Abstract:
A method for indicating an acoustic location and a recording medium therefor, a method for receiving a sample from an acoustic source and a recording medium therefor, and an acoustic receiver are provided to determine the acoustic location by receiving a time stamped acoustic source sample. A method for indicating an acoustic location includes the steps of: sampling an acoustic source from a plurality of acoustic receiver(315); at the acoustic receiver, time-stamping each acoustic sample received in the plurality of acoustic receiver by using a system time(320); at each acoustic receiver, transmitting the time-stamped acoustic sample to a central controller(325); and at the central controller, determining the acoustic location in response to the receiving of the time stamped acoustic source sample from the plurality of receivers. Each acoustic receiver is synchronized with the system time by using a precision time protocol(330).
Abstract:
PROBLEM TO BE SOLVED: To trigger an event in a fraction of a clock cycle. SOLUTION: A trigger circuit (200) can have two or more input circuits for outputting event signals. The event signals are received by one of two or more delay circuits (204) that trigger the event signal (118) at given phase of the clock cycle, by transferring the event signal from the first clock region to another clock region. By triggering event with phase division, the trigger circuit (200) can output the signal at a speed higher than the clock cycle. COPYRIGHT: (C)2007,JPO&INPIT