Spectrum Signal Processing, Inc.
Records under this name other than patents Spectrum Signal Processing, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Spectrum Signal Processing, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,845,131 | Differential signaling power management Formerly held Term ended Term ended Sep 17, 2022 · From the USPTO record | Term ended | Term ended Sep 17, 2022 | From the USPTO record |
| US 7,082,487 | Multiple configurable I/O common mezzanine cards Formerly held Lapsed on the fee record Ended Jul 25, 2010 · From the USPTO record | Lapsed on the fee record | Ended Jul 25, 2010 | From the USPTO record |
| US 4,308,424 | Simulated stereo from a monaural source sound reproduction system Term ended Term ended no later than Dec 29, 2001 · Low confidence | Term ended | Term ended no later than Dec 29, 2001 | Low confidence |
| US 5,026,051 | Sound imaging apparatus for a video game system Term ended Term ended no later than Jun 25, 2011 · Low confidence | Term ended | Term ended no later than Jun 25, 2011 | Low confidence |
| US 5,046,097 | Sound imaging process Term ended Term ended no later than Sep 3, 2011 · Low confidence | Term ended | Term ended no later than Sep 3, 2011 | Low confidence |
| US 5,052,685 | Sound processor for video game Term ended Term ended no later than Oct 1, 2011 · Low confidence | Term ended | Term ended no later than Oct 1, 2011 | Low confidence |
| US 5,095,507 | Method and apparatus for generating incoherent multiples of a monaural input signal for sound image placement Term ended Term ended no later than Mar 10, 2012 · Low confidence | Term ended | Term ended no later than Mar 10, 2012 | Low confidence |
| US 5,105,462 | Sound imaging method and apparatus Term ended Term ended no later than Apr 14, 2012 · Low confidence | Term ended | Term ended no later than Apr 14, 2012 | Low confidence |
| US 5,138,660 | Sound imaging apparatus connected to a video game Term ended Term ended no later than Aug 11, 2012 · Low confidence | Term ended | Term ended no later than Aug 11, 2012 | Low confidence |
| US 5,208,860 | Sound imaging method and apparatus Term ended Term ended no later than May 4, 2013 · Low confidence | Term ended | Term ended no later than May 4, 2013 | Low confidence |