Patent ID: 7898354

Claim:
A pulse generation circuit for generating a pulse signal based on first and second continuous signals output from a differential oscillator, the pulse generation circuit comprising: a control signal generation circuit for outputting a first control signal containing an On period and an Off period which differs from the On period in voltage value on a time axis; a first three-terminal active element having a first active terminal and a second active terminal, in which the first control signal and the first continuous signal are input into the first active terminal, the first continuous signal is frequency-multiplied in accordance with the voltage value of the first control signal, and a first multiplication signal having a conversion gain in the On period of the first control signal higher than a conversion gain in the Off period is output from the second active terminal; a second three-terminal active element having a third active terminal and a fourth active terminal, in which the first control signal and the second continuous signal are input into the third active terminal, the second continuous signal is frequency-multiplied in accordance with the voltage value of the first control signal, and a second multiplication signal having a conversion gain in the On period of the first control signal higher than a conversion gain in the Off period is output from the fourth active terminal; and a waveform combining circuit for combining the first and second multiplication signals, wherein an amplitude of the first control signal in the Off period of the first control signal is larger than an amplitude of the first continuous signal measured at the first active terminal and an amplitude of the second continuous signal measured at the third active terminal.