The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Sep. 29, 2020
Omnivision Technologies, Inc., Santa Clara, CA (US);
OMNIVISION TECHNOLOGIES, INC., Santa Clara, CA (US);
Abstract
Switching techniques for fast voltage settling in image sensors are described. In one embodiment, a transfer gate (TX) driver circuit of an image sensor includes a TX driver configured to provide a TX driver voltage to a plurality of pixels of an image sensor. A power supply (NVDD) is operationally coupled to the TX driver. A first switch (SW) operationally coupling an outside capacitance (Cext) and the TX driver. A second switch (SW) operationally coupling the Cext and the NVDD. A third switch (SW) operationally coupling the NVDD and the TX driver. A falling edge of the TX driver voltage is configured to control a start of data transfer from individual pixels of the plurality of pixels. The SWand the SWare configured in an open position before the falling edge of the TX driver voltage. The SWis configured in a closed position before the falling edge.