Methods and apparatus for optical wireless communication
First Claim
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1. A combination wireless optical and radio frequency communication system comprising:
- a transmitter, coupled to a video data source having a source output, the transmitter comprising an optical wireless transmitter to receive video data from the source output and to encode the video data into a laser beam, the transmitter further comprising a receiver simulator having a first shadow memory, and wherein the transmitter further comprises an associated first radio frequency transceiver for sending a query for video format information, and for receiving, in response to the query, video format information corresponding to a preferred format of the display device; and
a receiver, coupled to a display device, the receiver comprising an optical wireless receiver to receive the laser beam and to decode the video data therefrom, the receiver further comprising a transmitter simulator configured to,poll one or more device registers of a display device andsend updates to the first shadow memory of the receiver simulator for access by the transmitter upon request, where said updates are based on information obtained from said polling of the one or more device registers.
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Abstract
Methods and apparatus for optical wireless communication. In one embodiment, a wireless optical video system in which video content (e.g., DVI or HDMI) is transmitted wirelessly between a digital video source and a display device. This wireless optical communication is accomplished using a laser, encoded with the digital video data, directed from an optical transmitter to an optical receiver. In another embodiment, the data to be communicated includes high-definition video content.
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Citations
28 Claims
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1. A combination wireless optical and radio frequency communication system comprising:
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a transmitter, coupled to a video data source having a source output, the transmitter comprising an optical wireless transmitter to receive video data from the source output and to encode the video data into a laser beam, the transmitter further comprising a receiver simulator having a first shadow memory, and wherein the transmitter further comprises an associated first radio frequency transceiver for sending a query for video format information, and for receiving, in response to the query, video format information corresponding to a preferred format of the display device; and a receiver, coupled to a display device, the receiver comprising an optical wireless receiver to receive the laser beam and to decode the video data therefrom, the receiver further comprising a transmitter simulator configured to, poll one or more device registers of a display device and send updates to the first shadow memory of the receiver simulator for access by the transmitter upon request, where said updates are based on information obtained from said polling of the one or more device registers. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a transmitter, coupled to a video data source having a source output, said transmitter having an associated first radio frequency transceiver for sending a query for video format information, and for receiving, in response to the query, video format information corresponding to a preferred format of a display device, wherein the transmitter further comprises an optical wireless transmitter to receive video data from the source output and encode said video data into a laser beam in accordance with the received video format information; a receiver, coupled to a display device, having an associated second radio frequency transceiver for receiving said query and for sending, in response to the query, requested video formation information to the first radio frequency transceiver, wherein the receiver further comprises an optical wireless receiver to receive said laser beam and to extract said video data therefrom for presentation by said display device; a receiver simulator coupled to the first radio frequency transceiver having a first shadow memory; and a transmitter simulator coupled to the second radio frequency transceiver, wherein the transmitter simulator is configured to poll one or more device registers and send updates to the first shadow memory of the receiver simulator for access by the transmitter upon request, where said updates are based on information obtained from polling of the one or more device registers. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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receiving video data from a source having a source output; sending a query for video format information over a control-channel radio frequency communication link; receiving over the control-channel radio frequency communication link, and in response to said query, video format information corresponding to a preferred format of a display device; encoding said video data into a laser beam in accordance with the received video format information; transmitting said laser beam from an optical wireless transmitter to an optical wireless receiver; receiving said laser beam by the optical wireless receiver to extract said video data therefrom; providing said video data to a display device having a destination input; polling one or more device registers of the display device; and sending updates based on said polling over the control-channel radio frequency communication link to a first shadow memory local to the source for access by the source upon request. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification