Information system
First Claim
1. A local area information system, comprising at least one transmitter connected to a data network, said at least one transmitter having a memory for storing information relating to the local area, and a plurality of portable user devices for receiving the information from the at least one transmitter and presenting the information to a user, wherein the user device is arranged to receive information from the at least one transmitter and to present selected parts of it to a user, wherein each user device includes a user device transmitter such that a user can establish bi-directional communication to access the data network via the at least one transmitter to request information when the requested information is not held in the memory of the at least one transmitter.
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Accused Products
Abstract
An information system is provided for transmitting data into a local area surrounding the transmitter. The transmitter may be used to provide information to pedestrians, or to passing road traffic. Data is stored in a local memory 64 associated with the transmitter such that data stored in the memory can be repeatedly and frequently transmitted to users 70 having suitable reception apparatus 18 in the vicinity of the transmitter.
29 Citations
11 Claims
- 1. A local area information system, comprising at least one transmitter connected to a data network, said at least one transmitter having a memory for storing information relating to the local area, and a plurality of portable user devices for receiving the information from the at least one transmitter and presenting the information to a user, wherein the user device is arranged to receive information from the at least one transmitter and to present selected parts of it to a user, wherein each user device includes a user device transmitter such that a user can establish bi-directional communication to access the data network via the at least one transmitter to request information when the requested information is not held in the memory of the at least one transmitter.
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11. A local area information system data node comprising a transmitter, a receiver, a local memory and a further communication device for establishing communication with a computer having access to the Internet, wherein the local memory stores data, and wherein a local area information node is, in use, further arranged to establish wireless communication with a user device such that the user can receive information from the local memory when the information that the user wants is stored in the local memory, and the user can access information via the further communications device when the information is not stored in the local memory.
Specification