Patent References 3833005 Multifrequency drive clock Command atrial cardioverting device Device for non-invasive programming of implanted body stimulators Implantable digital cardiac pacer having externally selectible operating parameters and "one shot" digital pulse generator for use therein Complex pulse repetition frequency generator Patent #: 4049953 InventorsApplicationNo. 05/917139 filed on 06/19/1978US Classes:607/30Remotely changing, (e.g., programming, pacer) parameters or operationExaminersPrimary: Kamm, William E.Attorney, Agent or FirmInternational ClassesG08C 19/22 (20060101)A61N 1/372 (20060101) A61N 1/362 (20060101) A61N 1/37 (20060101) G08C 19/16 (20060101) Foreign Application Priority Data1977-08-19 GBAbstractA plurality of programming bits are placed into a parallel in-serially out register. When the programmer is activated, a monostable resets a counter, and energizes an oscillator which clocks the counter. Three subintervals from the counter are utilized for pulse width modulation of the programming signals. Once for each bit, the output is energized and begins transmitting pulses at the lowest subinterval rate. Depending upon the logic state of each bit, the transmission pulse is terminated either at the second or the third subinterval time. | |