Information and guiding system including a portable receiver device having an electromagnetic wave antenna and magnetic field sensor
First Claim
1. A system for providing information to a user, comprisingtransmitter means for transmitting to an area for service in which said user is moving at least two predetermined frequencies of electromagnetic radiation in alternating succession, said two frequencies being absorbed by different amounts during travel of said electromagnetic radiation from said transmitter means to said user, andportable receiver means carried by said user for receiving said at least two frequencies, and for determining the distance between said transmitter means and said portable receiver means based on the difference in said absorption during transmission,said portable receiver means including (1) magnetic field detection means for determining values corresponding to at least two components of the magnetic field where said user is located, corresponding to angular orientation of said portable receiver means with respect to said magnetic field and (2) user information means for determining information to be provided to said user, said user information means including indicator means for indicating said information to said user,wherein:
- said user is guided by said information indicated by said portable receiver means from his or her current position as determined by said portable receiver means to at least one of a predetermined target location and a selected target location selected by said user; and
said information indicated to said user depends on said distance and angular orientation as determined by said portable receiver means.
0 Assignments
0 Petitions
Accused Products
Abstract
A portable device for communication is useable during movement by a person. Individual portable receivers (2), the size of a credit card, display and/or broadcast to a user, automatically or by selection, data coming via waves (3) coming from microwave or laser transmitters (1) and FM transmitters (4). The transmitters (1) can cover nerve zones such as population centers, and sequentially send a flow of data transmitted by a digital signal with for instance 900,000 bits/second. At the same time, the transmitters (4) are used to cover 95% of a territory in audio. This provides a service of public interest, allows changing the descriptive speech, provides a choice of messages, offers a presale service, and makes possible selective identification. The device also automatically pinpoints a position with a single transmitter and provides a target objective that is sought to be reached by the user, thus simultaneously meeting the requirements of urban, rural and interior location while being useable with all locomotion means.
86 Citations
16 Claims
-
1. A system for providing information to a user, comprising
transmitter means for transmitting to an area for service in which said user is moving at least two predetermined frequencies of electromagnetic radiation in alternating succession, said two frequencies being absorbed by different amounts during travel of said electromagnetic radiation from said transmitter means to said user, and portable receiver means carried by said user for receiving said at least two frequencies, and for determining the distance between said transmitter means and said portable receiver means based on the difference in said absorption during transmission, said portable receiver means including (1) magnetic field detection means for determining values corresponding to at least two components of the magnetic field where said user is located, corresponding to angular orientation of said portable receiver means with respect to said magnetic field and (2) user information means for determining information to be provided to said user, said user information means including indicator means for indicating said information to said user, wherein: -
said user is guided by said information indicated by said portable receiver means from his or her current position as determined by said portable receiver means to at least one of a predetermined target location and a selected target location selected by said user; and said information indicated to said user depends on said distance and angular orientation as determined by said portable receiver means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification