1
Raimund Martin, Werner Hohn, Reinhard Kern: Programmable hearing aid. Siemens Augiologische Technik, Hill Steadman & Simpson, January 20, 1998: US05710820 (56 worldwide citation)

A hearing aid that has an analog part with a Class D final amplifier stage for audio signal processing, a digital part with an interface, a memory stage as well as supply stage for generating the voltage and control signals. The hearing aid has a utilized integrated circuit which also includes a pre ...


2
Raimund Martin: Hearing aid having two hearing apparatuses with optical signal transmission therebetween. Siemens Augiologische Technik, Hill & Simpson, November 14, 2000: US06148087 (28 worldwide citation)

For binaural hearing, a hearing aid worn at the head has two hearing apparatuses respectively allocated to the ears, with at least one of the hearing apparatuses having a transmitter and the other hearing apparatus having a receiver for an optical signal transmission from the transmitting hearing ap ...