Patent
Wide capture range circuitry
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TLDR
In this paper, the authors propose a method for synchronizing operating speeds of signal processing devices to the data rate of a signal, which applies to Compact Disk (CD) and Digital Versatile Disk (DVD) drives to be used with portable devices.Abstract:
Circuitry and method for synchronizing operating speeds of signal processing devices to the data rate of a signal. It applies in particular to Compact Disk (CD) and Digital Versatile Disk (DVD) drives to be used with portable devices. The circuitry does not require clock synchronization speeds in excess of the instantaneous data rate used by the disk drive and also reduces power consumption.read more
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Patent
Pharma-informatics system
TL;DR: In this article, the authors describe a system that allows for the detection of actual physical delivery of a pharmaceutical agent to a body using an identifier and an active agent, which finds use in a variety of different applications, including monitoring of therapeutic regimen compliance, tracking the history of pharmaceutical agents, etc.
Patent
Ingestible Event Marker Systems
Timothy Robertson,George Savage,Mark Zdeblick,Yashar Behzadi,Benedict Costello,Jeremy Frank,Hooman Hafezi,Tariq Haniff,David O'reilly +8 more
TL;DR: In this article, an ingestible event marker (i.e., an IEM) and a personal signal receiver are provided, which can be configured to be associated with a physiological location, e.g., inside of or on the body, and to receive a signal the IEM.
Patent
In-body device having deployable antenna
Timothy Robertson,Mark Zdeblick +1 more
TL;DR: In this paper, deployable antennas for in-body devices, such as implantable and ingestible devices, are described, and methods of making and using the devices of the invention are presented.
Patent
Communication system using an implantable device
Todd Thompson,Mark Zdeblick,Yashar Behzadi,Benedict Costello,Timothy Robertson,Hooman Hafezi,George Savage +6 more
TL;DR: In this article, an implantable device that can detect high and low frequency current signature is presented. But it is not shown how to use it to communicate with a communication device that includes a conductive element, an electronic component and a partial power source in the form of dissimilar materials.
References
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Patent
Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines
TL;DR: In this paper, the stator response at the signal frequency is detected to provide a correlation between the response at a signal frequency and the rotor position by a heterodyne detection process, by mixing signals at signal frequency with the measured stator currents, and filtering the mixed signals to isolate the signal indicative of rotor position.
Patent
Signal decoding apparatus and method
Masaharu Ogawa,Yoshiki Nakajima,Osamu Ito,Teruo Furukawa,Kyosuke Yoshimoto,Kunimaro Tanaka,Masafumi Ototake,Minoru Ozaki +7 more
TL;DR: In this paper, a phase corrector is provided at the optical disc driving apparatus so as to delay the fixing data signal reproduced from an optical disc, whereby a phase shift between the reproduced data signal and the reproduced clock signal can be corrected to an optimum quantity.
Patent
Timing recovery on longitudinal magnetic tape record channels based on capstan velocity feed forward
TL;DR: In this paper, a scaling circuit is provided by a frequency-tovoltage converter followed by a voltage-to-frequency converter, the output signal providing a demodulation clock having a multiplied frequency proportional to the data rate reproduced from the tape.