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公开(公告)号：US20180152252A1
公开(公告)日：2018-05-31
申请号：US15577487
申请日：2016-04-15
Applicant: ARM LIMITED
Inventor： Paul Nicholas WHATMOUGH , George SMART , Shidhartha DAS , David Michael BULL
IPC: H04B13/00 , H04B1/3827
CPC classification number: H04B13/005 , H04B1/385
Abstract: A device comprises a coupling configured to couple signals to and from a communications path including at least a part of a human or animal body; a data transmitter coupled to the coupling and configured to transmit, from time to time, a data signal of at least a predetermined temporal duration via the communications path; and a data receiver coupled to the coupling and configured to detect the presence of a signal on the communications path at sets of one or more successive detection instances disposed between successive transmissions of the data signal by the data transmitter, the data receiver being configured so that the successive detection instances of a set are temporally separated by no more than the predetermined temporal duration; the device being configured to initiate a processing operation in response to a detection by the data receiver of the presence of a signal on the communications path.
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公开(公告)号：US20170177055A1
公开(公告)日：2017-06-22
申请号：US15308658
申请日：2015-03-13
Applicant: ARM LIMITED
Inventor： Paul Nicholas WHATMOUGH , David Michael BULL , Shidhartha DAS
Abstract: An electronic device (20) has a clock path (24) for propagating a clock signal and a clock propagating element (26) on the clock path. An analogue element (30) coupled to the clock path (24) varies, in dependence on an analogue level of a first signal (32), a switching delay for the clock propagating element (26) to trigger a transition of the clock signal. The first signal is a digitally sampled signal. This provides a mechanism for providing a fast reduction in clock frequency even if the first signal is a metastable signal, which is useful for avoiding errors causes by voltage drops.
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