Spatial location presentation in head worn computing

Patent metadata

Field	Value
Publication number	US-9401540-B2
Application number	US-201414451566-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Feb 11, 2014
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

Aspects of the present invention relate to the stabilization of head-worn micro-Doppler antennas.

First claim

We claim:

1. A head-worn micro-Doppler system, comprising:
a. a helmet mount adapted to be removably attached to a helmet; and
b. a micro-Doppler antenna securely mounted on the helmet mount, wherein the micro-Doppler antenna is stabilized with respect to the environment such that the micro-Doppler antenna position is moved to compensate for helmet movements.

2. The head-worn micro-Doppler system of claim 1 , wherein the micro-Doppler antenna is stabilized with a piezo-electric motor.

3. The head-worn micro-Doppler system of claim 2 , wherein motions of the helmet mount are monitored with an inertial sensor and the inertial sensor outputs control signals to operate the piezo-electric motor.

4. A head-worn micro-Doppler system, comprising:
a. a helmet mount adapted to be removably attached to a helmet; and
b. a first micro-Doppler antenna attached to the helmet mount; and
c. a second micro-Doppler antenna attached to the helmet mount,
d. wherein each of the first and second micro-Doppler antenna are independently stabilized with respect to the helmet such that each of the first and second micro-Doppler antenna's positions are compensated independently to maintain fixed positions relative to the environment as the helmet mount moves.

5. A head-worn micro-Doppler system, comprising:
a. a helmet mount adapted to be removably attached to a helmet;
b. a micro-Doppler antenna mounted on the helmet mount, wherein the micro-Doppler antenna is stabilized relative to the environment such that the micro-Doppler antenna is held in a fixed position as the helmet moves during a radar pulse; and
c. an inertial measurement unit (IMU) mounted on the micro-Doppler antenna adapted to monitor movements from the fixed position and generate an error statistic relating to movements from the fixed position, wherein the error statistic is used to determine compensating movements of the micro-Doppler antenna relative to the helmet mount to return the micro-Doppler antenna to the fixed position.

Assignees

• Osterhout Group Inc

Inventors

• Osterhout Ralph F
• Lohse Robert Michael
• Haddick John D
• Border John N

Classifications

• H01Q1/276 Primary

  for mounting on helmets · CPC title

• H01Q1/273 Primary

  Adaptation for carrying or wearing by persons or animals · CPC title

• G02B27/017

  Head mounted · CPC title