Methods and systems for establishing an encrypted-audio session

• US 9,900,769 B2
• Filed: 05/29/2015
• Issued: 02/20/2018
• 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, Peter
• Application Number:
  US14/726,102
• Publication Number:
  US 20160353276A1
• Time in Patent Office: 998 Days
• 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

An embodiment takes the form of a method carried out by a personal mobile device. The personal mobile device receives a session-request message requesting establishment an encrypted-audio session with a call-initiating device, responsively presents one or more call-response inquiries via a user interface, and subsequently receives an accessory-unready indication via the user interface. The one or more call-response inquiries include an accessory-status inquiry, and the accessory-unready indication is associated with the presented accessory-status inquiry. In response to receiving the accessory-unready indication, the personal mobile device sends, to the call-initiating device, a request-acknowledgment message that is associated with the session-request message. Subsequent to sending the request-acknowledgment message but before establishing the encrypted-audio session, the personal mobile device makes an accessory-ready determination. In response to making the accessory-ready determination, the personal mobile device establishes the encrypted-audio session.

Claims

1. A method carried out by a personal mobile device having a user interface, the method comprising:

receiving 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 one or more call-response inquiries via the user interface, the one or more call-response inquiries comprising an accessory-status inquiry with respect to an accessory to the personal mobile device, in addition to a call-accept inquiry and a call-reject inquiry;

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

in response to receiving the accessory-unready indication, sending a request-acknowledgment message to the call-initiating device, the request-acknowledgment message being associated with the session-request message;

making an accessory-ready determination with respect to the accessory, wherein the encrypted-audio session is thereafter established; and

during the encrypted-audio session, receiving encrypted-audio data from the accessory and forwarding that encrypted-audio data to the call-initiating device.

2. The method of claim 1, wherein making the accessory-ready determination comprises receiving an accessory-ready indication with respect to the accessory via the user interface.

3. The method of claim 1, wherein making the accessory-ready determination comprises determining that a communication link is established between the accessory and the personal mobile device.

4. The method of claim 3, wherein making the accessory-ready determination further comprises receiving an accessory-ready indication with respect to the accessory via the established communication link.

5. The method of claim 1, wherein making the accessory-ready determination comprises receiving an accessory-ready indication with respect to the accessory via an accessory user interface of the accessory.

6. The method of claim 5, wherein the accessory user interface comprises a touch display, wherein receiving the accessory-ready indication via the accessory user interface comprises receiving the accessory-ready indication via the touch display of the accessory user interface.

7. The method of claim 5, wherein the accessory user interface comprises a push button, wherein receiving the accessory-ready indication via the accessory user interface comprises receiving the accessory-ready indication via the push button of the accessory user interface.

8. The method of claim 1 further comprising:

receiving a call-accept indication via the user interface, the call-accept indication being associated with the presented call-accept inquiry, and

in response to receiving the call-accept accept indication, establishing the encrypted-audio session.

9. The method of claim 1, further comprising establishing the encrypted-audio session in response to making the accessory-ready determination.

10. A system personal mobile device comprising:

memory,

a communication interface configured to receive a session-request message to establish an encrypted-audio session with a call-initiating device;

a user interface configured to;

present, in response to the communication interface receiving the session-request message, one or more call-response inquiries, the one or more call-response inquiries comprising an accessory-status inquiry with respect to an accessory to the personal mobile device; and

receive an accessory-unready indication with respect to the accessory, the accessory-unready indication being that is associated with the presented accessory-status inquiry, in addition to a call-accept inquiry and a call-reject inquiry,

wherein the communication interface is further configured to provide, in response to the user interface receiving the accessory-unready indication, a request acknowledgment message to the call-initiating device, the request-acknowledgment message being associated with the session-request message; and

a processor configured to;

make an accessory-ready determination with respect to the accessory, wherein the encrypted-audio session is thereafter established; and

receive, via the communication interface, encrypted-audio data from the accessory during the encrypted-audio session and forward, via the communication interface, that encrypted-audio data to the call-initiating device.

11. The personal mobile device of claim 10, wherein the processor is further configured to make the accessory-ready determination at least in part by receiving an accessory-ready indication with respect to the accessory via the user interface.

12. The personal mobile device of claim 10, wherein the processor is further configured to make the accessory-ready determination at least in part by determining that a communication link is established between the accessory and the personal mobile device.

13. The personal mobile device of claim 12, wherein the processor is further configured to make the accessory-ready determination by receiving an accessory-ready indication with respect to the accessory via the established communication link.

14. The personal mobile device of claim 13, wherein the accessory-ready indication is received via an accessory user interface of the accessory.

15. The personal mobile device of claim 14, wherein the accessory user interface comprises inputs used to determine the accessory-ready indication, the inputs being selected from the group consisting of a touch display and a push button.

16. The personal mobile device of claim 10, wherein the processor is further configured to establish the encrypted-audio session in response to making the accessory-ready determination.