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1. (WO2019050606) TIME-OF-FLIGHT SENSOR READOUT CIRCUIT
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/050606 International Application No.: PCT/US2018/038883
Publication Date: 14.03.2019 International Filing Date: 22.06.2018
IPC:
H04N 5/378 (2011.01) ,H04N 5/357 (2011.01) ,H04N 5/355 (2011.01) ,G01S 17/89 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
369
SSIS architecture; Circuitry associated therewith
378
Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
357
Noise processing, e.g. detecting, correcting, reducing or removing noise
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
30
Transforming light or analogous information into electric information
335
using solid-state image sensors [SSIS]
351
Control of the SSIS depending on the scene, e.g. brightness or motion in the scene
355
Control of the dynamic range
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88
Lidar systems, specially adapted for specific applications
89
for mapping or imaging
Applicants:
MICROSOFT TECHNOLOGY LICENSING, LLC [US/US]; One Microsoft Way Redmond, Washington 98052-6399, US
Inventors:
THOMPSON, Barry; US
PRATHER, Lawrence Albert; US
Agent:
MINHAS, Sandip S.; US
CHEN, Wei-Chen Nicholas; US
HINOJOSA, Brianna L.; US
HOLMES, Danielle J.; US
SWAIN, Cassandra T.; US
WONG, Thomas S.; US
CHOI, Daniel; US
HWANG, William C.; US
WIGHT, Stephen A.; US
CHATTERJEE, Aaron C.; US
JARDINE, John S.; US
GOLDSMITH, Micah P.; US
Priority Data:
15/870,72212.01.2018US
62/556,26608.09.2017US
Title (EN) TIME-OF-FLIGHT SENSOR READOUT CIRCUIT
(FR) CIRCUIT DE LECTURE DE CAPTEUR DE TEMPS DE VOL
Abstract:
(EN) A time-of-flight image sensor including a readout circuit is provided. The readout circuit may include a pixel array including multiple pixels. The pixel array may be configured to produce a pixel signal for each of one or more pixels over a series of timesteps. The pixel signal may include an illuminated value and a reset value. The readout circuit may further include a plurality of gain selection comparators configured to receive the pixel signal and select an amplifier gain value. The readout circuit may further include analog correlated double sampling circuitry. The readout circuit may further include a programmable gain amplifier configured to generate an amplified pixel signal from the pixel signal, which may be amplified at the selected amplifier gain value. The readout circuit may further include a plurality of analog-to-digital converters. Each of the analog-to-digital converters may have a common ramp generated by a global ramp generator.
(FR) L'invention concerne un capteur d'image de temps de vol comprenant un circuit de lecture. Le circuit de lecture peut comprendre un réseau de pixels comprenant de multiples pixels. Le réseau de pixels peut être configuré pour produire un signal de pixels pour chaque pixel parmi un ou plusieurs pixels sur une série d'intervalles temporels. Le signal de pixels peut comprendre une valeur correspondant à un éclairage et une valeur de réinitialisation. Le circuit de lecture peut en outre comprendre une pluralité de comparateurs de sélection de gain configurés pour recevoir le signal de pixels et pour sélectionner une valeur de gain d'amplificateur. Le circuit de lecture peut en outre comprendre un ensemble de circuits analogiques à double échantillonnage corrélé. Le circuit de lecture peut en outre comprendre un amplificateur de gain programmable configuré pour générer un signal de pixels amplifié à partir du signal de pixels, qui peut être amplifié à la valeur de gain d'amplificateur sélectionnée. Le circuit de lecture peut en outre comprendre une pluralité de convertisseurs analogique-numérique. Chacun des convertisseurs analogique-numérique peut avoir une rampe commune générée par un générateur de rampe globale.
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Designated States: 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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)