AUTOMATICALLY CONFORMING THE ORIENTATION OF A DISPLAY SIGNAL TO THE ROTATIONAL POSITION OF A DISPLAY DEVICE RECEIVING THE DISPLAY SIGNAL
First Claim
1. A display system in which the rotational orientation of a video signal generated by a computer system is automatically conformed to a rotational position of a display device, comprising:
- the display device comprising;
a video input connector that receives a video signal from the computer system,a display area in which an image specified by the video signal is displayed, anda universal serial bus connector to which devices may be attached in order to communicate via the universal serial bus protocol on a universal serial bus established by the computer system;
an add-on module having a universal serial bus connector, the add-on module being directly physically attached to the display device by the connection of its universal serial bus connector to the universal serial bus connector of the display device, the add-on module comprising;
an orientation detection subsystem that detects the rotational orientation of the add-on module, anda communication subsystem that uses the universal serial bus established by the computer system to communicate to the computer system notifications of the rotational orientation of the add-on module detected by the orientation detection subsystem; and
the computer system comprising;
video hardware generating the video signal specifying the image in a rotational orientation selected by a video driver,a memory storing;
the video driver selecting a current rotational orientation; and
a device driver for the add-on module that receives notifications communicated by the communications subsystem of the add-on module and, in cases where the notification'"'"'s rotational orientation differs from the current rotational orientation selected by the video driver, causes the video driver to alter the current rotational orientation selected by the video driver to conform the current rotational orientation selected by the video driver to the notification'"'"'s rotational orientation, anda processor for executing the video driver and the device driver.
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Accused Products
Abstract
An add-on module is described. The add-on module is comprised of an attachment mechanism, an orientation detection subsystem, and a communication subsystem. The attachment mechanism is adapted to be usable by an end user of a display device to directly attach the add-on module to the display device. The orientation detection subsystem detects the rotational orientation of the display device. The communication subsystem communicates to a video source from which the display device receives a video signal notifications of the rotational orientation of the display device detected by the orientation detection subsystem. This enables the video source to, upon receiving each notification of the rotational orientation of the display device detected by the orientation detection subsystem, conform to the notification'"'"'s rotational orientation the rotational orientation of the video signal received from the video source.
47 Citations
26 Claims
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1. A display system in which the rotational orientation of a video signal generated by a computer system is automatically conformed to a rotational position of a display device, comprising:
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the display device comprising; a video input connector that receives a video signal from the computer system, a display area in which an image specified by the video signal is displayed, and a universal serial bus connector to which devices may be attached in order to communicate via the universal serial bus protocol on a universal serial bus established by the computer system; an add-on module having a universal serial bus connector, the add-on module being directly physically attached to the display device by the connection of its universal serial bus connector to the universal serial bus connector of the display device, the add-on module comprising; an orientation detection subsystem that detects the rotational orientation of the add-on module, and a communication subsystem that uses the universal serial bus established by the computer system to communicate to the computer system notifications of the rotational orientation of the add-on module detected by the orientation detection subsystem; and the computer system comprising; video hardware generating the video signal specifying the image in a rotational orientation selected by a video driver, a memory storing; the video driver selecting a current rotational orientation; and a device driver for the add-on module that receives notifications communicated by the communications subsystem of the add-on module and, in cases where the notification'"'"'s rotational orientation differs from the current rotational orientation selected by the video driver, causes the video driver to alter the current rotational orientation selected by the video driver to conform the current rotational orientation selected by the video driver to the notification'"'"'s rotational orientation, and a processor for executing the video driver and the device driver.
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2. A method for automatically conforming the rotational orientation of an image signal generated by a computer system to a rotational position of a display device, comprising:
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connecting the display device to a computer system such that (a) the display device receives the image signal from the computer system and (b) devices connected to a universal serial bus connector of the display can communicate via a universal serial bus hosted by the computer system; connecting to the universal serial bus connector of the display device a universal serial bus connector of an add-on module, such that (a) the add-on module can communicate via the universal serial bus hosted by the computer system and (b) the add-on module is rotated to a new rotational orientation when the display device is rotated to a new rotational orientation; in the add-on module, detecting a rotation of the add-on module to a new rotational orientation; and in response to the detecting, reporting the new rotational orientation to a device driver for the add-on module installed on the computer system via the universal serial bus hosted by the computer system; in the device driver for the add-on module, receiving the report from the add-on module; and instructing a second device driver installed on the computer system that controls the rotational orientation of the image signal generated by the computer system to alter the rotational orientation of the image signal generated by the computer system to conform the rotational orientation of the image signal generated by the computer system to the new rotational orientation reported by the add-on module.
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3. (canceled)
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4. An add-on module comprising:
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an attachment mechanism adapted to be usable by an end user of a display device to directly attach the add-on module to the display device; an orientation detection subsystem that detects the rotational orientation of the display device; and a communication subsystem that communicates to a video source from which the display device receives a video signal notifications of the rotational orientation of the display device detected by the orientation detection subsystem, such that the video source may, upon receiving each notification of the rotational orientation of the display device detected by the orientation detection subsystem, conform to the notification'"'"'s rotational orientation the rotational orientation of the video signal received from the video source. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26-40. -40. (canceled)
Specification