Systems and methods for synchronizing between an in-vivo device and a localization system

摘要

An in-vivo device may allocate a sensing window in a work cycle for sensing and processing localization signals to determine the location/orientation of the in-vivo device. The in-vivo device may use a timing unit to schedule transmission of data frames and the sensing of the localization signals relative to a reference time embedded in work cycles. The timing unit may produce a clock signal based on which the in-vivo device may measure time specifics, which define the sensing window, relative to the reference time. A receiver may use data embedded in data frames to restore the clock signal and the reference time, and, from them, and using identical or similar time specifics, generate a synchronization signal for a localization signals source (LSS) to enable the LSS to generate localization signals in synchronization with the sensing windows.

主权项

1. A method for timing sensing of localization signals by an in-vivo device, the method comprising:
by an in-vivo device operating according to a sensing time window within a work cycle of the in-vivo device, the in-vivo device timing the work cycle using a clock signal and having defined within the work cycle a reference time, performing during the work cycle:
(i) transmitting a data frame to a receiver, the data frame comprising data facilitating generation by the receiver of a synchronization signal for an external localization signals source based on a clock pulse, the reference time, and on time specifics of the sensing time window;(ii) measuring time elapsing from the reference time by using the clock signal;(iii) sensing, based on the elapsed time, during a time period complying with the time specifics of the sensing time window, one or more localization signals externally transmitted by the external localization signals source at times and for duration specified by the synchronization signal; and producing localization data representative of the sensed externally transmitted localization signals.