Agere Systems Inc.

Air Products and Chemicals, Inc.

Agere Systems Cuardian Corp.

Michael S Toth

Lane Allen Smith

Donald Raymond Laturell

Jonathan Herman Fischer

Michael G Williams

Keith Eugene Hollenbach

Weilin Zhu

Cecilia Anna Paulette Petit

Robert S Barbieri

Michael Andrew Magent

Gregory Robert Glick

A computer-based method for reducing or eliminating baseline drift from a biological (bio) signal includes the steps of dividing the bio signal into a plurality of shorter signals having fixed time intervals, fitting a corresponding portion of a baseline function to a baseline of a respective one of each of the shorter signals, and subtracting the baseline function from the bio signal, resulting in a bio signal with a flat baseline.

Method for reducing baseline drift in a biological signal

A method for archiving biomedical data generated by a data collection device, includes the steps of automatically determining a data format in which the collection device is configured to store the biomedical data onto a computer-readable storage medium, based on the data format, extracting the biomedical data from the storage medium, and transmitting the extracted data to a database in which the extracted data is archived.

Method and system for archiving biomedical data generated by a data collection device

A computer-based method for detecting features in a digitally sampled biological (bio) signal includes the steps of applying a wavelet transform to the bio signal to generate a list of wavelet transform coefficients, ranking the coefficients according to value or frequency, and removing at least one low value or low frequency coefficient. The method further includes the steps of performing an inverse wavelet transform using the remaining coefficients to generate a reconstructed signal, and detecting feature locations using the reconstructed signal.

Method for detecting bio signal features in the presence of noise

A line powered data access arrangement (DAA) is disclosed which adaptively allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage device such as a charge capacitor is charged from a charge pump formed from a differential clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of an off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the first power rail or second power rail as line power conditions and on-hook/off-hook conditions warrant.

Distribution of current draw in a line powered DAA

Detection of low tip/ring currents in a line powered DAA

A line powered codec which adaptively allows operation with power supplied from a telephone line in many countries as conditions warrant. A startup procedure uses country-specific register settings, which are powered and maintained from a low voltage side other than the telephone line. Thus, during low line power conditions a programmed state of the line powered codec can be maintained even after a power loss in the telephone line. In another aspect, a current and voltage detection module in the line powered codec is always powered from the telephone line. If sufficient power is not present, the line powered codec does not power up. In yet another aspect, a plurality of power rails may be provided.

Maintaining an off-hook condition during a call bridge

Startup procedure for international line powered DAA

A low power band gap circuit which uses the thermal properties of MOS devices to compensate for bipolar device behavior and provide temperature independent voltage and current sources.

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Allentown, PA, United States of America

Michael S Toth