Receiving apparatus

1. A receiving apparatus comprising:

a receiver that receives serial data transmitted from a body-insertable apparatus, the serial data including a payload portion that indicates actual content of the serial data and an additional portion that is added to the payload portion as a signal indicating a position to start processing and contains attribute information that varies according to each type of body-insertable apparatus;

a signal processor that performs predetermined signal processing on the payload portion of the serial data;

an identifying unit that identifies a type of the body-insertable apparatus based on the attribute information contained in the additional portion of the serial data; and

a processing determining unit that selects a mode of signal processing performed on the received payload portion by the signal processor based on an identification result obtained by the identifying unit;

wherein the additional portion includes a preamble field for a preamble signal and a synchronization signal field for a synchronization signal, and the identifying unit identifies the type of the body-insertable apparatus with reference to the synchronization signal field that contains the attribute information in a pattern that varies according to each type of body-insertable apparatus; and

the receiving apparatus further comprising a plurality of synchronization detectors, each of which detects, in the synchronization signal field, a different pattern that varies according to each type of body-insertable apparatus, wherein the identifying unit identifies the type of the body-insertable apparatus based on which one of the synchronization detectors detects the synchronization signal filed.

2. The receiving apparatus according to claim 1 , wherein, after selecting a mode of signal processing, the processing determining unit locks the mode of signal processing not to be changed to another mode of signal processing.

3. The receiving apparatus according to claim 1 , wherein the receiver receives the serial data including image data from a first capsule endoscope being the body-insertable apparatus and a second capsule endoscope that is different from the first capsule endoscope in at least one of frame rate for capturing images and data structure of serial data to transmit, and

the processing determining unit outputs different clock frequencies for the first capsule endoscope and the second capsule endoscope.

4. The receiving apparatus according to claim 1 , wherein the payload portion includes an ID information field that contains ID information that varies according to each type of body-insertable apparatus, and

the identifying unit identifies the type of the body-insertable apparatus based on which one of the synchronization detectors detects the synchronization signal filed and the ID information contained in the ID information field.

5. The receiving apparatus according to claim 1 , wherein the additional portion includes a preamble field for a preamble signal and a synchronization signal field for a synchronization signal, and

the identifying unit identifies the type of the body-insertable apparatus with reference to the preamble field that contains as the attribute information a preamble signal with a frequency that varies according to each type of body-insertable apparatus.

6. The receiving apparatus according to claim 5 , further comprising a plurality of bandpass filters, each of which has a different bandpass frequency to detect a preamble signal of a different frequency that varies according to each type of body-insertable apparatus, wherein the identifying unit identifies the type of the body-insertable apparatus based on which one of the bandpass filters detects, in the preamble field, the preamble signal with a frequency that is allowed to pass through the bandpass filter.

7. The receiving apparatus according to claim 1 , wherein the processing determining unit changes, as the mode of signal processing, at least one of image size, frame rate, and image processing based on the identification result obtained by the identifying unit.