Method and apparatus for telemetering data bidirectionally betwe

Details Method and apparatus for telemetering data bidirectionally betwe Method and apparatus for telemetering data bidirectionally betwe

1996-07-02

1998-06-23

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 32, 128903, A61M 137

Patent

active

057698767

ABSTRACT:
An improved system is disclosed for telemetering data bidirectionally between two devices such as an implantable device and an external programmer. The two devices both include clock generators that operate at the same nominal frequency, but only one of the devices (i.e., the programmer) includes a phase-locked loop receiver that adjusts the frequency and phase of its clock signal to match that of the received data. The clock generator of the other device (i.e., the implantable device) generates a fixed-phase clock signal, which is selectively inverted or not inverted, to adjust its phase by 180.degree.. This selective 180.degree. adjustment enables the programmer's phase-locked loop receiver to have a reduced, .+-.90.degree. pull-in range, which simplifies its construction and reduces the time required to achieve synchronization.

REFERENCES:
patent: 4561443 (1985-12-01), Hogrefe et al.
patent: 4681111 (1987-07-01), Silvian
patent: 4847617 (1989-07-01), Silvian
patent: 4944299 (1990-07-01), Silvian
patent: 5058581 (1991-10-01), Silvian
patent: 5264843 (1993-11-01), Silvian
patent: 5466246 (1995-11-01), Silvian
patent: 5522866 (1996-06-01), Fernald
patent: 5562713 (1996-10-01), Silvian
patent: 5569307 (1996-10-01), Schulman et al.

Affiliated with

Also associated with

Rating

Method and apparatus for telemetering data bidirectionally betwe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for telemetering data bidirectionally betwe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for telemetering data bidirectionally betwe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1390618