Abstract: To enable detection of a plurality of capsule ingestions, the ingestible capsules include a transmitter and processing hardware to generate and transmit the signals. Each ingestible capsule obtains a serial number for distinguishing between the ingestible capsules, and generates a signal indicating that the capsule has been ingested. The signal includes a series of pulses having a particular pulse space and indicating the serial number. Each ingestible capsule transmits the signal to a receiver via the transmitter, where each ingestible capsule is identified based on at least one of: the particular pulse space and the serial number for the ingestible capsule.

Abstract: A compression garment may be used for measuring fluid buildup in a subcutaneous tissue space. The compression garment may include a processor, an emitter, and a detector. The emitter and the detector are coupled to the processor. The emitter may be configured to emit a signal into a subcutaneous tissue space of a subject. The signal may be reflected by the subcutaneous tissue space. The detector may be configured to receive the reflected signal. The processor may be configured to determine a fluid status in the subcutaneous tissue space. The fluid buildup in the subcutaneous tissue space may be based on an energy level of the reflected signal.

Abstract: An aspect of the invention is a liquid sensor having a galvanically energizable power source capable of activating a remotely detectable signal in response to liquid. In a preferred embodiment, a liquid sensor includes a plurality of electrodes, a circuit, and a transmitter thereon. The electrodes are coupled to generate electrical power when in contact with liquid. The circuit is electrically connected to the electrodes so as to be activated by the electrical power, detect an electrical parameter of the electrical power, and generate a plurality of data packets indicating a degree of wetness corresponding to the detected electrical parameter. The transmitter is electrically coupled to the circuit to receive the plurality of data packets and transmit representations of the plurality of data packets as electromagnetic signals. Other aspects include a liquid absorbent wetness sensor and a computer-based wetness monitoring system, and method of detecting liquid.

Abstract: A compression garment may be used for measuring fluid buildup in a subcutaneous tissue space. The compression garment may include a processor, an emitter, and a detector. The emitter and the detector are coupled to the processor. The emitter may be configured to emit a signal into a subcutaneous tissue space of a subject. The signal may be reflected by the subcutaneous tissue space. The detector may be configured to receive the reflected signal. The processor may be configured to determine a fluid status in the subcutaneous tissue space. The fluid buildup in the subcutaneous tissue space may be based on an energy level of the reflected signal.

Abstract: Methods and systems may be used for measuring fluid status in a subcutaneous tissue space. Systems may include a wearable device or a diagnostic tool. The device may include a processor, an emitter, and a detector. The emitter and the detector are coupled to the processor. The emitter may be configured to emit a signal into a subcutaneous tissue space of a subject. The signal may be reflected by the subcutaneous tissue space. The detector may be configured to receive the reflected signal. The processor may be configured to determine a fluid status in the subcutaneous tissue space. The fluid status in the subcutaneous tissue space may be based on an energy level of the reflected signal.

Abstract: Methods and systems may be used for measuring fluid status in a subcutaneous tissue space. Systems may include a wearable device or a diagnostic tool. The device may include a processor, an emitter, and a detector. The emitter and the detector are coupled to the processor. The emitter may be configured to emit a signal into a subcutaneous tissue space of a subject. The signal may be reflected by the subcutaneous tissue space. The detector may be configured to receive the reflected signal. The processor may be configured to determine a fluid status in the subcutaneous tissue space. The fluid status in the subcutaneous tissue space may be based on an energy level of the reflected signal.

Abstract: An electronic drug compliance monitoring system and associated methods utilize a pill having an electronic transmission capability and external means for receiving that transmission to sense the presence of the pill in the patient's body or digestive tract.

Abstract: An electronic drug compliance monitoring system and associated methods utilize a pill having an electronic transmission capability and external means for receiving that transmission to sense the presence of the pill in the patient's body or digestive tract.

Abstract: An aspect of the invention is a liquid sensor having a galvanically energizable power source capable of activating a remotely detectable signal in response to liquid. In a preferred embodiment, a liquid sensor includes a plurality of electrodes, a circuit, and a transmitter thereon. The electrodes are coupled to generate electrical power when in contact with liquid. The circuit is electrically connected to the electrodes so as to be activated by the electrical power, detect an electrical parameter of the electrical power, and generate a plurality of data packets indicating a degree of wetness corresponding to the detected electrical parameter. The transmitter is electrically coupled to the circuit to receive the plurality of data packets and transmit representations of the plurality of data packets as electromagnetic signals. Other aspects include a liquid absorbent wetness sensor and a computer-based wetness monitoring system, and method of detecting liquid.

Abstract: An aspect of the invention is a liquid sensor having a galvanically energizable power source capable of activating a remotely detectable signal in response to liquid. In a preferred embodiment, a liquid sensor includes a plurality of electrodes, a circuit, and a transmitter thereon. The electrodes are coupled to generate electrical power when in contact with liquid. The circuit is electrically connected to the electrodes so as to be activated by the electrical power, detect an electrical parameter of the electrical power, and generate a plurality of data packets indicating a degree of wetness corresponding to the detected electrical parameter. The transmitter is electrically coupled to the circuit to receive the plurality of data packets and transmit representations of the plurality of data packets as electromagnetic signals. Other aspects include a liquid absorbent wetness sensor and a computer-based wetness monitoring system, and method of detecting liquid.

Abstract: Ingestible bio-telemetry communication network and associated systems are described. The communication network can include one or more ingestible bio-telemetry tags; and a reader, wherein each of the one or more ingestible bio-telemetry tags generates an out-link signal comprising, for each bit of data in a frame, a pulse reverse keyed symbol. Multiple ingestible bio-telemetry tags can be managed at the same time by allowing the frequency of the transmit carrier signal to change, or “hop” to different frequencies so as to minimize likelihood of collision. A reader can identify the proper frequency either by a signal from the tags indicated the frequency of the next hop or, when no bi-directional communication is available, by deducing the carrier signal frequency from the start bits of a received frame from the tag and scanning for the shifted carrier signal frequency within a tolerance of the deduced carrier signal frequency.

Abstract: A method of monitoring a patient's compliance with a medication program includes transmitting a first signal from an electronic ingestible medication delivery device located within a patient's body, the signal including information about a physiological parameter of the patient. The signal is detected with an electronic reader located outside the patient's body. A second signal is provided to the reader from a different source than the delivery device. The second signal includes information about the same physiological parameter of the patient. Related systems are also described.

Abstract: An aspect of the invention is a liquid sensor having a galvanically energizable power source capable of activating a remotely detectable signal in response to liquid. In a preferred embodiment, a liquid sensor includes a plurality of electrodes, a circuit, and a transmitter thereon. The electrodes are coupled to generate electrical power when in contact with liquid. The circuit is electrically connected to the electrodes so as to be activated by the electrical power, detect an electrical parameter of the electrical power, and generate a plurality of data packets indicating a degree of wetness corresponding to the detected electrical parameter. The transmitter is electrically coupled to the circuit to receive the plurality of data packets and transmit representations of the plurality of data packets as electromagnetic signals. Other aspects include a liquid absorbent wetness sensor and a computer-based wetness monitoring system, and method of detecting liquid.

Abstract: A device is provided for shielding a contactless smartcard or RFID tag from reading. The device can include a first panel for holding and presenting a contactless smartcard, a second panel comprising a shielding material that prevents unauthorized reading of information when the contactless smartcard is in proximity to or resting on the second panel, and a hinge coupling the first panel and the second panel. The hinge keeps the device closed for preventing unauthorized reading, and open when a force is applied for allowing authorized reading. The contactless smartcard can be inserted between the first panel and the second panel.

Abstract: A device is provided for shielding a contactless smartcard or RFID tag from reading. The device can include a first panel for holding and presenting a contactless smartcard, a second panel comprising a shielding material that prevents unauthorized reading of information when the contactless smartcard is in proximity to or resting on the second panel, and a hinge coupling the first panel and the second panel. The hinge keeps the device closed for preventing unauthorized reading, and open when a force is applied for allowing authorized reading. The contactless smartcard can be inserted between the first panel and the second panel.