Apparatus and method for efficient two-way optical communication where transmitter may interfere with receiver
First Claim
1. An apparatus for providing two-way optical communication, the apparatus comprising:
- a transmit element, coupled to a light pipe, configured to transmit a first optical signal through said light pipe;
a receive element, also coupled to said light pipe, configured to receive a second optical signal through said light pipe;
an optical barrier, coupled to the light pipe, configured to at least partially isolate transmit and receive optical paths within split portions of the light pipe; and
a transceive processor, coupled to said transmit and receive elements, configured to direct said transmit element to suspend transmitting said first optical signal during a plurality of reception periods, and configured to direct said receive element to sample for said second optical signal during one or more sampling intervals within each of said reception periods,wherein said each of the plurality of reception periods last for a duration of time no greater than 40 milliseconds, and the plurality of reception periods occur in the first optical signal at a duty cycle no greater than 10 percent.
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Accused Products
Abstract
An two-way optical communication apparatus, including a transmit element, a receive element, and a transceive processor. The transmit element is coupled to a light pipe, and transmits a first signal. The receive element is coupled to the light pipe, and receives a second signal. The transceive processor directs the transmit element to pause and then resume transmitting the first signal during first intervals, and directs the receive element to sample for the second signal during one or more second intervals within each of the first intervals, where the each of the first intervals is less than a first value and the first intervals occur at a duty cycle no greater than a second value, and where the first and second values are controlled by the transceive processor such that a user perceives the first optical signal as having a constant state for a third interval.
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Citations
21 Claims
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1. An apparatus for providing two-way optical communication, the apparatus comprising:
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a transmit element, coupled to a light pipe, configured to transmit a first optical signal through said light pipe; a receive element, also coupled to said light pipe, configured to receive a second optical signal through said light pipe; an optical barrier, coupled to the light pipe, configured to at least partially isolate transmit and receive optical paths within split portions of the light pipe; and a transceive processor, coupled to said transmit and receive elements, configured to direct said transmit element to suspend transmitting said first optical signal during a plurality of reception periods, and configured to direct said receive element to sample for said second optical signal during one or more sampling intervals within each of said reception periods, wherein said each of the plurality of reception periods last for a duration of time no greater than 40 milliseconds, and the plurality of reception periods occur in the first optical signal at a duty cycle no greater than 10 percent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 14)
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8. An apparatus for providing two-way optical communication, the apparatus comprising:
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a light pipe, configured to transport illumination from optical signals between ends of said light pipe; a transmit element, coupled to a first one or said ends, configured to transmit a first optical signal through said light pipe to a second one of said ends; a receive element, coupled to said light pipe, configured to receive a second optical signal transported through said light pipe from said second one of said ends; an optical barrier, coupled to the light pipe, configured to at least partially isolate transmit and receive optical paths within split portions of the light pipe; and a transceive processor, coupled to said transmit and receive elements, configured to direct said transmit element to suspend transmitting said first optical signal during a plurality of reception periods, and configured to direct said receive element to sample for said second optical signal during one or more sampling intervals within each of said reception periods, wherein said each of the plurality of reception periods last for a duration of time no greater than 40 milliseconds, and the plurality of reception periods occur in the first optical signal at a duty cycle no greater than 10 percent. - View Dependent Claims (9, 10, 11, 12, 13)
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15. A method for providing two-way optical communication in a shared light pipe, the method comprising:
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while, via a transmit element, transmitting a first optical signal through the shared light pipe; suspending said transmitting during a plurality of reception periods, wherein said each of the plurality of reception periods last for a duration of time no greater than 40 milliseconds, and the plurality of reception periods occur in the first optical signal at a duty cycle no greater than 10 ; and via a receive element, receiving a second optical signal through the shared light pipe during one or more sampling intervals within each of said reception periods, wherein an optical barrier is coupled to the light pipe, and configured to at least partially isolate transmit and receive optical paths within a split portion of the light pipe. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification