ERROR CORRECTION SCHEME IN A HEARING SYSTEM WIRELESS NETWORK

• US 20100157790A1
• Filed: 01/13/2009
• Published: 06/24/2010
• Est. Priority Date: 12/22/2008
• Status: Active Grant

• Current Assignee: GN Resound A/S (GN Store Nord A/S)
• Original Assignee: GN Resound A/S (GN Store Nord A/S)
• Inventors: Pedersen, Brian Dam
• Granted Patent: US 8,265,099 B2
• Time in Patent Office: Days
• US Class Current: 370/216
• CPC Class Codes: H04L 1/004 by using forward error control H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00
• CPC Class Codes: H04L 1/008 where the control data relates to payload of a different packet
• CPC Class Codes: H04R 2225/55 Communication between hearing aids and external devices via a network for data exchange
• CPC Class Codes: H04R 25/552 Binaural
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils
• CPC Class Codes: H04R 25/558 Remote control, e.g. of amplification, frequency
• CPC Class Codes: H04R 25/70 Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Abstract

A method of wireless data communication between a hearing instrument and another device, includes receiving N data packages A₁, A₂, . . . , A_N, wherein the N data packages are obtained by dividing a data package D, receiving data package C, wherein the data package C is formed as a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N), performing error detection, and recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

Claims

1. A method of wireless data communication between a hearing instrument and another device, comprising:

dividing a data package D into N data packages A₁, A₂, . . . , A_N;

forming a data package C as a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N);

wirelessly transmitting the data packages A₁, A₂, . . . , A_N; and

wirelessly transmitting the data package C;

wherein the data package C is for recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

2. The method according to claim 1, wherein the act of wirelessly transmitting the data package C is performed in response to a detection of the error.

3. The method according to claim 1, wherein the function F and the function R are identical.

4. The method according to claim 3, wherein the function F is an exclusive-or function so that

C=A₁⊕

A₂⊕

. . . ⊕

A_N

and

A_E=A₁⊕

A₂⊕

. . . ⊕

C⊕

. . . ⊕

A_N.

5. The method according to claim 4, wherein N is equal to 2 so that

C=A₁⊕

A₂

and

A₁=C⊕

A₂ and A₂=A₁⊕

C.

6. The method according to claim 1, wherein at least some of the packages A_i, C are wirelessly transmitted in respective different frequency channels.

7. A system for wireless data communication between a hearing instrument and another device, comprising:

means for dividing a data package D into N data packages A₁, A₂, . . . , A_N;

means for forming a data package C as a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N); and

means for wirelessly transmitting the data packages A₁, A₂, . . . , A_N, and for wirelessly transmitting the data package C;

wherein the data package C is for recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

8. A method of wireless data communication between a hearing instrument and another device, comprising:

receiving N data packages A₁, A₂, . . . , A_N, wherein the N data packages are obtained by dividing a data package D;

receiving data package C, wherein the data package C is formed as a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N);

performing error detection; and

recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

9. The method according to claim 8, wherein the act of receiving the data package C is performed in response to a detection of the error.

10. The method according to claim 8, wherein the function F and the function R are identical.

11. The method according to claim 10, wherein the function F is an exclusive-or function so that

C=A₁⊕

A₂⊕

. . . ⊕

A_N

and

A_E=A₁⊕

A₂⊕

. . . ⊕

C⊕

. . . ⊕

A_N.

12. The method according to claim 11, wherein N is equal to 2 so that

C=A₁⊕

A₂

and

A₁=C⊕

A₂ and A₂=A₁⊕

C.

13. The method according to claim 8, wherein at least some of the packages A_i, C are received in respective different frequency channels.

14. A system for wireless data communication between a hearing instrument and another device, comprising:

means for receiving N data packages A₁, A₂, . . . , A_N, and data package C, wherein the N data packages are obtained by dividing a data package D, and wherein the data package C is formed as a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N);

means for performing error detection; and

means for recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

15. A hearing system comprising:

a hearing instrument having

a receiver for wireless data communication with another device in a wireless network, and

a communication controller that is configured for controlling the wireless data communication;

wherein the other device is configured for transmission of data packages A₁, A₂, . . . , A_N, C, the data package C being a function of A₁, A₂, . . . , A_N in accordance with a relationship C=F (A₁, A₂, . . . , A_N); and

wherein the communication controller is configured for controlling the receiver for;

receiving the data packages A₁, A₂, . . . , A_N, and C,

performing error detection, and

recovering A_E, one of the data packages A₁, A₂, . . . , A_N that contains an error, in accordance with a relationship A_E=R(A₁, A₂, . . . , C, . . . , A_N), in which A₁, A₂, . . . , C, . . . , A_N indicates that the data package C is used in place of A_E in a list of arguments for the function R.

16. The hearing system according to claim 15, wherein the communication controller is configured for controlling the receiver for receiving the data package C in response to a detection of the error.

17. The hearing system according to claim 15, wherein the function F and the function R are identical.

18. The hearing system according to claim 17, wherein the function F is an exclusive-or function so that

C=A₁⊕

A₂⊕

. . . ⊕

A_N

and

A_E=A₁⊕

A₂⊕

. . . ⊕

C⊕

. . . ⊕

A_N.

19. The hearing system according to claim 18, wherein N is equal to 2 so that

C=A₁⊕

A₂

and

A₁=C⊕

A₂ and A₂=A₁⊕

C.

20. The hearing system according to claim 15, wherein the other device is configured for transmission of at least some of the data packages A_i, C in respective different frequency channels.

21. The hearing system according to claim 15, wherein the other device is configured for data transmission in accordance with a frequency hopping scheme, in which subsequent to the transmission of one data package A_P of the data packages A₁, A₂, . . . , A_N, a frequency hop is performed before the transmission of the next data package A_P+1 of the data packages A₁, A₂, . . . , A_N, so that each of the data packages A₁, A₂, . . . , A_N is transmitted in an individual frequency channel.

22. The hearing system according to claim 15, wherein the hearing instrument further comprises a transmitter, and wherein the communication controller is further configured for controlling the transmitter to transmit data packages A₁′

, A₂′

. . . , A_N′

, C′

, wherein the data package C′

is a function of A₁′

, A₂′

, . . . , A_N′

in accordance with a relationship C′

=F (A₁′

, A₂′

, . . . , A_N′

).