Adaptable wireless vehicle vision system based on wireless communication error

  • US 8,890,955 B2
  • Filed: 02/09/2011
  • Issued: 11/18/2014
  • Est. Priority Date: 02/10/2010
  • Status: Active Grant
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First Claim
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1. A vehicular vision system for a vehicle, said vehicular vision system comprising:

  • a camera subsystem, said camera subsystem comprising an imaging sensor disposed at a vehicle equipped with said vehicular vision system, said imaging sensor capturing image data and said camera subsystem wirelessly transmitting said image data;

    a display subsystem comprising a video display screen disposed in the equipped vehicle for displaying images for viewing by a driver of the equipped vehicle when the driver is normally operating the equipped vehicle, wherein said display subsystem is operable to receive said transmitted image data from said camera subsystem;

    wherein said display subsystem transmits an error signal responsive to processing of said image data and wherein said camera subsystem receives said error signal and (a) adjusts a compression factor of said image data responsive to said error signal and (b) adjusts a transmission rate of said image data responsive to said error signal;

    wherein, when said error signal is indicative of an increase in errors in the transmission of image data, said camera subsystem decreases said transmission rate and increases said compression factor, and wherein, when said error signal is indicative of a decrease in errors in the transmission of image data, said camera subsystem increases said transmission rate and decreases said compression factor;

    wherein said display subsystem determines a number of errors in the image data received by said display subsystem and wherein said display subsystem reports the number of errors in the received image data to said camera subsystem via a return path of a wireless communication link between said display subsystem and said camera subsystem; and

    wherein, responsive to said display subsystem determining an increase in errors in said image data to at least a threshold number of errors, said camera subsystem reduces portions of the video image data before compression.

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