Receiving apparatus and capsule endoscope system

摘要

A receiving apparatus includes: a plurality of receiving antennas capable of receiving transmission data which is wirelessly transmitted frame by frame and includes a preamble at a head; a switching unit that selectively switches a connection to any one of the plurality of receiving antennas; a preamble detector that detects the preamble of the transmission data output via the receiving antenna which is connected by the switching unit; and a control unit that controls whether or not to cause the preamble detector to be in a sleep condition based on a detection result by the preamble detector.

主权项

1. A receiving apparatus for receiving transmission data, the receiving apparatus comprising:
a plurality of receiving antennas capable of receiving the transmission data from a capsule medical device which is wirelessly transmitted frame by frame from the capsule medical device, the transmission data including a preamble at a head and a vertical synchronization signal at a head of main data following the preamble; a switching unit that selectively switches a connection to any one of the plurality of receiving antennas based on a signal strength of each of the plurality of receiving antennas; a preamble detector that detects the preamble of the transmission data output via a receiving antenna which is connected by the switching unit; a vertical synchronization signal detector that detects the vertical synchronization signal of the transmission data output via the receiving antenna which is connected by the switching unit; and a control unit for controlling the switching unit, preamble detector and vertical synchronization detector and that controls whether or not to cause the preamble detector to be in a sleep condition based on a detection result by the preamble detector; wherein when the preamble detector detects the preamble, the control unit causes the vertical synchronization signal detector to detect the vertical synchronization signal of the transmission data, and thereafter causes the preamble detector to shift to the sleep condition to suppress power consumption.