×

Process and system enabling the blind or partially sighted to find their bearings and their way in an unknown environment

  • US 6,486,784 B1
  • Filed: 07/18/2000
  • Issued: 11/26/2002
  • Est. Priority Date: 12/01/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. System enabling blind or partially sighted subjects (40) to find their bearings and way in an unknown environment (41, 46), said system comprising:

  • firstly, a plurality of micro-transmitters (20, 43a, 43b, 43c, 43d), particularly in the form of chips positioned along the path (41, 46) to be followed by blind or partially sighted subjects;

    said chips comprising a memory (25) containing bearing information concerning the position and the path to follow, and transmission means (26, 27) to transmit said bearing information, secondly, a portable object (1, 11) provided to blind or partially sighted subjects comprising (40), means to receive (7, 8) the information transmitted by the micro-transmitters (20), means to select (16) a destination, calculation means (6) to calculate the direction of movement (45a, 45b, 45c, 45d) of blind or partially sighted subjects with reference to the direction of a bearing (12), particularly a compass, and to calculate the direction to follow (17, 44, 47) according to the direction of the bearing (12), the selected destination and the information transmitted by the micro-transmitters (20), means for transmitting (2) the direction to follow (17, 44, 47) to blind or partially sighted subjects (40), particularly tactile means or audio means.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×