Independent upstream/downstream bandwidth allocations in a common hybrid telecommunications network
First Claim
1. A network interface apparatus comprising:
- (a) a bidirectional optical signal port;
(b) an optical diplexer connected to the bidirectional optical signal port;
(c) a first RF signal port;
(d) a second RF signal port;
(e) a first RF diplexer configured and connected to transmit a first received RF input signal from the first RF signal port to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port, the first RF signal port being a bidirectional RF signal port; and
(f) an RF splitter configured and connected (i) to receive from the optical diplexer an RF signal derived from an RF-modulated optical input signal received from the bidirectional optical signal port, (ii) to transmit a first portion of the derived RF signal as a first RF output signal to the first RF signal port through the first RF diplexer, and (iii) to transmit a second portion of the derived RF signal as a second RF output signal to the second RF signal port.
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Accused Products
Abstract
A network interface apparatus comprises a bidirectional optical signal port, an optical diplexer connected to the bidirectional optical signal port, a first RF signal port (bidirectional), a second RF signal port, a first RF diplexer, and an RF splitter. The RF diplexer transmits a first received RF input signal from the first RF signal port to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port. The RF splitter receives from the optical diplexer an RF signal derived from an RF-modulated optical input signal received from the bidirectional optical signal port, transmits a first portion of the derived RF signal as a first RF output signal to the first RF signal port through the first RF diplexer, and transmits a second portion of the derived RF signal as a second RF output signal to the second RF signal port.
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Citations
30 Claims
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1. A network interface apparatus comprising:
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(a) a bidirectional optical signal port; (b) an optical diplexer connected to the bidirectional optical signal port; (c) a first RF signal port; (d) a second RF signal port; (e) a first RF diplexer configured and connected to transmit a first received RF input signal from the first RF signal port to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port, the first RF signal port being a bidirectional RF signal port; and (f) an RF splitter configured and connected (i) to receive from the optical diplexer an RF signal derived from an RF-modulated optical input signal received from the bidirectional optical signal port, (ii) to transmit a first portion of the derived RF signal as a first RF output signal to the first RF signal port through the first RF diplexer, and (iii) to transmit a second portion of the derived RF signal as a second RF output signal to the second RF signal port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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(a) receiving into an RF splitter from an optical diplexer an RF signal derived from an RF-modulated optical signal received by the optical diplexer from a bidirectional optical signal port; (b) transmitting from the RF splitter (i) a first portion of the derived RF signal to a first RF signal port as a first RF output signal through a corresponding first RF diplexer, and (ii) a second portion of the derived RF signal as a second RF output signal to a second RF signal port; (c) receiving a first RF input signal from the first RF signal port through the first RF diplexer, the first RF signal port being a bidirectional RF signal port; and (d) transmitting the first received RF input signal to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method comprising:
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(a) receiving from an optical network into a corresponding bidirectional optical port of each of the multiple network interface units the RF-modulated optical signal and deriving an RF signal therefrom; (b) transmitting a corresponding portion of the derived RF signal only in a corresponding output RF frequency range to a corresponding bidirectional RF signal port of each of the multiple network interface units; (c) receiving a corresponding RF signal into a corresponding bidirectional RF signal port of each of the multiple network interface units; and (d) transmitting the corresponding received RF signal only in a corresponding input RF frequency range to modulate a corresponding optical signal transmitted by each network interface unit through the corresponding bidirectional optical port to the optical network, wherein at least one corresponding input RF frequency range at least partly overlaps at least one corresponding output RF frequency range. - View Dependent Claims (28, 29, 30)
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Specification