Claims
- 1. An interface between a mobile terminal and an accessory equipment comprising:a sensory device connected to an output port of said mobile terminal for monitoring a logic level of said output port; and means for switching an input port of said interface from a digital configuration to an analog configuration in response to said monitored logic level remaining at a substantially constant value for a predetermined time threshold.
- 2. The interface of claim 1, wherein said constant value is a logical low level.
- 3. The interface of claim 1, wherein said interface comprises:a first port coupled to an analog output circuit; and a second port coupled to a digital output circuit and said sensory device.
- 4. The interface of claim 3, wherein an analog device is coupled to said first and second port during said analog configuration and wherein a digital device is coupled to said first and second port during said digital configuration.
- 5. A method for switching an electronic device from a digital mode to an analog mode comprising:monitoring a logic level of an output port of said electronic device; switching an input port of an interface of said electronic device from a digital configuration to an analog configuration in response to said monitored logic level remaining at a substantially constant value for a predetermined time threshold.
- 6. The method of claim 5, wherein said constant value is a logical low level.
- 7. The method of claim 5, wherein said monitoring is performed by a sensory device, wherein said interface comprises a first port coupled to an analog output circuit and a second port coupled to a digital output circuit and said sensory device, and wherein said monitored logic level remains at a substantially constant value for a predetermined time threshold in response to a coupling of an analog device to said first and second port during said analog configuration.
- 8. The method of claim 7, wherein said monitored logic level does not remain at said substantially constant value for said predetermined time threshold when a digital device is coupled to said first and second port.
- 9. An interface between a mobile terminal and an accessory equipment comprising:a sensory device connected to an output port of said mobile terminal for monitoring a logic level of said output port; and means for switching an input port of said interface from a digital configuration to an analog configuration in response to said monitored logic level remaining at a substantially constant value for a time exceeding a maximum logic time duration for said digital configuration.
- 10. A method for switching an electronic device from a digital mode to an analog mode comprising:monitoring a logic level of an output port of said electronic device; and switching an input port of an interface of said electronic device from a digital configuration to an analog configuration in response to said monitored logic level remaining at a substantially constant value for a time exceeding a maximum logic time duration for said digital configuration.
CROSS-REFERENCE TO PRIOR APPLICATION
This application claims priority from U.S. Provisional Application Ser. No. 60/117,502 filed on Jan. 27, 1999, the disclosure of which is incorporated here by reference.
US Referenced Citations (6)
Foreign Referenced Citations (3)
Number |
Date |
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WO9621988 |
Jul 1996 |
WO |
WO9733384 |
Sep 1997 |
WO |
WO9903294 |
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/117502 |
Jan 1999 |
US |