Mahdi Nezamabadi

Address:

14 Palmer Dr, Moorestown, NJ 08057

Phone:

856 780-5572

VIN:

3VWRZ71K68M068718

Make:

VOLKSWAGEN

Model:

JETTA

Year:

2008

Address:

14 Palmer Dr, Moorestown, NJ 08057

Phone:

856 780-5572

VIN:

19UUA66247A047628

Make:

ACURA

Model:

TL

Year:

2007

US Patent:

20120299817, Nov 29, 2012

Filed:

May 17, 2012

Appl. No.:

13/474693

Inventors:

Robin Atkins - Vancouver, CA
Neil W. Messmer - Langley, CA
Scott Daly - Kalama WA, US
Mahdi Nezamabadi - Moorestown NJ, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G06F 3/01

US Classification:

345156

Abstract:

Several embodiments of image processing systems and methods are disclosed herein whereby at least one characteristic of an image displayed on a target display is changed according to information regarding the viewer's position—e.g. distance to the target display, the visual angle the target display's subtends of the viewer's field of view. In one embodiment, luminance and/or contrast may be changed depending on the information regarding viewer's position relative to the target display.

US Patent:

20220415283, Dec 29, 2022

Filed:

Aug 22, 2022

Appl. No.:

17/892473

Inventors:

- San Francisco CA, US
Scott DALY - Kalama WA, US
Mahdi NEZAMABADI - Moorestown NJ, US
Robin ATKINS - San Jose CA, US

Assignee:

Dolby Laboratories Licensing Corporation - San Francisco CA

International Classification:

G09G 5/10
H04N 19/40
G06F 3/14
G09G 5/00
G09G 5/06

Abstract:

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

US Patent:

20230105944, Apr 6, 2023

Filed:

Dec 7, 2022

Appl. No.:

18/076993

Inventors:

- San Francisco CA, US
Scott DALY - Kalama WA, US
Mahdi NEZAMABADI - Moorestown NJ, US
Robin ATKINS - San Jose CA, US

Assignee:

Dolby Laboratories Licensing Corporation - San Francisco CA

International Classification:

G09G 5/10
H04N 19/40
G09G 5/06
G09G 5/00
G06F 3/14

Abstract:

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

US Patent:

20210357044, Nov 18, 2021

Filed:

Jul 30, 2021

Appl. No.:

17/390641

Inventors:

- Cupertino CA, US
Mahdi Nezamabadi - San Jose CA, US
Tze Yong Poh - Singapore, SG

International Classification:

G06F 3/0354
G06F 3/041
G06F 3/0488

Abstract:

A device such as a computer stylus may have a color sensor. The color sensor may have a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have one or more light-emitting devices. Control circuitry may use the light-emitting devices to illuminate an external object while using the photodetectors to measure reflected light to determine the color of the external object. The electronic device may have a housing with an elongated shaft. The shaft may have a tip and an opposing end. The tip may be configured to emit electromagnetic signals that are detected by a touch sensor in a touch sensitive display. The color sensor may be located at the end opposite the tip, may be located at the tip, or may be optically coupled to the tip using a light guide.

US Patent:

20210280154, Sep 9, 2021

Filed:

Mar 22, 2021

Appl. No.:

17/208886

Inventors:

- San Francisco CA, US
Scott DALY - Kalama WA, US
Mahdi NEZAMABADI - Moorestown NJ, US
Robin ATKINS - San Jose CA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - SAN FRANCISCO CA

International Classification:

G09G 5/10
H04N 19/40
G06F 3/14
G09G 5/00
G09G 5/06

Abstract:

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

US Patent:

20210043130, Feb 11, 2021

Filed:

Aug 8, 2019

Appl. No.:

16/535734

Inventors:

- Cupertino CA, US
Shen Ren - Cupertino CA, US
Christopher M. Dodson - Santa Clara CA, US
Kenneth J. Vampola - Los Altos CA, US
Mahdi Nezamabadi - San Jose CA, US
Ates C. Dumlupinar - San Jose CA, US

International Classification:

G09G 3/32
G01J 1/42

Abstract:

An electronic device may have a display. The display may have light-emitting diode pixels or other pixels. Due to aging-induced degradation of the pixels, the output intensity and color of the pixels may vary over the lifetime of the display. Control circuitry in the device may use an ambient light sensor to measure ambient light and stray display light. The display light measurements may be used in monitoring aging effects so that the control circuitry can compensate for aging-induced pixel degradation. Display light measurements may be made over a sequence of image frames. The image frames in the sequence of frames may include white and black frames or frames of different colors interleaved with black frames. Different frame intensities may be used during measurements of stray display light to gather gamma curves for the display.

US Patent:

20200348790, Nov 5, 2020

Filed:

May 2, 2019

Appl. No.:

16/401861

Inventors:

- Cupertino CA, US
Joshua A. Spechler - Cupertino CA, US
Weili Chen - Champaign IL, US
Christopher M. Dodson - Santa Clara CA, US
Mahdi Nezamabadi - San Jose CA, US

International Classification:

G06F 3/041
G09G 3/34
H05B 37/02
G02F 1/1335

Abstract:

An electronic device may have a display with an array of pixels configured to display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A set of the pixels may overlap the ambient light sensor so that ambient light measurements may be made on ambient light passing through the set of pixels. Control circuitry in the electronic device may control light transmission through the set of pixels so that different light transmission levels can be used in different ambient light conditions. Directional light measurements may be made by moving transparent pixels dynamically across the surface of the display overlapping the light sensor and/or by using pixelated light modulators to vary the angle of light rays measured by the ambient light sensor.

US Patent:

20200225778, Jul 16, 2020

Filed:

Nov 13, 2019

Appl. No.:

16/682857

Inventors:

- Cupertino CA, US
Mahdi Nezamabadi - San Jose CA, US
Tze Yong Poh - Singapore, SG

International Classification:

G06F 3/0354
G06F 3/0488
G06F 3/041

Abstract:

A device such as a computer stylus may have a color sensor. The color sensor may have a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have one or more light-emitting devices. Control circuitry may use the light-emitting devices to illuminate an external object while using the photodetectors to measure reflected light to determine the color of the external object. The electronic device may have a housing with an elongated shaft. The shaft may have a tip and an opposing end. The tip may be configured to emit electromagnetic signals that are detected by a touch sensor in a touch sensitive display. The color sensor may be located at the end opposite the tip, may be located at the tip, or may be optically coupled to the tip using a light guide.