| 主权项 |
1. An emphasis signal generating circuit, comprising:
a branch circuit configured to split a signal into a plurality of paths; a delay circuit provided in one or more of the paths into which the signal has been split by the branch circuit, the delay circuit being configured to delay one or more signals; a phase compensation circuit provided in one or more of the paths into which the signal has been split by the branch circuit, the phase compensation circuit having such characteristics that a low intensity of a transmission signal appears in a low frequency band, a maximum intensity of the transmission signal appears in a high frequency band, and a phase of the transmission signal approaches from a near-zero degree in the low frequency band to near-90 degrees around a middle frequency band and returns to the near-zero degree in the high frequency band; and an addition/subtraction circuit configured to perform addition and/or subtraction of signals from the plurality of paths and output a result. |
