Optical phono cartridge and system
AssigneePhix Photonics Assembly
InventorsAlbert Hasper, Dimitri Geskus, Ronald Dekker
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Abstract
An optical phonograph cartridge includes an optical vibration sensor that operatively couples to a stylus/cantilever to convert, to optical signals, mechanical vibrations representative of the music encoded in the groove of a vinyl record. The optical vibration sensor includes a photonic integrated circuit includes an input waveguide network for conveying light and an output waveguide network for conveying modulated light, wherein the modulated light is generated by a screen that is attached to the cantilever and is disposed between the input and output waveguide networks.
Claims20
A system comprising an optical phonograph cartridge, the optical phonograph cartridge comprising:
- a stylus, the stylus being physically adapted to trace a groove of a vinyl record;
- a cantilever, wherein the stylus is attached to a first end of the cantilever;
- an optical vibration sensor, wherein the optical vibration sensor operatively couples to the cantilever to convert, to optical signals, mechanical vibrations of the stylus and the cantilever that are representative of music encoded in the groove of the vinyl record;
- and
- at least one optical waveguide to convey the optical signals from the optical phonograph cartridge to a phono stage for signal processing.
A system comprising an optical phonograph cartridge, comprising:
- a stylus, the stylus being physically adapted to trace a groove of a vinyl record;
- a cantilever, wherein the stylus is attached to a first end of the cantilever;
- and
- an optical vibration sensor, including:
- (a) a photonic integrated circuit, the photonic integrated circuit comprising an input waveguide network and an output waveguide network;
- and
- (b) a screen, wherein the screen is coupled to the cantilever and is dimensioned and arranged to physically interact with light propagating through the input waveguide network, the physical interaction resulting in modulation of the light and the generation of optical signals, wherein the optical signals are launched into the output waveguide network.
A system comprising an optical phonograph cartridge, the optical phonograph cartridge comprising:
- a stylus, the stylus being physically adapted to trace a groove of a vinyl record;
- a cantilever, wherein the stylus is attached to a first end of the cantilever;
- and
- an optical vibration sensor, wherein the optical vibration sensor operatively couples to the cantilever to convert, to optical signals, mechanical vibrations of the stylus and the cantilever that are representative of music encoded in the groove of the vinyl record, the optical vibration sensor comprising a photonic integrated circuit having surface waveguides including an input waveguide network for conveying light and an output waveguide network for conveying modulated light.
Dependencies are inferred from the claim text.