MULTIPLE PROTOCOL RECEPTION AND DIFFERENTIATION

• US 20080177441A1
• Filed: 01/15/2008
• Published: 07/24/2008
• Est. Priority Date: 01/22/2007
• Status: Active Grant

• Current Assignee: Continental Automotive Systems, Inc. (Continental AG)
• Original Assignee: Continental Automotive Systems US Incorporated (Continental AG)
• Inventors: Marlett, Brian, Farrell, Brian, Kachouh, Patricia, Desai, Tejas B., Ostrander, Gerald
• Granted Patent: US 7,991,527 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0462 Structure of transmission protocol
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user

Abstract

A receiver receives transmission containing information from different vehicle systems and determines an origin of that transmission according to the length of the transmission.

Claims

1. A method of determining transmission origin comprising the steps of:

a) receiving a first transmission including a first number of data bits;

b) receiving a second transmission including a second number of data bits; and

c) determining an origin of the first transmission and the second transmission based on the number of data bits.

2. The method as recited in claim 1, wherein the first number of data bits is different than the second number of data bits.

3. The method as recited in claim 1, wherein the first transmission originates from a tire pressure monitoring system and the second transmission originates from a remote keyless entry system.

4. The method as recited in claim 1, wherein the determination of origin occurs upon receipt of one of the first transmission and the second transmission.

5. The method as recited in claim 1, including one receiver for receiving the first transmission and the second transmission.

6. The method as recited in claim 5, wherein the receiver considers the first transmission and the second transmission the same until one of the first and second transmissions are complete.

7. The method as recited in claim 1, including a third transmission including a third length of data bits, and the step of determining that the third transmission originates from a third system responsive to the third number of data bits.

8. A receiver assembly for communicating with a plurality of vehicle systems, the receiver assembly comprising:

a receiver provided for receiving at least a first transmission from a first system and a second transmission from a second system; and

a controller operating the receiver and determining an origin of the first transmission and the second transmission responsive to a number of data bits comprising the first transmission and the second transmission.

9. The assembly as received in claim 8, wherein the first transmission includes a first number of data bits and the second transmission includes a second number of data bits different than the first number of data bits.

10. The assembly as recited in claim 8, wherein the first system comprises a tire pressure monitoring system and the second system comprises a remote keyless entry system.

11. The assembly as recited in claim 8, including a third transmission from a third system, wherein the third transmission includes a third number of data bits different than both the first transmission and the second transmission.

12. The assembly as recited in claim 8, wherein the controller forwards the transmission to one of the first system and the second system responsive to the determination of the number of data bits.

13. The assembly as recited in claim 8, wherein the receiver is adapted to receive both the first transmission and the second transmission.

14. The assembly as recited in claim 13, wherein the receiver cycles between receipt of the first transmission and receipt of the second transmission.