Browse Prior Art Database

Audioshoe, CS 44 Programming and Battery Charging Features Implemented Using Four Electrical Input Contacts

IP.com Disclosure Number: IPCOM000200560D
Original Publication Date: 2010-Oct-19
Included in the Prior Art Database: 2010-Oct-19
Document File: 2 page(s) / 194K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Modern behind the ear (BTE) hearing aids are able to differentiate between multiple input dependent modes. Such modes can be, for example, the so called audio mode, the programming mode and the charging mode. Current implementations use distinguished pins to enable different input dependent modes. Direct audio input for example, is implemented using four contact pins near the battery compartment. The input audio signal is connected to the hearing instrument using a so called audio shoe. State of the art BTE hearing aids can additionally be programmed using a so called programming pill. This connection device is used to contact programming pins often housed in the battery compartment of the hearing instrument while the batteries contact pins of the hearing aid are also utilized for programming purposes. However, further programming methods for hearing aids are known which utilize a standardized four pin CS44 programming socket or wireless technologies. To recharge the battery of a hearing aid, two exposed pins on the instruments surface are required. These are often in contact with the user's skin, which is not desired.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

Page 01 of 2

(This page contains 01 pictures or other non-text object)

(This page contains 00 pictures or other non-text object)

Audioshoe, CS 44 Programming and Battery Charging Features Implemented Using Four Electrical Input Contacts

Idea: Aun Yong Hong, SG-Singapore; Mui Mui Goh, SG-Singapore; Meng Kiang Lim, SG-Singapore

Modern behind the ear (BTE) hearing aids are able to differentiate between multiple input dependent modes. Such modes can be, for example, the so called audio mode, the programming mode and the charging mode. Current implementations use distinguished pins to enable different input dependent modes. Direct audio input for example, is implemented using four contact pins near the battery compartment. The input audio signal is connected to the hearing instrument using a so called audio shoe.

State of the art BTE hearing aids can additionally be programmed using a so called programming pill. This connection device is used to contact programming pins often housed in the battery compartment of the hearing instrument while the batteries contact pins of the hearing aid are also utilized for programming purposes. However, further programming methods for hearing aids are known which utilize a standardized four pin CS44 programming socket or wireless technologies. To recharge the battery of a hearing aid, two exposed pins on the instruments surface are required. These are often in contact with the user's skin, which is not desired.

Exemplary summarizing the mentioned contact pins for a hearing instrument, it can be concluded that three programming contacts (nClock, nData, Gnd), four audio shoe contacts (Audio signal, Gnd, Vcc, Audio_sense) and two charging contacts (Gnd, Vcc) are needed. By combining the input signals for these three exemplary features, a minimum of six contact pins is required.

In the following a novel connection interface and method for hearing aids is proposed, which enables a logic module in the hearing instrument to differentiate between multiple input dependent modes using a minimum of four input contacts. Figure 1 depicts an exemplary connection scheme using the proposed four contact pins and a multiplexer to detect and operate the hearing aid in programming mode, direct audio mode and charging mode. In the depicted embodiment of the proposed method a multiplexing device is used as a logic module controlling a relay, which does the necessary switching between the input contacts. In the following the switching between the input dependent modes will be explained in detail, using the setup presented in Figure 1:

• When there is no external input signal, the four input pads are configured to be Gnd, nData, nClock and Audio_sense/Multiplex signal respectively.

• When a pr...