Combined global positioning system receiver and radio
First Claim
1. A portable GPS/radio unit capable of wirelessly communicating with one or more other such units, wherein each of said other units is adapted to transmit radio signals indicative of that unit'"'"'s location, said GPS/radio unit comprising:
- a GPS receiver for receiving satellite signals from a plurality of satellites;
a processor coupled with said GPS receiver for calculating the location of said GPS/radio unit as a function of the received satellite signals;
a radio receiver coupled with the processor for receiving the radio signals transmitted by said other units, said processor being adapted to identify the location of said other units based on the received radio signals;
a display coupled with the processor for indicating the location of at least one of said other units;
a transmitter coupled with said processor for transmitting a radio signal to at least one of said other units, wherein said radio signal is indicative of a location of said portable GPS/radio unit;
a speaker and a microphone for permitting voice communications with said other units; and
a portable, handheld housing for housing said GPS receiver, said processor, said radio receiver, said display and said transmitter.
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Accused Products
Abstract
A portable GPS/radio unit communicates over a wireless radio network with at least one other unit which is transmitting radio signals over the network indicative of that unit'"'"'s location. The GPS/radio unit comprises a GPS receiver for receiving satellite signals from a plurality of satellites, a radio receiver for receiving the radio signals transmitted by the other unit, a processor for calculating the unit'"'"'s location as a function of the received satellite signals and for identifying the location of the other unit based on the received radio signals, and a display for indicating the location of the other unit. The display may indicate the respective locations of multiple units and may also display unique identifiers for each of the units. A system and method for indicating the location of one portable GPS/radio unit on the display of another portable GPS/radio unit involves at least two such units communicating with one another over a wireless radio network.
266 Citations
49 Claims
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1. A portable GPS/radio unit capable of wirelessly communicating with one or more other such units, wherein each of said other units is adapted to transmit radio signals indicative of that unit'"'"'s location, said GPS/radio unit comprising:
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a GPS receiver for receiving satellite signals from a plurality of satellites;
a processor coupled with said GPS receiver for calculating the location of said GPS/radio unit as a function of the received satellite signals;
a radio receiver coupled with the processor for receiving the radio signals transmitted by said other units, said processor being adapted to identify the location of said other units based on the received radio signals;
a display coupled with the processor for indicating the location of at least one of said other units;
a transmitter coupled with said processor for transmitting a radio signal to at least one of said other units, wherein said radio signal is indicative of a location of said portable GPS/radio unit;
a speaker and a microphone for permitting voice communications with said other units; and
a portable, handheld housing for housing said GPS receiver, said processor, said radio receiver, said display and said transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 35, 41, 42, 43, 44)
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12. A system in which a plurality of portable GPS/radio units wirelessly communicate with one another, said system comprising:
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a first portable GPS/radio unit having a GPS receiver for receiving satellite signals from a plurality of satellites, a processor coupled with said GPS receiver for calculating the location of said first unit as a function of the received satellite signals, a radio transmitter coupled with the processor for transmitting a radio signal including information indicative of the location of said first unit, a radio receiver, a microphone, a speaker, and a display; and
a second portable GPS/radio unit having a GPS receiver for receiving satellite signals from a plurality of satellites, a processor coupled with said GPS receiver for calculating the location of said second unit as a function of the received satellite signals, a radio receiver coupled with the processor for receiving said radio signal from said first other portable unit, a display coupled with the processor, a microphone and a speaker for permitting voice communications with the first unit, and a radio transmitter coupled with said processor for transmitting a radio signal including information indicative of the location of the second unit;
wherein the processor of said second unit, upon receiving said information indicative of the location of said first unit, displays an indication thereof on said display of said second, portable unit, and wherein the processor of said first unit, upon receiving said information indicative of the location of said second unit, displays an indication thereof on said display of said first portable unit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 45)
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25. A method for displaying the location of a first portable GPS/radio unit on a second portable GPS/radio unit, said method comprising:
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receiving a first set of satellite signals from a plurality of satellites at a first portable GPS/radio unit;
calculating the location of the first unit as a function of the first set of received satellite signals;
receiving a second set of satellite signals from a plurality of satellites at a second portable GPS/radio unit;
calculating the location of the second unit as a function of the second set of received satellite signals;
transmitting the location of the first unit to the second unit over a wireless radio network in association with a voice communication transmitted from the first unit to the second unit; and
displaying the location of the first unit on the second unit. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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36. An electronic system comprising:
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a first, portable electronic device having a processor, a transmitter, and a receiver; and
a second, portable electronic device having a processor, a transmitter, and a receiver, wherein said first portable electronic device determines its location and wirelessly sends a signal indicative of its said location to said second portable electronic device, and wherein said second portable electronic device determines its location and wirelessly sends a signal indicative of its said location to said first portable electronic device;
wherein said first portable electronic device has a display and said second portable electronic device has a display wherein said display of each device displays information indicative of said determined location of each unit; and
wherein each said portable electronic device has a microphone and a speaker for permitting voice communication between said first and second devices. - View Dependent Claims (37, 46, 47, 48)
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38. GPS/radio unit capable of wirelessly communicating with one or more other such units, wherein each of said other units is adapted to transmit radio signals indicative of that unit'"'"'s location, said GPS/radio unit comprising:
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a processor;
a transmitter;
receiver, wherein said GPS/radio unit determines its location and wirelessly transmits a signal indicative of its said determined location to at least one of said other units, and wherein said GPS/radio unit wirelessly receives a signal, from at least one of said other units, indicative of the location of the unit from which said received signal is transmitted;
wherein said first portable electronic device has a display and said second portable electronic device has a display wherein said display of each device displays information indicative of said determined location of each unit; and
wherein said portable GPS/radio unit further comprises;
a microphone; and
a speaker, wherein said GPS/radio unit is adapted for voice communication with one or more of said other such units. - View Dependent Claims (39, 40, 49)
a display for displaying an indication of said determined location of said GPS/radio unit and information indicative of a location of each said unit from which a received signal is received.
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40. The portable GPS/radio unit as set forth in claim 38 wherein said radio signal is transmitted in a UHF 460 MHz band.
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49. The portable GPS/radio unit of claim 38, wherein said radio signal is transmitted via Family Radio service.
Specification