Synchronous transfer of streaming data in a distributed antenna system
First Claim
1. A method of generating a jitter reduced clock signal from signal transmitted over a communication medium, the method comprising:
- receiving, with high speed data interface circuitry, a modulated signal that includes a binary encoded data stream;
generating a recovered clock signal from the modulated signal that tracks the long-term drift in the modulated signal; and
generating a jitter reduced clock signal by filtering the recovered clock signal with a filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal.
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Accused Products
Abstract
Method and apparatus for generating a jitter reduced clock signal from signal transmitted over a communication medium includes receiving, with high speed data interface circuitry, a modulated signal that includes a binary encoded data stream. A recovered clock signal is generated from the modulated signal and tracks the long-term drift in the modulated signal. A jitter reduced clock signal is generated by filtering the recovered clock signal with a filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal.
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Citations
19 Claims
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1. A method of generating a jitter reduced clock signal from signal transmitted over a communication medium, the method comprising:
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receiving, with high speed data interface circuitry, a modulated signal that includes a binary encoded data stream; generating a recovered clock signal from the modulated signal that tracks the long-term drift in the modulated signal; and generating a jitter reduced clock signal by filtering the recovered clock signal with a filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A distributed antenna system, comprising:
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a master unit that clocks a binary encoded data stream onto high speed data interface circuitry using a modulated signal; and at least one remote unit that receives the modulated signal and binary encoded data stream from the master unit, the at least one remote unit including; a clock recovery circuit that is configured to generate a recovered clock signal from the modulated signal that tracks long-term drift in the modulated signal; and a filtering circuit to filter the recovered clock signal, the filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal for generating a jitter reduced clock signal. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A remote unit for use in a distributed antenna system, the remote unit configured for coupling with a master unit to transceive a modulated signal with the master unit, the remote unit comprising:
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a clock recovery circuit that is configured to generate a recovered clock signal from the modulated signal that tracks long-term drift in the modulated signal; and a filtering circuit to filter the recovered clock signal, the filtering circuit having a bandwidth sufficient to remove jitter while allowing the jitter reduced clock signal to track the drift in the modulated signal for generating a jitter reduced clock signal. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification