Interface system for an accessory and communication device

• US 7,526,317 B2
• Filed: 10/06/2006
• Issued: 04/28/2009
• Est. Priority Date: 09/23/2003
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Higgins, Robert J., Pinder, Ellis A.
• Primary Examiner(s): Tran; Tuan A
• Application Number:
  US11/539,453
• Publication Number:
  US 20070127397A1
• Time in Patent Office: 935 Days
• Field of Search: 4505561- 2, 450557-559, 450 901- 2, 450418-420, 450 68- 69, 710 1- 19, 710 72- 74, 710 62- 63, 710/104, 710/305, 710/308, 710/309, 710313-315, 713/1, 713/2, 713/100, 713/190
• US Class Current: 455/557
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60

Abstract

A configurable interface system (100) couples an accessory (102) to a communication device (104). The interface system utilizes a memory device (120) embedded in the accessory (102) that stores physical configuration and event mapping descriptors (114, 122) pertaining to the accessory. The communication device (104) reads the physical configuration and event mapping descriptors and configures its external interface (112) in response thereto, preferably through the use of bi-directional GPIO lines (110).

Claims

1. A radio architecture for interfacing with an accessory, the radio architecture including:

an accessory interface manager for receiving event mapping descriptors and physical configuration descriptors from the accessory;

an accessory interface driver coupled to the accessory interface manager.

2. The radio architecture of claim 1, wherein the physical configuration descriptors contain data direction and logic sense.

3. The radio architecture of claim 1, wherein the event mapping descriptors contain event identifier, control type, and GPIO number.

4. The radio architecture as described in claim 3, wherein the event identifier specifies an event code in the radio which is an indication event.

5. The radio architecture as described in claim 4, wherein the event identifier specifies an event code in the radio which is a user input event.

6. The interface system as described in claim 5, wherein the indication events and user input events are subdivided into logical and physical events yielding:

physical input event, logical input event, physical output event, and logical output event.

7. The radio architecture of claim 6, wherein the physical input event is assigned to a single GPIO pin configured as an input thereby providing an external means to activate a physical radio button.

8. The radio architecture of claim 6, wherein the physical output event is created when a logical event, created by an ergonomic manager and application field, is sent to a user interface task which then translates a logical indicator into a physical indicator using a translation table.

9. The radio architecture as described in claim 1, wherein at least two logical events are set up in the event mapping descriptor using an OR relationship.

10. The radio architecture as described in claim 1, wherein at least two logical events are set up in the event mapping descriptor using an AND relationship.

11. The radio architecture as described in claim 1, wherein at least two physical events are set up in the event mapping descriptor using an OR relationship.

12. The radio architecture as described in claim 1, wherein at least two physical events are set up in the event mapping descriptor using an AND relationship.

13. The radio architecture system of claim 1, wherein the physical configuration descriptors are encrypted.

14. The radio architecture system of claim 1, wherein the physical configuration descriptors are digitally signed.

15. The radio architecture system of claim 1, wherein the event mapping descriptors are encrypted.

16. The radio architecture system of claim 1, wherein the event mapping descriptors are digitally signed.

17. The radio architecture of claim 1, wherein for physical events, the accessory interface manager sends physical event mapping descriptors to a user input manager, and for output events, the accessory interface manager monitors outputs from a low level display/indicator manager and activates/deactivates display and indicator drivers.