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Machine translation
1. (WO2000029821) DETECTION CIRCUIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/029821    International Application No.:    PCT/EP1999/008820
Publication Date: 25.05.2000 International Filing Date: 17.11.1999
Chapter 2 Demand Filed:    18.05.2000    
IPC:
G01J 1/44 (2006.01)
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON [SE/SE]; S-126 25 Stockholm (SE)
Inventors: THOMPSON, John; (GB).
FILIPPI, Raymond; (GB).
BÄNGS, Joakim; (GB)
Agent: O'CONNELL, David, Christopher; Haseltine Lake & Co. Imperial House 15-19 Kingsway London WC2B 6UD (GB)
Priority Data:
9825304.0 18.11.1998 GB
Title (EN) DETECTION CIRCUIT
(FR) CIRCUIT DE DETECTION
Abstract: front page image
(EN)A photodiode detection circuit using a transimpedance amplifier circuit is disclosed. Overload current from the photodiode is diverted away from the amplifier to a voltage supply, e.g. ground, through an overload protection diode connected in series with the photodiode. A differential structure is also disclosed.
(FR)L'invention concerne un circuit de détection à photodiode, utilisant un circuit amplificateur de transimpédance. Un courant de surcharge provenant de la photodiode est dévié à partir d'une tension d'alimentation, par exemple la terre, par l'intermédiaire d'une diode de protection contre les surcharges, montée en série avec la photodiode. L'invention concerne également une structure différentielle.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)