# US 2018/0027191 A2 · System for controlling pixel array sensor with independently controlled sub pixels

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- Number: US 2018/0027191 A2
- Document ID: US20180027191A2
- Status: Published application
- Kind: A2
- Application number: 15/104,557
- Filed: 2014-12-17
- Published: 2018-01-25
- Earliest claimed: 2014-12-17
- Assignees: Brightway Vision Ltd.
- Applicants: Brightway Vision Ltd.
- Inventors: Yoav GRAUER
- Web page: https://patentgrep.com/patent/US20180027191A2

## CPC

- H04N 13/286: having separate monoscopic and stereoscopic modes
- H04N 23/11: for generating image signals from visible and infrared light wavelengths
- H04N 23/56: provided with illuminating means
- H04N 23/74: by influencing the scene brightness using illuminating means
- H04N 25/131: including elements passing infrared wavelengths
- H04N 25/134: {based on three different wavelength filter elements}
- H04N 25/534: depending on the spectral component
- H10F 39/8053: {Colour filters}
- B60R 2300/107: using stereoscopic cameras
- B60R 2300/307: virtually distinguishing relevant parts of a scene from the background of the scene
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A system for controlling a pixel array sensor with independently controlled sub pixels is provided herein. The system includes at least one image detector, comprising an array of photo-sensitive pixels, each photo-sensitive pixel comprising at least one first type photo-sensitive sub pixel and plurality of second type photo-sensitive sub pixels; and a processor configured to control the at least first type controlled photo-sensitive sub pixel and the plurality of second type second type photo-sensitive sub pixels according to a specified exposure scheme, wherein the processor is further configured to control the at least one first type sub pixel independently of the specified exposure scheme, wherein the processor is further configured to selectively combine data coming from the at least one first type sub pixel with data coming from at least one of the plurality of second type sub pixels.

## Claims

### Claim 1

A system comprising:
at least one image detector, comprising an array of photo-sensitive pixels, each photo-sensitive pixel comprising at least one first type photo-sensitive sub pixel and at least one second type photo-sensitive sub pixel; and
a processor configured to control the at least one first type controlled photo-sensitive sub pixel and the at least one second type photo-sensitive sub pixels according to a specified exposure scheme,
wherein an exposure of at least one of the first type photo-sensitive sub pixel is synchronized with pulsed light present in the scene, to achieve gated images of the scene,
wherein the processor is further configured to control the at least one first type sub pixel independently of the specified exposure scheme, and
wherein the processor is further configured to selectively combine data coming from the at least one first type sub pixel with data coming from the at least one second type sub pixel.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the processor is further configured to control at least one of: exposure, and readout, of the at least one first type sub pixel, based on data coming from the at least one second type sub pixel.

### Claim 3 (depends on 1)

The system according to claim 1, wherein the photo sensitive sub pixels have an anti-blooming capability so that a saturated sub pixel does not affect adjacent sub pixels.

### Claim 4 (depends on 3)

The system according to claim 3, wherein the anti-blooming capability exhibit a ratio that is greater than 1:1000.

### Claim 5 (depends on 1)

The system according to claim 1, wherein the system is mounted on a moving platform.

### Claim 6 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel is infra-red (IR) sensitive.

### Claim 7 (depends on 6)

The system according to claim 6, wherein the at least one first type photo-sensitive sub pixel has a full width half maximum transmission of up to five percent of the center wavelength.

### Claim 8 (depends on 7)

The system according to claim 7, wherein the at least one first type photo-sensitive sub pixel has an off band rejection of less than ten percent.

### Claim 9 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel is sensitive to visible spectrum.

### Claim 10 (depends on 9)

The system according to claim 9, wherein the at least one first type photo-sensitive sub pixel has a full width half maximum transmission of up to ten percent of the center wavelength.

### Claim 11 (depends on 10)

The system according to claim 10, wherein the at least one first type photo-sensitive sub pixel has an off band rejection of less than ten percent.

### Claim 12 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel has a larger area than the at least one second type photo-sensitive sub pixel.

### Claim 13 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel has a smaller area than the area of the at least one second type photo-sensitive sub pixel.

### Claim 14 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel comprises readout channel which is separate from the readout channel of the at least one second type photo-sensitive sub pixel.

### Claim 15 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel is coupled to an amplifier configured to amplify a signal coming from the at least one first type photo-sensitive sub pixel independently of the signals coming from the at least one second type photo-sensitive sub pixel.

### Claim 16

(canceled)

### Claim 17 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel exposure scheme is synchronized with an external light source pulsing scheme.

### Claim 18 (depends on 1)

The system according to claim 1, wherein the at least one first type photo-sensitive sub pixel exposure scheme is synchronized with an external light source modulation scheme.

### Claim 19 (depends on 1)

The system according to claim 1, further comprising an external light source and wherein the at least the first type sub pixel is coupled to a filter having a spectral range similar to a spectral range of the external light source.

### Claim 20 (depends on 1)

The system according to claim 1 wherein the data selectively combined by the processor includes data captured at different exposure times.

### Claim 21 (depends on 1)

The system according to claim 1, wherein the selectively combined data coming from the at least one first type sub pixel with data coming from at least one of the plurality of second type sub pixels is usable for Advance Driver Assistance Systems (ADAS) functions.

### Claim 22 (depends on 1)

The system according to claim 1, further comprising a pulsed light source configured to generate the pulsed light present in the scene.

### Claim 23 (depends on 1)

The system according to claim 1, wherein the processor is configured to detect parameters of the pulsed light for synchronizing the at least one of the first type photo-sensitive sub pixel, wherein the pulsed light present in the scene is generated independently of the system.

### Claim 24 (depends on 1)

The system according to claim 1, wherein the photo-sensitive pixels are infra-red (IR) sensitive and wherein at least one of the first type photo-sensitive sub pixel is further sensitive to a visible light spectrum.

### Claim 25 (depends on 24)

The system according to claim 24, wherein the selective combining data by the processor is usable for providing an infra-red (IR) image of the array of photo-sensitive pixels.

### Claim 26 (depends on 24)

The system according to claim 24, wherein the selective combining data by the processor is usable for providing an infra-red (IR) and visible spectrum image of the array of photo-sensitive pixels.
