VEHICLE VISION SYSTEM CAMERA WITH INTEGRATED PHYSICAL LAYER COMPONENTS

• US 20140247355A1
• Filed: 03/03/2014
• Published: 09/04/2014
• Est. Priority Date: 03/04/2013
• Status: Active Grant

• Current Assignee: Magna Electronics Incorporated (Magna International Incorporated)
• Original Assignee: Magna Electronics Incorporated (Magna International Incorporated)
• Inventors: Ihlenburg, Joern
• Granted Patent: US 10,057,544 B2
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

A vision system for a vehicle includes an imager for a vehicular camera and a data receiving device operable to receive image data captured by the imager. A data transfer system communicates captured image data from the imager to the data receiving device. The data transfer system includes a single differential data line. The single differential data line may use a bi-directional high speed serial differential signaling protocol and a mixed signal PHY interface at each of a plurality of nodes of the single differential data line.

Claims

1. A vision system for a vehicle, said vision system comprising:

an imager for a vehicular camera;

a data receiving device operable to receive image data captured by said imager;

a data transfer that communicates captured image data from said imager to said data receiving device; and

wherein said data transfer utilizes a single differential data line.

2. The vision system of claim 1, wherein said single differential data line comprises bidirectional data transfer.

3. The vision system of claim 2, wherein a back channel is used for control of said imager.

4. The vision system of claim 1, wherein said single differential data line comprises monodirectional data transfer.

5. The vision system of claim 1, wherein a control channel is provided via a separate camera communication interface.

6. The vision system of claim 1, wherein said single differential data line comprises a plurality of nodes.

7. The vision system of claim 6, wherein said single differential data line uses a bi-directional high speed serial differential signaling protocol and a mixed signal PHY interface at said nodes.

8. The vision system of claim 7, wherein said imager and said single differential data line use a MIPI D-PHY interface at one of said nodes.

9. The vision system of claim 7, wherein said data receiving device comprises a multi standard transceiver.

10. The vision system of claim 7, wherein said single differential data line comprises a coaxial cable.

11. The vision system of claim 7, wherein said interface at each of said nodes comprises a serializer and a deserializer.

12. The vision system of claim 7, wherein said PHY interface comprises a logic for error correction, error and link status checking for encoding/decoding an DC-balanced format either with or without additional parity or error correction information.

13. A vision system for a vehicle, said vision system comprising:

an imager for a vehicular camera;

a data receiving device operable to receive image data captured by said imager;

a data transfer that communicates captured image data from said imager to said data receiving device;

wherein said data transfer utilizes a single differential data line;

wherein said single differential data line comprises a plurality of nodes and wherein said imager and said single differential data line use an interface at one of said nodes;

wherein said interface at said node comprises a serializer and a deserializer; and

wherein a back channel is used for a control channel to control said imager.

14. The vision system of claim 13, wherein said control channel is provided via a separate camera communication interface.

15. The vision system of claim 13, wherein said single differential data line uses a bi-directional high speed serial differential signaling protocol and a mixed signal PHY interface at said nodes.

16. The vision system of claim 13, wherein said single differential data line comprises a coaxial cable.

17. The vision system of claim 13, wherein said imager and said single differential data line use a MIPI D-PHY interface at said one of said nodes.

18. A vision system for a vehicle, said vision system comprising:

an imager for a vehicular camera;

a data receiving device operable to receive image data captured by said imager;

a data transfer that communicates captured image data from said imager to said data receiving device;

wherein said data transfer utilizes a single differential data line;

wherein said single differential data line comprises a coaxial cable;

wherein said single differential data line comprises a plurality of nodes and wherein said single differential data line uses a bi-directional high speed serial differential signaling protocol and a mixed signal PHY interface at said nodes; and

wherein a back channel is used for a control channel to control said imager.

19. The vision system of claim 18, wherein said imager and said single differential data line use a PHY interface at one of said nodes.

20. The vision system of claim 18, wherein said control channel is provided via a separate camera communication interface.