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.

Date of Patent:
Jul. 09, 2024

Filed:

Nov. 13, 2020
Applicant:

Dualitas Ltd, Milton Keynes, GB;

Inventor:

Mikael Collin, Knowlhill, GB;

Assignee:

Dualitas Ltd, Milton Keynes, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 27/09 (2006.01); G03H 1/02 (2006.01); G03H 1/08 (2006.01); G03H 1/22 (2006.01); G06F 7/552 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 27/0961 (2013.01); G03H 1/0808 (2013.01); G06F 7/552 (2013.01); G03H 2001/0224 (2013.01); G03H 2001/0816 (2013.01); G03H 2001/0825 (2013.01); G03H 1/2294 (2013.01);
Abstract

A logic circuit comprises a logic sub-circuit arranged to output a stream, S1, of Fresnel lens values, F(x), of a Fresnel lens for display on [m×n] pixels of a pixelated display device, and an iterative method outputs a stream, S1, of Fresnel lens values, F(x), of a Fresnel lens for display on [m×n] pixels of a pixelated display device. The circuit and method can reduce the number of multiplications used to provide each value of a stream of display values for the display device, wherein the display values include values of a Fresnel lens function. Accordingly, they can be implemented in an advanced integrated circuit, such as a field-programmable gate array.


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