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公开(公告)号：DE60216209D1
公开(公告)日：2007-01-04
申请号：DE60216209
申请日：2002-09-25
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： WILLINS BRUCE A , GOREN DAVID , VOLKOMMER RICHARD M
Abstract: An object locator system (100) generates an audio signal as if emanating from the object (118) as a user (102) varies angular orientation and distance from an object (118) or site to be located within an area. A computer (106) linked to an access transceiver (110,112) receives transmissions from a user (102) wearing a headset (104) including a transceiver (202) and electronic compass (122). The compass (122) provides a signal indicative of the user orientation. An access transceiver (110,112) receives the signal and calculates the location of the user (102) based on the time difference of arrival of the RF signal and triangulation of the user movement. An accelerometer (204) in the headset (104) continuously tracks user movement. The location of the object (118) in a vertical direction is provided by a directory or other reference source stored in the computer (106). Based on the angular orientation, horizontal and vertical distance of the object (118) or site relative to the user (102), the computer (106) maps the location information into sounds in the form of pulse amplitude or frequency modulated sound. The audio signal is perceived by the user (102) as emanating from the object (118) or site.
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公开(公告)号：DE60216209T2
公开(公告)日：2007-09-13
申请号：DE60216209
申请日：2002-09-25
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： WILLINS BRUCE A , GOREN DAVID , VOLKOMMER RICHARD M
Abstract: An object locator system (100) generates an audio signal as if emanating from the object (118) as a user (102) varies angular orientation and distance from an object (118) or site to be located within an area. A computer (106) linked to an access transceiver (110,112) receives transmissions from a user (102) wearing a headset (104) including a transceiver (202) and electronic compass (122). The compass (122) provides a signal indicative of the user orientation. An access transceiver (110,112) receives the signal and calculates the location of the user (102) based on the time difference of arrival of the RF signal and triangulation of the user movement. An accelerometer (204) in the headset (104) continuously tracks user movement. The location of the object (118) in a vertical direction is provided by a directory or other reference source stored in the computer (106). Based on the angular orientation, horizontal and vertical distance of the object (118) or site relative to the user (102), the computer (106) maps the location information into sounds in the form of pulse amplitude or frequency modulated sound. The audio signal is perceived by the user (102) as emanating from the object (118) or site.
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