Digital gain control for the reception of telemetry signals from implanted medical devices
Patent 4531523 Issued on July 30, 1985. Estimated Expiration Date: 
October 4, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 4, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesProgrammable human tissue stimulator Medical device Digitally controlled amplitude regulating device for electrocardiographic signals Patent #: 4325384 InventorAssigneeApplicationNo. 06/657446 filed on 10/04/1984US Classes:607/32, Communicating with pacer (e.g., telemetry)128/903, RADIO TELEMETRY600/509Detecting heartbeat electric signalExaminersPrimary: Kamm, William E.Attorney, Agent or FirmInternational ClassA61N 1/372 (20060101)AbstractA gain control system for verifying the programming of an implanted medical device is provided for an external programming unit which receives transmitted signals from the implanted unit and verifies if these signals represent valid "1" and "0" data bits. If the signals of an encoded message unit are valid signals then processing continues. If some of the signals are invalid due to noise interference, the gain of the receiver of the programming unit is decremented in steps as long as the error rate exceeds a predetermined number of errors per unit time.Field of SearchRADIO TELEMETRY | |
