Interbuilding and urban canyon extension solution for global positioning systems
First Claim
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1. A receiver unit for use with a plurality of transmitters, each transmitter emitting a limited range receive position signal indicative of a position of the transmitter, the receiver unit comprising:
- a receiver circuit for receiving the limited range receive position signal;
a transmitter circuit; and
a storage buffer coupled to the transmitter circuit, the storage buffer storing an identification code, the transmitter circuit transmitting a transmit position signal indicative of the limited range receive position signal and the identification code.
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Abstract
A global positioning system (GPS) and auxiliary receiver receive limited range position signals broadcasted from telemetry transmitters when in an urban canyon environment. The limited range receivers preferably are implemented as part of the lighting infrastructure of the environment. The limited range receivers derive power from light from the lighting infrastructure. The receivers can also include a transmitter for retransmitting the receive position data and an ID code to a central processing center.
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Citations
14 Claims
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1. A receiver unit for use with a plurality of transmitters, each transmitter emitting a limited range receive position signal indicative of a position of the transmitter, the receiver unit comprising:
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a receiver circuit for receiving the limited range receive position signal; a transmitter circuit; and a storage buffer coupled to the transmitter circuit, the storage buffer storing an identification code, the transmitter circuit transmitting a transmit position signal indicative of the limited range receive position signal and the identification code. - View Dependent Claims (2, 3, 4)
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5. A unified positioning receiver system, comprising:
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a satellite receiver circuit for receiving satellite signals and determining a first position in response to the satellite signals; and an auxiliary receiver circuit for receiving limited range signals and for determining a second position in response to the limited range signals, the limited range signals including a position code, the auxiliary receiver circuit utilizing the position code to determine the second position. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification