78337150
Dec 5, 2003
Jul 26, 2005
Audio-enhancing technology in the nature of speech signal processing for headsets for use with telephones, mobile phones, personal digital assistants, gaming machines, computers, two-way radios, telephone headset amplifiers and adapters; [ and parts and attachments therefor in the nature of receivers, microphones, ear loops, head bands, ear cushions and cables ]
Electrical and Scientific Apparatus