Methods and coatings for advanced audio recording and playback

Patent metadata

Field	Value
Publication number	US-10629227-B2
Application number	US-201615752170-A
Country	US
Kind code	B2
Filing date	Aug 12, 2016
Priority date	Aug 12, 2015
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

An embodiment of the invention provides a phonorecord for embodying an audio recording. The phonorecord can comprise a substrate and a conformal coating disposed on at least a portion of the substrate. The substrate can comprise one or more grooves embodying the audio recording.

First claim

The invention claimed is:

1. A phonorecord for embodying an audio recording comprising:
a. a metal substrate;
b. a lacquer coating disposed on at least a portion of the metal substrate, the lacquer coating comprising;
a nitrocellulose lacquer; and
one or more grooves embodying the audio recording; and

c. a conformal coating disposed on at least a portion of the lacquer coating;
wherein the conformal coating is made from a material comprising one or more of quartz (SiO 2 ), sapphire (Al 2 O 3 ), or diamond-like carbon (DLC).

2. The phonorecord of claim 1 , wherein a Mohs Hardness of the conformal coating is greater than a Mohs Hardness of the lacquer coating.

3. The phonorecord of claim 1 , wherein a thickness of the conformal coating is from about 10 nm to about 500 nm.

4. The phonorecord of claim 1 , further comprising a conductive layer disposed onto at least a portion of the conformal coating, the conductive layer configured to shed dust from an outer surface of the phonorecord; and
wherein the conductive layer comprises a carbon-based material selected from the group consisting of carbon nanotubes, graphene, and graphite.

5. The phonorecord of claim 1 , wherein the one or more grooves form a lacquer coating topography.

6. The phonorecord of claim 5 , wherein the conformal coating has a conformal coating topography, the conformal coating topography being substantially identical to the lacquer coating topography.

7. The phonorecord of claim 1 , further comprising an optical layer disposed onto at least a portion of the lacquer coating, the optical layer storing digital data.

Assignees

• Georgia Tech Res Inst
• Olympic Studio Llc

Inventors

• Ready William Jud
• Wagner Brent Karl
• Burnett Joseph Henry
• Moffitt Barak

Classifications

• B32B2255/06

  on metal layer · CPC title

• B32B27/14

  next to a particulate layer · CPC title

• G11B3/72

  Groove formations, e.g. run-in groove, run-out groove · CPC title

• B32B2264/108

  Carbon, e.g. graphite particles · CPC title

• G11B3/682 Primary

  comprising protective coatings, e.g. anti static, anti-friction · CPC title