Assignee
ACS COMMUNICATIONS
US·17 granted patents·1,480 citations·filing 1981–1994
Top patents by PatentIndex Score
17 records- 0198US4928307ATime dependent, variable amplitude threshold output circuit for frequency variant and frequency invariant signal discriminationACS COMMUNICATIONS·Filed 1989·Granted May 22, 1990·248 cites·6 claims
- 0295USD344730SCommunications headsetACS COMMUNICATIONS·Filed 1992·Granted Mar 1, 1994·66 cites·1 claims
- 0395USD299344SFoam ear cushion for telephone headset or similar articleACS COMMUNICATIONS·Filed 1986·Granted Jan 10, 1989·99 cites·1 claims
- 0494US4420657AAdjustable headsetACS COMMUNICATIONS·Filed 1981·Granted Dec 13, 1983·163 cites·18 claims
- 0592US5450496ACommunications headset having a detachable receiver capsule and cable pivotACS COMMUNICATIONS·Filed 1993·Granted Sep 12, 1995·138 cites·7 claims
- 0692USD318053SHeadsetACS COMMUNICATIONS·Filed 1989·Granted Jul 9, 1991·64 cites·1 claims
- 0789US4754484AConvertible handset/headset for telephoneACS COMMUNICATIONS·Filed 1986·Granted Jun 28, 1988·130 cites·12 claims
- 0885US4864610AEarpiece for a telephone headsetACS COMMUNICATIONS·Filed 1987·Granted Sep 5, 1989·98 cites·14 claims
- 0984US5260997AArticulated headsetACS COMMUNICATIONS·Filed 1992·Granted Nov 9, 1993·63 cites·7 claims
- 1084US4926961AHinged acoustical voice tubeACS COMMUNICATIONS·Filed 1988·Granted May 22, 1990·79 cites·9 claims
- 1183US5381486ACommunications headset having a universal joint-mounted microphone boomACS COMMUNICATIONS·Filed 1994·Granted Jan 10, 1995·97 cites·5 claims
- 1279US5226077AHeadset amplifier with automatic log on/log off detectionACS COMMUNICATIONS·Filed 1992·Granted Jul 6, 1993·68 cites·20 claims
- 1377USD339355STelephone headsetACS COMMUNICATIONS·Filed 1991·Granted Sep 14, 1993·19 cites·1 claims
- 1473US5414769AArticulated headset supportACS COMMUNICATIONS·Filed 1994·Granted May 9, 1995·38 cites·5 claims
- 1569US5488657AApparatus for and method of operating an automatic log on/log off circuit in a telephone system by disconnecting a headsetACS COMMUNICATIONS·Filed 1993·Granted Jan 30, 1996·40 cites·37 claims
- 1668US5353347ATelephone headset amplifier with battery saver, receive line noise reduction, and click-free mute switchingACS COMMUNICATIONS·Filed 1992·Granted Oct 4, 1994·44 cites·19 claims
- 1756US5070527ATime dependant, variable amplitude threshold output circuit for frequency variant and frequency invarient signal discriminationACS COMMUNICATIONS·Filed 1990·Granted Dec 3, 1991·26 cites·3 claims
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