Method of assigning a device identification

• US 6,114,970 A
• Filed: 01/09/1997
• Issued: 09/05/2000
• Est. Priority Date: 01/09/1997
• Status: Expired due to Fees

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Lucas, Brian G., Kirson, Allan M.
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Asongwed, Anthony A.
• Application Number:
  US08/780,976
• Time in Patent Office: 1,335 Days
• Field of Search: 379/350, 340/825.07, 340/825.06, 340/825.52, 340/825.53, 340/825.21, 360/49, 370/383, 370/409, 370/458, 370/406, 395/829, 395/823, 711/200, 711/212, 711/214, 711/220, 711/117, 1/1, 341/51, 707/100, 180/313
• US Class Current: 340/9.16
• CPC Class Codes: B60R 16/0315 using multiplexing techniques multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H04L 61/5092 by self-assignment, e.g. picking addresses at random and testing if they are already in use

Abstract

The present invention provides a method of assigning a unique device identification to an electronic device coupled into a communication architecture. Once coupled into the communication architecture a piece of globally unique identifying data is retrieved and utilized to generate a device identification which identification is then assigned to the device.

Claims

1. In a motor vehicle with a memory, the motor vehicle being identified by a unique vehicle identification number in the memory, a method of assigning a device identification to each of a plurality of electronic devices coupled to a communication architecture within the motor vehicle, the method comprising the steps of:

obtaining the vehicle identification number;

generating a device identification for each electronic device associated within the motor vehicle based upon the vehicle identification number; and

storing the device identification within at least one of the memory and the associated electronic device itself.

2. The method of claim 1 wherein the step of generating a device identification comprises concatenating the vehicle identification number with a device identification number.

3. The method of claim 1 wherein the obtaining step includes one of the plurality of electronic devices retrieving the vehicle identification number from the memory through the communication bus, and wherein the generating step includes the one of the plurality of electronic devices generating the device identification, and wherein the storing step includes the storing the device identification within the associated one of the plurality of electronic devices.

4. The method of claim 1 wherein the communication architecture comprises a vehicle systems bus and a peripheral systems bus, the vehicle systems bus and the peripheral systems bus being coupled.

5. The method of claim 4 wherein the plurality of electronic devices is coupled to the peripheral systems bus.

6. The method of claim 1 wherein the vehicle identification number is a multi-character alphanumeric sequence.

7. The method of claim 1 wherein the the step of obtaining the vehicle identification number comprises obtaining the vehicle identification number from the memory.

8. The method of claim 7 further comprising the steps of:

associating an additional device with the motor vehicle,

obtaining the vehicle identification number from the memory, and

generating a device identification for the additional device based upon the vehicle identification number.