Agency for Science, Technology and Research

The Procter Gamble Company

National University of Singapore

Xin Liu

Jun Ye Zhou

Minkyu Je

Jie Zhang

Yuanjin Zheng

Siew Lay Lim

Tao Wang

Wei Peng Goh

Chee Keong Ho

Bin Zhao

Kapilanjan Krishan

Ee Lim Tan

Jung Hyup Lee

Shienny Karwita Tailan

David Lewis Alexander Tolley

Ragavan Kalatharan

Vishal Vinayak Kulkarni

Ning Xue

Chee Keong Michael Ho

Myint Wai Phyu

Jingjing Lan

Aung Ko Ko Kyaw

Yi-Luen Ellen Do

Ranasinghe Arachchilage Nimesha Ranasinghe

Disclosed herein is a comb sensor for measuring combing resistance, wherein the comb sensor comprises: a comb or brush comprising a handle, a head connected to the handle, and teeth connected to the head; and a bend sensor located on at least one of the teeth, to measure the bending of the one of the teeth. The present invention provides improved sensitivity and/or detailed measurement result.

Comb sensor for measuring combing resistance

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 method for detecting and correcting an error in a circuit is provided. The circuit is configured to receive an input signal and clock the input signal with a rising and falling timing signal. The method includes detecting late arrival signal transition of the input signal, at an intermediate point of a path, the path being one through which the input signal transits. The method further includes predicting an error in the input signal in response to detecting the late arrival signal transition at the intermediate point of the path. In addition, the method includes correcting the error in the input signal by manipulating the timing signal and/or a supply voltage.

Detecting and correcting an error in a digital circuit

An electrocardiogram (ECG) signal processing system is provided. The ECG signal processing system comprises an analog-to-digital converter (ADC) configured to convert an input analog ECG signal into a digital ECG signal, and a digital signal processing engine (DSPE) coupled to the ADC to receive the digital ECG signal. The DSPE is configured to decompose and reconstruct the digital ECG signal. A dynamic system clock source is coupled to the ADC and the DSPE for dynamic signal sampling, the dynamic system clock source clocking the ADC and the DSPE at a first frequency fto detect one or more first parameters of the input analog ECG signal and at a second frequency fto detect one or more second parameters of the input analog ECG signal.

Real-time multi-functional ECG signal processing system, DSPE for the ECG signal processing system, and method thereof

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

An electrocardiogram signal processing system is provided which includes: a wavelet transformation unit comprising a plurality of outputs, each output being connected to one of a plurality of scales, wherein the wavelet transformation unit is adapted to transform an input electrocardiogram signal into a set of wavelets, each wavelet being output to one of the scales; a plurality of signal processing blocks, each of the signal processing blocks coupled to a respective output of the wavelet transformation unit and configured to receive and process the wavelet from the respective output, wherein the signal processing blocks provide processing functions which differ from one another.

Electrocardiogram signal processing system

Growing community of inventors

Singapore, Singapore

Xin Liu