Abstract: A system and method for adjusting power employed by a light emitting device used for medical applications, such as measurement of patient parameter. A system or device includes a light emitting device, a power unit coupled to the light emitting device for powering the light emitting device and responsive to a control signal for adjusting power applied to the light emitting device, and a control unit for providing the control signal and coupled to the power unit, the control signal being determined in response to a characteristic of a signal associated with a physiological parameter measured using light produced by the light emitting device.

Abstract: A system and method for adjusting power employed by a light emitting device used for medical applications, such as measurement of patient parameter. A system or device includes a light emitting device, a power unit coupled to the light emitting device for powering the light emitting device and responsive to a control signal for adjusting power applied to the light emitting device, and a control unit for providing the control signal and coupled to the power unit, the control signal being determined in response to a characteristic of a signal associated with a physiological parameter measured using light produced by the light emitting device.

Abstract: A data compression method and apparatus for processing a stream of original data samples to produce a compressed data stream that comprises both compressed and not-compressed data samples. The technique includes a data compression means for applying a data compression technique to said original data samples so as to develop a sequence of compressed original samples and not-compressed original samples, and providing the sequence of samples in a data portion of a transmission packet. A compression indicator means is also provided for developing a sequence of bits indicating which of the samples in the compressed data stream are representative of one of the compressed original samples and not-compressed original samples, and providing the sequence of bits in a map portion of the transmission packet. The map portion of the transmission packet is used for rapid identification and decompression of the compressed data.

Abstract: In a patient monitoring system which includes a signal transmission path between that portion of the patient monitoring system which acquires the physiological signals and that portion of the system which processes and displays the acquired signals, a method and apparatus is provided for displaying to a user of the system a time delay that is associated with a delay of the display of the physiological signals.