Device for exchanging environmental information between a master unit and a slave unit
First Claim
1. A device for exchanging temperature, humidity and/or air pressure data between a master unit and a slave unit, the master unit comprising an energy source, a display, a transmitter for transmitting an unmodulated radio signal, and a receiver for receiving temperature, humidity and/or air pressure information for presenting on the display, the slave unit comprising an energy storage device, a sensor for obtaining temperature, humidity and/or air pressure information, a transmitter for transmitting temperature, humidity and/or air pressure information, and a receiver circuit for receiving the unmodulated radio signal and wherein energy from the unmodulated radio signal is stored in the energy storage device and activates the slave unit.
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Abstract
In a device for exchanging data between a master unit and a slave unit the master unit has an energy source, a display for presenting environmental information, and a first transceiver for transmitting energy and receiving data signals. The slave unit has an energy storage device, an sensor for obtaining environmental information, and a second transceiver circuit for receiving energy and transmitting data signals. Energy for operation of the slave unit is transmitted from the master unit to the slave unit and stored in the energy storage device. Environmental information is then transmitted from the slave unit to the master unit and presented on the display.
11 Citations
8 Claims
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1. A device for exchanging temperature, humidity and/or air pressure data between a master unit and a slave unit,
the master unit comprising an energy source, a display, a transmitter for transmitting an unmodulated radio signal, and a receiver for receiving temperature, humidity and/or air pressure information for presenting on the display, the slave unit comprising an energy storage device, a sensor for obtaining temperature, humidity and/or air pressure information, a transmitter for transmitting temperature, humidity and/or air pressure information, and a receiver circuit for receiving the unmodulated radio signal and wherein energy from the unmodulated radio signal is stored in the energy storage device and activates the slave unit.
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4. A device for exchanging data between a master unit and a slave unit,
the master unit comprising an energy source, a display for presenting environmental information, and a first transceiver for transmitting energy and receiving data signals, the slave unit comprising an energy storage device, an sensor for obtaining environmental information, and a second transceiver circuit for receiving energy and transmitting data signals, and wherein energy for operation of the slave unit is transmitted from the master unit to the slave unit and stored in the energy storage device, and environmental information is transmitted from the slave unit to the master unit and presented on the display.
Specification