Vehicle video display system
First Claim
1. A vehicle display system, comprising:
- a video camera;
a processor;
a graphic controller;
an image processing module receiving video signals from the video camera and generating first video data in a first format;
a memory having a system management mode (SMM) program, wherein the SMM program is configured to, when executed at the processor, instruct the processor toread the first video data from a first area of the memory;
convert the first video data to second video data in a second format; and
write the second video data to a second area of the memory;
a memory controller controlling the memory; and
a PCI express switch configured toforward the first video data in the first format and received from the image processing module to the memory controller for storing in the first area of the memory; and
forward the second video data in the second format and retrieved by the memory controller from the second area of the memory to the graphic controller.
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Accused Products
Abstract
A vehicle display system and methods of controlling the same. In certain embodiments, an image processing module receives video signals from a video camera and generates first video data in a first format. A system management mode (SMM) program is stored in a memory. When executed at a processor, the SMM program reads the first video data from a first area of the memory, converts the first video data to second video data in a second format, and writes the second video data to a second area of the memory. A PCI express switch forwards the first video data in the first format to a memory controller for storing in the first area of the memory, and forwards the second video data in the second format from the second area of the memory to the graphic controller.
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Citations
25 Claims
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1. A vehicle display system, comprising:
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a video camera; a processor; a graphic controller; an image processing module receiving video signals from the video camera and generating first video data in a first format; a memory having a system management mode (SMM) program, wherein the SMM program is configured to, when executed at the processor, instruct the processor to read the first video data from a first area of the memory; convert the first video data to second video data in a second format; and write the second video data to a second area of the memory; a memory controller controlling the memory; and a PCI express switch configured to forward the first video data in the first format and received from the image processing module to the memory controller for storing in the first area of the memory; and forward the second video data in the second format and retrieved by the memory controller from the second area of the memory to the graphic controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling a vehicle display system, comprising:
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receiving, at an image processing module, video signals captured by a video camera, and generating first video data in a first format based on the video signals; forwarding, by a PCI express switch, the first video data received at the image processing module to a memory controller, and storing the first video data in a first area of a memory; executing, at a processor, a system management mode (SMM) program; reading, at the processor executing the SMM program, the first video data from the first area of the memory; converting, at the processor executing the SMM program, the first video data to second video data in a second format; writing, at the processor executing the SMM program, the second video data in a second area of the memory; retrieving, by the memory controller, the second video data in the second format from the second area of the memory; and forwarding, by the PCI express switch, the second video data retrieved by the memory controller to a graphic controller. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A non-transitory computer readable medium storing computer executable codes, wherein the codes, when executed at a processor of a vehicle display system, are configured to
instruct an image processing module to receive video signals captured by a video camera, and to generate first video data in a first format based on the video signals; -
instruct a PCI express switch to forward the first video data received at the image processing module to a memory controller, and store the first video data in a first area of a memory; execute a system management mode (SMM) program; read, at the processor executing the SMM program, the first video data from the first area of the memory; convert, at the processor executing the SMM program, the first video data to second video data in a second format; write, at the processor executing the SMM program, the second video data in a second area of the memory; instruct the memory controller to retrieve the second video data in the second format from the second area of the memory; and instruct the PCI express switch to forward the second video data retrieved by the memory controller to a graphic controller. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification