Altasens, Inc.

Qianjiang Mao

Laurent Blanquart

John Daniel Wallner

Giuseppe Rossi

Roberto Marchesini

Lester Joseph Kozlowski

Ying Huang

Gaurang Patel

Naveen Kolli

Emanuele Mandelli

Gregory Chow

Jonathan Stern

Programmable data readout for optical image sensors is disclosed herein. By way of example, vertical skipping and vertical mixing functionality is provided that is responsive to commands, enabling dynamic selectivity and processing of optical sensor data. A data output control system can be incorporated with or coupled to data readout circuitry of an optical sensor. The output control system comprises a vertical skipping engine that can dynamically select a subset of data for output in response to one or more skipping commands, and a vertical mixing engine that can act upon subsets of data in accordance with processing functions called by respective mixing commands. The disclosure provides simplification of selective data readout and processing for image sensors, potentially reducing design, testing, and maintenance overhead, as well as cost and number of integrated circuit components.

Programmable data readout for an optical sensor

An image sensor, system and method that alternates sub-sets of pixels with long exposure times and pixels with short exposure times on the same sensor to provide a sensor having improved Wide Dynamic Range (WDR). The sub-sets of pixels are reset at different time intervals after being read, which causes the respective integration times to vary. By combining information contained in the both the short and long integration pixels, the dynamic range of the sensor is improved.

Image sensor with wide dynamic range

Systems and methods are provided that facilitate employing a plurality of independent reset buses for a column of pixels in a pixel array of a CMOS sensor imager. Utilization of the plurality of independent reset buses for the column of pixels can enable independent reset to be effectuated when employing sub-frame integration. For example, rows to be read and reset during a given readout time interval can be selected based upon one or more criteria. Further, each of the rows selected during the given readout time interval can be associated with a respective distinct reset bus. By leveraging the plurality of independent reset buses, uniformity in pixel operation can be maintained whether operating in full frame integration mode or sub-frame integration mode. Thus, noise resultant from changing between integration modes can be mitigated by using the plurality of independent reset buses.

Sub-frame tapered reset

The claimed subject matter provides systems and/or methods that facilitate controlling timing dependencies in a mixed signal circuit. Timing performance associated with a horizontal scanner and an analog to digital converter (ADC) can be monitored. Moreover, data related to the monitored timing performance can be leveraged to modify timing parameter(s) of clocks that coordinate operations of the horizontal scanner and the ADC (e.g., and/or digital component(s) included in the mixed signal circuit). For example, the clocks associated with the horizontal scanner and the ADC can be independently tuned to optimize mixed signal circuit performance.

Controlling timing dependencies in a mixed signal system-on-a-chip (SOC)

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Chino Hills, CA, United States of America

Qianjiang Mao