Telecommunications – Transmitter and receiver at separate stations – Near field
Reexamination Certificate
2004-10-20
2009-11-24
Pham, Tuan A (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Near field
C455S042000, C455S077000, C455S102000, C340S010300, C340S010400, C340S010500, C607S032000, C607S033000, C607S060000
Reexamination Certificate
active
07623827
ABSTRACT:
A transmission circuit for an RF inductive link, particularly for an implanted device such as a cochlear implant. In a preferred form, the transmission circuit1includes a transmitter coil24and a damping device, including an auxiliary coil4and switch6. The switch is operated to close the coil circuit when data zeros are transmitted. This has the advantage of improving modulation depth without placing stress on the RF driver output switches.
REFERENCES:
patent: 7079901 (2006-07-01), Loftin et al.
patent: 2002/0032471 (2002-03-01), Loftin et al.
patent: 2005/0283207 (2005-12-01), Hochmair et al.
Australian Application 2004222765- First Examiner's Report dated Feb. 13, 2009.
Cochlear Limited
Connolly Bove & Lodge & Hutz LLP
Pham Tuan A
LandOfFree
Voltage overshoot protection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage overshoot protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage overshoot protection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4101500