Patent ID: 8663094

Claim:
An in-vivo information acquiring system comprising: an in-vivo information acquiring apparatus introduced into an object to be examined, comprising: an in-vivo information acquiring section that acquires information inside the object to be examined; a power supply source that supplies power to be used to drive the in-vivo information acquiring section; an external signal detection section that detects an external signal and outputs an internal signal according to the detected external signal; a power switch that controls a power supply from the power supply source to the in-vivo information acquiring section; and a power supply control section that causes the power switch to perform a toggle operation according to the internal signal inputted from the external signal detection section, and an external signal generating apparatus disposed outside the in-vivo information acquiring apparatus, comprising: an external signal generating section that generates the external signal; an operation section that is an operation switch which outputs an operation signal instructing the external signal generating section to generate the external signal according to an operation, the operation switch outputting the operation signal when a pressing operation of the operation switch is performed, and stopping output of the operation signal when the pressing operation is released, to thereby output the operation signal in pulses; and a masking section that is a pulse width extension section which extends a pulse width of the operation signal from the operation section to the external signal generating section for a predetermined period.