Artifact detector for heartbeat rate measuring system
Procedure and means for telemetric measuring of heartbeat and ECG signal, using a magnetic proximity field
Multi-channel digital medical telemetry system Patent #: 4958645
ApplicationNo. 115600 filed on 09/03/1993
US Classes:600/509, Detecting heartbeat electric signal128/901, SUPPRESSION OF NOISE IN ELECTRIC SIGNAL128/903RADIO TELEMETRY
ExaminersPrimary: Kamm, William E.
Assistant: Getzow, Scott M.
Attorney, Agent or Firm
Foreign Patent References
International ClassA61B 005/040.2
Foreign Application Priority Data1992-09-04 FR
AbstractThe system for wireless transmission of medical data comprises a piece of transmission equipment carried by the patient which comprises a unit for differential amplification and band filtering, a unit for rejection of interference noises, particularly the sector and its harmonics, existing in the band of the useful signal, an amplification circuit with automatic gain control and a modulator receiving a carrier frequency, for example microwave at 2.45 GHz and the useful signal, in analog or after a digital conversion and optional processings. The system also comprises a suitable receiving station. The carrier frequency can be either generated in the transmission equipment, or in the receiving station which then transmits the nonmodulated carrier for the transmitters that are associated with it.