Optical interface for data transmission
AssigneeTexas Instruments Incorporated
InventorOleg Belogolov
Life of this patent
Estimating the term…
Abstract
A data transmitter includes a keyboard with keys, a digital micromirror device (DMD) having an array of micromirrors, and a light source directed towards the array of micromirrors. The keys are connected to the DMD such that each key corresponds to a separate micromirror of the array of micromirrors in order to generate a unique light pattern associated with each depressed key. An optical transmission channel is configured to receive the unique light pattern and transfer the unique light pattern to a light sensor of a computer.
Claims16
A system comprising:
- a data transmitter adapted to be coupled to a keyboard;
- a first mirror having a first mirror position;
- a second mirror having a second mirror position;
- a mirror setting component coupled to the data transmitter, the mirror setting component configured to set the first mirror position and the second mirror position according to an encoding scheme to generate light patterns in correspondence with the one or more inputs entered at the keyboard, wherein each combination of the one or more inputs entered results in a unique light pattern;
- a data receiver including a light sensor;
- and
- an optical channel between the array of mirrors and the light sensor.
A keyboard comprising:
- inputs;
- a digital micromirror device (DMD) having an array of micromirrors, the array of micromirrors have mirror positions set by a DMD controller electrically coupled to receive signals from the keyboard, the mirror positions set according to an encoding scheme to generate light patterns in correspondence with one or more inputs entered at the keyboard, wherein each combination of the one or more inputs entered results in a unique light pattern;
- a light source directed towards the array of micromirrors;
- and
- an optical transmission channel.
A method of transmitting data from a keyboard to a computer, comprising:
- depressing a first input of a keyboard having keys;
- receiving in a micromirror controller component electrically coupled to the keyboard a signal corresponding to the first input;
- setting by the micromirror controller component at least one micromirror of an array of micromirrors to a first position in response to the depressed first input;
- directing a light towards the array of micromirrors to create a light pattern corresponding to the first input, wherein a unique light pattern is associated with each combination of the one or more inputs of the keyboard;
- and
- directing the light pattern through an optical transmission channel.
A data transmitter comprising:
- a keyboard with inputs;
- a digital micromirror device (DMD) electrically coupled to the keyboard inputs and having an array of micromirrors, wherein the array of micromirrors have separate mirror positions set by a DMD controller for the DMD coupled to receive the inputs from the keyboard, the mirror positions set according to an encoding scheme to generate light patterns in correspondence with the one or more inputs entered at the keyboard, wherein each combination of the one or more inputs entered results in a unique light pattern;
- a light source directed towards the array of micromirrors;
- and
- an optical transmission channel configured to receive a unique light pattern for each entered key.
Dependencies are inferred from the claim text.