Abstract: A system for monitoring physiological condition includes a device for collecting readings and a monitoring device. The collecting device includes a number of collecting units configured to be selected human body. Based on different requirements, different numbers of collecting units can be selected to be attached to different portions of the living subject to collect readings. The selected collecting units transmit the readings to the monitoring device via wireless communication networks. The monitoring device can analyze the readings and generate a report.

Abstract: A device for measuring blood measure measures variations in electrical charges on the body as a result of heart activity. A method using the same is also described. The method acquires ECG signal collected by a collection unit of the device for measuring blood measure, processes the ECG signal, extracts feature from the ECG signal, and computes blood pressure according to the feature extracted from the ECG signal.

Abstract: A wearable electronic device includes a signal capturing assembly and a holder. The holder includes a case defining a receiving slot configured for receiving the signal capturing assembly, a first connecting electrode, and a second connecting electrode. The first and second connecting electrodes protrude from a bottom surface of the case and are electronically connected to the signal capturing assembly. The first and second connecting electrodes detect vital signs of a user and transmit the detected vital signs to the signal capturing assembly.

Abstract: A wearable electronic device includes a signal capturing assembly and a wearable assembly. The signal capturing assembly is configured for detecting and processing vital signs from a user and defines at least one port. The signal capturing assembly includes a base, a first cover, a second cover, a third cover, a first electrode, and a core module. The first, second, third covers cover the base to form a receiving chamber to accommodate the core module. The first electrode is extended through the base and electronically connected to the core module The wearable assembly is detachably connected to the signal capturing assembly through the at least one port.

Abstract: A wearable electronic device includes a signal capturing assembly and a holder. The holder includes a case defining a receiving slot configured for receiving the signal capturing assembly, a first connecting electrode, and a second connecting electrode. The first and second connecting electrodes protrude from a bottom surface of the case and are electronically connected to the signal capturing assembly. The first and second connecting electrodes detect vital signs of a user and transmit the detected vital signs to the signal capturing assembly.

Abstract: A wearable electronic device includes a signal capturing assembly and a wearable assembly. The signal capturing assembly is configured for detecting and processing vital signs from a user and defines at least one port. The signal capturing assembly includes a base, a first cover, a second cover, a third cover, a first electrode, and a core module. The first, second, third covers cover the base to form a receiving chamber to accommodate the core module. The first electrode is extended through the base and electronically connected to the core module The wearable assembly is detachably connected to the signal capturing assembly through the at least one port.

Abstract: A method for securing data for an electronic apparatus includes flagging data stored in the electronic apparatus, setting a plurality of security functions corresponding to the flagged data, defining a plurality of hotkeys corresponding to the security functions, and defining a hold-down time for each of the hotkeys. In operation, a user may have to input one or more hotkeys in order to access various functions of the electronic apparatus.

Abstract: A method for securing data for an electronic apparatus includes flagging data stored in the electronic apparatus, setting a plurality of security functions corresponding to the flagged data, defining a plurality of hotkeys corresponding to the security functions, and defining a hold-down time for each of the hotkeys. In operation, a user may have to input one or more hotkeys in order to access various functions of the electronic apparatus.

Abstract: An RF transceiver module for wireless communication devices includes a multi-layered substrate, an RF transceiver IC mounted on the multi-layered substrate for receiving and transmitting voice or data signals, at least one band selection filter mounted on the multi-layered substrate for filtering received RF signals, an antenna switch integrated in the multi-layered substrate which can be switched to transmit RF signals generated by the power amplifiers to the external antenna or to receive RF signals from an external antenna to the RF transceiver IC through the band selection filter, a plurality of passive devices embedded in the multi-layered substrate, and wiring embedded in the multi-layered substrate for electrically connecting the passive devices, the RF transceiver IC, and the band selection filter.

Abstract: A lumped-element diplexer formed in a multi-layered substrate includes a high-pass filter circuit, a low-pass filter circuit, and a ground plane, the elements of the filter circuits being disposed as follows: a first capacitor plate on a first layer of the substrate connected to a first port and a first inductor plate on a third layer, a second capacitor plate on a second layer of the substrate connected to the first inductor plate and a third capacitor plate on a fourth layer, the third capacitor plate in turn being connected to a second port. A fourth capacitor plate on a fifth layer of the substrate is connected to a second inductor plate on a seventh layer, the second inductor plate in turn being connected to the ground plane on a zeroth layer. A fifth capacitor plate on a sixth layer of the substrate is connected to a third port.

Abstract: A lumped-element transmission line is formed in a multi-layered substrate. A mutual inductance between first and second inductors in a T-equivalent circuit model is enlarged to a designed positive value to widen the application frequency bandwidth of the transmission line. The second inductor is electrically connected to the first inductor in series at one end. The first and second inductors are spiral in shape and the orientations of the first inductor and the second inductor are the same so that the spirals progress in the same sense such that a mutual inductance between the first and second inductors is positive and equals a first value. A first capacitor is electrically connected to ground at a first end of the first capacitor, and a second end of the first capacitor is electrically connected to the end of the second inductor at which the second inductor in connected to the first inductor.

Abstract: A lumped-element low-pass filter is formed in a multi-layered substrate. A negative mutual inductance between two inductors is adjusted to a designed value and utilized to improve the rejection in the stopband of the low-pass filter. The two inductors are spiral in shape and the orientations of the first inductor and the second inductor are of opposite sense such that a mutual inductance between the first inductor and the second inductor is negative and equals a designed value. A first capacitor and a second capacitor are shunt-connected to the first and the second inductor respectively to form the elliptic-type filter. A third capacitor is electrically connected to ground at its first end, and electrically connected to the end of the second inductor at which the second inductor in electrically connected to the first inductor in series at its second end.

Abstract: A lumped-element diplexer formed in a multi-layered substrate includes a high-pass filter circuit, a low-pass filter circuit, and a ground plane, the elements of the filter circuits being disposed as follows: a first capacitor plate on a first layer of the substrate connected to a first port and a first inductor plate on a third layer, a second capacitor plate on a second layer of the substrate connected to the first inductor plate and a third capacitor plate on a fourth layer, the third capacitor plate in turn being connected to a second port. A fourth capacitor plate on a fifth layer of the substrate is connected to a second inductor plate on a seventh layer, the second inductor plate in turn being connected to the ground plane on a zeroth layer. A fifth capacitor plate on a sixth layer of the substrate is connected to a third port.

Abstract: A lowpass filter formed in a multi-layered substrate includes a first capacitor formed on at least one layer of the multi-layered substrate and being electrically connected to a first node, a first inductor being electrically connected to the first capacitor at the first node, and a second inductor being electrically connected to the first inductor and the first capacitor at the first node. In the lowpass filter, negative mutual inductance exists between the first inductor and the second inductor.

Abstract: A lowpass filter formed in a multi-layered substrate includes a first capacitor formed on at least one layer of the multi-layered substrate and being electrically connected to a first node, a first inductor being electrically connected to the first capacitor at the first node, and a second inductor being electrically connected to the first inductor and the first capacitor at the first node. In the lowpass filter, negative mutual inductance exists between the first inductor and the second inductor.

Abstract: A lumped-element transmission line is formed in a multi-layered substrate. A mutual inductance between first and second inductors in a T-equivalent circuit model is enlarged to a designed positive value to widen the application frequency bandwidth of the transmission line. The second inductor is electrically connected to the first inductor in series at one end. The first and second inductors are spiral in shape and the orientations of the first inductor and the second inductor are the same so that the spirals progress in the same sense such that a mutual inductance between the first and second inductors is positive and equals a first value. A first capacitor is electrically connected to ground at a first end of the first capacitor, and a second end of the first capacitor is electrically connected to the end of the second inductor at which the second inductor in connected to the first inductor.

Abstract: A lumped-element low-pass filter is formed in a multi-layered substrate. A negative mutual inductance between two inductors is adjusted to a designed value and utilized to improve the rejection in the stopband of the low-pass filter. The two inductors are spiral in shape and the orientations of the first inductor and the second inductor are of opposite sense such that a mutual inductance between the first inductor and the second inductor is negative and equals a designed value. A first capacitor and a second capacitor are shunt-connected to the first and the second inductor respectively to form the elliptic-type filter. A third capacitor is electrically connected to ground at its first end, and electrically connected to the end of the second inductor at which the second inductor in electrically connected to the first inductor in series at its second end.

Abstract: An RF transceiver module for wireless communication devices includes a multi-layered substrate, an RF transceiver IC mounted on the multi-layered substrate for receiving and transmitting voice or data signals, at least one band selection filter mounted on the multi-layered substrate for filtering received RF signals, an antenna switch integrated in the multi-layered substrate which can be switched to transmit RF signals generated by the power amplifiers to the external antenna or to receive RF signals from an external antenna to the RF transceiver IC through the band selection filter, a plurality of passive devices embedded in the multi-layered substrate, and wiring embedded in the multi-layered substrate for electrically connecting the passive devices, the RF transceiver IC, and the band selection filter.