The present invention relates to a satellite antenna integrated time-synchronization device for generating a time-synchronization signal from a satellite signal received from a satellite, which includes a case, a 1PPS synchronization module which is disposed in the case and is configured to generate at least a 1PPS signal from the satellite signal, and a signal processing means which is disposed in the case and is configured to generate an IRIG signal and communication data using the 1PPS signal input from the 1PPS synchronization module.

A biological information measuring device includes a first processor including a first interface configured to acquire a biological signal output from a biological sensor and a second interface configured to acquire a satellite signal and a second processor configured to control at least one of a display section and a communication section and electrically connected to the first processor.

Disclosed is a system for dynamically modifying settings of a communication device based on an activity state of a user of the communication device. A data capturing module captures values corresponding to a plurality of physiological parameters associated to a plurality of activity states of a user. The values may be captured by using one or more wearable devices worn by a user. A configuration module enables the user to configure one or more rules and one or more events, to be triggered, corresponding to each of the one or more rules for modifying settings of the communication device. An activity state determining module determines an activity state, in real-time, from the plurality of activity states. An event triggering module triggers an event, of the one or more events, based on a rule configured corresponding to the activity state in order to dynamically modify the settings of the communication device.

Disclosed is a system for dynamically modifying settings of a communication device based on an activity state of a user of the communication device. A data capturing module captures values corresponding to a plurality of physiological parameters associated to a plurality of activity states of a user. The values may be captured by using one or more wearable devices worn by a user. A configuration module enables the user to configure one or more rules and one or more events, to be triggered, corresponding to each of the one or more rules for modifying settings of the communication device. An activity state determining module determines an activity state, in real-time, from the plurality of activity states. An event triggering module triggers an event, of the one or more events, based on a rule configured corresponding to the activity state in order to dynamically modify the settings of the communication device.

A clock generating circuit includes: a generating circuit, a reference circuit and an adjusting circuit. The generating circuit generates a clock signal. The reference circuit is coupled to the generating circuit, and generates a reference signal to the generating circuit according to the clock signal, wherein a frequency of the clock signal is varied according to the reference signal when the reference signal is received by the generating circuit. The adjusting circuit generates an adjusting signal and a trigger signal to the generating circuit, wherein the generating circuit refers to the trigger signal to decide whether to adjust the clock signal frequency according to the adjusting signal.

In a clock frequency doubler, an input clock feeds into a digital programmable delay circuit, and an inverted input clock feeds into another digital programmable delay. The outputs of these digital programmable delay circuits are combined with the input clock and inverse clock through AND gates in order to generate clock pulses at both the rising and falling edge of the clock. These signals are combined using an OR gate to provide an output clock signal with a frequency that is double the frequency of the input clock signal. The values of the control bits for the digital programmable delay circuit are determined in a time-to-digital conversion (TDC) circuit that includes a Successive Approximation Register (SAR). For every cycle of the clock, the SAR circuit successively sets the programmable delay control bits and compares the delay circuit output with the input clock to determine the value of the control bits.

A method includes receiving, by a recording device, an indication of an initializing time and receiving, by the recording device, an indication of a timing pace. The method also includes maintaining, by the recording device, an updated current time based on the initializing time and the timing pace and sensing, via a sensor of the recording device, a condition. The method further includes storing, in memory of the recording device, an indication of the condition and an associated indication of the updated current time. The indication of the updated current time corresponds to when the condition was sensed by the sensor.

The invention relates to a timepiece, in particular a wristwatch, comprising an electro-optical converter device with at least one electro-optical converter, an opto-electric converter device, a first signal path which leads into the opto-electric converter device via a first waveguide, a second signal path which leads into the opto-electric converter device directly or via a second waveguide, a control device, and a useful-signal generating device. The first signal path and the second signal path are designed such that the propagation time of the first clocked light signal in the first signal path and the propagation time of the second clocked light signal in the second signal path differ from each other.

The invention relates to a timepiece, in particular a wristwatch, comprising an electro-optical converter device with at least one electro-optical converter, an opto-electric converter device, a first signal path which leads into the opto-electric converter device via a first waveguide, a second signal path which leads into the opto-electric converter device directly or via a second waveguide, a control device, and a useful-signal generating device. The first signal path and the second signal path are designed such that the propagation time of the first clocked light signal in the first signal path and the propagation time of the second clocked light signal in the second signal path differ from each other.

The invention relates to a watch, in particular a wristwatch, comprising an electro-optical converter, an opto-electrical converter, a light wave guide, a useful signal generating device and a watch display device. The electro-optical converter is formed to generate and feed a clocked light signal into the light wave guide. A reflector is arranged at a reflector end of the light wave guide, through which the clocked light signal is reflectable back into the light wave guide. A decoupling device is arranged at a feeding end of the light wave guide and is formed to decouple the reflected clocked light signal into the opto-electrical converter. The opto-electrical converter is formed to generate an electrical signal based on the reflected clocked light signal. The watch comprises an electrical signal path between the opto-electrical converter and the electro-optical converter, wherein the electro-optical converter is controllable for generating the clocked light signal based on the electrical signal of the opto-electrical converter. The useful signal generating device is formed to generate a useful signal based on a frequency of the electrical signal, wherein the watch display device is formed to display the time based on the useful signal.