Cable with fade and hot plug features
First Claim
Patent Images
1. A cable comprising:
- a host connector configured to connect to a host computing device;
an external display connector configured to connect to an external display;
a transmission medium coupled between the host connector and the external display connector; and
a video processing system embedded in the cable, wherein the video processing system is configured to enter a low power mode in response to a lack of connection to an external display on the external display connector, wherein at least a portion of the video processing system is powered down in the low power mode, and wherein, in the low power mode, the video processing system is configured to detect a connection of the external display to the external display connector and to send a communication to the host connector in response to detecting the connection.
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Abstract
In an embodiment, a host computing device includes an internal display and also includes a connector to connect to an external display. A cable is provided to connect to the connector and to connect to the external display. The cable includes video processing capabilities. For example, the cable may include a memory configured to store a frame buffer. The frame buffer may store a frame of video data for further processing by the video processing device in the cable. The video processing device may manipulate the frame in a variety of ways, e.g. scaling, rotating, gamma correction, dither correction, etc.
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Citations
17 Claims
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1. A cable comprising:
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a host connector configured to connect to a host computing device; an external display connector configured to connect to an external display; a transmission medium coupled between the host connector and the external display connector; and a video processing system embedded in the cable, wherein the video processing system is configured to enter a low power mode in response to a lack of connection to an external display on the external display connector, wherein at least a portion of the video processing system is powered down in the low power mode, and wherein, in the low power mode, the video processing system is configured to detect a connection of the external display to the external display connector and to send a communication to the host connector in response to detecting the connection. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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a host computing device comprising a host display, wherein the host computing device is configured to generate one or more first frames to be displayed on the host display and on an external display; the external display; and a cable coupled between the host computing device and the external display, the cable comprising an embedded video processing system configured to process the one or more frames transmitted on the cable by the host computing device, wherein the video processing system is configured to enter a low power mode if the external display is not connected, and wherein the video processing system is configured to detect that the external display is connected to the cable while the video processing system is in the low power mode, and wherein the video processing system is configured to transmit a message to the host computing device responsive to detecting the connection of the external display, wherein the video processing system is configured to return to the low power mode responsive to transmitting the message. - View Dependent Claims (7, 8, 9, 10)
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11. A method comprising:
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entering a low power mode in a video processing system embedded in a cable configured to connect between a host computing device and an external display, the video processing system entering the low power mode in response to a lack of connection to an external display on an external display connector of the cable, wherein at least a portion of the video processing system is powered down in the low power mode; detecting a connection to the external display in the video processing system while in the low power mode; and sending a communication to a host connector of the cable from the video processing system in response to detecting the connection. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification