Hybrid Multi-Band Communication System
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJae Joon Chang, Youngsik Hur
Life of this patent
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Abstract
A communication system includes a hybrid signal transmitter incorporating a signal routing circuit and a driver circuit. The signal routing circuit is configured to receive a first input signal and route the first input signal through a first signal path when the frequency bandwidth of the input signal is lower than a threshold frequency and through a second signal path when the frequency bandwidth exceeds the threshold frequency. The second signal path includes a frequency down-converter circuit. The driver circuit is configured to receive the routed input signal via the first signal path or the second signal path, and convert the routed input signal into an optical signal for coupling into an optical fiber.
Claims20
A communication system comprising:
- a hybrid signal transmitter, the hybrid signal transmitter comprising:
- a signal routing circuit configured to receive a first input signal, and route the first input signal through a first signal path when the frequency bandwidth of the input signal is lower than a threshold frequency and through a second signal path when the frequency bandwidth exceeds the threshold frequency, the second signal path comprising a frequency down-converter circuit;
- and
- a driver circuit configured to receive the routed input signal via the first signal path or the second signal path, and convert the routed input signal into an optical signal for coupling into an optical fiber.
A communication system comprising:
- a hybrid signal receiver, the hybrid signal receiver comprising:
- an optical-to-electrical converter for converting an optical signal to an electrical signal;
- and
- a signal routing circuit configured to receive the electrical signal and route a baseband frequency portion of the electrical signal to a first output node, a radio-frequency (RF) portion of the electrical signal to a second output node, and an intermediate frequency (IF) portion of the electrical signal to a third output node.
A method of communication, comprising:
- down-converting a microwave frequency signal to an intermediate frequency (IF) signal;
- producing a hybrid signal by combining the IF signal with at least one of a) a baseband signal, or b) a radio frequency (RF) signal;
- converting the hybrid signal to an optical signal;
- and
- coupling the optical signal into an optical fiber.
Dependencies are inferred from the claim text.