Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Floating dc current source for a subscriber loop circuit

Floating dc current source for a subscriber loop circuit

US Patent 4511763 · Granted Apr 16, 1985

Estimated economic value: $28,768,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus for isolating the voice frequency path from the floating battery feed 1985
Supervision and dial pulse detection circuit for a telephone subscriber line1985
Current sink for DPT channel unit1984