M 3/00 (2006.01)
Applicants: QUALCOMM INCORPORATED [US/US]; 5775 Morehouse Drive, San Diego, CA 92121 (US)
Inventors: KEEHR, Edward; (US).
WANG, Sean; (US).
BAZARJANI, Seyfollah; (US)
Agent: WADSWORTH, Philip, R.; Qualcomm Incorporated, 5775 Morehouse Drive, San Diego, CA 92121 (US)
Priority Data:
60/392,363 27.06.2002 US
10/463,969 17.06.2003 US
Title (EN) FILTERING APPLICABLE TO DIGITAL TO ANALOG CONVERTER SYSTEMS
(FR) FILTRAGE APPLICABLE A DES CONVERTISSEURS NUMERIQUES/ANALOGIQUES
Abstract: front page image
(EN)Switched-capacitor filter for filtering the output signal of a digital-to-analog converter augmented with Direct Charge Transfer (DCT) techniques. A digital-to-analog converter augmented with DCT and correlated double sampling (CDS) techniques. A digital to analog converter augmented with Postfilter Droop Compensation. In one embodiment, an electronic system includes a digital-to-analog converter (DAC) having a DAC output (Vin); and an analog postfilter having a postfilter input coupled to the DAC output; said analog postfilter (300) including a first direct charge transfer coupled filter said postfilter employing the CDS technique.
(FR)L'invention concerne un convertisseur numérique/analogique amélioré au moyen de techniques de transfert de charge direct (DCT). L'invention concerne également un convertisseur numérique/analogique amélioré au moyen de techniques DCT et CDS. L'invention concerne également un convertisseur numérique/analogique amélioré au moyen de la compensation de chute de postfiltre.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)