Communications systems and methods
First Claim
1. A method of optical data communication using optical pulse package modulation, the method comprising:
- inputting data for communication, the data defining a plurality of data symbols for transmission;
encoding each of the data symbols onto first and second optical carriers, the encoding onto the first and second optical carriers comprising encoding a the data symbols as respective first and second pulse packets each comprising at least one optical pulse, the encoding using a common pulse packet position modulation for the first and second carriers, the first and second optical carriers having respective first and second optical wavelengths;
transmitting an optical signal comprising the first and second optical carriers;
receiving the transmitted optical signal comprising the first and second optical carriers; and
decoding the optical signal to recover the data symbols.
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Accused Products
Abstract
This invention relates to systems and methods for wireless and wired optical data communications, in particular infrared data communications using techniques borrowed ultra wideband (UWB) radio. Data is input for communication. The data defines a plurality of data symbols for transmission. Each the data symbol is encoded onto first and second optical carriers. The encoding comprises encoding each of the data symbols as respective first and second pulse packets each comprising at least one optical pulse. The encoding uses a common pulse packet position modulation for the first and second carriers. The first and second optical carriers have respective first and second optical wavelengths. An optical signal comprising the first and second optical carriers is transmitted, received, and decoded to recover the data symbols.
102 Citations
24 Claims
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1. A method of optical data communication using optical pulse package modulation, the method comprising:
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inputting data for communication, the data defining a plurality of data symbols for transmission;
encoding each of the data symbols onto first and second optical carriers, the encoding onto the first and second optical carriers comprising encoding a the data symbols as respective first and second pulse packets each comprising at least one optical pulse, the encoding using a common pulse packet position modulation for the first and second carriers, the first and second optical carriers having respective first and second optical wavelengths;
transmitting an optical signal comprising the first and second optical carriers;
receiving the transmitted optical signal comprising the first and second optical carriers; and
decoding the optical signal to recover the data symbols. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for optical data communication using optical pulse package modulation, the system comprising:
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an input-to-input data for communication, the data defining a plurality of data symbols for transmission;
an encoder to encode each of the data symbols onto first and second optical carriers, the encoding onto the first and second optical carriers comprising encoding the data symbols as respective first and second pulse packets each comprising at least one optical pulse, the encoding using a common pulse packet position modulation for the first and second carriers, the first and second optical carriers having respective first and second optical wavelengths;
an optical transmitter to transmit an optical signal comprising the first and second optical carriers;
an optical receiver to receive the transmitted optical signal comprising the first and second optical carriers; and
a decoder to decode the optical signal to recover the data symbols.
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12. An optical data transmitter configured to transmit data using optical pulse packet modulation, the transmitter comprising:
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a data input to receive data for transmission;
an encoder, coupled to the data input and having an encoded data output, the encoder being configured to encode the data for pulse packet position modulation onto first and second optical carriers using respective first and second pulse packets each comprising at least one optical pulse; and
an optical signal transmission system having an input coupled to the encoded data output, the optical signal transmission system being configured to provide an optical output comprising the first and second optical carriers, respectively, modulated by the first and second pulse packets. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An optical data receiver configured to receive data encoded using optical pulse packet modulation, the receiver comprising:
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an optical signal reception system configured to receive first and second optical carriers and to provide a received signal output; and
a decoder having an input coupled to the received signal output and a decoded data output, that decodes data modulated onto the first and second optical carriers using pulse packet position modulation in which data for reception is encoded across the first and second optical carriers using respective first and second pulse packets each comprising at least one optical pulse, the decoder being configured to provide a combined data output by jointly decoding the data modulated onto the first and second optical carriers. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification