Hook switching for telephone based on wireless charging protocol

Patent metadata

Field	Value
Publication number	US-11290586-B2
Application number	US-202016851810-A
Country	US
Kind code	B2
Filing date	Apr 17, 2020
Priority date	Apr 17, 2020
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

First claim

What is claimed is:

1. A method comprising:
obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset;
determining whether the handset identifier matches a stored identifier; and
based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

2. The method of claim 1 , wherein performing the hook switching on behalf of the wireless handset includes:
based on obtaining the handset identifier that matches the stored identifier indicating presence of the wireless handset in a charging position on the telephone base, providing an on-hook status on behalf of the wireless handset.

3. The method of claim 2 , wherein performing the hook switching on behalf of the wireless handset further includes:
upon failure to obtain, for a predetermined time interval, the handset identifier that matches the stored identifier when the wireless handset is in the on-hook status, providing an off-hook status on behalf of the wireless handset.

4. The method of claim 3 , wherein performing the hook switching on behalf of the wireless handset further includes:
based on obtaining the handset identifier that matches the stored identifier, switching the off-hook status to the on-hook status on behalf of the wireless handset.

5. The method of claim 1 , further comprising:
upon the handset identifier obtained from the wireless handset via the power transmitter not matching the stored identifier, charging the wireless handset via the power transmitter without performing the hook switching on behalf of the wireless handset.

6. The method of claim 1 , wherein obtaining the handset identifier includes:
establishing an information communication interface, according to a wireless charging protocol, between the power transmitter and the power receiver during the wireless charging of the wireless handset; and
exchanging signals via the information communication interface.

7. The method of claim 6 , wherein the wireless charging protocol is a Wireless Power Consortium (WPC) Qi protocol.

8. The method of claim 1 , wherein the stored identifier is a unique identifier according to a wireless charging protocol, and the method further includes:
when the handset identifier matches the stored identifier, providing, by the power transmitter to a processor of the telephone base, an on-hook status notification indicating presence of the wireless handset in a charging position on the telephone base, indicative of an on-hook status; and
upon failure to obtain, for a predetermined time interval the handset identifier that matches the stored identifier when the wireless handset is in the on-hook status, providing, by the power transmitter to the processor of the telephone base, an off-hook notification representing absence of the wireless handset in the charging position on the telephone base, indicative of an off-hook status.

9. An apparatus comprising:
a wireless transceiver configured to wirelessly communicate with a wireless handset;
a memory configured to store one or more identifiers;
a charging position on a surface of a housing; and
a power transmitter positioned proximate the charging position, and configured to:
wirelessly provide power to a power receiver of the wireless handset in order to charge a rechargeable battery of the wireless handset when the wireless handset is in the charging position,
obtain, from the power receiver, a handset identifier that uniquely identifies the wireless handset, and
determine whether the handset identifier matches one of the one or more identifiers stored in the memory; and

a processor coupled to the power transmitter and configured to perform hook switching on behalf of the wireless handset based, in part, on the power transmitter indicating that the handset identifier matches one of the one or more identifiers stored in the memory.

10. The apparatus of claim 9 , wherein the processor is configured to perform the hook switching on behalf of the wireless handset by:
based on obtaining the handset identifier that matches the one of the one or more identifiers stored in the memory, indicating presence of the wireless handset in the charging position, providing an on-hook status on behalf of the wireless handset.

11. The apparatus of claim 10 , wherein the processor is further configured to perform the hook switching on behalf of the wireless handset by:
upon failure to obtain, for a predetermined time interval, the handset identifier that matches the one of the one or more identifiers stored in the memory when the wireless handset is in the on-hook status, providing an off-hook status on behalf of the wireless handset.

12. The apparatus of claim 11 , wherein the processor is further configured to perform the hook switching on behalf of the wireless handset by:
based on obtaining the handset identifier that matches the one of the one or more identifiers stored in the memory, switching the off-hook status to the on-hook status on behalf of the wireless handset.

13. The apparatus of claim 9 , wherein the processor is further configured to perform, upon the handset identifier obtained from the wireless handset via the power transmitter not matching the one of the one or more identifiers stored in the memory, charging the wireless handset via the power transmitter without performing the hook switching on behalf of the wireless handset.

14. The apparatus of claim 9 , wherein the power transmitter is configured to obtain the handset identifier by:
establishing an information communication interface, according to a wireless charging protocol, with the power receiver during charging of the rechargeable battery; and
exchanging signals with the power receiver via the information communication interface,
wherein the wireless charging protocol is a Wireless Power Consortium (WPC) Qi protocol.

15. A telephone comprising:
a wireless handset that includes:
a handset wireless transceiver,
a rechargeable battery, and
a power receiver configured to charge the rechargeable battery; and

a telephone base that includes:
a base wireless transceiver configured to wirelessly communicate with the handset wireless transceiver,
a memory configured to store one or more identifiers,
a charging position on a surface of a housing,
a power transmitter positioned proximate the charging position, and configured to:
wirelessly provide power to the power receiver in order to charge the rechargeable battery when the wireless handset is in the charging position,
obtain, from the power receiver, a handset identifier that uniquely identifies the wireless handset, and
determine whether the handset identifier matches one of the one or more identifiers stored in the memory, and

a processor coupled to the power transmitter and configured to perform hook switching on behalf of the wireless handset based, in part, on the power transmitter indicating that the handset identifier matches one of the one or more identifiers stored in the memory.

16. The telephone of claim 15 , wherein the processor is configured to perform the hook switching on behalf of the wireless handset by:
based on the power transmitter obtaining the handset identifier that matches the one of the one or more identifiers stored in the memory, indicating presence of the wireless handset in the charging position, providing an on-hook status on behalf of the wireless hands

Assignees

• Cisco Tech Inc

Inventors

• Lin Yikai
• Li Zhaozhuo
• Jiang Jianhua

Classifications

• H02J2105/44

  Portable electronic devices · CPC title

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J7/47

  Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source · CPC title

• H04M1/06

  Hooks; Cradles · CPC title

• H04M1/10 Primary

  associated with switches operated by magnetic effect due to proximity of receiver or hand-set · CPC title