Patent ID: 11876519
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An oscillation circuit comprising:
a first oscillator having output nodes of n stages, where n is an integer of 3 or more;
a second oscillator having output nodes of n stages; and
a third oscillator having output nodes of n stages,
m oscillators including the first oscillator, the second oscillator, and the third oscillator, where m is an integer of 3 or more,
wherein an output node at an a-th stage of the first oscillator and an output node at an a-th stage of the second oscillator are connected with each other, where a is an integer of 1 or more and n or less,
an output node at a b-th stage of the second oscillator and an output node at a b-th stage of the third oscillator are connected with each other, where b is an integer of 1 or more and n or less different from a,
different output nodes are connected with each other for each combination of two oscillators among the m oscillators,
the oscillators have a plurality of delay elements connected in cascade,
an output signal of a delay element at a last stage is fed back to an input side of a delay element at a first stage, and
two oscillators adjacent in a predetermined direction connect output nodes of delay elements at a stage different from a stage of other two oscillators adjacent in the predetermined direction.