Agency for Science, Technology and Research

Singapore Health Services Pte Ltd

Physical Logic Ag

Maradin Ltd.

Minkyu Je

Yuan Gao

Xin Liu

Lei Yao

Jia Hao Cheong

Kuang-Wei Cheng

Yuanjin Zheng

Jun Ye Zhou

Julius Ming Lin Tsai

Tao Wang

Xiaodan Zou

Kok Lim Chan

Chun Huat Heng

Mi Kyoung Park

Pradeep Basappa Khannur

Ming-Yuan Cheng

Abdur Rub Abdur Rahman

San Jeow Cheng

Ruiqi Lim

Ravinder Pal Singh

Zhiming Chen

Chee Keong Ho

Margarita Sofia Narducci

Jai Prashanth Rao

Junghyup Lee

I Made Darmayuda

Amit Bansal

Tal Langer

Jung Hyup Lee

Vishal Vinayak Kulkarni

Rui-Feng Xue

Hyouk-Kyu Cha

Wei Mong Tsang

Tao Sun

Tack Boon Yee

Simon Sheung Yan Ng

Guo-Jun Zhang

Tshun Chuan Chai

Cheng Fang

Jiahao Cheong

Andrew Kunil Choe

Bernal Oliver Daniel

David Nuttman

Wai Pan Chan

Meng Tong Tan

There is provided a monolithically integrated multimodal sensor device for intracranial neuromonitoring, the sensor device including: a single substrate; a temperature sensor formed on a first portion of the single substrate for detecting temperature; a pressure sensor formed on a second portion of the single substrate for detecting intracranial pressure; and an oxygen sensor formed on a third portion of the single substrate for detecting oxygen concentration. In particular, sensing portions of the temperature sensor, the oxygen sensor and the pressure sensor, respectively, are formed at different layers of the sensor device. There is also provided an integrated multimodal sensor system incorporating the sensor device and the associated methods of fabrication.

Integrated multimodal sensor device for intracranial neuromonitoring

According to various embodiments, there is provided a method for generating a reference clock signal, the method including discharging a capacitive element to a discharged state, when a reset signal has a predetermined reset state; charging the capacitive element from the discharged state to a first voltage, when a charge signal has a predetermined charge state; comparing the first voltage to a zero voltage, when a compare signal has a predetermined compare state; generating a second voltage based on the comparing of the first voltage to the zero voltage; generating a clock signal based on the second voltage, using an oscillator; and generating each of the reset signal, the charge signal and the compare signal, based on the clock signal.

Reference clock signal generators and methods for generating a reference clock signal

In various embodiments of the present disclosure, there is provided an energy harvesting apparatus, including: an energy harvester for generating electric power from an ambient source; a power conditioning circuit coupled to the output of the energy harvester; including: a boost converter module; a buck-boost converter module; and a power modification control module; wherein the power modification control module is configured to initialize the energy harvesting apparatus from inactivity to a normal energy harvesting state by operating the boost converter module, and operating the buck-boost converter when an output voltage of the power conditioning circuit rises to a predetermined value. A corresponding method of operating an energy harvesting apparatus is provided.

Energy harvesting apparatus and a method for operating an energy harvesting apparatus

A system and method for body channel communication is provided. The system includes a transceiver which encodes multiple bits per symbol when operating in a high data rate mode by selecting a first Walsh code in response to a first set of multiple bits of data and selecting a second Walsh code in response to a second set of multiple bits of data, both Walsh codes selected from a multiple-bit Walsh code sequence. The transceiver also generates a multi-level transmission signal having a predetermined symbol frequency by stacking the first Walsh code onto the second Walsh code, and transmits the multi-level signal having the first predetermined symbol frequency through the body channel. The transceiver also has additional modes of operation which include a normal mode and a low power mode, the low power mode decoding the multiple bits from the signal in response to harmonic energy from a harmonic frequency generated by the multiple-bit Walsh code sequence. Also, the transceiver modulates an M-Sequence code with the multi-bit Walsh code sequence up to a desired frequency band associated with the predetermined frequency in order to improve auto-correlation after passing through the body channel.

Method and system for high bandwidth and low power body channel communication

A motor driver circuit for a Micro-electro-mechanical systems (MEMS) micro-mirror device, the motor driver circuit comprising: a non-inverting buffer circuit; an inverting buffer circuit; and a scalar circuit, the scalar circuit comprising a Supply Tracked Common Mode Voltage (VCMSC) generation circuit, wherein the non-inverting buffer circuit, the inverting buffer circuit, and the scalar circuit are configured, together with the VCMSC generation circuit, to provide a common mode voltage to a motor in response to a VCMSC voltage generated by the VCMSC generation circuit, and wherein the VCMSC voltage is generated by the VCMSC generation circuit in response to a control supply voltage and a driver supply voltage provided to the VCMSC generation circuit.

Supply independent and programmable non-resonant MEMS driver

In various embodiments of the present disclosure, there is provided a receiver for body channel communication. The receiver includes an electrode configured to receive an incoming signal transmitted as a multi-level transmission signal from a transmitter through a body channel, a differentiator configured to obtain a time derivative of the incoming signal indicating a plurality of data transitions, and an analog to digital converter configured to generate a multi-level output signal representing the multi-level transmission signal based on the plurality of data transitions. A corresponding method of controlling a receiver for body channel communications is provided.

Receiver for body channel communication and a method of operating a receiver therefrom

A power transfer device is provided. The power transfer device includes a circuit arrangement including a primary side having a primary coil; a secondary side having a secondary coil inductively coupled to the primary coil and a load transformation unit; wherein the load transformation unit includes an inductor and a capacitor; wherein the secondary coil, the inductor and the capacitor respectively includes a first terminal and a second terminal; wherein the first terminal of the secondary coil is coupled to the first terminal of the capacitor, the second terminal of the capacitor is coupled to the first terminal of the inductor, and the second terminal of the inductor is coupled to the second terminal of the secondary coil.

Power transfer device

A method and an apparatus for a duty-cycled injection locked oscillator is provided for frequency shift keyed (FSK) signal transmissions. The oscillator includes a resonance LC tank and a first switching device. The first switching device is coupled to the resonance LC tank and injects an initial current pulse with a predetermined pulse magnitude into the resonance LC tank. The initial current pulse also fixes an initial phase of the duty-cycled injection locked free-running oscillator in response to the predetermined magnitude of the initial current pulse to enable fast settling of injection locking and high data rate operation of the duty-cycled injection locked oscillator. The oscillator also includes a second switching device, such as a differential pair of switching devices. The second switching device is coupled to the LC resonance tank for injecting a gated periodic reference signal having a duty cycle modified to reduce power of the reference signal by approximately seventy-five per cent.

Method and apparatus for a duty-cycled harmonic injection locked oscillator

The present invention provides a nerve stump interface for generating an electric field for promoting and guiding axonal regeneration and an electric field assisted axonal regeneration system. The nerve stump interface comprises a sieve having a plurality of holes. A strip is coupled to the sieve. A first electrode is provided at one of the plurality of holes and a second electrode is provided on the strip. The strip is arranged to space the second electrode from the first electrode. The first electrode and the second electrode are for generating the electric field. At least one securing element is provided on a side of the strip to allow that side of the strip to affix against an opposite side of the strip. The present invention also provides a method for assembling the electric field assisted axonal regeneration system.

Nerve stump interface and axonal regeneration system for generating an electric field for promoting and guiding axonal regeneration

A sensor interface circuit is provided for resolving sensor signals from a plurality of sensors into a digital sensor signal. The sensor interface circuit includes a relaxation oscillator that receives and pre-processes the sensor signals to generate an analog sensor signal. The relaxation oscillator includes one or more dynamic circuits. The sensor interface circuit also includes a monitoring module for receiving the analog sensor signal and generating the digital sensor signal in response thereto. There is also provided a sensor system front-end and a relaxation oscillator.

Low power high resolution sensor interface

Various embodiments provide a method for processing a stimulation signal. The method may include monitoring an output voltage on an electrode, the electrode being provided with the stimulation signal; determining whether the output voltage is lower than a threshold voltage; if it is determined that the output voltage is lower than the threshold voltage, modifying the waveform of the stimulation signal; and providing the modified stimulation signal to an object via the electrode.

Stimulator and method for processing a stimulation signal

According to an embodiment of the present invention, a method of determining or adjusting the sensitivity of a biosensor arrangement comprising at least one field effect biosensor is provided, each of the at least one field effect biosensor comprising: a semiconductor substrate comprising a source region, a drain region and a channel region disposed between the source region and the drain region; a gate isolation layer covering the channel region; and a reference electrode disposed over the gate isolation layer such that a electrolytic solution to be sensed can be provided between the reference electrode and the gate isolation layer. The method comprises the following processes carried out for each field effect biosensor: providing an electrolytic solution between the reference electrode and the gate isolation layer; applying a source/drain voltage between the source region and the drain region; varying a reference voltage supplied to the reference electrode over a voltage range; measuring a resulting drain current while varying the reference voltage in order to obtain a corresponding drain current function; and determining the sensitivity of the field effect biosensor based on the reference voltage supplied to the reference electrode and the corresponding drain current function.

Method of determining a sensitivity of a biosensor arrangement, and biosensor sensitivity determining system

An analogue to digital converter includes a first input connection to receive a first part of the analogue input signal, a second input connection to receive a second part of the analogue input signal, a first and second plurality of capacitors, each capacitor of the first plurality of capacitors forms a capacitor pair with a corresponding capacitor in the second plurality of capacitors During a sampling period, the first input connection couples the first part of the analogue input signal to a first contact of each capacitor of the first plurality of capacitors and the second input connection couples the second part of the analogue input signal to a first contact of each capacitor of the second plurality of capacitors. Further, a switching array couples a second contact of each capacitor of the first and second plurality of capacitors to a common mode voltage to determine a first bit of a digital output signal.

Analogue to digital converter, an integrated circuit and medical device

A recording circuit is provided. The recording circuit includes a multiplexing circuit configured to receive a plurality of input signals and to produce a multiplexed output signal including the plurality of input signals, and a plurality of sampling circuits electrically coupled in parallel to each other, each sampling circuit being configured to sample a portion of the multiplexed output signal corresponding to an input signal of the plurality of input signals and the sampling circuits configured to alternately produce an output signal corresponding to the sampled portion.

Recording circuit and a method of controlling the same

A circuit arrangement is provided. The circuit arrangement includes a first input terminal and a second input terminal, a first transistor and a second transistor coupled to each other and to the first input terminal and the second input terminal, each of the first transistor and the second transistor having a first controlled terminal, a second controlled terminal and a control terminal, an input matching circuit coupled to the first input terminal, the second input terminal, the first transistor and the second transistor, a first resistive element coupled between the control terminal and the second controlled terminal of the first transistor, a second resistive element coupled between the control terminal and the second controlled terminal of the second transistor, and an output terminal coupled to the second controlled terminals of the first transistor and the second transistor.

Circuit arrangement and receiver including the circuit arrangement

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Singapore, Singapore

Minkyu Je