Performing diagnostics in a wireless system

• US 8,538,417 B2
• Filed: 04/24/2012
• Issued: 09/17/2013
• Est. Priority Date: 06/14/2005
• Status: Expired due to Fees

• Current Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Original Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Inventors: Anderton, David O.
• Primary Examiner(s): Doan, Kiet
• Assistant Examiner(s): NGUYEN, KHAI MINH
• Application Number:
  US13/454,907
• Publication Number:
  US 20120208531A1
• Time in Patent Office: 511 Days
• Field of Search: 455/423, 455/425, 455/67.11, 455/115.1, 455/115.4, 455/226.1, 455/550.1, 455/557
• US Class Current: 455/423
• CPC Class Codes: H04M 1/24 Arrangements for testing
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

In one embodiment, the present invention includes an apparatus for permitting diagnostic testing of a wireless device. The apparatus may include a first switch to route diagnostic information or acoustic information received from a processor of the device, a codec coupled to the first switch to code the routed diagnostic information or acoustic information, and a second switch coupled to the codec to route the coded diagnostic information to a first port of the wireless device and to route the coded acoustic information to the first port or a second port of the wireless device.

Claims

1. A mobile device comprising:

a digital signal processor (DSP) adapted to process audio communications, adapted to perform a diagnostic routine to generate diagnostic information and adapted to process the diagnostic information into a modulated audio signal comprising the diagnostic information, the DSP having a port adapted to selectively output the processed audio communications or the modulated audio signal;

an internal/external switch comprising an internal/external switch input coupled to the port and adapted to selectively connect the port to an internal audio port and an external audio port, the external audio port being adapted to communicate the modulated audio signal between the DSP and a data collector during the diagnostic routine and wherein during the diagnostic routine real audio capability of the external audio port is disabled.

2. The mobile device of claim 1, wherein the DSP comprises a soft modem adapted to process the diagnostic information into the modulated audio signal.

3. The mobile device of claim 1, wherein the DSP further comprises a soft switch adapted to selectively provide the processed audio communications or the modulated audio signal to the port.

4. The mobile device of claim 1, further comprising a codec coupled between the port and the internal/external switch input.

5. The mobile device of claim 1, wherein a single integrated circuit comprises a microcontroller unit (MCU), the DSP and the internal/external switch.

6. A mobile device comprising:

an integrated circuit, the integrated circuit comprising;

a digital signal processor (DSP) adapted to process audio communications, adapted to perform a diagnostic routine to generate diagnostic information and adapted to process the diagnostic information into a modulated audio signal comprising the diagnostic information, the DSP having a port adapted to selectively output the processed audio communications or the modulated audio signal;

an internal/external switch comprising an internal/external switch input coupled to the port and adapted to selectively connect the port to an internal audio port and an external audio port, the external audio port being adapted to communicate the modulated audio signal between the DSP and a data collector during the diagnostic routine and wherein during the diagnostic routine real audio capability of the external audio port is disabled.

7. The mobile device of claim 6, wherein the DSP comprises a soft modem adapted to process the diagnostic information into the modulated audio signal.

8. The mobile device of claim 6, wherein the DSP further comprises a soft switch adapted to selectively provide the processed audio communications or the modulated audio signal to the port.

9. The mobile device of claim 6, further comprising a codec coupled between the port and the internal/external switch input.

10. A mobile device comprising:

a digital signal processor (DSP) adapted to processes acoustic information and being further adapted to perform a diagnostic routine to generate diagnostic information for use in diagnostic testing of the mobile device, the DSP comprising a data port for providing processed acoustic information and a diagnostic port for providing the diagnostic information;

a modem block connected to the diagnostic port, the modem block being adapted to modulate the diagnostic information into modulated diagnostic information; and

a first switch coupled to selectively provide a path to the diagnostic port or the data port;

an internal audio port selectively coupled to the first switch to communicate audio data with the DSP;

an external audio port selectively coupled to the first switch to communicate diagnostic information between the DSP and a data collector during the diagnostic routine and wherein during the diagnostic routine an audio path is forced through the external audio port such that real audio capability of the external audio port is disabled;

a second switch selectively coupled between the first switch and the external audio port to provide a path between the diagnostic port and the data collector during the diagnostic procedure.

11. The mobile device of claim 10, wherein the DSP, further comprises the modem block.

12. The mobile device of claim 11, wherein the modem block is a soft modem block.

13. The mobile device of claim 10, further comprising a codec block connected between the first switch and the second switch, the codec being adapted to code the modulated diagnostic information or code the processed acoustic information.

14. The mobile device of claim 10, wherein a single integrated circuit comprises a microcontroller unit (MCU), the DSP, and the first switch.