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| Number | Title | Issue Date |
| 5841407 | Multiple-tuned normal-mode helical antenna An antenna includes a conductive coil electrically coupled to a wave launching structure and configured such that a plurality of capacitances act electrically in parallel with a plurality of distinct portions of the conductive coil. The capacitances confi... | 11/24/1998 |
| 5816841 | Electrical disconnect for telephone headset An electrical connector is disclosed, designed for use with a telephone headset. The connector utilizes angled contacts for low insertion force, resulting in easier mating and longer life. The connector is provided with a latch that allows the connector t... | 10/06/1998 |
| 5793255 | Tuned RF amplifier A tuned radio frequency (RF) amplifier includes serially connected input and output common emitter amplifiers with closed ac and dc loops for maintaining high input impedance and low output impedance. The closed ac loop includes a parallel resonant circui... | 08/11/1998 |
| 5708724 | Communications headset having a detachable receiver capsule and cable pivot A communications headset is disclosed having a detachable receiver capsule rotatably and pivotally attached to a main body, and a cable pivot for allowing the headset connection cable to pivot with respect to the receiver capsule. This combination of feat... | 01/13/1998 |
| 5687231 | Articulated headset A communication headset is provided which includes two curved housings that rotate with respect to one another to allow the headset to be held firmly in place over one ear of the user. One housing supports a microphone boom which has a free end positionab... | 11/11/1997 |
| 5553312 | Data transfer and communication network A data transfer and communication system is disclosed including a central station and a plurality of remote, relay terminals. Each relay terminal includes a data entry device such as a keypad or bar code wand. A headset is associated with each relay termi... | 09/03/1996 |
| 5533122 | Articulated headset support A communication headset is provided which includes two curved housings that rotate with respect to one another to allow the headset to be held firmly in place over one ear of the user. One housing supports a microphone boom which has a free end positionab... | 07/02/1996 |
| 5469505 | Communications headset having a ball joint-mounted receiver assembly A communication headset is disclosed having a microphone for transmitting the user's voice and a receiver for transmitting audio signals into the user's ear. The headset includes a resilient, generally U-shaped headband, to be worn over the head, having a... | 11/21/1995 |
