IP Library Granted Patent US 10,057,544
Granted Patent B2
US 10,057,544 · App. 14/195,136 · Granted Aug 21, 2018

Vehicle vision system camera with integrated physical layer components

Inventor: Joern Ihlenburg (Berlin, DE)
Assignee: MAGNA ELECTRONICS INC.
H04N7/18
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Quick Facts
Patent No.
US 10,057,544
App. No.
14/195,136
Granted
Aug 21, 2018
Kind
B2
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 (48)

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 of said vehicular camera;

a data transfer interface that communicates image data captured by said imager of said vehicular camera to said data receiving device;

wherein said data transfer interface utilizes a single differential data line, and wherein transfer of captured image data comprises a signal modulated to and transferred via an analog carrier wave;

wherein said single differential data line comprises a coaxial cable;

wherein said coaxial cable carries DC power to said vehicular camera;

wherein said vision system comprises logic that uses error correction and status checking to cope with a length of said single differential data line;

wherein said logic encodes captured image data for communication via said single differential data line in a DC-balanced format;

wherein said single differential data line provides monodirectional data transfer of image data captured by said imager from said vehicular camera to said data receiving device; and

wherein said single differential data line provides bidirectional data transfer of other data between said vehicular camera and said data receiving device.

2. The vision system of claim 1 , wherein said single differential data line includes a back channel used for control of said imager.

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

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

5. The vision system of claim 4 , 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.

6. The vision system of claim 5 , wherein said imager and said single differential data line use a MIPI D-PHY interface at one of said nodes.

7. The vision system of claim 5 , wherein said data receiving device comprises a multi standard transceiver.

8. The vision system of claim 5 , wherein said mixed signal PHY interface at each of said nodes comprises a serializer and a deserializer.

9. The vision system of claim 5 , wherein said mixed signal PHY interface comprises a logic for error correction, error and link status checking for Inventor Serial encoding/decoding an DC-balanced format either with or without additional parity or error correction information.

10. 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 of said vehicular camera;

a data transfer interface that communicates image data captured by said imager of said vehicular camera to said data receiving device;

wherein transfer of captured image data utilizes a single differential data line; wherein said single differential data line comprises a coaxial cable;

wherein said coaxial cable carries DC power to said vehicular camera;

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

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

wherein said single differential data line provides monodirectional data transfer of image data captured by said imager from said vehicular camera to said data receiving device;

wherein said single differential data line provides bidirectional data transfer of other data between said vehicular camera and said data receiving device;

wherein said single differential data line includes a back channel used for as a control channel to control said imager;

wherein transfer of captured image data comprises a signal modulated to and transferred via an analog carrier wave;

wherein said vision system comprises logic that uses error correction and status checking to cope with a length of said single differential data line; and

wherein said logic encodes captured image data for communication via said single differential data line in a DC-balanced format.

11. The vision system of claim 10 , wherein said control channel is provided via a separate camera communication interface.

12. The vision system of claim 10 , 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.

13. The vision system of claim 10 , wherein said imager and said single differential data line use a MIPI D-PHY interface at said one of said nodes.

14. 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 of said vehicular camera;

a data transfer interface that communicates image data captured by said imager of said vehicular camera to said data receiving device;

wherein transfer of captured image data utilizes a single differential data line; wherein said single differential data line comprises a coaxial cable; wherein said coaxial cable carries DC power to said vehicular camera;

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;

wherein said single differential data line provides monodirectional data transfer of image data captured by said imager from said vehicular camera to said data receiving device;

wherein said single differential data line provides bidirectional data transfer of other data between said vehicular camera and said data receiving device; and

wherein said single differential data line includes a back channel used as a control channel to control said imager;

wherein transfer of captured image data comprises a signal modulated to and transferred via an analog carrier wave;

wherein said vision system comprises logic that uses error correction and status checking to cope with a length of said single differential data line; and

wherein said logic encodes captured image data for communication via said single differential data line in a DC-balanced format.

15. The vision system of claim 14 , wherein said imager and said single differential data line use a PHY interface at one of said nodes.

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

Continuity (2)
Provisional Application 61772015 · Mar 4, 2013
Related Publication 20140247355A1 · Sep 4, 2014