Abstract: To acquire much accurate image information having no noise, without increasing load in the post-processing of the image information, a receiving apparatus 3 includes: a synchronization signal detector 34 that detects a horizontal synchronization signal and a vertical synchronization signal; an image processor 35 that performs an image generation process of each frame based on the horizontal synchronization signal and the vertical synchronization signal detected by the synchronization signal detector 34; and an image deletion controller 36a that controls to delete an image of the current frame, when a horizontal synchronization signal within one frame detected by the synchronization signal detector 34 is not continuously detected by a first predetermined number or more, or when a horizontal synchronization signal within one frame detected by the synchronization signal detector 34 is not detected by a second predetermined number or more, or when a vertical synchronization signal detected by the synchronization

Abstract: An antenna unit includes a receiving antenna which is arranged on an outer surface of a subject and receives a radio signal transmitted at a first frequency from a body-insertable device inserted into an inside of the subject; a main body part which is attached to an outside of the subject. The main body part includes a frequency converter that converts the signal of the first frequency received by the receiving antenna into a signal of a second frequency and a transmitting antenna that transmits the signal of the second frequency as a radio signal. The antenna unit also includes a signal line which connects the receiving antenna and the main body part.

Abstract: A capsule endoscope 3 is inserted into a subject and transmits a capsule ID, which is received by an RF receiving unit 11 of a receiving apparatus 2. A capsule ID detecting circuit 19 detects the capsule ID. A control unit C recognizes a type of the capsule endoscope 3 based on the detected capsule ID, and changes over a threshold of received field strength of a receiving antenna. Thus, a content of processing for the capsule endoscope 3 is changed over, and a selection controller C1 selects a receiving antenna for an image receiving period from receiving antennas A1 to An.

Abstract: The invention provides a receiving apparatus that can suppress data loss when an antenna is detached. When a non-connection of an antenna is detected (step S103: Yes) after a recording operation is started (step S101: Yes), the receiving apparatus operates a warning unit to issue a warning to a user to the effect that the antenna is detached (step S105). Therefore, the receiving apparatus does not issue a warning (step S102) when there is no problem even when the antenna is detached, such as when an examination is not yet started (step S101: No). When the antenna is detached in a state that the use of the antenna is essential during an examination, the receiving apparatus notifies the user such as a subject about this fact, thereby prompting the user to correct the connection of the antenna. As a result, the data loss when the antenna is detached can be suppressed.

Abstract: A condition for determining that an examination by a capsule endoscope 3 (body insertable device) completes is set in advance. When a predetermined time period has passed since the examination starts, and when received electric-field strength of receiving antennas A1 to An detected during a predetermined time period is not higher than a predetermined value, the examination is determined to have been completed. An examination completion determining unit C1 determines whether the condition is satisfied or not. According to the result of determination, a notification controller C2 makes a notifying unit 15 notify that the examination completes, and a power supply controller C3 stop power supply to a radio unit 2a. Thus, unnecessary power consumption is prevented and the completion of the examination by the body insertable device is recognized.

Abstract: The present invention is intended to be able to ensure detecting whether an open-circuit occurs to a feeder within short time with simple configuration. A receiving apparatus 2 according to the present invention receives image information transmitted from a capsule endoscope 3 through a coaxial cable and a receiving antenna selected and switched to from among coaxial cables 9a to 9d connected to receiving antennas 8a to 8d, respectively by a changeover switch 20. The receiving apparatus 2 includes a changeover switch 22, an open-circuit detecting circuit 23, and a control unit 26. The changeover switch 22 branches the coaxial cables 9a to 9d near the changeover switch 20, and selects and switches to one of the branched coaxial cables.

Abstract: In order to maintain stability when connected, a cradle 27 includes an engagement part 33 for engaging with regard to a unit connection part which allows an antenna unit having at least a receiving antenna to be detachably connected to a receiving unit constituting a receiving apparatus together with the antenna unit; and a connecting terminal 31 provided so as to be communicably connected to a connector provided to the receiving unit only when the unit connection part and the engagement part are in engaged state.

Abstract: An in-body information acquiring apparatus includes a function executing unit that realizes a predetermined function inside a body of a patient. A power-supply circuit includes a power unit that includes a cell and that outputs a first current and a first voltage; and a converter that converts the first current to a second current, which is a current required to operate the function executing unit for a predetermined time, and converts the first voltage to a second voltage, which is a voltage required to operate the function executing unit.

Abstract: Each of detecting circuits 36a, 36d, 36f, and 36h detects a key signal such as a horizontal synchronization signal, a vertical synchronization signal, a capsule ID, a WB coefficient, and error information, i.e., a key signal superposed on RF signals received by an RF receiving unit 33. Each of determining units 36b, 36c, 36e, 36g, and 36i determines whether an image is valid or invalid based on the result of detection. A recording deciding unit 36k decides whether to record the image information in a storage unit 35 or not based on the result of determination. Thus, a receiving apparatus 3 can stop recording the image information received when a trouble occurs, thereby preventing defective images from mixing into the recorded image information, and preventing a recorded image size from becoming large, whereby necessary images can be recorded within a predetermined examination time.

Abstract: A receiving apparatus is for receiving radio signals including image information transmitted by a mobile transmitting device through a plurality of receiving antennas. The receiving apparatus includes a plurality of frequency converters for outputting modulated signals obtained by converting respective radio signal received through the plurality of receiving antennas by different modulation frequencies; a superposing unit for superposing each of the modulated signals generated by the plurality of frequency converters on a frequency axis; a cable with a single coaxial cable where each of the modulated signals superposed by the superposing unit is transmitted; and a receiving unit for demodulating each modulated signal input through the cable to receive and output the image information.

Abstract: The present invention relates to a compact imaging apparatus. A memory in which one-line data is temporarily stored is provided between an analog processing system and a digital processing system. The analog processing system performs a series of processing from obtaining a pixel signal with an image pickup element to conversion of the pixel signal into digital data, and the digital processing system performs signal processing of the digital data into predetermined imaging data. A controller exclusively controls a one-line analog system operation performed by the analog processing system and a one-line digital system operation performed by the digital processing system. The controller operates the analog processing system with a maximum-speed clock which is possessed by the analog processing system, and the controller operates the digital processing system with a clock corresponding to a frequency determined by a bandwidth of a transmission system which transmits the imaging data.

Abstract: A receiving apparatus 3 includes a receiving circuit 22 which performs reception processing such as demodulation of radio signals received by one of receiving antennas 6a to 6h, an image processing unit 26 which reconfigures image data based on original signals obtained by the reception processing, and a timing controller 28 which controls timing of processing operations of the receiving circuit 22 and the image processing unit 26 so that the processing operations are not performed simultaneously. Since the processing operation of the receiving circuit 22 and the processing operation of the image processing unit 26 are controlled so as not to overlap with each other, noises generated by the processing operation of one element can be prevented from negatively affecting the processing operation of the other element. Thus, mutual interference between the operation of a receiving mechanism and the operation of a signal processing mechanism can be suppressed while an increase in size of the apparatus is prevented.

Abstract: In a capsule endoscope illuminating units are disposed around an image capturing unit in such a manner that an optical axis of the illuminating units do not intersect with an optical axis of the observation unit, and illumination areas of the illuminating units overlap at substantially a central portion of an image capturing area of the image capturing unit.

Abstract: A remaining-power-amount recognizing circuit 20 provided within a capsule endoscope 2 recognizes a remaining power amount of a body-insertable apparatus (capsule endoscope 2), and superimposes information of the remaining power amount on a transmission signal. An RF transmitting unit 15 of the capsule endoscope 2 transmits the superimposed information to a receiving apparatus 3 at the outside of the subject. A remaining-power-amount detecting circuit 48 provided within an external device 32 of the receiving apparatus 3 detects the information of the remaining power amount, and displays the detected information on a display unit 51 provided within the external device 32. With this arrangement, a user can promptly recognize a remaining power amount of the capsule endoscope 2.

Abstract: To achieve a moving-state detecting apparatus and a moving-state detecting system that detect a moving state of a body-insertable apparatus such as a capsule endoscope within a subject, a body-insertable apparatus (2) includes a sensor signal transmitter that transmits a sensor signal which is attenuated according to a propagation distance. A moving-state detecting apparatus (3) includes receiving antennas (7a to 7h) that receive sensor signals, and a moving-state calculator that calculates a moving state of the body-insertable apparatus (2), based on received strength of sensor signals received by the receiving antennas (7a to 7h).

Abstract: To provide a transmitting apparatus, a receiving apparatus, and an in-vivo information acquiring system that enable to acquire image information corresponding to one image, by assuredly synchronizing between a capsule endoscope and the receiving apparatus. According to the present invention, a capsule endoscope 2 that transmits a radio signal including at least an image signal S to the receiving apparatus includes a signal processor 12 that outputs the image signal S, a reference signal generator 24 that generates a reference signal including a different signal level and outputs a reference signal component D including at least the reference signal, an inserting unit 14 that inserts the reference signal component D into a predetermined heading period of the image signal S and at least a portion of a blanking period in which a signal component does not exist, and a transmitting unit 15 that wirelessly transmits the image signal S output from the inserting unit 14 to an outside.

Abstract: To realize a receiving system that can excellently receive radio signals before and after a body insertable device, which is a radio signal source, is inserted into a subject, the receiving system has a first receiving antenna (1), a second receiving antenna (2), and a receiving apparatus (3). The first receiving antenna (1) is used when the body insertable device is outside the subject. The second receiving antenna (2) is used when the body insertable device is inserted into the subject. The receiving apparatus (3) performs a receiving processing on radio signals received through the first receiving antenna (1) or the second receiving antenna (2).

Abstract: A receiving device is capable of receiving a radio signal transmitted from a body-insertable device moving inside a subject and allows the subject to carry. The receiving device also includes a radio communication interface that enables radio communication via a radio communication network with a communication terminal device having a display unit capable of displaying an image.