Method, apparatus, and computer program product for powering electronics in smart covers

• US 9,941,741 B2
• Filed: 03/20/2013
• Issued: 04/10/2018
• Est. Priority Date: 03/20/2013
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Jantunen, Joni, Ollikainen, Jani
• Primary Examiner(s): Tran, Thienvu
• Assistant Examiner(s): Sun, Pinping
• Application Number:
  US13/847,615
• Publication Number:
  US 20140285033A1
• Time in Patent Office: 1,847 Days
• CPC Class Codes: H02J 50/30 using light, e.g. lasers
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04M 1/0283 for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
• CPC Class Codes: H04M 1/7246 by connection of exchangeable housing parts

Abstract

Example method, apparatus, and computer program product embodiments are disclosed for wireless powering of passive objects contained in a functional exchangeable cover of an apparatus. Example embodiments of the invention include a method comprising: receiving, by an apparatus, a signal indicating that a functional exchangeable cover attached to the apparatus requests optical powering, the signal being at least one of a mechanical signal, an electrical signal, or a wireless signal; switching on, by the apparatus, an optical energy source in the apparatus in response to received signal; and transmitting, by the apparatus, from the optical energy source, optical power to the functional exchangeable cover attached to the apparatus.

Claims

1. A method, comprising:

receiving, by a portable wireless device that includes a camera flash that is configured to be operable in association with a camera of the portable wireless device, a signal indicating that a functional exchangeable cover attached to and covering at least a portion of the portable wireless device, requests optical powering, the signal being at least one of a mechanical signal, an electrical signal, or a wireless signal, the portable wireless device including a cellular network interface, the functional exchangeable cover having an optical power receiver aligned with and facing the camera flash of the portable wireless device, when the cover is attached to and covering at least the portion of the portable wireless device, the camera flash configured to transmit energy via an optical signal to the optical power receiver in response to the receiving of the signal indicating that the functional exchangeable cover requests optical powering, to provide operating power to accessory electronic components in the functional exchangeable cover, the accessory electronic components providing accessory functionality embedded in the exchangeable cover when powered;

switching on, by the portable wireless device, the camera flash in the portable wireless device in response to the received signal; and

transmitting, by the portable wireless device, from the camera flash, an optical signal to the optical power receiver of the functional exchangeable cover while attached to and covering at least a portion of the portable wireless device.

2. The method of claim 1, further comprising:

receiving, by the portable wireless device, a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating optical power requirements of the cover; and

transmitting, by the portable wireless device, optical power at a level based on the indicated optical power requirements, in response to the receiving of the radio frequency wireless message.

3. The method of claim 1, further comprising:

receiving, by the portable wireless device, a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating a change in optical power requirements of the cover of the portable wireless device; and

adjusting, by the portable wireless device, the optical power transmitted by the portable wireless device based on the indicated change in optical power requirements, in response to the receiving of the radio frequency wireless message.

4. The method of claim 1, wherein the radio frequency signal comprises a near field communications signal, an RFID signal, or an ultra-wide bandwidth signal.

5. The method of claim 1, further comprising:

transmitting, by the portable wireless device, a radio frequency signal providing initial power to the functional exchangeable cover of the portable wireless device, the signal comprising near field communication signal, in response to the receiving of the signal indicating that the functional exchangeable cover requests optical powering; and

transmitting, by the portable wireless device, optical power to the cover, to supplement the energy provided by the radio frequency signal.

6. The method of claim 1, further comprising:

receiving, by the portable wireless device, a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating no more optical power is required by the cover of the portable wireless device; and

switching off, by the portable wireless device, the camera flash in the portable wireless device in response to the receiving of the radio frequency wireless message.

7. The method of claim 1, further comprising:

wherein optical power receiver in the functional exchangeable cover, is moveable within the functional exchangeable cover so as to be moveable out of alignment with the camera flash of the portable wireless device, while the cover is attached to and covering at least the portion of the portable wireless device;

signaling, by the portable wireless device, that the optical power receiver of the functional exchangeable cover needs to be moved out of alignment with the camera flash to enable the camera flash to be operable for flash photography with the camera of the portable wireless device; and

switching on, by the portable wireless device, the camera flash in the portable wireless device, for flash photography, in response to the optical power receiver having been moved out of alignment with the camera flash.

8. A portable wireless device, comprising:

a camera flash that is configured to be operable in association with a camera of the portable wireless device;

at least one processor;

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

receive a signal indicating that a functional exchangeable cover attached to and covering at least a portion of the portable wireless device, requests optical powering, the signal being at least one of a mechanical signal, an electrical signal, or a wireless signal, the portable wireless device including a cellular network interface, the functional exchangeable cover having an optical power receiver aligned with and facing the camera flash of the portable wireless device, when the cover is attached to and covering at least the portion of the portable wireless device, the camera flash configured to transmit energy via an optical signal to the optical power receiver in response to the receiving of the signal indicating that the functional exchangeable protective cover requests optical powering, to provide operating power to accessory electronic components in the functional exchangeable cover, the accessory electronic components providing accessory functionality embedded in the exchangeable cover when powered;

switch on the camera flash in the portable wireless device in response to the received signal; and

transmit from the camera flash, an optical signal to the optical power receiver of the functional exchangeable cover while attached to and covering at least a portion of the portable wireless device.

9. The portable wireless device of claim 8, further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

receive a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating optical power requirements of the cover; and

transmit optical power at a level based on the indicated optical power requirements, in response to the receiving of the radio frequency wireless message.

10. The portable wireless device of claim 8, further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

receive a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating a change in optical power requirements of the cover of the portable wireless device; and

adjust the optical power transmitted by the portable wireless device based on the indicated change in optical power requirements, in response to the receiving of the radio frequency wireless message.

11. The portable wireless device of claim 8, wherein the radio frequency signal comprises a near field communications signal, an RFID signal, or an ultra-wide bandwidth signal.

12. The portable wireless device of claim 8, further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

transmit a near field communications signal that provides energy to the functional exchangeable cover of the portable wireless device, in response to the receiving of the signal indicating that the functional exchangeable cover requests optical powering; and

transmit optical power to the cover of the portable wireless device, to supplement the energy provided by the near field communications signal.

13. The portable wireless device of claim 8, further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

receive a radio frequency wireless message from the functional exchangeable cover of the portable wireless device, indicating no more optical power is required by the cover of the portable wireless device; and

switch off the camera flash in the portable wireless device, in response to the receiving of the radio frequency wireless message.

14. The portable wireless device of claim 8, further comprising:

wherein optical power receiver in the functional exchangeable cover, is moveable within the functional exchangeable cover so as to be moveable out of alignment with the camera flash of the portable wireless device, while the cover is attached to and covering at least the portion of the portable wireless device;

the at least one memory and the computer program code configured to, with the at least one processor, cause the portable wireless device at least to;

signal, by the portable wireless device, that the optical power receiver of the functional exchangeable cover needs to be moved out of alignment with the camera flash to enable the camera flash to be operable for flash photography with the camera of the portable wireless device; and

switch on, by the portable wireless device, the camera flash in the portable wireless device, for flash photography, in response to the optical power receiver having been moved out of alignment with the camera flash.

15. A computer program product comprising computer executable program code recorded on a computer readable non-transitory storage medium, the computer executable program code comprising:

code for receiving, by a portable wireless device that includes a camera flash that is configured to be operable in association with a camera of the portable wireless device, a signal indicating that a functional exchangeable cover attached to and covering at least a portion of the portable wireless device, requests optical powering, the signal being at least one of a mechanical signal, an electrical signal, or a wireless signal, the portable wireless device including a cellular network interface, the functional exchangeable cover having an optical power receiver aligned with and facing the camera flash of the portable wireless device, when the cover is attached to and covering at least the portion of the portable wireless device, the camera flash configured to transmit energy via an optical signal to the optical power receiver in response to the receiving of the signal indicating that the functional exchangeable cover requests optical powering, to provide operating power to accessory electronic components in the functional exchangeable cover, the accessory electronic components providing accessory functionality embedded in the exchangeable cover when powered;

code for switching on, by the portable wireless device, the camera flash an in the portable wireless device in response to the received signal; and

code for transmitting, by the portable wireless device, from the camera flash, an optical signal to the optical power receiver of the functional exchangeable cover while attached to and covering at least a portion of to the portable wireless device.

16. The computer program product of claim 15, further comprising:

wherein optical power receiver in the functional exchangeable cover, is moveable within the functional exchangeable cover so as to be moveable out of alignment with the camera flash of the portable wireless device, while the cover is attached to and covering at least the portion of the portable wireless device;

code for signaling, by the portable wireless device, that the optical power receiver of the functional exchangeable cover needs to be moved out of alignment with the camera flash to enable the camera flash to be operable for flash photography with the camera of the portable wireless device; and

code for switching on, by the portable wireless device, the camera flash in the portable wireless device, for flash photography, in response to the optical power receiver having been moved out of alignment with the camera flash.