Methods and systems for establishing an encrypted-audio session

• US 10,251,055 B2
• Filed: 02/06/2018
• Issued: 04/02/2019
• Est. Priority Date: 05/29/2015
• Status: Active Grant

• Current Assignee: Nagravision SA (Kudelski SA)
• Original Assignee: Nagravision SA (Kudelski SA)
• Inventors: Wendling, Bertrand
• Primary Examiner(s): Poltorak, Piotr
• Application Number:
  US15/890,305
• Publication Number:
  US 20180160302A1
• Time in Patent Office: 420 Days
• Field of Search: None
• CPC Class Codes: H04B 1/3827 Portable transceivers
• CPC Class Codes: H04K 1/00 Secret communication
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 67/00 Network arrangements or protocols for supporting network services or applications user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/4367 Establishing a secure communication between the client and a peripheral device or smart card
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

A personal mobile device receives a session-request message requesting establishment an encrypted-audio session with a call-initiating device. In response, one or more call-response inquiries are presented via a user interface of the mobile device. The one or more call-response inquiries include an accessory-status inquiry with respect to an accessory to the mobile device. The mobile device receives, via the user interface, an accessory-unready indication with respect to the accessory, which is associated with the presented accessory-status inquiry. In response to receiving the accessory-unready indication, the mobile device establishes a communication link with the call-initiating device and refrains from exchanging audio data with the call-initiating device via the established communication link. The mobile device makes an accessory-ready determination and responsively establishes the encrypted-audio session at least in part by receiving encrypted-audio data from the accessory and forwarding, via the established communication link, the encrypted-audio data to the call-initiating device.

Claims

1. A method. comprising:

receiving, at a personal mobile device, a session-request message requesting establishment of an encrypted-audio session with a call-initiating device;

in response to receiving the session-request message, presenting via a user interface of the personal mobile device, one or more call-response inquiries, the one or more call-response inquiries including an accessory-status inquiry with respect to an accessory to the personal mobile device;

receiving, at the personal mobile device via the user interface, an accessory-unready indication with respect to the accessory, the accessory-unready indication being associated with the presented accessory-status inquiry;

in response to receiving the accessory-unready indication, the personal mobile device establishing a communication link with the call-initiating device and refraining from exchanging audio data with the call-initiating device via the established communication link; and

making, at the personal mobile device, an accessory-ready determination with respect to the accessory, and responsively establishing the encrypted-audio session at least in part by receiving encrypted-audio data from the accessory and forwarding, via the established communication link, the encrypted-audio data to the call-initiating device.

2. The method of claim 1, wherein establishing the communication link with the call-initiating device includes establishing a media session with the call-initiating device.

3. The method of claim 1, wherein making the accessory-ready determination with respect to the accessory includes receiving an accessory-ready indication.

4. The method of claim 3, wherein the accessory-ready indication is received via the user interface.

5. The method of claim 3, wherein the accessory-ready indication is received from the accessory.

6. The method of claim 5, wherein the accessory-ready indication is a message indicative of a successful establishment of a connection between the accessory and the personal mobile device.

7. The method of claim 1, wherein making the accessory-ready determination with respect to the accessory includes determining a wireless communication link is established between the accessory and the personal mobile device.

8. The method of claim 1, further comprising, after receiving the accessory-unready indication, presenting, at the personal mobile device via the user interface, a follow-up accessory-status inquiry.

9. The method of claim 1, further comprising sending, in response to receiving the accessory-unready indication, a request-acknowledgment message to the call-initiating device.

10. The method of claim 1, wherein receiving the encrypted-audio data from the accessory includes receiving the encrypted-audio data from the accessory via a wireless communication link between the accessory and the personal mobile device.

11. A communication device comprising:

a user interface;

a communication interface;

a processor; and

a non-transitory computer-readable medium having instructions stored thereon that when executed by the processor cause the communication device to;

receive, via the communication interface, a session-request message requesting establishment of an encrypted-audio session with a call-initiating device;

in response to receiving the session-request message, present via the user interface, one or more call-response inquiries, the one or more call-response inquiries including an accessory-status inquiry with respect to an accessory to the communication device;

receive, via the user interface, an accessory-unready indication with respect to the accessory, the accessory-unready indication being associated with the presented accessory-status inquiry;

in response to receiving the accessory-unready indication, establish a communication link with the call-initiating device and refrain from exchanging audio data with the call-initiating device via the established communication link; and

make an accessory-ready determination with respect to the accessory, and responsively establish the encrypted-audio session at least in part by receiving encrypted-audio data from the accessory and forwarding, via the established communication link, the encrypted-audio data to the call-initiating device.

12. The communication device of claim 11, wherein establishing the communication link with the call-initiating device includes establishing a media session with the call-initiating device.

13. The communication device of claim 11, wherein making the accessory-ready determination with respect to the accessory includes receiving an accessory-ready indication.

14. The communication device of claim 12, wherein the accessory-ready indication is received via the user interface.

15. The communication device of claim 12, wherein the accessory-ready indication is received from the accessory.

16. The communication device of claim 15, wherein the accessory-ready indication is a message indicative of a successful establishment of a connection between the accessory and the personal mobile device.

17. The communication device of claim 11, wherein making the accessory-ready determination with respect to the accessory includes determining a wireless communication link is established between the accessory and the communication device.

18. The communication device of claim 11, the instructions further causing the communication device to, after receiving the accessory-unready indication, present, via the user interface, a follow-up accessory-status inquiry.

19. The communication device of claim 11, the instructions further causing the communication device to send, in response to receiving the accessory-unready indication, a request-acknowledgment message to the call-initiating device.

20. The communication device of claim 11, wherein receiving the encrypted-audio data from the accessory includes receiving the encrypted-audio data from the accessory via a wireless communication link between the accessory and the communication device.