Granted Patent B2

US 12,436,438 · App. 16/946,196 · Granted Oct 7, 2025

Inventors: Stephen C. Brown (San Mateo, CA); Dhairya Shrivastava (Los Altos, CA)

Assignee: View Operating Corporation

G02F1/163E06B7/28E06B9/24G02F1/13318H04L12/2803E06B2009/2464

Abstract

Claims (15)

1. A window controller for controlling a window, the window controller comprising one or more microprocessors configured to:

determine a wire length between the controller and the window;

actively and reversibly power a reversible optical transition between at least a bleached end state and a colored end state of the window, wherein powering is based, at least in part, on the determined length of the wire, wherein the window comprises a first conductive layer, a second conductive layer, and an electrochromic layer between the first and second conductive layers, wherein powering the reversible optical transition comprises applying a DC voltage to the first and second conductive layers to provide an electrical potential across the electrochromic layer establishing a load, wherein the load is floated; and

communicate with a communication node.

2. The window controller of claim 1 wherein determining the wire length is performed actively.

3. The window controller of claim 1 wherein determining the wire length is performed passively.

4. The window controller of claim 1 wherein the one or more microprocessors are further configured to measure a transmittance of the window and wherein powering is further based, at least in part, on the measured transmittance.

5. The window controller of claim 1 wherein the one or more microprocessors are further configured to measure a size of the window and wherein powering is further based on the measured size.

6. The window controller of claim 1 wherein the one or more microprocessors are further configured to:

determine damage to the window based on current information; and

in response to determining damage, repair the window by sending a high voltage current through the window.

7. The window controller of claim 1 wherein the one or more microprocessors are further configured to determine a temperature of the window based on current information.

8. The window controller of claim 1 wherein the one or more microprocessors are further configured to store charge resulting from a transition of the window and to direct such charge to a power grid.

9. The window controller of claim 1 wherein the one or more microprocessors are further configured to heat the window by passing current through one or more electrodes at the window.

10. The window controller of claim 1 wherein the one or more microprocessors are further configured to store and transmit data relating to the window via a radio-frequency identification tag or via memory.

Assignments (5)

Continuity (4)

References Cited (400)