Robin E Michelson

US Patent:

46289330, Dec 16, 1986

Filed:

Jul 23, 1985

Appl. No.:

6/758609

Inventors:

Robin P. Michelson - Redwood City CA

International Classification:

A61N 136
A61F 116

US Classification:

128419R

Abstract:

A visual prosthesis for blindness due to retinal malfunction includes a compact device having a close-packed array of photosensitive devices on one surface thereof. A plurality of electrodes extend from the opposed surface of the device and are connected to the outputs of the photosensitive devices. The device is adapted to be inserted in the posterior chamber of the eye, generally disposed at the focal plane of the optical pathway and impinging on the retina. Anchoring means secure the device with the electrodes operatively connected to the neuron array at the surface of the retina to stimulate the neurons in a pattern corresponding to the illumination pattern of the photosensitive array. The device is powered by externally induced electromagnetic or radio frequency energy, and is encased in a biologically inert housing. An amplifier array may be interposed between the sensing elements and the electrodes to amplify, shape, and time-process the visual signals.

US Patent:

44005903, Aug 23, 1983

Filed:

Dec 22, 1980

Appl. No.:

6/219341

Inventors:

Robin P. Michelson - Redwood City CA

Assignee:

The Regents of the University of California - Berkeley CA

International Classification:

H04R 122
H04R 2500

US Classification:

179107FD

Abstract:

A hearing aid system using a pre-aligned, multichannel, intra-cochlear electrode array for electrically stimulating predetermined locations of the auditory nerve within the cochlea of the ear with selected frequency components of an external sound signal having magnitudes adjusted according to the requirements of the particular user.

US Patent:

44058314, Sep 20, 1983

Filed:

Dec 22, 1980

Appl. No.:

6/219342

Inventors:

Robin P. Michelson - Redwood City CA

Assignee:

The Regents of The University of California - Berkeley CA

International Classification:

H04B 1500
H04R 2500

US Classification:

179 1P

Abstract:

Noise suppression apparatus is interposed between the transducer and the amplifier of a hearing aid, allowing the user to adjust the operation of an automatic level control circuit to provide suppression of background sounds with negligible effect on audibility of close-in sounds.