Patent ID: 8126433
Filing Date: 2012-02-28
Classification: H04B

Abstract:
1. An electronic communication device comprising: a RF wireless transmitter circuit that is configured to transmit a block of data to another communication device via RF signals transmitted at a first rate using a first RF communication protocol; a magnetically coupled receiver circuit that is configured to receive a communication control signal from the other communication device via magnetic coupling thereto at a second rate which is less than the first rate, using a second protocol that is different from the first RF communication protocol, and is configured to respond to the communication control signal by selectively triggering the RF wireless transmitter circuit to transmit another block of data when available for transmission; and an inductive charging circuit that is configured to convert magnetic signals received from the other communication device into power, and to supply the power to the RF wireless transmitter circuit, wherein the RF wireless transmitter circuit consumes power at a greater rate when transmitting than what can be generated by the charging circuit from the magnetic signals, and wherein the RF wireless transmitter circuit is further configured to transmit data blocks in RF bursts, wherein a number of data bits in each block varies in response to how much power is supplied by the charging circuit before falling below a threshold level needed to operate the RF wireless transmitter circuit.