US 11,876,561 B2
Signal processor, RoF transceiver, fiber optic radio system, and signal processing method
Toshinori Suzuki, Kanagawa (JP); and Takamitsu Aiba, Kanagawa (JP)
Assigned to YAZAKI CORPORATION, Tokyo (JP)
Filed by YAZAKI CORPORATION, Tokyo (JP)
Filed on Sep. 1, 2022, as Appl. No. 17/901,491.
Claims priority of application No. 2021-144438 (JP), filed on Sep. 6, 2021.
Prior Publication US 2023/0070232 A1, Mar. 9, 2023
Int. Cl. H04B 10/2575 (2013.01); H04B 10/40 (2013.01)
CPC H04B 10/25759 (2013.01) [H04B 10/40 (2013.01); H04B 10/2575 (2013.01); H04B 10/25752 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A signal processor provided in a transceiver for transmitting and receiving a radio signal, the signal processor comprising:
a branch unit configured to branch a transmission signal and acquire a branch signal;
a detection unit configured to detect the branch signal and acquire a voltage value of the branch signal;
a determination unit configured to compare the voltage value of the branch signal with a threshold voltage previously stored in a storage unit and determine whether the voltage value of the branch signal is equal to or greater than the threshold voltage; and
a power source controller configured to control turning on and off of a power source for a reception signal amplifier of the transceiver according to a determination result determined by the determination unit.