Electrochromic devices and methods associated therewith

Patent metadata

Field	Value
Publication number	US-11567386-B2
Application number	US-201916593234-A
Country	US
Kind code	B2
Filing date	Oct 4, 2019
Priority date	Oct 10, 2018
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A method of operating an electrochromic device comprising: coupling a logic device to the electrochromic device; applying a voltage to the electrochromic device; receiving a current from the electrochromic device in response to the provided voltage; and with the logic device, determining an exact operating condition of the electrochromic device from the received current. A method of operating a plurality of electrochromic devices comprising: adjusting a frequency of voltage applied to the plurality of electrochromic devices, wherein each of the plurality of electrochromic devices is adjusted by a different frequency; measuring a duration of time required to change tint states of each of the electrochromic devices; and identifying a location of each of the plurality of electrochromic devices in response to the measured duration of time required to change the tint states of each of the electrochromic device.

First claim

What is claimed is:

1. A method of operating a plurality of electrochromic devices comprising:
adjusting a frequency of voltage applied to the plurality of electrochromic devices, wherein each of the plurality of electrochromic devices is adjusted by a different frequency;
measuring a duration of time required to change tint states of each of the electrochromic devices; and
identifying a location of each of the plurality of electrochromic devices based on the measured duration of time required to change the tint states of each of the electrochromic device.

2. The method of claim 1 , further comprising operating at least one particular electrochromic device of the plurality of electrochromic devices after identifying the location of the at least one particular electrochromic device.

3. The method of claim 1 , wherein adjusting the frequency of voltage is performed simultaneously for all of the plurality of electrochromic devices.

4. The method of claim 1 , wherein adjusting the frequency of voltage is performed by a logic device disposed at a location spaced apart from the plurality of electrochromic devices.

5. The method of claim 1 , wherein at least one of the plurality of electrochromic devices is at an unknown tint state prior to adjusting the frequency of the voltage.

6. The method of claim 1 , wherein all of the plurality of electrochromic devices are at unknown tint states prior to adjusting the frequency of the voltage.

7. The method of claim 1 , wherein adjusting the frequency of voltage is performed prior to measuring the duration of time required to change tint states.

Assignees

• Sage Electrochromics Inc

Inventors

• Wang Yigang
• Greer Bryan D
• Bocek Peter
• Giron Jean-Christophe
• Doublein Thomas

Classifications

• G02F1/163 Primary

  Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor · CPC title

• E06B9/24 Primary

  Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00) · CPC title

• E06B2009/2464

  featuring transparency control by applying voltage, e.g. LCD, electrochromic panels · CPC title