Power and data transmission system and method

• US 10,461,807 B2
• Filed: 03/17/2015
• Issued: 10/29/2019
• Est. Priority Date: 04/14/2014
• Status: Active Grant

• Current Assignee: Philip Morris Products SA (Philip Morris Limited)
• Original Assignee: Philip Morris Products SA (Philip Morris Limited)
• Inventors: Bernauer, Dominique, Fernando, Felix
• Primary Examiner(s): La, Phong
• Application Number:
  US15/303,136
• Publication Number:
  US 20170033836A1
• Time in Patent Office: 1,687 Days
• Field of Search: 370498
• CPC Class Codes: A24F 40/20 Devices using solid inhalable precursors
• CPC Class Codes: A24F 40/40 Constructional details, e.g. connection of cartridges and battery parts
• CPC Class Codes: A24F 40/95 structurally associated with cases
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H05B 1/0244 Heating of fluids H05B1/0247 takes precedence
• CPC Class Codes: H05B 2203/021 Heaters specially adapted for heating liquids

Abstract

There is provided a system for transmitting power and data from a host device to a receiver device over an electrical connection, including a host device configured to transmit power and data through an output, and configured to transmit the power through the output at different times to the data; a receiver device having an input connectable to the output of the host device, the receiver device including a power receiving circuit, a data receiving circuit, and a switch element configured to connect the input to the power receiving circuit or the data receiving circuit dependent on a voltage of a signal received from the input. There is also provided a receiver device for receiving power and data from the host device.

Claims

1. A handheld, battery powered, electrically operated aerosol-generating device, comprising:

an input comprising a single pair of electrical contacts connectable to a host device to receive a time-multiplexed signal from the host device, the time-multiplexed signal comprising power and data time-multiplexed with one another and solely being received by the single pair of electrical contacts;

a power receiving circuit;

a data receiving circuit; and

a switch element configured to automatically and sequentially provide the time-multiplexed signal received at the input to the power receiving circuit such that the power receiving circuit receives the power in the time-multiplexed signal and to the data receiving circuit such that the data receiving circuit receives the data in the time-multiplexed signal, dependent on a voltage of the time-multiplexed signal.

2. The electrically operated aerosol-generating device according to claim 1, wherein the switch element is further configured to switch from a first state to a second state when the voltage of the time-multiplexed signal is above a first voltage threshold.

3. The electrically operated aerosol-generating device according to claim 2, wherein the switch element is further configured to switch from the second state to the first state when the voltage of the time-multiplexed signal is below a second voltage threshold.

4. The electrically operated aerosol-generating device according to claim 3, wherein the second voltage threshold is lower than the first voltage threshold.

5. The electrically operated aerosol-generating device according to claim 3, wherein the second state is a connection to the power receiving circuit.

6. The electrically operated aerosol-generating device according to claim 2, wherein the first state is a connection to the data receiving circuit.

7. The electrically operated aerosol-generating device according to claim 2, wherein the first state is a disconnection from the power receiving circuit.

8. The electrically operated aerosol-generating device according to claim 2, wherein the first voltage threshold is between 1 Volt and 30 Volts.

9. A system, comprising:

a host device comprising an output and configured to transmit through the output a time-multiplexed signal comprising power and time-multiplexed with one another; and

an electrically operated aerosol-generating device, comprising;

an input connectable to receive the time-multiplexed signal from the output of the host device solely via a single pair of electrical contacts;

a power receiving circuit;

a data receiving circuit; and

a switch element configured to automatically and sequentially provide the time-multiplexed signal to the power receiving circuit such that the power receiving circuit receives the power in the time-multiplexed signal and to the data receiving circuit such that the data receiving circuit receives the data in the time-multiplexed signal, dependent on a voltage of the time-multiplexed signal.

10. The system according to claim 9, wherein the switch element is further configured to switch from a first state to a second state when the voltage of the time-multiplexed signal is above a first voltage threshold.

11. The system according to claim 10, wherein the switch element is further configured to switch from the second state to the first state when the voltage of the time-multiplexed signal is below a second voltage threshold.

12. The system according to claim 11, wherein the second voltage threshold is lower than the first voltage threshold.

13. The system according to claim 11, wherein the second state is a connection to the power receiving circuit.

14. The system according to claim 11, wherein the data receiving circuit is configured to determine logic levels in the data by comparing the voltage of the time-multiplexed signal with a third threshold voltage.

15. The system according to claim 10, wherein the first state is a connection to the data receiving circuit.

16. The system according to claim 10, wherein the first state is a disconnection from the power receiving circuit.

17. The system according to claim 10, wherein the first voltage threshold is between 1 Volt and 30 Volts.

18. The system according to claim 9, wherein the host device comprises a battery charging device.

19. A method, comprising:

receiving a time-multiplexed signal comprising power and data time-multiplexed with one another from a host device solely at a single pair of electrical contacts of an electrically operated aerosol-generating device having a power receiving circuit and a data receiving circuit;

performing, by the device, a comparison of a voltage of the time-multiplexed signal with a threshold voltage; and

sequentially providing the time-multiplexed signal to the power receiving circuit and to the data receiving circuit dependent on a result of the comparison.

20. The method according to claim 19, wherein the performing the comparison is performed continuously while the time-multiplexed signal is being received at the single pair of electrical contacts.