Patent ID: 8760963

Claim:
A synchronous recording system, comprising: a first recording apparatus; and at least one second recording apparatus, each second recording apparatus being connected to the first recording apparatus through a communication line; wherein: the first recording apparatus comprises: a first oscillation detector that detects oscillation as first oscillation data; a first time receiver that receives time information; a first data buffer that adds the time information to the first oscillation data to generate first composite data, and records the first composite data; and a synchronous information transmitter that transmits synchronous information to the second recording apparatus, the synchronous information including a designated recording start time that corresponds to a designated time in the time information; and the second recording apparatus comprises: a second oscillation detector that detects oscillation as second oscillation data; a second time receiver that receives the time information; a second data buffer that adds the time information to the second oscillation data and records second composite data; an involatile recorder that records designated second composite oscillation data that was previously recorded in the second data buffer; a synchronous information receiver that receives the synchronous information transmitted from the synchronous information transmitter; and a recording controller that starts recording of the designated second composite oscillation data in the involatile recorder from the designated recording start time, wherein the designated second composite oscillation data recorded in the involatile recorder starts being recorded at the designated recording start time that was included in the synchronous information, and is associated with second composite oscillation data that was recorded in the second data buffer at a time earlier than an actual time that the recording controller starts recording the designated second composite oscillation data into the involatile recorder.