Abstract: A system, a wearable device, and a method are provided which can increase the accuracy of physiological metrics while detecting if the patient ingested digital medicine and/or improve performance of the wearable device. The wearable device can comprise machine executable instructions that when executed by the processor, cause the processor to perform various algorithms, such as, for example, at least one of a step count algorithm, a body angle algorithm, a heart rate algorithm, a peak finder algorithm, an adaptive thresholding algorithm, a heart rate variability algorithm, a R-R cleaning Algorithm, a deltaR-R cleaning algorithm, a merge twin interval algorithm, a split tall intervals algorithm, an absorb short intervals algorithm, a bimodal detection algorithm, and a resting algorithm.

Abstract: An interposer for coupling an optical conduit to an optical component, said interposer comprising: (a) an optical component; (b) a first lens component having a first lens; (c) a second lens component having a second lens, said first and second lenses being configured to define an expanded-beam coupling therebetween; (d) at least one reflective surface optically coupled with said second lens; (e) a first optical path at least partially defined between said optical component and said first lens to accommodate a diverging light beam from said optical component to said first lens; (f) a second optical path at least partially defined between said second lens and said at least one reflective surface to accommodate a converging light beam from said second lens and said at least one reflective surface; and (g) a separable interface along said second optical path or at said expanded-beam coupling.

Abstract: An interposer for coupling an optical conduit to an optical component, said interposer comprising: (a) an optical component; (b) a first lens component having a first lens; (c) a second lens component having a second lens, said first and second lenses being configured to define an expanded-beam coupling therebetween; (d) at least one reflective surface optically coupled with said second lens; (e) a first optical path at least partially defined between said optical component and said first lens to accommodate a diverging light beam from said optical component to said first lens; (f) a second optical path at least partially defined between said second lens and said at least one reflective surface to accommodate a converging light beam from said second lens and said at least one reflective surface; and (g) a separable interface along said second optical path or at said expanded-beam coupling.

Abstract: Systems, methods, and apparatuses are presented for resolving any interference, noise, and/or collisions caused by two or more ingestible event markers (IEMs) transmitting simultaneously or concurrently. Methods include techniques from the perspective of the IEM for randomly varying signal transmission characteristics in order to avoid collisions with other concurrently transmitting IEMs. Methods also include techniques from the perspective of a receiver for receiving multiple transmission signals from multiple IEMs and for resolving any interference or signal collisions.

Abstract: An optical assembly comprising: (a) a substrate having a first planar surface; (b) an optical component connected to the substrate and having a second planar surface parallel to the first surface and at least one first optical axis; (c) a plurality of optical fiber stubs having a certain diameter and being disposed at least partially between the substrate and the optical component; (d) at least one of the substrate or the optical component having one or more grooves on the first or second surfaces, respectively, such that each groove is configured to receive one of the plurality of fiber stubs such that each of the fiber stubs protrudes a first distance from the first or second surface to space the first surface the first distance from the second surface; and (e) a least one optical conduit having a second optical axis, the optical conduit being disposed on the first or second surface such that the second optical axis is optically aligned with the first optical axis.

Abstract: Low resolution information streams are combined in a broadcast carrier and broadcast along with full resolution information streams down a television broadcast network. The low resolution streams may be decoded and displayed in mosaic display with multiple images from separate low resolution streams simultaneously displayed. When a user selects a particular channel to be displayed, a low resolution stream associated with the selected channel is displayed (video and audio) while the full resolution stream is processed for display. Once the full resolution stream is available for display, it replaces the low resolution stream. The user perceives a much lower channel change time by viewing the low resolution stream during the channel change delay. The low resolution stream may also be provided directly to a portable media player (PMP) in a low resolution format required for display by the PMP.

Abstract: Low resolution information streams are combined in a broadcast carrier and broadcast along with full resolution information streams down a television broadcast network. The low resolution streams may be decoded and displayed in mosaic display with multiple images from separate low resolution streams simultaneously displayed. When a user selects a particular channel to be displayed, a low resolution stream associated with the selected channel is displayed (video and audio) while the full resolution stream is processed for display. Once the full resolution stream is available for display, it replaces the low resolution stream. The user perceives a much lower channel change time by viewing the low resolution stream during the channel change delay. The low resolution stream may also be provided directly to a portable media player (PMP) in a low resolution format required for display by the PMP.

Abstract: The present invention provides a solution to the needs described above through a method and apparatus for reducing echo and noise. The apparatus includes a microphone array for receiving and audio signal, the audio signal including a voice signal component and a noise signal component. The apparatus further includes a voice processing path having an input coupled to the microphone array and a noise processing path having an input coupled to the microphone array. The voice processing path is adapted to detect voice signals and the noise processing path is adapted to detect noise signals. A first echo controller is coupled to the voice processing path and a second echo controller is coupled to the noise processing path. A noise reducer is coupled to the output of the first echo controller and second echo controller.

Abstract: An audio limiting circuit capable of satisfying frequency dependent limits and time domain constraints, is disclosed. In one illustrative embodiment, an input node receives an unattenuated input signal and a system modeling filter predicts the amount, if any, by which the sound pressure level that would be generated by an acoustic transducer in response to the unattenuated input signal, would exceed one or more predetermined limits. In that embodiment, an energy detector separates the excess predicted sound pressure level into one or more frequency bands and calculates the average acoustic energy associated with each band. A gain logic block determines an attenuation factor based on whether one or more of the predetermined limits has been exceeded and the attenuation factor values are smoothed to minimize abrupt changes to the unattenuated input signal. A delay buffer delays the unattenuated input signal values.

Abstract: An audio limiting circuit capable of satisfying frequency dependent limits and time domain constraints, is disclosed. In one illustrative embodiment, an input node receives an unattenuated input signal and a system modeling filter predicts the amount, if any, by which the sound pressure level that would be generated by an acoustic transducer in response to the unattenuated input signal, would exceed one or more predetermined limits. In that embodiment, an energy detector separates the excess predicted sound pressure level into one or more frequency bands and calculates the average acoustic energy associated with each band. A gain logic block determines an attenuation factor based on whether one or more of the predetermined limits has been exceeded and the attenuation factor values are smoothed to minimize abrupt changes to the unattenuated input signal. A delay buffer delays the unattenuated input signal values.

Abstract: An auditory user interface provides auditory feedback concerning variable parameters of a device. Auditory user interface elements indicate modes corresponding to control functions and variable parameters. Additional auditory user interface elements indicate particular values for the parameters. Each control function is distinguished by particular auditory characteristics, such as distinct musical scales, so that the user can easily recognize which mode is active and discern the current value for the parameter corresponding to the mode. Center values and limit values are denoted by distinctive auditory elements.