US 11,815,690 B2
Head mounted display symbology concepts and implementations, associated with a reference vector
Avner Shahal, Haifa (IL); Omer Hasharoni, Haifa (IL); and Yuval Assaf, Haifa (IL)
Assigned to Elbit Systems Ltd., Haifa (IL)
Filed by Elbit Systems Ltd., Haifa (IL)
Filed on Aug. 22, 2022, as Appl. No. 17/892,141.
Application 17/892,141 is a continuation of application No. 16/066,681, granted, now 11,422,370, previously published as PCT/IL2016/051389, filed on Dec. 28, 2016.
Claims priority of application No. 243400 (IL), filed on Dec. 29, 2015.
Prior Publication US 2022/0404624 A1, Dec. 22, 2022
Int. Cl. G02B 27/01 (2006.01); G06F 3/01 (2006.01); G09G 5/38 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 27/017 (2013.01); G02B 27/0179 (2013.01); G06F 3/012 (2013.01); G06F 3/013 (2013.01); G09G 5/38 (2013.01); G02B 2027/0141 (2013.01); G02B 2027/0187 (2013.01); G09G 2354/00 (2013.01); G09G 2380/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A head mounted display (HMD) for stabilizing a symbology according to a reference vector by anchoring the symbology to the reference vector, said HMD comprising:
a line of sight (LOS) tracker; and
a display controller configured to present the symbology to a user of a vehicle based on LOS of the user received from the LOS tracker,
wherein the display controller receives the reference vector and determines movements of the symbology according to a spatial relation between the LOS of the user as received from the LOS tracker and the reference vector,
wherein the display controller is further configured to anchor to the reference vector at least part of the symbology, in a case that the HMD is moving fast or vibrating, while rest of the symbology is moved along with the LOS of the user, to provide a clearer and more stable view to the user through the HMD,
wherein the display controller is configured to display a reference symbol that indicates the reference vector, maintain the symbology static upon movements of the reference symbol within a predefined region and further move the symbology upon movements of the reference symbol beyond the predefined region, and in a same direction thereof.