Bi-directional signal interface and apparatus using same
First Claim
Patent Images
1. A signal interface comprising:
- a) a balanced dual-drive device having a first and a second input port and an output port, the first input port being coupled to an outgoing signal source that generates an output signal and an incoming signal source that generates an incoming signal, the second input port being coupled to the outgoing signal source; and
b) a means for isolating the input signal from the second input,wherein the dual-drive device passes the incoming signal to the output port while isolating the outgoing signal from the incoming signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A signal interface includes a dual-drive device having a first and a second input port that receive an outgoing signal. One of the first and the second input ports also receive an incoming signal. The dual-drive device passes the incoming signal to an output port while isolating the outgoing signal from the incoming signal.
56 Citations
18 Claims
-
1. A signal interface comprising:
-
a) a balanced dual-drive device having a first and a second input port and an output port, the first input port being coupled to an outgoing signal source that generates an output signal and an incoming signal source that generates an incoming signal, the second input port being coupled to the outgoing signal source; and b) a means for isolating the input signal from the second input, wherein the dual-drive device passes the incoming signal to the output port while isolating the outgoing signal from the incoming signal. - View Dependent Claims (16)
-
-
2. A signal interface comprising:
-
a) an optical source that generates an optical signal at an output; b) an incoming electrical signal source that generates an incoming electrical signal at an output; c) an outgoing electrical signal source that generates an outgoing electrical signal at an output; d) a splitter having an input that is electrical coupled to the output of the outgoing electrical signal source, the splitter splitting the outgoing electrical signal into a first portion of the outgoing electrical signal at a first output and a second portion of the outgoing electrical signal at a second output; and e) an electro-optic modulator having an optical input that is coupled to the output of the optical source, a first electrical port that is coupled to the first output of the splitter, a second electrical port that is coupled to the second output of the splitter, and a third electrical port that is coupled to the incoming electrical signal source, the electro-optic modulator modulating the incoming electrical signal while isolating the outgoing electrical signal from the incoming electrical signal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 17)
-
-
11. A method of interfacing an outgoing electrical signal with an incoming electrical signal, the method comprising:
-
a) receiving an optical signal at an optical input of dual-drive electro-optic modulator; b) receiving a first portion of an outgoing electrical signal at a first port of the dual-drive electro-optic modulator; c) receiving a second portion of the outgoing electrical signal at a second port of the dual-drive electro-optic modulator; d) receiving an incoming electrical signal at a third electrical port of the dual-drive electro-optic modulator; e) modulating the incoming electrical signal on the optical signal while isolating the outgoing electrical signal from the incoming electrical signal with the dual-drive electro-optic modulator; and f) detecting a modulated incoming electrical signal at an output port of the electro-optic modulator. - View Dependent Claims (12, 13, 14, 15, 18)
-
Specification